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2025-12-02 - 12:49
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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 Wed Nov 26, 2025 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330663499132100,24cyclictest3511628-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
23:23:050
330664099131121,6cyclictest210-21kswapd021:20:011
3306634991276,80cyclictest3513756-21kworker/0:2+events@
igb_watchdog_task
23:25:370
330664099121110,7cyclictest3371983-21apt-get21:25:151
330664099121110,7cyclictest3371983-21apt-get21:25:151
3306634991182,76cyclictest3390487-21kworker/0:1+events@
igb_watchdog_task
22:15:410
3306634991182,76cyclictest3390487-21kworker/0:1+events@
igb_watchdog_task
22:15:410
3306634991155,73cyclictest3565431-21kworker/0:1+events@
igb_watchdog_task
00:35:190
3306634991073,62cyclictest3321118-21kworker/0:1+events@
igb_watchdog_task
20:20:020
33066349910579,19cyclictest3328583-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
20:02:370
33066349910549,16cyclictest3390487-21kworker/0:1+events@
igb_watchdog_task
22:46:430
33066349910465,15cyclictest3390487-21kworker/0:1+events@
igb_watchdog_task
22:10:350
3306634991045,78cyclictest13-21ksoftirqd/022:30:240
3306634991041,59cyclictest3374398-21kworker/0:2+events@
igb_watchdog_task
21:28:160
3306634991041,59cyclictest3374398-21kworker/0:2+events@
igb_watchdog_task
21:28:160
3306634991032,52cyclictest3358013-21kworker/0:0+events@
igb_watchdog_task
21:15:420
33066349910045,15cyclictest3565431-21kworker/0:1+events@
igb_watchdog_task
00:32:260
33066349910039,24cyclictest3302245-21kworker/0:1+events@
igb_watchdog_task
19:11:240
3306634991002,67cyclictest3318520-21kworker/0:2+events@
igb_watchdog_task
19:40:020
3306657999993,3cyclictest0-21swapper/523:23:055
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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