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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
