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Swapnil Sapkal
c3030995f2
Define new, perf tool only, sample types and their layouts. Add logic to parse /proc/schedstat, convert it to perf sample format and save samples to perf.data file with `perf sched stats record` command. Also add logic to read perf.data file, interpret schedstat samples and print rawdump of samples with `perf script -D`. Note that, /proc/schedstat file output is standardized with version number. The patch supports v15 but older or newer version can be added easily. Co-developed-by: Ravi Bangoria <[email protected]> Signed-off-by: Ravi Bangoria <[email protected]> Signed-off-by: Swapnil Sapkal <[email protected]> Tested-by: Chen Yu <[email protected]> Tested-by: James Clark <[email protected]> Acked-by: Ian Rogers <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Anubhav Shelat <[email protected]> Cc: Ben Gainey <[email protected]> Cc: Blake Jones <[email protected]> Cc: Chun-Tse Shao <[email protected]> Cc: David Vernet <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Dr. David Alan Gilbert <[email protected]> Cc: Gautham Shenoy <[email protected]> Cc: Graham Woodward <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Juri Lelli <[email protected]> Cc: K Prateek Nayak <[email protected]> Cc: Kan Liang <[email protected]> Cc: Leo Yan <[email protected]> Cc: Madadi Vineeth Reddy <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Santosh Shukla <[email protected]> Cc: Shrikanth Hegde <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Thomas Falcon <[email protected]> Cc: Tim Chen <[email protected]> Cc: Vincent Guittot <[email protected]> Cc: Yang Jihong <[email protected]> Cc: Yujie Liu <[email protected]> Cc: Zhongqiu Han <[email protected]> [ PRIu64 needs uint64_t, not 'unsigned long' to work on both 32-bit and 64-bit ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>