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2024-09-13 - 07:28
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackdslot2.osadl.org (updated Fri Sep 13, 2024 00:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87921740,8sleep21386899cyclictest22:10:152
977021590,8sleep11386799cyclictest23:35:291
1235911450,118ptp4l401ktimersoftd/319:07:283
1335229012,18sleep20-21swapper/219:07:112
1353328511,18sleep00-21swapper/019:09:230
1386999714,62cyclictest18186-21cut21:35:263
324372690,6sleep31386999cyclictest00:25:173
123591620,1ptp4l391rcuc/321:02:103
13868996148,7cyclictest33-21ksoftirqd/221:30:122
303252590,43sleep235392irq/88-enp1s0-T23:10:252
1386899571,53cyclictest17389-21turbostat23:55:012
1386899571,53cyclictest17389-21turbostat23:55:002
13868995650,4cyclictest33-21ksoftirqd/221:00:002
1386699552,49cyclictest17383-21ls23:55:010
1386699552,49cyclictest17383-21ls23:55:000
57698540,22rtkit-daemon13432-21seq19:08:091
239302530,4sleep023929-21ps19:30:180
239302530,4sleep023929-21ps19:30:180
322732520,2sleep10-21swapper/100:25:151
57698510,2rtkit-daemon0-21swapper/023:01:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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