On Mon, Nov 13, 2017 at 6:36 PM, Stephane Eranian <eran...@googlemail.com>
wrote:
>
>
> On Mon, Nov 13, 2017 at 1:34 PM, Vince Weaver <vincent.wea...@maine.edu>
> wrote:
>
>> On Mon, 13 Nov 2017, Stephane Eranian wrote:
>>
>>
>> > > The issue here is that check_events does not take a comma separated
>> list
>> > of events, it takes a white space speratated list
>> > of arguments.
>>
>> yes. The bug is that we weren't trying to query two events, we were just
>> intending to do one but accidentally cut-and-pasted two events together
>> like this. We expected it would fail, but libpfm4 treats it as one valid
>> event (both at the command line, and through the PAPI interface).
>>
>> > The umask MISS_CAUSES_A_WALK is valid for the events here.
>>
>> yes, but "MISS_CAUSES_A_WALK,DTLB_STORE_MISSES" is not, which is what I
>> am
>> picturing libpfm4 would be trying to match against. I need to dig through
>> the code and see what is happening.
>>
>> It does treat it as one event. It stops processing at the comma. You see
> the actual event name
> is correct.
> It does not generate an error because it found a comma instead of \0.
> We can fix that.
>
>
Fixed upstream. Please pull and try again.
> > > Requested Event:
>> > > DTLB_LOAD_MISSES:MISS_CAUSES_A_WALK,DTLB_STORE_MISSES:MISS_
>> > > CAUSES_A_WALK:u=1
>> > > Actual Event: skl::DTLB_LOAD_MISSES:MISS_CAU
>> SES_A_WALK:k=1:u=1:e=0:i=0:
>> > > c=0:t=0:intx=0:intxcp=0
>> > > PMU : Intel Skylake
>> > > IDX : 419430412
>> > > Codes : 0x530108
>>
>>
>
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