This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [PATCH] benchtests/Makefile: Run the string benchmarks four times by default.
- From: Will Newton <will dot newton at linaro dot org>
- To: Ondřej Bílka <neleai at seznam dot cz>
- Cc: libc-alpha <libc-alpha at sourceware dot org>, Patch Tracking <patches at linaro dot org>
- Date: Wed, 4 Sep 2013 17:20:23 +0100
- Subject: Re: [PATCH] benchtests/Makefile: Run the string benchmarks four times by default.
- Authentication-results: sourceware.org; auth=none
- References: <52274838 dot 7010902 at linaro dot org> <20130904161743 dot GA10358 at domone dot kolej dot mff dot cuni dot cz>
On 4 September 2013 17:17, OndÅej BÃlka <neleai@seznam.cz> wrote:
> On Wed, Sep 04, 2013 at 03:48:24PM +0100, Will Newton wrote:
>>
>> The string benchmarks can be affected by physical page placement, so
>> running them multiple times is required to account for this. Also
>> backup the results of the previous run like is done for the other
>> benchmarks.
>>
> You do not need to do this. We should instead randomize addresses used
> which handles this problem.
That seems like it would be considerably more complicated. Do you have
a reason why your approach is better?
--
Will Newton
Toolchain Working Group, Linaro