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authorAndi Kleen <ak@linux.intel.com>2013-07-02 08:49:30 -0700
committerAndi Kleen <ak@linux.intel.com>2013-07-02 08:49:30 -0700
commita7cb9d67a531cdb6f6b6d633a7beb47211341076 (patch)
treeee6d510e0bcf2af2e49aa8d3c8ac5972d427b68f /NEWS
parent1717da59aed9612becd56aaa1249aac695af4c8a (diff)
Add lock elision to NEWS file
Diffstat (limited to 'NEWS')
-rw-r--r--NEWS6
1 files changed, 6 insertions, 0 deletions
diff --git a/NEWS b/NEWS
index 9d37d1008c..56ce7ef147 100644
--- a/NEWS
+++ b/NEWS
@@ -65,6 +65,12 @@ Version 2.18
* Added new API functions pthread_getattr_default_np and
pthread_setattr_default_np to get and set the default pthread
attributes of a process.
+
+* Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
+ This may improve lock scaling of existing programs on TSX capable systems.
+ When the --enable-lock-elision=yes parameter is specified at configure
+ time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
+ mutexes.
Version 2.17