Messages in this thread | | | Date | Sat, 16 Apr 2016 11:12:40 +0200 | From | Ingo Molnar <> | Subject | Re: [GIT PULL 00/15] perf/core improvements |
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* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> Hi Ingo, > > Please consider pulling, > > - Arnaldo > > The following changes since commit 0b22cd276cec21107d9d69453fa58abba73e71df: > > Merge tag 'perf-core-for-mingo-20160414' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-14 15:30:59 +0200) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160415 > > for you to fetch changes up to f3e459d16a8493b617ccf2a940330279679e0291: > > perf trace: Bump --mmap-pages when --call-graph is used by the root user (2016-04-15 17:52:34 -0300) > > ---------------------------------------------------------------- > perf/core improvements: > > User visible: > > - Wire the callchain unwinding "max-stack" know to 'perf script --max-stack', > allowing to limit the depth of callchains, possibly reducing processing > time (Arnaldo Carvalho de Melo) > > - Ditto for 'perf trace --max-stack' (Arnaldo Carvalho de Melo) > > - Introduce a --min-stack filter for 'perf trace', to show syscalls that > had a userspace callchain leading to it at least min-stack deep (Arnaldo Carvalho de Melo) > > - Make 'perf trace' work with multiple threads and the --duration filter, > i.e. do not print the start of an interrupted syscall followed by ... > to print interrupts from other threads, as we need to wait the sys_exit > syscall tracepoint to calculate the duration, duh. (Arnaldo Carvalho de Melo) > > System wide --duration now works as expected: > > [root@jouet ~]# trace --duration 100 > 152.393 (145.147 ms): Timer/24358 futex(uaddr: 0x7f5ed98e56cc, op: WAIT_BITSET|PRIV|CLKRT, val: 7055125, utime: 0x7f5ecdbfec30, val3: 4294967295) = -1 ETIMEDOUT Connection timed out > 152.438 (145.040 ms): firefox/24321 poll(ufds: 0x7f5ec388b460, nfds: 6, timeout_msecs: 4294967295) = 1 > 358.580 (158.279 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x7ffdcbb63610) = 0 Timeout > 358.687 (148.285 ms): gnome-terminal/2711 poll(ufds: 0x55b7e6811ad0, nfds: 15, timeout_msecs: 249) = 1 > 370.150 (169.569 ms): gnome-shell/2287 poll(ufds: 0x55e623d65490, nfds: 86, timeout_msecs: 4294967295) = 1 > > - Now 'perf trace's --max-stack and --min-stack will automatically set > "--call-graph dwarf", if --call-graph is not present on the command line: > > [root@jouet ~]# perf trace -e nanosleep --max-stack 3 usleep 1 > 0.299 ( 0.057 ms): usleep/29658 nanosleep(rqtp: 0x7fff80f3b230) = 0 > __nanosleep+0x10 (/usr/lib64/libc-2.22.so) > usleep+0x34 (/usr/lib64/libc-2.22.so) > main+0x1eb (/usr/bin/usleep) > [root@jouet ~]# > > - Bump 'perf trace --mmap-pages' for root when using callchains and not > specifying --mmap-pages explicitely (Arnaldo Carvalho de Melo) > > Build fixes: > > - The python binding object had missing symbols, to some refactoring > to fix that (Arnaldo Carvalho de Melo) > > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > > ---------------------------------------------------------------- > Arnaldo Carvalho de Melo (15): > perf trace: Move socket_type beautifier to tools/perf/trace/beauty/ > perf callchain: Start moving away from global per thread cursors > perf evsel: Remove symbol_conf usage > perf symbols: Move fprintf routines to separate object file > perf evsel: Require that callchains be resolved before calling fprintf_{sym,callchain} > perf tools: Remove addr_location argument to sample__fprintf_callchain > perf script: Add --max-stack knob > perf trace: Add --max-stack knob > perf evsel: Move fprintf methods to separate source file > perf trace: Do not print interrupted syscalls when using --duration > perf trace: Introduce --min-stack filter > perf record: Export record_opts based callchain parsing helper > perf trace: Make --(min,max}-stack imply "--call-graph dwarf" > perf evlist: Expose perf_event_mlock_kb_in_pages() helper > perf trace: Bump --mmap-pages when --call-graph is used by the root user > > tools/perf/Documentation/perf-script.txt | 10 + > tools/perf/Documentation/perf-trace.txt | 23 +++ > tools/perf/builtin-kmem.c | 2 +- > tools/perf/builtin-record.c | 35 ++-- > tools/perf/builtin-script.c | 39 ++-- > tools/perf/builtin-trace.c | 144 +++++++------- > tools/perf/trace/beauty/socket_type.c | 60 ++++++ > tools/perf/util/Build | 2 + > tools/perf/util/callchain.c | 5 +- > tools/perf/util/callchain.h | 9 +- > tools/perf/util/evlist.c | 42 ++-- > tools/perf/util/evlist.h | 2 + > tools/perf/util/evsel.c | 220 --------------------- > tools/perf/util/evsel.h | 19 +- > tools/perf/util/evsel_fprintf.c | 212 ++++++++++++++++++++ > tools/perf/util/hist.c | 2 +- > tools/perf/util/machine.c | 26 +-- > tools/perf/util/machine.h | 4 + > tools/perf/util/python-ext-sources | 1 + > .../perf/util/scripting-engines/trace-event-perl.c | 2 +- > .../util/scripting-engines/trace-event-python.c | 2 +- > tools/perf/util/symbol.c | 71 ------- > tools/perf/util/symbol.h | 5 + > tools/perf/util/symbol_fprintf.c | 71 +++++++ > 24 files changed, 565 insertions(+), 443 deletions(-) > create mode 100644 tools/perf/trace/beauty/socket_type.c > create mode 100644 tools/perf/util/evsel_fprintf.c > create mode 100644 tools/perf/util/symbol_fprintf.c
Pulled, thanks a lot Arnaldo!
Ingo
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