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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2024-12-27 14:01:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-22 14:29:37 +0200 |
| commit | 651eaaae6baaa739ee234120ed2fc6fc720f81f5 (patch) | |
| tree | 84ee2b68fb4d6d4e25c36472d2dd2e85427828c2 /net/lapb/lapb_timer.c | |
| parent | 5d9d62323e1893e6f429fad7da19a652088cac21 (diff) | |
xhci: dbc: Improve performance by removing delay in transfer event polling.
[ Upstream commit 03e3d9c2bd85cda941b3cf78e895c1498ac05c5f ]
Queue event polling work with 0 delay in case there are pending transfers
queued up. This is part 2 of a 3 part series that roughly triples dbc
performace when using adb push and pull over dbc.
Max/min push rate after patches is 210/118 MB/s, pull rate 171/133 MB/s,
tested with large files (300MB-9GB) by Łukasz Bartosik
First performance improvement patch was commit 31128e7492dc
("xhci: dbc: add dbgtty request to end of list once it completes")
Cc: Łukasz Bartosik <ukaszb@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20241227120142.1035206-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: cab63934c33b ("xhci: dbc: Avoid event polling busyloop if pending rx transfers are inactive.")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions