Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH 13/16] perf: Add a speculative page fault sw events | Date | Wed, 09 Aug 2017 23:18:15 +1000 |
| |
Laurent Dufour <ldufour@linux.vnet.ibm.com> writes:
> Add new software events to count succeeded and failed speculative page > faults. > > Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> > --- > include/uapi/linux/perf_event.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h > index b1c0b187acfe..fbfb03dff334 100644 > --- a/include/uapi/linux/perf_event.h > +++ b/include/uapi/linux/perf_event.h > @@ -111,6 +111,8 @@ enum perf_sw_ids { > PERF_COUNT_SW_EMULATION_FAULTS = 8, > PERF_COUNT_SW_DUMMY = 9, > PERF_COUNT_SW_BPF_OUTPUT = 10, > + PERF_COUNT_SW_SPF_DONE = 11, > + PERF_COUNT_SW_SPF_FAILED = 12,
Can't you calculate:
PERF_COUNT_SW_SPF_FAILED = PERF_COUNT_SW_PAGE_FAULTS - PERF_COUNT_SW_SPF_DONE
ie. do you need a separate event for it?
cheers
| |