diff options
| author | Kan Liang <[email protected]> | 2020-02-24 13:59:22 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-10 14:46:19 -0300 |
| commit | 2a14c1bf017f48a17c8c0ba26a22625363e77cc7 (patch) | |
| tree | 616467e12bc8df3f3196c7b938498b7f459f8c83 /lib/mpi/mpi-mod.c | |
| parent | f742634ab47f59160a85ddc502418556b21953c2 (diff) | |
perf util: Factor out sysctl__nmi_watchdog_enabled()
The NMI watchdog status is required for metric group constraint
examination. Factor out sysctl__nmi_watchdog_enabled() to retrieve the
NMI watchdog status.
Users may count more than one metric group each time. If so, the NMI
watchdog status may be retrieved several times. To reduce the overhead,
cache the NMI watchdog status.
Replace the NMI watchdog status checking in print_footer() by
sysctl__nmi_watchdog_enabled().
Suggested-by: Andi Kleen <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions