Messages in this thread | | | Date | Thu, 04 Jul 2013 00:01:43 +0800 | From | Zhang Yanfei <> | Subject | Re: [RFC PATCH 0/5] Support multiple pages allocation |
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On 07/03/2013 11:51 PM, Zhang Yanfei wrote: > On 07/03/2013 11:28 PM, Michal Hocko wrote: >> On Wed 03-07-13 17:34:15, Joonsoo Kim wrote: >> [...] >>> For one page allocation at once, this patchset makes allocator slower than >>> before (-5%). >> >> Slowing down the most used path is a no-go. Where does this slow down >> come from? > > I guess, it might be: for one page allocation at once, comparing to the original > code, this patch adds two parameters nr_pages and pages and will do extra checks > for the parameter nr_pages in the allocation path. >
If so, adding a separate path for the multiple allocations seems better.
>> >> [...] > >
-- Thanks. Zhang Yanfei
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