Messages in this thread | | | Date | Mon, 27 Mar 2017 14:01:34 +0900 | From | Minchan Kim <> | Subject | Re: [PATCH v3 5/7] zram: Convert to using memset_l |
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On Fri, Mar 24, 2017 at 09:13:16AM -0700, Matthew Wilcox wrote: > From: Matthew Wilcox <mawilcox@microsoft.com> > > zram was the motivation for creating memset_l(). Minchan Kim sees a 7% > performance improvement on x86 with 100MB of non-zero deduplicatable > data: > > perf stat -r 10 dd if=/dev/zram0 of=/dev/null > > vanilla: 0.232050465 seconds time elapsed ( +- 0.51% ) > memset_l: 0.217219387 seconds time elapsed ( +- 0.07% ) > > Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> > Tested-by: Minchan Kim <minchan@kernel.org> Acked-by: Minchan Kim <minchan@kernel.org>
Thanks!
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