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author | Vito Caputo <vcaputo@gnugeneration.com> | 2015-12-07 11:28:18 -0800 |
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committer | Vito Caputo <vito.caputo@coreos.com> | 2016-01-12 09:35:17 -0800 |
commit | 34b87517749caa4142b19eb3c63bdf349fafbc49 (patch) | |
tree | 93a48cb549713e7acdf4c63590b9891f59eb0f78 /src/libsystemd/sd-bus/bus-creds.c | |
parent | cf6c8c46fceac83dfb3f2d55fae5220e60841553 (diff) |
sd-event: instrument sd_event_run() for profiling delays
Set SD_EVENT_PROFILE_DELAYS to activate accounting and periodic logging
of the distribution of delays between sd_event_run() calls.
Time spent in dispatching as well as time spent outside of
sd_event_run() is measured and accounted for. Every 5 seconds a
logarithmic histogram loop iteration delays since 5 seconds previous is
logged.
This is useful in identifying the frequency and magnitude of latencies
affecting the event loop, which should be kept to a minimum.
Diffstat (limited to 'src/libsystemd/sd-bus/bus-creds.c')
0 files changed, 0 insertions, 0 deletions