On Fri, Sep 14, 2018 at 04:50:20PM +0200, Jirka Hladky wrote: > Hi Peter and Srikar, > > > I have bounced the 5 patches to you, (one of the 6 has not been applied by > > Peter) so I have skipped that. > > They can also be fetched from > > http://lore.kernel.org/lkml/1533276841-16341-1-git-send-email-sri...@linux.vnet.ibm.com > > I'm sorry for the delay, we have finally the results for the above > kernel. The performance results look good compared to 4.19 vanilla and > are about the same as Mel's sched-numa-fast-crossnode-v1r12 patch set > for 4.18: > > Compared to kernel-4.19.0-0.rc1.1 > > * Improvement upto 20% for SPECjbb2005, SPECjvm2008 benchmarks > * Improvement upto 50% for stream benchmark > * Improvement upto 100% for the NAS benchmark (sp_C subtest, 8 > threads on 4 NUMA system with 4x E5-4610 v2 @ 2.30GHz, 64 cores in > total) > > When I compare it against Mel's patchset > (git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git > sched-numa-fast-crossnode-v1r12) > > * Mel's kernel is about 15% faster for stream benchmarks > * The other benchmarks show very similar results with both kernels > > Mel's patchset eliminates NUMA migration rate limits, this is > presumbly the reason for the good stream results. > > Do you have any update when the current patchset could be merged into > the upstream kernel? >
I'm travelling at the moment but when I get back, I'll see what's in the tip tree with respect to Srikar's patches and then rebase the fast-migration patches on top and reconfirm they still behave as expected. Assuming they do, I'll resend them.
