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Groups > linux.kernel > #1609449
| From | Minchan Kim <minchan@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 5/7] zram: Convert to using memset_l |
| Date | 2017-03-27 07:10 +0200 |
| Message-ID | <tpv4J-2RJ-3@gated-at.bofh.it> (permalink) |
| References | <toA6t-48t-3@gated-at.bofh.it> <toA6u-48t-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[PATCH v3 0/7] Add memsetN functions Matthew Wilcox <willy@infradead.org> - 2017-03-24 17:20 +0100
[PATCH v3 1/7] Add multibyte memset functions Matthew Wilcox <willy@infradead.org> - 2017-03-24 17:20 +0100
[PATCH v3 5/7] zram: Convert to using memset_l Matthew Wilcox <willy@infradead.org> - 2017-03-24 17:20 +0100
Re: [PATCH v3 5/7] zram: Convert to using memset_l Minchan Kim <minchan@kernel.org> - 2017-03-27 07:10 +0200
[PATCH v3 4/7] alpha: Add support for memset16 Matthew Wilcox <willy@infradead.org> - 2017-03-24 17:20 +0100
[PATCH v3 2/7] ARM: Implement memset16, memset32 & memset64 Matthew Wilcox <willy@infradead.org> - 2017-03-24 17:20 +0100
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