From a7cb9d67a531cdb6f6b6d633a7beb47211341076 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 2 Jul 2013 08:49:30 -0700 Subject: [PATCH] Add lock elision to NEWS file --- NEWS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/NEWS b/NEWS index 9d37d10..56ce7ef 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 -- 2.7.4