On Tue, Aug 6, 2019 at 4:39 PM Daniel Xu <dxu@xxxxxxxxx> wrote: > > It's useful to know kprobe's nmissed and nhit stats. For example with > tracing tools, it's important to know when events may have been lost. > There is currently no way to get that information from the perf API. > This patch adds a new ioctl that lets users query this information. > Part of the change is on perf side, so please include linux-kernel and perf mantainers and reviewers: M: Peter Zijlstra <peterz@xxxxxxxxxxxxx> M: Ingo Molnar <mingo@xxxxxxxxxx> M: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> R: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> R: Jiri Olsa <jolsa@xxxxxxxxxx> R: Namhyung Kim <namhyung@xxxxxxxxxx> L: linux-kernel@xxxxxxxxxxxxxxx I guess this is based on bpf-next tree. So please use subject perfix [PATCH bpf-next] ([PATCH v2 bpf-next] when resend). Thanks, Song
