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2021-07-26 - 19:48

Intel(R) Core(TM) i3-2350M CPU @ 2.30GHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #6, slot #8
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 -h400 -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 rack6slot8.osadl.org (updated Mon Jul 26, 2021 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2222399677669,6cyclictest6576-21kerneloops09:47:541
2222299677668,7cyclictest6576-21kerneloops09:35:170
2222599676669,6cyclictest6576-21kerneloops09:34:583
2222599676669,5cyclictest6576-21kerneloops09:53:073
2222599676668,6cyclictest6576-21kerneloops08:26:223
2222599675668,6cyclictest6576-21kerneloops11:33:073
2222599675668,6cyclictest6576-21kerneloops09:06:183
2222299675666,7cyclictest6576-21kerneloops07:24:220
2222299675666,7cyclictest6576-21kerneloops07:24:210
2222499674666,6cyclictest6576-21kerneloops11:02:592
2222399674670,2cyclictest6576-21kerneloops08:48:021
2222399674667,5cyclictest6576-21kerneloops12:04:531
2222599673667,5cyclictest6576-21kerneloops09:10:413
2222599673666,5cyclictest6576-21kerneloops08:12:273
2222599673663,8cyclictest6576-21kerneloops10:20:103
2222399673666,5cyclictest6576-21kerneloops11:58:561
2222399673666,5cyclictest6576-21kerneloops07:34:461
2222299673665,6cyclictest6576-21kerneloops09:05:560
2222599672668,2cyclictest6576-21kerneloops08:22:293
2222499672666,5cyclictest6576-21kerneloops07:53:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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