forked from luck/tmp_suning_uos_patched
f9db0d0f1b
This patch introduce "call-graph=no" to disable per-event callgraph.
Here is an example.
perf record -e 'cpu/cpu-cycles,call-graph=fp/,cpu/instructions,call-graph=no/' sleep 1
perf report --stdio
# To display the perf.data header info, please use
--header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 6 of event 'cpu/cpu-cycles,call-graph=fp/'
# Event count (approx.): 774218
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................ ........................................
#
61.94% 0.00% sleep [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath
|
---entry_SYSCALL_64_fastpath
|
|--97.30%-- __brk
|
--2.70%-- mmap64
_dl_check_map_versions
_dl_check_all_versions
61.94% 0.00% sleep [kernel.vmlinux] [k] perf_event_mmap
|
---perf_event_mmap
|
|--97.30%-- do_brk
| sys_brk
| entry_SYSCALL_64_fastpath
| __brk
|
--2.70%-- mmap_region
do_mmap_pgoff
vm_mmap_pgoff
sys_mmap_pgoff
sys_mmap
entry_SYSCALL_64_fastpath
mmap64
_dl_check_map_versions
_dl_check_all_versions
......
# Samples: 6 of event 'cpu/instructions,call-graph=no/'
# Event count (approx.): 359692
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................ .................................
#
89.03% 0.00% sleep [unknown] [.] 0xffff6598ffff6598
89.03% 0.00% sleep ld-2.17.so [.] _dl_resolve_conflicts
89.03% 0.00% sleep [kernel.vmlinux] [k] page_fault
Signed-off-by: Kan Liang <kan.liang@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1439289050-40510-2-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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|---|---|---|
| .. | ||
| attr | ||
| attr.c | ||
| attr.py | ||
| bp_signal_overflow.c | ||
| bp_signal.c | ||
| Build | ||
| builtin-test.c | ||
| code-reading.c | ||
| dso-data.c | ||
| dwarf-unwind.c | ||
| evsel-roundtrip-name.c | ||
| evsel-tp-sched.c | ||
| fdarray.c | ||
| hists_common.c | ||
| hists_common.h | ||
| hists_cumulate.c | ||
| hists_filter.c | ||
| hists_link.c | ||
| hists_output.c | ||
| keep-tracking.c | ||
| kmod-path.c | ||
| llvm.c | ||
| make | ||
| mmap-basic.c | ||
| mmap-thread-lookup.c | ||
| openat-syscall-all-cpus.c | ||
| openat-syscall-tp-fields.c | ||
| openat-syscall.c | ||
| parse-events.c | ||
| parse-no-sample-id-all.c | ||
| perf-record.c | ||
| perf-targz-src-pkg | ||
| perf-time-to-tsc.c | ||
| pmu.c | ||
| python-use.c | ||
| rdpmc.c | ||
| sample-parsing.c | ||
| sw-clock.c | ||
| switch-tracking.c | ||
| task-exit.c | ||
| tests.h | ||
| thread-map.c | ||
| thread-mg-share.c | ||
| vmlinux-kallsyms.c | ||