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Groups > linux.kernel > #1695718
| From | Matthew Wilcox <willy@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v4 0/8] Multibyte memset variations |
| Date | 2017-07-25 15:10 +0200 |
| Message-ID | <u77L4-3dw-11@gated-at.bofh.it> (permalink) |
| References | <u5oGl-2GI-3@gated-at.bofh.it> <u70zT-78Y-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, Jul 25, 2017 at 03:27:38PM +1000, Michael Ellerman wrote: > Matthew Wilcox <willy@infradead.org> writes: > > > From: Matthew Wilcox <mawilcox@microsoft.com> > > > > A relatively common idiom we're missing is a function to fill an area > > of memory with a pattern which is larger than a single byte. I first > > noticed this with a zram patch which wanted to fill a page with an > > 'unsigned long' value. There turn out to be quite a few places in > > the kernel which can benefit from using an optimised function rather > > than a loop; sometimes text size, sometimes speed, and sometimes both. > > The optimised PowerPC version (not included here) improves performance > > by about 30% on POWER8 on just the raw memset_l(). > > Is the plan that Andrew will merge this series, or are you planning to > put them in a tree of yours? I'm hoping Andrew will take it, but I can put it in my own tree if he doesn't want to take it.
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[PATCH v4 0/8] Multibyte memset variations Matthew Wilcox <willy@infradead.org> - 2017-07-20 20:50 +0200
[PATCH v4 6/8] zram: Convert to using memset_l Matthew Wilcox <willy@infradead.org> - 2017-07-20 20:50 +0200
Re: [PATCH v4 0/8] Multibyte memset variations Michael Ellerman <mpe@ellerman.id.au> - 2017-07-25 07:30 +0200
Re: [PATCH v4 0/8] Multibyte memset variations Matthew Wilcox <willy@infradead.org> - 2017-07-25 15:10 +0200
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