Messages in this thread | | | Date | Tue, 20 Aug 2019 16:45:03 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 bpf-next 1/4] tracing/probe: Add PERF_EVENT_IOC_QUERY_PROBE ioctl |
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On Fri, Aug 16, 2019 at 03:31:46PM -0700, Daniel Xu wrote: > It's useful to know [uk]probe's nmissed and nhit stats. For example with > tracing tools, it's important to know when events may have been lost. > debugfs currently exposes a control file to get this information, but > it is not compatible with probes registered with the perf API.
What is this nmissed and nhit stuff?
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