* David Rientjes <rient...@google.com> wrote:
> Ok, this is significantly better, it almost cut the regression
> in half on my system. [...]
The other half still seems to be related to the emulation faults
that I fixed in the other patch:
> 0.49% [kernel] [k] page_fault
>
> 0.06% [kernel] [k] emulate_vsyscall
>
Plus TLB flush costs:
> 0.13% [kernel] [k] generic_smp_call_function_interrupt
> 0.08% [kernel] [k] flush_tlb_func
for which you should try the third patch I sent.
So please try all my fixes - the easiest way to do that would be
to try the latest tip:master that has all related fixes
integrated and send me a new perf top output - most page fault
and TLB flush overhead should be gone from the profile.
Thanks,
Ingo
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