Messages in this thread | | | Date | Fri, 8 May 2015 13:05:47 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH V8 3/8] perf, x86: handle multiple records in PEBS buffer |
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> The first issue is that the 'status' field of the PEBS record is a copy > of the GLOBAL_STATUS MSR at PEBS assist time. To see why this is a
I wanted to mention that Skylake has this issue fixed. The status field in PEBS is now only the counter that triggered the PEBS record.
> The second issue is that the hardware will only emit one record for two > or more counters if the event that triggers the assist is 'close'. The
If two events gets merged it is one or the other.
-Andi
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