On Fri, 2017-05-12 at 03:58:10 UTC, Andrew Jeffery wrote: > Experiments with the netperf benchmark indicated that the size selecting > VMX-based copies in __copy_tofrom_user_power7() was suboptimal on POWER8. > Measurements showed that parity was in the neighbourhood of 3328 bytes, > rather than greater than 4096. The change gives a 1.5-2.0% improvement in > performance for 4096-byte buffers, reducing the relative time spent in > __copy_tofrom_user_power7() from approximately 7% to approximately 5% in > the TCP_RR benchmark. > > Signed-off-by: Andrew Jeffery <and...@aj.id.au> > Acked-by: Anton Blanchard <an...@samba.org>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/a3f952df3c6d205fe3b1e0e4848d3c cheers
