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2019-07-24 - 00:14

Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz, Linux 4.19.8-rt6 (Profile)

Latency plot of system in rack #0, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack0slot6.osadl.org (updated Tue Jul 23, 2019 00:46:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269625781,0alsa-sink-ALC880-21swapper/019:05:040
559599690,0cyclictest0-21swapper/020:51:580
559599690,0cyclictest0-21swapper/020:51:580
269625693,0alsa-sink-ALC880-21swapper/119:05:161
5625996866,0cyclictest794-21snmpd20:43:266
5604996867,0cyclictest1794-21gnome-shell22:17:582
5621996766,0cyclictest1794-21gnome-shell22:27:595
5615996766,0cyclictest5947-21sensors20:10:094
5599996766,0cyclictest1794-21gnome-shell21:55:591
5609996665,0cyclictest1794-21gnome-shell23:50:593
5609996665,0cyclictest1794-21gnome-shell00:35:583
5609996665,0cyclictest0-21swapper/321:50:133
5599996665,0cyclictest1794-21gnome-shell22:28:581
5595996665,0cyclictest1794-21gnome-shell21:47:580
562199650,0cyclictest0-21swapper/500:09:595
5599996564,0cyclictest1794-21gnome-shell21:33:581
5599996564,0cyclictest0-21swapper/123:20:591
5615996463,0cyclictest0-21swapper/422:43:504
5609996463,0cyclictest1794-21gnome-shell23:26:593
5609996463,0cyclictest0-21swapper/321:35:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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