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Re: TSX lock elision for glibc v8
- From: Andreas Jaeger <aj at suse dot com>
- To: libc-alpha at sourceware dot org
- Date: Fri, 17 May 2013 09:24:52 +0200
- Subject: Re: TSX lock elision for glibc v8
- References: <1368756775-23245-1-git-send-email-andi at firstfloor dot org>
On 05/17/2013 04:12 AM, Andi Kleen wrote:
Feedback addressed I believe.
Proposed NEWS entry:
* Added support for TSX lock elision for pthread mutexes and rwlock.
This allows to improve lock scaling of existing programs.
By default this is not enabled, unless the user forces it with
environment variables or by setting an explicit lock type.
When the --enable-lock-elision parameter is specified at configure
time lock elision will be enabled by default.
See the manual for more details.
I suggest to mention that this is implemented for x86/x86-64/x32 only,
Andreas
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