This patch series adds support for pagefaults tracing to 'perf trace' command. It seems this feature was planned by Namhyung Kim (http://events.linuxfoundation.org/images/stories/pdf/klf2012_n_kim.pdf page 17/28) but I couldn't find any prior patches/discussion and started from scratch.
First three patches add the feature and options to enable faults and disable syscalls. Two last patches add events caching (like it's done in the perf kvm), so that we don't get fault events prior to mmap/comm events (makes sense only for live mode). This is just a proof-of-concept, and I'd like to get some comments about where and what I got wrong and what additional useful information I can expose in the trace. v2: - added more info to the changelogs - reworked options (-f -> -F, --pgfaults -> --pf=[all|min|maj]) - separated tracepoint_handler changes into additional patch - separated record/replay into additional patch - other fixes pointed out by Arnaldo Carvalho de Melo Stanislav Fomichev (7): perf trace: add perf_event parameter to tracepoint_handler perf trace: add support for pagefault tracing perf trace: add pagefaults record and replay support perf trace: add pagefault statistics perf trace: add possibility to switch off syscall events perf kvm: move perf_kvm__mmap_read into session utils perf trace: add events cache tools/perf/Documentation/perf-trace.txt | 19 ++ tools/perf/builtin-kvm.c | 88 +------- tools/perf/builtin-trace.c | 350 ++++++++++++++++++++++---------- tools/perf/util/session.c | 85 ++++++++ tools/perf/util/session.h | 5 + 5 files changed, 357 insertions(+), 190 deletions(-) -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
