Messages in this thread | | | Date | Mon, 6 Nov 2017 13:25:19 -0800 | From | Andi Kleen <> | Subject | Re: [PATCH v2 4/5] perf/record: add support for sampling skid ip |
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On Thu, Nov 02, 2017 at 11:15:58AM -0700, Stephane Eranian wrote: > This patch adds a new --skid-ip option to perf record > to capture the unmodified interrupted instruction pointer in > each sample. With this option, the kernel captures both the > ip and skid ip. Unless precise mode is enabled both ip are > the same. They may be different in precise mode depending > on the event and precise sampling mode. > > $ perf record --skid-ip .....
perf record already has too many options. I would rather just make it a event qualifier which is more flexible too
perf record -e cpu/cpu-cycles,skidip=1/
-Andi
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