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2025-11-09 - 21:06
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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 20 highest latencies:
System rack3slot4.osadl.org (updated Sun Nov 09, 2025 12:46:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2480192220342013,11sleep50-21swapper/507:05:305
254439321360,4chrt0-21swapper/509:25:265
248128499135121,7cyclictest2736184-21kworker/u12:4+events_unbound@
flush_memcg_stats_dwork
12:21:143
248127599133119,7cyclictest2678036-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:46:061
248127599133119,7cyclictest2678036-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
11:46:061
248128499130115,7cyclictest2484828-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
07:20:223
248128499125111,7cyclictest2678036-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
12:01:243
2481270991214,112cyclictest1350ksoftirqd/007:40:180
2481270991214,112cyclictest1350ksoftirqd/007:40:180
248128499119106,6cyclictest2549225-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
09:30:553
2481270991172,92cyclictest1164-21snmpd12:00:050
2481270991152,5cyclictest2530529-21mailstats09:10:390
2481270991141,100cyclictest0-21swapper/011:25:150
24812849911298,7cyclictest2488207-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
07:30:343
24812709911254,23cyclictest2518048-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
09:20:010
24812709911254,23cyclictest2518048-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
09:20:000
24812709911186,18cyclictest2538865-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
09:40:420
2481270991111,91cyclictest0-21swapper/008:20:330
24812709910824,65cyclictest2567883-21ssh09:46:490
2481270991071,3cyclictest0-21swapper/011:58:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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