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2025-04-02 - 08:22
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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 Wed Apr 02, 2025 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1002626359,0sleep00-21swapper/018:30:390
336723826,0sleep20-21swapper/218:29:122
1017523827,0sleep10-21swapper/118:32:241
1001423727,0sleep30-21swapper/318:30:303
329990,0watchdog/30-21swapper/322:52:063
29925080,0irq/32-eth0-rx-0-21swapper/323:04:243
29925070,0irq/32-eth0-rx-0-21swapper/323:54:323
29925070,0irq/32-eth0-rx-0-21swapper/322:13:563
29925070,0irq/32-eth0-rx-0-21swapper/321:26:243
8315060,0irq/26-0000:00:17202-21unixbench_singl19:19:333
8315060,0irq/26-0000:00:0-21swapper/318:34:053
339960,0migration/34502-21kthreadcore23:34:203
339960,0migration/325691-21switchtime22:14:263
329960,0watchdog/328945-21tr19:09:183
329960,0watchdog/30-21swapper/323:49:223
329960,0watchdog/30-21swapper/323:29:303
329960,0watchdog/30-21swapper/323:17:463
329960,0watchdog/30-21swapper/323:17:463
329960,0watchdog/30-21swapper/323:11:263
329960,0watchdog/30-21swapper/322:59:063
329960,0watchdog/30-21swapper/322:41:023
329960,0watchdog/30-21swapper/322:36:423
329960,0watchdog/30-21swapper/322:24:543
329960,0watchdog/30-21swapper/322:00:063
329960,0watchdog/30-21swapper/321:31:463
329960,0watchdog/30-21swapper/321:12:463
329960,0watchdog/30-21swapper/321:04:223
329960,0watchdog/30-21swapper/320:59:183
329960,0watchdog/30-21swapper/320:54:183
329960,0watchdog/30-21swapper/320:53:103
329960,0watchdog/30-21swapper/320:45:343
329960,0watchdog/30-21swapper/320:43:223
329960,0watchdog/30-21swapper/320:36:063
329960,0watchdog/30-21swapper/320:23:143
329960,0watchdog/30-21swapper/319:27:143
329960,0watchdog/30-21swapper/318:54:263
29935060,0irq/33-eth0-tx-30125-21munin-node20:04:200
29925060,0irq/32-eth0-rx-29055-21perl21:34:163
29925060,0irq/32-eth0-rx-25451-21diskstats18:44:203
29925060,0irq/32-eth0-rx-0-21swapper/323:40:583
29925060,0irq/32-eth0-rx-0-21swapper/323:23:513
29925060,0irq/32-eth0-rx-0-21swapper/322:46:163
29925060,0irq/32-eth0-rx-0-21swapper/322:21:163
29925060,0irq/32-eth0-rx-0-21swapper/321:56:533
29925060,0irq/32-eth0-rx-0-21swapper/321:51:213
29925060,0irq/32-eth0-rx-0-21swapper/321:45:203
29925060,0irq/32-eth0-rx-0-21swapper/321:15:133
29925060,0irq/32-eth0-rx-0-21swapper/300:03:323
149960,0migration/08421-21sh22:04:060
149960,0migration/06693-21munin-node21:14:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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