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2023-08-24tools: ynl-gen: support empty attribute listsJakub Kicinski
Differentiate between empty list and None for member lists. New families may want to create request responses with no attribute. If we treat those the same as None we end up rendering a full parsing policy in user space, instead of an empty one. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230824003056.1436637-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24tools: ynl-gen: fix collecting global policy attrsJakub Kicinski
We look for attributes inside do.request, but there's another layer of nesting in the spec, look inside do.request.attributes. This bug had no effect as all global policies we generate (fou) seem to be full, anyway, and we treat full and empty the same. Next patch will change the treatment of empty policies. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230824003056.1436637-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24tools: ynl-gen: set length of binary fieldsJakub Kicinski
Remember to set the length field in the request setters. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230824003056.1436637-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24tools: ynl: allow passing binary dataJakub Kicinski
Recent changes made us assume that input for binary data is in hex. When using YNL as a Python library it's possible to pass in raw bytes. Bring the ability to do that back. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230824003056.1436637-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24selftests/mm: fix WARNING comparing pointer to 0Anh Tuan Phan
Remove comparing pointer to 0 to avoid this warning from coccinelle: ./tools/testing/selftests/mm/map_populate.c:80:16-17: WARNING comparing pointer to 0, suggest !E ./tools/testing/selftests/mm/map_populate.c:80:16-17: WARNING comparing pointer to 0 Link: https://lkml.kernel.org/r/20230817160033.90079-1-tuananhlfc@gmail.com Signed-off-by: Anh Tuan Phan <tuananhlfc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24selftests: cgroup: fix test_kmem_memcg_deletion kernel mem checkLucas Karpinski
Currently, not all kernel memory usage is being accounted for. This commit switches to using the kernel entry within memory.stat which already includes kernel_stack, pagetables, and slab. The kernel entry also includes vmalloc and other additional kernel memory use cases which were missing. Link: https://lkml.kernel.org/r/bvrhe2tpsts2azaroq4ubp2slawmop6orndsswrewuscw3ugvk@kmemmrttsnc7 Signed-off-by: Lucas Karpinski <lkarpins@redhat.com> Acked-by: Shakeel Butt <shakeelb@google.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Shuah Khan <shuah@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Zefan Li <lizefan.x@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24minmax: add in_range() macroMatthew Wilcox (Oracle)
Patch series "New page table range API", v6. This patchset changes the API used by the MM to set up page table entries. The four APIs are: set_ptes(mm, addr, ptep, pte, nr) update_mmu_cache_range(vma, addr, ptep, nr) flush_dcache_folio(folio) flush_icache_pages(vma, page, nr) flush_dcache_folio() isn't technically new, but no architecture implemented it, so I've done that for them. The old APIs remain around but are mostly implemented by calling the new interfaces. The new APIs are based around setting up N page table entries at once. The N entries belong to the same PMD, the same folio and the same VMA, so ptep++ is a legitimate operation, and locking is taken care of for you. Some architectures can do a better job of it than just a loop, but I have hesitated to make too deep a change to architectures I don't understand well. One thing I have changed in every architecture is that PG_arch_1 is now a per-folio bit instead of a per-page bit when used for dcache clean/dirty tracking. This was something that would have to happen eventually, and it makes sense to do it now rather than iterate over every page involved in a cache flush and figure out if it needs to happen. The point of all this is better performance, and Fengwei Yin has measured improvement on x86. I suspect you'll see improvement on your architecture too. Try the new will-it-scale test mentioned here: https://lore.kernel.org/linux-mm/20230206140639.538867-5-fengwei.yin@intel.com/ You'll need to run it on an XFS filesystem and have CONFIG_TRANSPARENT_HUGEPAGE set. This patchset is the basis for much of the anonymous large folio work being done by Ryan, so it's received quite a lot of testing over the last few months. This patch (of 38): Determine if a value lies within a range more efficiently (subtraction + comparison vs two comparisons and an AND). It also has useful (under some circumstances) behaviour if the range exceeds the maximum value of the type. Convert all the conflicting definitions of in_range() within the kernel; some can use the generic definition while others need their own definition. Link: https://lkml.kernel.org/r/20230802151406.3735276-1-willy@infradead.org Link: https://lkml.kernel.org/r/20230802151406.3735276-2-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24merge mm-hotfixes-stable into mm-stable to pick up depended-upon changesAndrew Morton
2023-08-24perf jevents: Don't append Unit to descIan Rogers
Unit with the PMU name is appended to desc in jevents.py, but on hybrid platforms it causes the desc to differ from the regular non-hybrid system with a PMU of 'cpu'. Having differing descs means the events don't deduplicate. To make the perf list output not differ, append the Unit on again in the perf list printing code. On x86 reduces the binary size by 409,600 bytes or about 4%. Update pmu-events test expectations to match the differently generated pmu-events.c code. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824183212.374787-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24selftests: cachestat: catch failing fsync test on tmpfsAndre Przywara
The cachestat kselftest runs a test on a normal file, which is created temporarily in the current directory. Among the tests it runs there is a call to fsync(), which is expected to clean all dirty pages used by the file. However the tmpfs filesystem implements fsync() as noop_fsync(), so the call will not even attempt to clean anything when this test file happens to live on a tmpfs instance. This happens in an initramfs, or when the current directory is in /dev/shm or sometimes /tmp. To avoid this test failing wrongly, use statfs() to check which filesystem the test file lives on. If that is "tmpfs", we skip the fsync() test. Since the fsync test is only one part of the "normal file" test, we now execute this twice, skipping the fsync part on the first call. This way only the second test, including the fsync part, would be skipped. Link: https://lkml.kernel.org/r/20230821160534.3414911-3-andre.przywara@arm.com Signed-off-by: Andre Przywara <andre.przywara@arm.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Nhat Pham <nphamcs@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24selftests: cachestat: test for cachestat availabilityAndre Przywara
Patch series "selftests: cachestat: fix run on older kernels", v2. I ran all kernel selftests on some test machine, and stumbled upon cachestat failing (among others). These patches fix the run on older kernels and when the current directory is on a tmpfs instance. This patch (of 2): As cachestat is a new syscall, it won't be available on older kernels, for instance those running on a development machine. At the moment the test reports all tests as "not ok" in this case. Test for the cachestat syscall availability first, before doing further tests, and bail out early with a TAP SKIP comment. This also uses the opportunity to add the proper TAP headers, and add one check for proper error handling (illegal file descriptor). Link: https://lkml.kernel.org/r/20230821160534.3414911-1-andre.przywara@arm.com Link: https://lkml.kernel.org/r/20230821160534.3414911-2-andre.przywara@arm.com Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. Conflicts: include/net/inet_sock.h f866fbc842de ("ipv4: fix data-races around inet->inet_id") c274af224269 ("inet: introduce inet->inet_flags") https://lore.kernel.org/all/679ddff6-db6e-4ff6-b177-574e90d0103d@tessares.net/ Adjacent changes: drivers/net/bonding/bond_alb.c e74216b8def3 ("bonding: fix macvlan over alb bond support") f11e5bd159b0 ("bonding: support balance-alb with openvswitch") drivers/net/ethernet/broadcom/bgmac.c d6499f0b7c7c ("net: bgmac: Return PTR_ERR() for fixed_phy_register()") 23a14488ea58 ("net: bgmac: Fix return value check for fixed_phy_register()") drivers/net/ethernet/broadcom/genet/bcmmii.c 32bbe64a1386 ("net: bcmgenet: Fix return value check for fixed_phy_register()") acf50d1adbf4 ("net: bcmgenet: Return PTR_ERR() for fixed_phy_register()") net/sctp/socket.c f866fbc842de ("ipv4: fix data-races around inet->inet_id") b09bde5c3554 ("inet: move inet->mc_loop to inet->inet_frags") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-24perf scripts python gecko: Launch the profiler UI on the default browser ↵Anup Sharma
with the appropriate URL All required libraries have been imported and make sure that none of them are external dependencies. To achieve this, created a virt env and verified. Modified usage information and added combined command. Modified the main() function to read the --save-only command-line option and set the output_file variable accordingly. Modified the trace_end() function to check for the output_file variable. If it is set, the profiler data is saved to a local file in Gecko Profile format, or the profiler.firefox.com is opened on the default browser. Included trace_begin() to initialize the Firefox Profiler and launch the default browser to display the profiler.firefox.com. Added a new function launchFirefox() to start a local server and launch the profiler UI on the default browser with the appropriate URL. Created the "CORSRequestHandler" class to enable Cross-Origin Resource Sharing. Summary: This integration now includes a exiting feature to conveniently host the Gecko Profile data on a local server and open it directly in the default web browser. This means that users can now effortlessly visualize and analyze the profiler results with just a single click. The addition of the --save-only command-line option allows users to save the profiler output to a local file in Gecko Profile format, but the real highlight lies in the capability to seamlessly launch a local server, making the data accessible to Firefox Profiler via a web browser. In addition, it's important to highlight that all data are hosted locally, eliminating any concerns about data privacy rules and regulations. Signed-off-by: Anup Sharma <anupnewsmail@gmail.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/ZNOS0vo58DnVLpD8@yoga Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf scripts python: Add support for input args in gecko scriptAnup Sharma
Refines the argument handling mechanism in the "gecko-report" script to enable better compatibility and improved user experience. The script now differentiates between scenarios where arguments are provided for record and report cases where gecko.py arguments are passed. Signed-off-by: Anup Sharma <anupnewsmail@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/ZNf7W+EIrrCSHZN0@yoga Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24selftests/bpf: Enable cpu v4 tests for RV64Pu Lehui
Enable cpu v4 tests for RV64, and the relevant tests have passed. Signed-off-by: Pu Lehui <pulehui@huawei.com> Acked-by: Yonghong Song <yonghong.song@linux.dev> Acked-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/r/20230824095001.3408573-8-pulehui@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-24Merge tag 'net-6.5-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from wifi, can and netfilter. Fixes to fixes: - nf_tables: - GC transaction race with abort path - defer gc run if previous batch is still pending Previous releases - regressions: - ipv4: fix data-races around inet->inet_id - phy: fix deadlocking in phy_error() invocation - mdio: fix C45 read/write protocol - ipvlan: fix a reference count leak warning in ipvlan_ns_exit() - ice: fix NULL pointer deref during VF reset - i40e: fix potential NULL pointer dereferencing of pf->vf in i40e_sync_vsi_filters() - tg3: use slab_build_skb() when needed - mtk_eth_soc: fix NULL pointer on hw reset Previous releases - always broken: - core: validate veth and vxcan peer ifindexes - sched: fix a qdisc modification with ambiguous command request - devlink: add missing unregister linecard notification - wifi: mac80211: limit reorder_buf_filtered to avoid UBSAN warning - batman: - do not get eth header before batadv_check_management_packet - fix batadv_v_ogm_aggr_send memory leak - bonding: fix macvlan over alb bond support - mlxsw: set time stamp fields also when its type is MIRROR_UTC" * tag 'net-6.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits) selftests: bonding: add macvlan over bond testing selftest: bond: add new topo bond_topo_2d1c.sh bonding: fix macvlan over alb bond support rtnetlink: Reject negative ifindexes in RTM_NEWLINK netfilter: nf_tables: defer gc run if previous batch is still pending netfilter: nf_tables: fix out of memory error handling netfilter: nf_tables: use correct lock to protect gc_list netfilter: nf_tables: GC transaction race with abort path netfilter: nf_tables: flush pending destroy work before netlink notifier netfilter: nf_tables: validate all pending tables ibmveth: Use dcbf rather than dcbfl i40e: fix potential NULL pointer dereferencing of pf->vf i40e_sync_vsi_filters() net/sched: fix a qdisc modification with ambiguous command request igc: Fix the typo in the PTM Control macro batman-adv: Hold rtnl lock during MTU update via netlink igb: Avoid starting unnecessary workqueues can: raw: add missing refcount for memory leak fix can: isotp: fix support for transmission of SF without flow control bnx2x: new flag for track HW resource allocation sfc: allocate a big enough SKB for loopback selftest packet ...
2023-08-24selftests/bpf: Add a local kptr test with no special fieldsYonghong Song
Add a local kptr test with no special fields in the struct. Without the previous patch, the following warning will hit: [ 44.683877] WARNING: CPU: 3 PID: 485 at kernel/bpf/syscall.c:660 bpf_obj_free_fields+0x220/0x240 [ 44.684640] Modules linked in: bpf_testmod(OE) [ 44.685044] CPU: 3 PID: 485 Comm: kworker/u8:5 Tainted: G OE 6.5.0-rc5-01703-g260d855e9b90 #248 [ 44.685827] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 44.686693] Workqueue: events_unbound bpf_map_free_deferred [ 44.687297] RIP: 0010:bpf_obj_free_fields+0x220/0x240 [ 44.687775] Code: e8 55 17 1f 00 49 8b 74 24 08 4c 89 ef e8 e8 14 05 00 e8 a3 da e2 ff e9 55 fe ff ff 0f 0b e9 4e fe ff ff 0f 0b e9 47 fe ff ff <0f> 0b e8 d9 d9 e2 ff 31 f6 eb d5 48 83 c4 10 5b 41 5c e [ 44.689353] RSP: 0018:ffff888106467cb8 EFLAGS: 00010246 [ 44.689806] RAX: 0000000000000000 RBX: ffff888112b3a200 RCX: 0000000000000001 [ 44.690433] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff8881128ad988 [ 44.691094] RBP: 0000000000000002 R08: ffffffff81370bd0 R09: 1ffff110216231a5 [ 44.691643] R10: dffffc0000000000 R11: ffffed10216231a6 R12: ffff88810d68a488 [ 44.692245] R13: ffff88810767c288 R14: ffff88810d68a400 R15: ffff88810d68a418 [ 44.692829] FS: 0000000000000000(0000) GS:ffff8881f7580000(0000) knlGS:0000000000000000 [ 44.693484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.693964] CR2: 000055c7f2afce28 CR3: 000000010fee4002 CR4: 0000000000370ee0 [ 44.694513] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.695102] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.695747] Call Trace: [ 44.696001] <TASK> [ 44.696183] ? __warn+0xfe/0x270 [ 44.696447] ? bpf_obj_free_fields+0x220/0x240 [ 44.696817] ? report_bug+0x220/0x2d0 [ 44.697180] ? handle_bug+0x3d/0x70 [ 44.697507] ? exc_invalid_op+0x1a/0x50 [ 44.697887] ? asm_exc_invalid_op+0x1a/0x20 [ 44.698282] ? btf_find_struct_meta+0xd0/0xd0 [ 44.698634] ? bpf_obj_free_fields+0x220/0x240 [ 44.699027] ? bpf_obj_free_fields+0x1e2/0x240 [ 44.699414] array_map_free+0x1a3/0x260 [ 44.699763] bpf_map_free_deferred+0x7b/0xe0 [ 44.700154] process_one_work+0x46d/0x750 [ 44.700523] worker_thread+0x49e/0x900 [ 44.700892] ? pr_cont_work+0x270/0x270 [ 44.701224] kthread+0x1ae/0x1d0 [ 44.701516] ? kthread_blkcg+0x50/0x50 [ 44.701860] ret_from_fork+0x34/0x50 [ 44.702178] ? kthread_blkcg+0x50/0x50 [ 44.702508] ret_from_fork_asm+0x11/0x20 [ 44.702880] </TASK> With the previous patch, there is no warnings. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230824063422.203097-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-24selftests: add OFD lock testsStas Sergeev
Test the basic locking stuff on 2 fds: multiple read locks, conflicts between read and write locks, use of len==0 for queries. Also tests for F_UNLCK F_OFD_GETLK extension. [ jlayton: fix unlink() pathname in selftest ] Cc: Jeff Layton <jlayton@kernel.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Shuah Khan <shuah@kernel.org> Cc: linux-kselftest@vger.kernel.org Cc: linux-api@vger.kernel.org Signed-off-by: Stas Sergeev <stsp2@yandex.ru> Signed-off-by: Jeff Layton <jlayton@kernel.org>
2023-08-24perf jevents: Sort strings in the big C string to reduce faultsIan Rogers
Sort the strings within the big C string based on whether they were for a metric and then by when they were added. This helps group related strings and reduce minor faults by approximately 10 in 1740, about 0.57%. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-18-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Lazily load sysfs aliasesIan Rogers
Don't load sysfs aliases for a PMU when the PMU is first created, defer until an alias needs to be found. For the pmu-scan benchmark, average core PMU scanning is reduced by 30.8%, and average PMU scanning by 12.6%. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-17-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Be lazy about loading event info files from sysfsIan Rogers
Event info is only needed when an event is parsed or when merging data from an JSON and sysfs event. Be lazy in its loading to reduce file accesses. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-16-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Scan type early to fail an invalid PMU quicklyIan Rogers
Scan sysfs PMU's type early so that format and aliases aren't attempted to be loaded if the PMU name is invalid. This is the case for event_pmu tokens in parse-events.y where a wildcard name is first assumed to be a PMU name. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Lazily add JSON eventsIan Rogers
Rather than scanning all JSON events and adding them when a PMU is created, add the alias when the JSON event is needed. Average core PMU scanning run time reduced by 60.2%. Average PMU scanning run time reduced by 15%. Page faults with no events reduced by 74 page faults, 4% of total. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-14-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Cache JSON events tableIan Rogers
Cache the JSON events table so that finding it isn't done per event/alias. Change the events table find so that when the PMU is given, if the PMU has no JSON events return null. Update usage to always use the PMU variable. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-13-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Merge JSON events with sysfs at load timeIan Rogers
Rather than load all sysfs events then parsing all JSON events and merging with ones that already exist. When a sysfs event is loaded, look for a corresponding JSON event and merge immediately. To simplify the logic, early exit the perf_pmu__new_alias function if an alias is attempted to be added twice - as merging has already been explicitly handled. Fix the copying of terms to a merged alias and some ENOMEM paths. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-12-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Prefer passing pmu to aliases listIan Rogers
The aliases list is part of the PMU. Rather than pass the aliases list, pass the full PMU simplifying some callbacks. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-11-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Parse sysfs events directly from a fileIan Rogers
Rather than read a sysfs events file into a 256 byte char buffer, pass the FILE* directly to the lex/yacc parser. This avoids there being a maximum events file size. While changing the API, constify some arguments to remove unnecessary casts. Allocating the read buffer decreases the performance of pmu-scan by around 3%. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-10-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu-events: Add pmu_events_table__find_event()Ian Rogers
jevents stores events sorted by name. Add a find function that will binary search event names avoiding the need to linearly search through events. Add a test in tests/pmu-events.c. If the PMU or event aren't found -1000 is returned. If the event is found but no callback function given, 0 is returned. This allows the find function also act as a test for existence. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-9-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu-events: Reduce processed events by passing PMUIan Rogers
Pass the PMU to pmu_events_table__for_each_event so that entries that don't match don't need to be processed by callback. If a NULL PMU is passed then all PMUs are processed. 'perf bench internals pmu-scan's "Average PMU scanning" performance is reduced by about 5% on an Intel tigerlake. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-8-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf s390 s390_cpumcfdg_dump: Don't scan all PMUsIan Rogers
Rather than scanning all PMUs for a counter name, scan the PMU associated with the evsel of the sample. This is done to remove a dependence on pmu-events.h. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf parse-events: Improve error message for double settingIan Rogers
Double setting information for an event would produce an error message associated with the PMU rather than the term that was double setting. Improve the error message to be on the term. Before: $ perf stat -e 'cpu/inst_retired.any,inst_retired.any/' true event syntax error: 'cpu/inst_retired.any,inst_retired.any/' \___ Bad event or PMU Unabled to find PMU or event on a PMU of 'cpu' Run 'perf list' for a list of valid events $ After: $ perf stat -e 'cpu/inst_retired.any,inst_retired.any/' true event syntax error: '..etired.any,inst_retired.any/' \___ Bad event or PMU Unabled to find PMU or event on a PMU of 'cpu' Initial error: event syntax error: '..etired.any,inst_retired.any/' \___ Attempt to set event's scale twice Run 'perf list' for a list of valid events Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf jevents: Group events by PMUIan Rogers
Prior to this change a cpuid would map to a list of events where the PMU would be encoded alongside the event information. This change breaks apart each group of events so that there is a group per PMU. A new table is added with the PMU's name and the list of events, the original table now holding an array of these per PMU tables. These changes are to make it easier to get per PMU information about events, rather than the current approach of scanning all events. The perf binary size with BPF skeletons on x86 is reduced by about 1%. The unidentified PMU is now always expanded to "cpu". Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu-events: Add extra underscore to function namesIan Rogers
Add extra underscore before "for" of pmu_events_table_for_each_event and pmu_metrics_table_for_each_metric. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Abstract alias/event structIan Rogers
In order to be able to lazily compute aliases/events for a PMU, move the struct perf_pmu_alias into pmu.c. Add perf_pmu__find_event and perf_pmu__for_each_event that take a callback that is called for the found event or for each event. The layout of struct pmu and the event/alias list is unchanged but the API is altered so that aliases are no longer directly accessed, allowing for later changes. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24perf pmu: Make the loading of formats lazyIan Rogers
The sysfs format files are loaded eagerly in a PMU. Add a flag so that we create the format but only load the contents when necessary. Reduce the size of the value in struct perf_pmu_format and avoid holes so there is no additional space requirement. For "perf stat -e cycles true" this reduces the number of openat calls from 648 to 573 (about 12%). The benchmark pmu scan speed is improved by roughly 5%. Before: $ perf bench internals pmu-scan Computing performance of sysfs PMU event scan for 100 times Average core PMU scanning took: 1061.100 usec (+- 9.965 usec) Average PMU scanning took: 4725.300 usec (+- 260.599 usec) After: $ perf bench internals pmu-scan Computing performance of sysfs PMU event scan for 100 times Average core PMU scanning took: 989.170 usec (+- 6.873 usec) Average PMU scanning took: 4520.960 usec (+- 251.272 usec) Committer testing: On a AMD Ryzen 5950x: Before: $ perf bench internals pmu-scan -i1000 # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 563.466 usec (+- 1.008 usec) Average PMU scanning took: 1619.174 usec (+- 23.627 usec) $ perf stat -r5 perf bench internals pmu-scan -i1000 # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 583.401 usec (+- 2.098 usec) Average PMU scanning took: 1677.352 usec (+- 24.636 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 553.254 usec (+- 0.825 usec) Average PMU scanning took: 1635.655 usec (+- 24.312 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 557.733 usec (+- 0.980 usec) Average PMU scanning took: 1600.659 usec (+- 23.344 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 554.906 usec (+- 0.774 usec) Average PMU scanning took: 1595.338 usec (+- 23.288 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 551.798 usec (+- 0.967 usec) Average PMU scanning took: 1623.213 usec (+- 23.998 usec) Performance counter stats for 'perf bench internals pmu-scan -i1000' (5 runs): 3276.82 msec task-clock:u # 0.990 CPUs utilized ( +- 0.82% ) 0 context-switches:u # 0.000 /sec 0 cpu-migrations:u # 0.000 /sec 1008 page-faults:u # 307.615 /sec ( +- 0.04% ) 12049614778 cycles:u # 3.677 GHz ( +- 0.07% ) (83.34%) 117507478 stalled-cycles-frontend:u # 0.98% frontend cycles idle ( +- 0.33% ) (83.32%) 27106761 stalled-cycles-backend:u # 0.22% backend cycles idle ( +- 9.55% ) (83.36%) 33294953848 instructions:u # 2.76 insn per cycle # 0.00 stalled cycles per insn ( +- 0.03% ) (83.31%) 6849825049 branches:u # 2.090 G/sec ( +- 0.03% ) (83.37%) 71533903 branch-misses:u # 1.04% of all branches ( +- 0.20% ) (83.30%) 3.3088 +- 0.0302 seconds time elapsed ( +- 0.91% ) $ After: $ perf stat -r5 perf bench internals pmu-scan -i1000 # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 550.702 usec (+- 0.958 usec) Average PMU scanning took: 1566.577 usec (+- 22.747 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 548.315 usec (+- 0.555 usec) Average PMU scanning took: 1565.499 usec (+- 22.760 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 548.073 usec (+- 0.555 usec) Average PMU scanning took: 1586.097 usec (+- 23.299 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 561.184 usec (+- 2.709 usec) Average PMU scanning took: 1567.153 usec (+- 22.548 usec) # Running 'internals/pmu-scan' benchmark: Computing performance of sysfs PMU event scan for 1000 times Average core PMU scanning took: 546.987 usec (+- 0.553 usec) Average PMU scanning took: 1562.814 usec (+- 22.729 usec) Performance counter stats for 'perf bench internals pmu-scan -i1000' (5 runs): 3170.86 msec task-clock:u # 0.992 CPUs utilized ( +- 0.22% ) 0 context-switches:u # 0.000 /sec 0 cpu-migrations:u # 0.000 /sec 1010 page-faults:u # 318.526 /sec ( +- 0.04% ) 11890047674 cycles:u # 3.750 GHz ( +- 0.14% ) (83.27%) 119090499 stalled-cycles-frontend:u # 1.00% frontend cycles idle ( +- 0.46% ) (83.40%) 32502449 stalled-cycles-backend:u # 0.27% backend cycles idle ( +- 8.32% ) (83.30%) 33119141261 instructions:u # 2.79 insn per cycle # 0.00 stalled cycles per insn ( +- 0.01% ) (83.37%) 6812816561 branches:u # 2.149 G/sec ( +- 0.01% ) (83.29%) 70157855 branch-misses:u # 1.03% of all branches ( +- 0.28% ) (83.38%) 3.19710 +- 0.00826 seconds time elapsed ( +- 0.26% ) $ Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230824041330.266337-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24powerpc/pseries: Move VPHN constants into vphn.hMichael Ellerman
These don't have any particularly good reason to belong in lppaca.h, move them into their own header. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230823055317.751786-1-mpe@ellerman.id.au
2023-08-24selftests: bonding: add macvlan over bond testingHangbin Liu
Add a macvlan over bonding test with mode active-backup, balance-tlb and balance-alb. ]# ./bond_macvlan.sh TEST: active-backup: IPv4: client->server [ OK ] TEST: active-backup: IPv6: client->server [ OK ] TEST: active-backup: IPv4: client->macvlan_1 [ OK ] TEST: active-backup: IPv6: client->macvlan_1 [ OK ] TEST: active-backup: IPv4: client->macvlan_2 [ OK ] TEST: active-backup: IPv6: client->macvlan_2 [ OK ] TEST: active-backup: IPv4: macvlan_1->macvlan_2 [ OK ] TEST: active-backup: IPv6: macvlan_1->macvlan_2 [ OK ] TEST: active-backup: IPv4: server->client [ OK ] TEST: active-backup: IPv6: server->client [ OK ] TEST: active-backup: IPv4: macvlan_1->client [ OK ] TEST: active-backup: IPv6: macvlan_1->client [ OK ] TEST: active-backup: IPv4: macvlan_2->client [ OK ] TEST: active-backup: IPv6: macvlan_2->client [ OK ] TEST: active-backup: IPv4: macvlan_2->macvlan_2 [ OK ] TEST: active-backup: IPv6: macvlan_2->macvlan_2 [ OK ] [...] TEST: balance-alb: IPv4: client->server [ OK ] TEST: balance-alb: IPv6: client->server [ OK ] TEST: balance-alb: IPv4: client->macvlan_1 [ OK ] TEST: balance-alb: IPv6: client->macvlan_1 [ OK ] TEST: balance-alb: IPv4: client->macvlan_2 [ OK ] TEST: balance-alb: IPv6: client->macvlan_2 [ OK ] TEST: balance-alb: IPv4: macvlan_1->macvlan_2 [ OK ] TEST: balance-alb: IPv6: macvlan_1->macvlan_2 [ OK ] TEST: balance-alb: IPv4: server->client [ OK ] TEST: balance-alb: IPv6: server->client [ OK ] TEST: balance-alb: IPv4: macvlan_1->client [ OK ] TEST: balance-alb: IPv6: macvlan_1->client [ OK ] TEST: balance-alb: IPv4: macvlan_2->client [ OK ] TEST: balance-alb: IPv6: macvlan_2->client [ OK ] TEST: balance-alb: IPv4: macvlan_2->macvlan_2 [ OK ] TEST: balance-alb: IPv6: macvlan_2->macvlan_2 [ OK ] Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-24selftest: bond: add new topo bond_topo_2d1c.shHangbin Liu
Add a new testing topo bond_topo_2d1c.sh which is used more commonly. Make bond_topo_3d1c.sh just source bond_topo_2d1c.sh and add the extra link. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-24Merge branch 'for-linus' into for-nextTakashi Iwai
Back-merge the 6.5-devel branch for the clean patch application for 6.6 and resolving merge conflicts. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-23libbpf: fix signedness determination in CO-RE relo handling logicAndrii Nakryiko
Extracting btf_int_encoding() is only meaningful for BTF_KIND_INT, so we need to check that first before inferring signedness. Closes: https://github.com/libbpf/libbpf/issues/704 Reported-by: Lorenz Bauer <lmb@isovalent.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230824000016.2658017-2-andrii@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-08-23selftests/bpf: add uprobe_multi test binary to .gitignoreAndrii Nakryiko
It seems like it was forgotten to add uprobe_multi binary to .gitignore. Fix this trivial omission. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230824000016.2658017-1-andrii@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-08-23libbpf: Add bpf_object__unpin()Daniel Xu
For bpf_object__pin_programs() there is bpf_object__unpin_programs(). Likewise bpf_object__unpin_maps() for bpf_object__pin_maps(). But no bpf_object__unpin() for bpf_object__pin(). Adding the former adds symmetry to the API. It's also convenient for cleanup in application code. It's an API I would've used if it was available for a repro I was writing earlier. Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/bpf/b2f9d41da4a350281a0b53a804d11b68327e14e5.1692832478.git.dxu@dxuuu.xyz
2023-08-23RISC-V: mm: Add tests for RISC-V mmCharlie Jenkins
Add tests that enforce mmap hint address behavior. mmap should default to sv48. mmap will provide an address at the highest address space that can fit into the hint address, unless the hint address is less than sv39 and not 0, then it will return a sv39 address. These tests are split into two files: mmap_default.c and mmap_bottomup.c because a new process must be exec'd in order to change the mmap layout. The run_mmap.sh script sets the stack to be unlimited for the mmap_bottomup.c test which triggers a bottomup layout. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Link: https://lore.kernel.org/r/20230809232218.849726-3-charlie@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-23perf build: Allow customization of clang options for BPF targetGuilherme Amadio
This also puts an unconditional -Werror under control of WERROR. The clang includes added during the build can lead to a warning that may be turned into an error. In addition, hardened clang produces a warning about lack of support for -fstack-protector* options for the BPF target: clang -g -O2 -target bpf -Wall -Werror -Ilinux/tools/perf/util/bpf_skel/.tmp/.. \ -I -idirafter /usr/lib/llvm/16/bin/../../../../lib/clang/16/include -idirafter /usr/local/include \ -idirafter /usr/include -Ilinux/tools/include/uapi -c util/bpf_skel/bperf_follower.bpf.c \ -o linux/tools/perf/util/bpf_skel/.tmp/bperf_follower.bpf.o && llvm-strip -g linux/tools/perf/util/bpf_skel/.tmp/bperf_follower.bpf.o clang-16: error: /usr/lib/llvm/16/bin/../../../../lib/clang/16/include: 'linker' input unused [-Werror,-Wunused-command-line-argument] clang-16: error: ignoring '-fstack-protector-strong' option as it is not currently supported for target 'bpf' [-Werror,-Woption-ignored] make[1]: *** [Makefile.perf:1082: linux/tools/perf/util/bpf_skel/.tmp/bpf_prog_profiler.bpf.o] Error 1 Signed-off-by: Guilherme Amadio <amadio@gentoo.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/lkml/ZOZQ2LDA+3Wg8x2T@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-23perf pmu: Pass PMU rather than aliases and formatIan Rogers
Pass the pmu so the aliases and format list can be better abstracted and later lazily loaded. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230823080828.1460376-9-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-23perf pmu: Avoid passing format list to perf_pmu__format_bits()Ian Rogers
Pass the PMU so the format list can be better abstracted and later lazily loaded. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230823080828.1460376-8-irogers@google.com [ Did missing conversions in tools/perf/arch/arm*/util/cs-etm.c ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-23selftests/bpf: Add selftest for allow_ptr_leaksYafang Shao
- Without prev commit $ tools/testing/selftests/bpf/test_progs --name=tc_bpf #232/1 tc_bpf/tc_bpf_root:OK test_tc_bpf_non_root:PASS:set_cap_bpf_cap_net_admin 0 nsec test_tc_bpf_non_root:PASS:disable_cap_sys_admin 0 nsec 0: R1=ctx(off=0,imm=0) R10=fp0 ; if ((long)(iph + 1) > (long)skb->data_end) 0: (61) r2 = *(u32 *)(r1 +80) ; R1=ctx(off=0,imm=0) R2_w=pkt_end(off=0,imm=0) ; struct iphdr *iph = (void *)(long)skb->data + sizeof(struct ethhdr); 1: (61) r1 = *(u32 *)(r1 +76) ; R1_w=pkt(off=0,r=0,imm=0) ; if ((long)(iph + 1) > (long)skb->data_end) 2: (07) r1 += 34 ; R1_w=pkt(off=34,r=0,imm=0) 3: (b4) w0 = 1 ; R0_w=1 4: (2d) if r1 > r2 goto pc+1 R2 pointer comparison prohibited processed 5 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 test_tc_bpf_non_root:FAIL:test_tc_bpf__open_and_load unexpected error: -13 #233/2 tc_bpf_non_root:FAIL - With prev commit $ tools/testing/selftests/bpf/test_progs --name=tc_bpf #232/1 tc_bpf/tc_bpf_root:OK #232/2 tc_bpf/tc_bpf_non_root:OK #232 tc_bpf:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Link: https://lore.kernel.org/r/20230823020703.3790-3-laoar.shao@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-23perf pmu: Avoid passing format list to perf_pmu__format_typeIan Rogers
Pass the pmu so the format list can be better abstracted and later lazily loaded. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230823080828.1460376-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-23perf pmu: Avoid passing format list to perf_pmu__config_terms()Ian Rogers
Abstract the format list better, hiding it in the PMU, by changing perf_pmu__config_terms() the PMU rather than the format list in the PMU. Change the PMU test to pass a dummy PMU for this purpose. Changing the test allows perf_pmu__del_formats() to become static. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230823080828.1460376-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-23perf pmu: Reduce scope of perf_pmu_error()Ian Rogers
Move declaration from header file to pmu.y and make static. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gaosheng Cui <cuigaosheng1@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230823080828.1460376-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-29 16:41:49 +0000