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2024-11-22 - 10:53
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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 Fri Nov 22, 2024 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3068824028,0sleep30-21swapper/318:40:333
3069823825,0sleep00-21swapper/018:40:380
3052323627,0sleep20-21swapper/218:38:362
3042423526,0sleep10-21swapper/118:37:271
29925080,0irq/32-eth0-rx-22391-21kthreadcore20:47:123
8315070,0irq/26-0000:00:0-21swapper/319:11:543
329970,0watchdog/319646-21cut21:22:143
329970,0watchdog/30-21swapper/323:05:573
8315060,0irq/26-0000:00:0-21swapper/319:42:143
339960,0migration/327682-21sh22:06:553
339960,0migration/323445-21sh22:42:053
329960,0watchdog/39624-21grep20:17:103
329960,0watchdog/3299250irq/32-eth0-rx-22:37:023
329960,0watchdog/323942sleep319:06:583
329960,0watchdog/30-21swapper/323:23:133
329960,0watchdog/30-21swapper/323:15:533
329960,0watchdog/30-21swapper/322:56:573
329960,0watchdog/30-21swapper/322:52:053
329960,0watchdog/30-21swapper/322:46:573
329960,0watchdog/30-21swapper/322:34:063
329960,0watchdog/30-21swapper/322:30:263
329960,0watchdog/30-21swapper/322:18:543
329960,0watchdog/30-21swapper/322:02:103
329960,0watchdog/30-21swapper/321:57:143
329960,0watchdog/30-21swapper/321:48:023
329960,0watchdog/30-21swapper/321:33:103
329960,0watchdog/30-21swapper/321:28:063
329960,0watchdog/30-21swapper/321:14:143
329960,0watchdog/30-21swapper/320:46:143
329960,0watchdog/30-21swapper/320:46:143
329960,0watchdog/30-21swapper/320:02:143
329960,0watchdog/30-21swapper/318:42:143
329960,0watchdog/30-21swapper/300:00:453
308899960,0cyclictest0-21swapper/221:32:072
308809960,0cyclictest0-21swapper/023:42:140
29925060,0irq/32-eth0-rx-0-21swapper/323:52:393
29925060,0irq/32-eth0-rx-0-21swapper/323:48:263
29925060,0irq/32-eth0-rx-0-21swapper/323:41:573
29925060,0irq/32-eth0-rx-0-21swapper/323:38:383
29925060,0irq/32-eth0-rx-0-21swapper/323:21:453
29925060,0irq/32-eth0-rx-0-21swapper/322:23:203
29925060,0irq/32-eth0-rx-0-21swapper/322:12:243
29925060,0irq/32-eth0-rx-0-21swapper/321:51:573
29925060,0irq/32-eth0-rx-0-21swapper/321:09:113
29925060,0irq/32-eth0-rx-0-21swapper/321:03:353
29925060,0irq/32-eth0-rx-0-21swapper/320:52:123
27160,0ktimersoftd/20-21swapper/222:52:242
149960,0migration/03858-21idleruntime20:37:090
149960,0migration/027438-21sh23:26:490
149960,0migration/024338-21aten_r1power_po23:02:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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