Messages in this thread | | | Date | Tue, 25 Jul 2017 06:08:18 -0700 | From | Matthew Wilcox <> | Subject | Re: [PATCH v4 0/8] Multibyte memset variations |
| |
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.
| |