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2025-11-03 - 11:50
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 10 highest latencies:
System rack3slot4.osadl.org (updated Mon Nov 03, 2025 00:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
542281217521743,4sleep50-21swapper/519:09:405
5414632885870,6sleep1524198-21kworker/1:3+events@
dbs_work_handler
19:05:341
5424659914992,36cyclictest685008-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:45:590
54248099136122,7cyclictest622168-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:42:203
5424659913038,32cyclictest618334-1kworker/0:0H+mmc_complete@
mmc_blk_mq_complete_work
21:45:340
54247099129115,7cyclictest544145-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
19:45:321
54247099127112,8cyclictest685008-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:47:121
54247099127111,7cyclictest606095-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:12:241
5424659912565,48cyclictest0-21swapper/020:11:310
54247099123110,6cyclictest667867-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
22:17:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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