Messages in this thread | | | Date | Mon, 9 Apr 2018 23:47:48 -0700 (PDT) | From | David Rientjes <> | Subject | Re: [PATCH v9 21/24] perf tools: Add support for the SPF perf event |
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On Mon, 26 Mar 2018, Andi Kleen wrote:
> > Aside: should there be a new spec_flt field for struct task_struct that > > complements maj_flt and min_flt and be exported through /proc/pid/stat? > > No. task_struct is already too bloated. If you need per process tracking > you can always get it through trace points. >
Hi Andi,
We have
count_vm_event(PGFAULT); count_memcg_event_mm(vma->vm_mm, PGFAULT);
in handle_mm_fault() but not counterpart for spf. I think it would be helpful to be able to determine how much faulting can be done speculatively if there is no per-process tracking without tracing.
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