diff options
| author | Kan Liang <[email protected]> | 2016-04-24 23:28:09 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2016-04-25 20:35:59 -0300 |
| commit | 09623d79466e996f5dc2753e16f04fda6f078041 (patch) | |
| tree | 0e322e3672fb9e89220b5534b6a6afc09a2d682d /mm/cma_debug.c | |
| parent | c0664893050cc6b2d8b02d3e035f82fbfd0cd4cf (diff) | |
perf hists: Clear dummy entry accumulated period
The accumulated period for dummy entry should also be 0. Otherwise, the
total overhead could be overcounted.
$ perf record -e '{LLC-load-misses,cpu/instructions/}' --call-graph=lbr ./tchain
$ perf report --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
# Total Lost Samples: 0
#
# Samples: 21K of event 'anon group { LLC-load-misses, cpu/instructions/ }'
# Event count (approx.): 16313667937
#
# Children Self Command Shared Object Symbol
# ................ ................ ........... ................ ............................
#
4769.98% 0.01% 0.00% 0.01% tchain_edit [kernel.vmlinux] [k] update_fast_timekeeper
4356.18% 0.01% 0.00% 0.01% tchain_edit [kernel.vmlinux] [k] trigger_load_balance
3181.12% 0.01% 0.00% 0.01% tchain_edit [kernel.vmlinux] [k] irq_work_tick
1592.37% 0.00% 0.00% 0.00% tchain_edit [kernel.vmlinux] [k] cpu_needs_another_gp
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'mm/cma_debug.c')
0 files changed, 0 insertions, 0 deletions