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2025-01-13 - 09:59
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot2.osadl.org (updated Mon Jan 13, 2025 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
522323829,0sleep20-21swapper/218:37:272
513323828,0sleep30-21swapper/318:36:243
499523626,0sleep10-21swapper/118:34:501
501123329,0sleep00-21swapper/018:35:010
329980,0watchdog/30-21swapper/320:24:043
54079976,0cyclictest4833-21kthreadcore20:34:062
329970,0watchdog/30-21swapper/322:34:523
329970,0watchdog/30-21swapper/320:59:003
329970,0watchdog/30-21swapper/320:38:123
29925070,0irq/32-eth0-rx-25484-21sed23:04:043
54079966,0cyclictest83150irq/26-0000:00:20:44:032
54079960,0cyclictest0-21swapper/223:13:392
54059960,0cyclictest2378-21kthreadcore22:24:050
339960,0migration/38151-21sh23:11:553
339960,0migration/331312-21munin-node23:49:143
339960,0migration/318628-21sh00:04:363
339960,0migration/31662-21sh23:55:593
329960,0watchdog/322874-21kthreadcore21:29:043
329960,0watchdog/30-21swapper/323:38:123
329960,0watchdog/30-21swapper/323:24:563
329960,0watchdog/30-21swapper/323:15:483
329960,0watchdog/30-21swapper/322:55:443
329960,0watchdog/30-21swapper/322:41:243
329960,0watchdog/30-21swapper/322:10:083
329960,0watchdog/30-21swapper/321:53:563
329960,0watchdog/30-21swapper/321:49:203
329960,0watchdog/30-21swapper/321:44:363
329960,0watchdog/30-21swapper/321:39:283
329960,0watchdog/30-21swapper/321:26:083
329960,0watchdog/30-21swapper/321:15:523
329960,0watchdog/30-21swapper/320:51:563
329960,0watchdog/30-21swapper/320:47:443
329960,0watchdog/30-21swapper/318:41:533
329960,0watchdog/30-21swapper/300:00:363
29935060,0irq/33-eth0-tx-9573-21munin-node19:49:060
29935060,0irq/33-eth0-tx-27452-21munin-node19:39:120
29935060,0irq/33-eth0-tx-21201-21munin-node20:24:050
29935060,0irq/33-eth0-tx-13998-21munin-node20:19:040
29925060,0irq/32-eth0-rx-286422sleep323:28:543
29925060,0irq/32-eth0-rx-17889-21users23:19:083
29925060,0irq/32-eth0-rx-0-21swapper/323:40:403
29925060,0irq/32-eth0-rx-0-21swapper/322:53:263
29925060,0irq/32-eth0-rx-0-21swapper/322:44:053
29925060,0irq/32-eth0-rx-0-21swapper/321:19:543
29925060,0irq/32-eth0-rx-0-21swapper/321:09:053
29925060,0irq/32-eth0-rx-0-21swapper/321:04:253
29925060,0irq/32-eth0-rx-0-21swapper/320:54:383
29925060,0irq/32-eth0-rx-0-21swapper/320:42:433
149960,0migration/04384-21latency_hist22:48:470
149960,0migration/031256-21sh22:22:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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