1. 15 Apr, 2016 5 commits
    • Arnaldo Carvalho de Melo's avatar
      perf evlist: Expose perf_event_mlock_kb_in_pages() helper · f5e7150c
      Arnaldo Carvalho de Melo authored
      When the user doesn't set --mmap-pages, perf_evlist__mmap() will do it
      by reading the maximum possible for a non-root user from the
      /proc/sys/kernel/perf_event_mlock_kb file.
      
      Expose that function so that 'perf trace' can, for root users, to bump
      mmap-pages to a higher value for root, based on the contents of this
      proc file.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-xay69plylwibpb3l4isrpl1k@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f5e7150c
    • Arnaldo Carvalho de Melo's avatar
      perf trace: Make --(min,max}-stack imply "--call-graph dwarf" · 05614993
      Arnaldo Carvalho de Melo authored
      If one uses:
      
        # perf trace --min-stack 16
      
      Then it implicitly means that callgraphs should be enabled, and the best
      option in terms of widespread availability is "dwarf".
      
      Further work needed to choose a better alternative, LBR, in capable
      systems.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-xtjmnpkyk42npekxz3kynzmx@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      05614993
    • Arnaldo Carvalho de Melo's avatar
      perf record: Export record_opts based callchain parsing helper · 0883e820
      Arnaldo Carvalho de Melo authored
      To be able to call it outside option parsing, like when setting a
      default --call-graph parameter in 'perf trace' when just --min-stack is
      used.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-xay69plylwibpb3l4isrpl1k@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0883e820
    • Arnaldo Carvalho de Melo's avatar
      perf trace: Introduce --min-stack filter · 5cf9c84e
      Arnaldo Carvalho de Melo authored
      Counterpart to --max-stack, to help focusing on deeply nested calls. Can
      be combined with --duration, etc.
      
      E.g.:
      
        System wide syscall tracing looking for call stacks longer than 66:
      
        # trace --mmap-pages 32768 --filter-pid 2711 --call-graph dwarf,16384 --min-stack 66
      
        Or more compactly:
      
        # trace -m 32768 --filt 2711 --call dwarf,16384 --min-st 66
         363.027 ( 0.002 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24230, nfds: 1, timeout_msecs: 4294967295         ) = 1
                                             [0xf6fdd] (/usr/lib64/libc-2.22.so)
                                             _xcb_conn_wait+0x92 (/usr/lib64/libxcb.so.1.1.0)
                                             _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0)
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                                             _XSend+0x19e (/usr/lib64/libX11.so.6.3.0)
                                             _XReply+0x82 (/usr/lib64/libX11.so.6.3.0)
                                             XSync+0x4d (/usr/lib64/libX11.so.6.3.0)
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                                             g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
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                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
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                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
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                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
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                                             __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                             [0x2909] (/usr/bin/gnome-shell)
         363.038 ( 0.006 ms): gnome-shell/2287 writev(fd: 5<socket:[32540]>, vec: 0x7ffc5ea243a0, vlen: 3            ) = 4
                                             __GI___writev+0x2d (/usr/lib64/libc-2.22.so)
                                             _xcb_conn_wait+0x359 (/usr/lib64/libxcb.so.1.1.0)
                                             _xcb_out_send+0x4d (/usr/lib64/libxcb.so.1.1.0)
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                                             _XSend+0x19e (/usr/lib64/libX11.so.6.3.0)
                                             _XReply+0x82 (/usr/lib64/libX11.so.6.3.0)
                                             XSync+0x4d (/usr/lib64/libX11.so.6.3.0)
                                             dri3_bind_tex_image+0x42 (/usr/lib64/libGL.so.1.2.0)
                                             _cogl_winsys_texture_pixmap_x11_update+0x117 (/usr/lib64/libcogl.so.20.4.1)
                                             _cogl_texture_pixmap_x11_update+0x67 (/usr/lib64/libcogl.so.20.4.1)
                                             _cogl_texture_pixmap_x11_pre_paint+0x13 (/usr/lib64/libcogl.so.20.4.1)
                                             _cogl_pipeline_layer_pre_paint+0x5e (/usr/lib64/libcogl.so.20.4.1)
                                             _cogl_rectangles_validate_layer_cb+0x1b (/usr/lib64/libcogl.so.20.4.1)
                                             cogl_pipeline_foreach_layer+0xbe (/usr/lib64/libcogl.so.20.4.1)
                                             _cogl_framebuffer_draw_multitextured_rectangles+0x77 (/usr/lib64/libcogl.so.20.4.1)
                                             cogl_framebuffer_draw_multitextured_rectangle+0x51 (/usr/lib64/libcogl.so.20.4.1)
                                             paint_clipped_rectangle+0xb6 (/usr/lib64/libmutter.so.0.0.0)
                                             meta_shaped_texture_paint+0x3e3 (/usr/lib64/libmutter.so.0.0.0)
                                             _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
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                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
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                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_real_paint+0x20 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             meta_window_group_paint+0x19f (/usr/lib64/libmutter.so.0.0.0)
                                             _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
                                             _g_closure_invoke_va+0xb2 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
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                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
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                                             meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0)
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                                             _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
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                                             [0x2909] (/usr/bin/gnome-shell)
         363.086 ( 0.042 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24250, nfds: 1, timeout_msecs: 4294967295         ) = 1
                                             [0xf6fdd] (/usr/lib64/libc-2.22.so)
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                                             [0x3d970] (/usr/lib64/gnome-shell/libgnome-shell.so)
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                                             clutter_stage_paint+0x3a (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             meta_stage_paint+0x45 (/usr/lib64/libmutter.so.0.0.0)
                                             _g_closure_invoke_va+0x164 (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit_valist+0xc0d (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             g_signal_emit+0x8f (/usr/lib64/libgobject-2.0.so.0.4600.2)
                                             clutter_actor_continue_paint+0x2bb (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_actor_paint.part.41+0x47b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             _clutter_stage_do_paint+0x17b (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_stage_cogl_redraw+0x496 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             _clutter_stage_do_update+0x117 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             clutter_clock_dispatch+0x169 (/usr/lib64/libclutter-1.0.so.0.2400.2)
                                             g_main_context_dispatch+0x15a (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             g_main_context_iterate.isra.29+0x1e0 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
                                             meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
                                             main+0x3f7 (/usr/bin/gnome-shell)
                                             __libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
                                             [0x2909] (/usr/bin/gnome-shell)
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-jncuxju9fibq2rl6olhqwjw6@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5cf9c84e
    • Arnaldo Carvalho de Melo's avatar
      perf trace: Do not print interrupted syscalls when using --duration · e519bd9a
      Arnaldo Carvalho de Melo authored
      With multiple threads, e.g. a system wide trace session, and one syscall is
      midway in a thread and another thread starts another syscall we must print the
      start of the interrupted syscall followed by ..., but that can't be done that
      way when we use the --duration filter, as we have to wait for the syscall exit
      to calculate the duration and decide if it should be filtered, so we have to
      disable the interrupted logic and only print at syscall exit, duh.
      
      Before:
      
        # trace --duration 100
        <SNIP>
         9.248 (0.023 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea26580, nfds: 1, timeout_msecs: 4294967295) ...
         9.296 (0.001 ms): gnome-shell/2287 recvmsg(fd: 11<socket:[35818]>, msg: 0x7ffc5ea264a0          ) ...
         9.311 (0.008 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                         ) ...
         9.859 (0.023 ms): gnome-shell/2287 poll(ufds: 0x7ffc5ea24250, nfds: 1, timeout_msecs: 4294967295) ...
         9.942 (0.051 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                         ) ...
        10.467 (0.003 ms): gnome-shell/2287 poll(ufds: 0x55e623431220, nfds: 50, timeout_msecs: 4294967295) ...
        11.136 (0.382 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                         ) ...
        11.223 (0.023 ms): SoftwareVsyncT/24369 futex(uaddr: 0x7f5ec5df8c14, op: WAIT_BITSET|PRIV, val: 1, utime: 0x7f5ec5df8b68, val3: 4294967295) ...
        16.865 (5.501 ms): firefox/24321 poll(ufds: 0x7f5ec388b460, nfds: 6, timeout_msecs: 4294967295   ) ...
        22.571 (0.006 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                         ) ...
        26.793 (4.063 ms): gnome-shell/2287 poll(ufds: 0x55e623431220, nfds: 50, timeout_msecs: 4294967295) ...
        26.917 (0.080 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                         ) ...
        27.291 (0.355 ms): qemu-system-x8/10065 ppoll(ufds: 0x55c98b39e400, nfds: 72, tsp: 0x7fffe4e4fe60, sigsetsize: 8) ...
        27.336 (0.012 ms): SoftwareVsyncT/24369 futex(uaddr: 0x7f5ec5df8c14, op: WAIT_BITSET|PRIV, val: 1, utime: 0x7f5ec5df8b68, val3: 4294967295) ...
        33.370 (5.958 ms): firefox/24321 poll(ufds: 0x7f5ec388b460, nfds: 6, timeout_msecs: 4294967295) ...
        33.866 (0.021 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                      ) ...
        35.762 (1.611 ms): gnome-shell/2287 poll(ufds: 0x55e623431220, nfds: 50, timeout_msecs: 8     ) ...
        38.765 (2.910 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                      ) ...
      
      After:
      
        # trace --duration 100
      
        238.292 (153.226 ms): hexchat/2786 poll(ufds: 0x559ea372f370, nfds: 6, timeout_msecs: 153) = 0 Timeout
        249.634 (199.433 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x7ffdcbb63610        ) = 1
        385.583 (147.257 ms): hexchat/2786 poll(ufds: 0x559ea372f370, nfds: 6, timeout_msecs: 147) = 0 Timeout
        397.166 (110.779 ms): gnome-shell/2287 poll(ufds: 0x55e623431220, nfds: 50, timeout_msecs: 4294967295) = 1
        601.839 (132.066 ms): Xorg/2025 select(n: 512, inp: 0x83a8e0, tvp: 0x8316a0                          ) = 1
        602.445 (132.679 ms): gnome-shell/2287 poll(ufds: 0x55e623431220, nfds: 50, timeout_msecs: 4294967295) = 1
        686.122 (300.418 ms): hexchat/2786 poll(ufds: 0x559ea372f370, nfds: 6, timeout_msecs: 300) = 0 Timeout
        815.033 (184.641 ms): JS Helper/24352 futex(uaddr: 0x7f5ed98e584c, op: WAIT|PRIV, val: 1149859) = 0
        825.868 (195.469 ms): JS Helper/24351 futex(uaddr: 0x7f5ed98e584c, op: WAIT|PRIV, val: 1149860) = 0
        840.738 (210.335 ms): JS Helper/24350 futex(uaddr: 0x7f5ed98e584c, op: WAIT|PRIV, val: 1149861) = 0
        914.898 (158.692 ms): Compositor/24363 futex(uaddr: 0x7f5ec8dfebf4, op: WAIT|PRIV, val: 1) = 0
        915.199 (100.747 ms): Timer/24358 futex(uaddr: 0x7f5ed98e56cc, op: WAIT_BITSET|PRIV|CLKRT, val: 2545397, utime: 0x7f5ecdbfec30, val3: 4294967295) = 0
        986.639 (247.325 ms): hexchat/2786 poll(ufds: 0x559ea372f370, nfds: 6, timeout_msecs: 247) = 0 Timeout
        996.239 (500.591 ms): chrome/16237 poll(ufds: 0x3ecd739bd0, nfds: 5, timeout_msecs: 500) = 0 Timeout
       1042.890 (120.076 ms): Timer/24358 futex(uaddr: 0x7f5ed98e56cc, op: WAIT_BITSET|PRIV|CLKRT, val: 2545403, utime: 0x7f5ecdbfec30, val3: 4294967295) = -1 ETIMEDOUT Connection timed out
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-d2nay6kjax5ro991c9kelvi5@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e519bd9a
  2. 14 Apr, 2016 21 commits
  3. 13 Apr, 2016 14 commits