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2025-03-20 - 02:30
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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 100 highest latencies:
System rack1slot2.osadl.org (updated Thu Mar 20, 2025 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
259123826,0sleep10-21swapper/118:34:321
248623828,0sleep30-21swapper/318:33:263
241923827,0sleep20-21swapper/218:32:412
226722824,0sleep00-21swapper/018:30:550
329980,0watchdog/30-21swapper/320:55:173
29925070,0irq/32-eth0-rx-6395-21sh00:03:063
8315060,0irq/26-0000:00:12097-21ls20:59:522
35160,0ktimersoftd/30-21swapper/322:13:273
35160,0ktimersoftd/30-21swapper/320:50:223
339960,0migration/36645-21munin-node20:30:133
339960,0migration/36068-21sh21:15:323
339960,0migration/331558-21sh20:45:183
339960,0migration/317957-21munin-node20:40:103
339960,0migration/314611-21sh20:35:313
329960,0watchdog/33275-21taskset22:45:323
329960,0watchdog/30-21swapper/323:32:483
329960,0watchdog/30-21swapper/323:12:163
329960,0watchdog/30-21swapper/323:05:203
329960,0watchdog/30-21swapper/323:00:043
329960,0watchdog/30-21swapper/323:00:043
329960,0watchdog/30-21swapper/322:56:563
329960,0watchdog/30-21swapper/322:49:563
329960,0watchdog/30-21swapper/322:25:043
329960,0watchdog/30-21swapper/322:21:323
329960,0watchdog/30-21swapper/322:14:523
329960,0watchdog/30-21swapper/322:08:523
329960,0watchdog/30-21swapper/322:03:283
329960,0watchdog/30-21swapper/321:56:213
329960,0watchdog/30-21swapper/321:40:173
329960,0watchdog/30-21swapper/321:21:133
329960,0watchdog/30-21swapper/321:10:453
329960,0watchdog/30-21swapper/320:59:573
29935060,0irq/33-eth0-tx-29191-21munin-node20:05:120
29925060,0irq/32-eth0-rx-0-21swapper/323:20:443
29925060,0irq/32-eth0-rx-0-21swapper/323:15:373
29925060,0irq/32-eth0-rx-0-21swapper/322:36:443
29925060,0irq/32-eth0-rx-0-21swapper/321:45:493
29925060,0irq/32-eth0-rx-0-21swapper/321:26:003
29925060,0irq/32-eth0-rx-0-21swapper/320:20:113
26949960,0cyclictest0-21swapper/220:30:122
26909960,0cyclictest0-21swapper/123:20:041
4150,0ktimersoftd/00-21swapper/023:18:570
339950,0migration/35290-21kthreadcore18:35:123
339950,0migration/327657-21kthreadcore20:00:123
339950,0migration/324881-21cpuspeed_turbos18:50:073
339950,0migration/322375-21kthreadcore19:30:143
339950,0migration/318045-21kthreadcore19:55:073
339950,0migration/314720-21kthreadcore18:40:103
339950,0migration/310990-21kthreadcore19:45:103
329950,0watchdog/36386-21runrttasks21:04:573
329950,0watchdog/332335-21kthreadcore20:05:093
329950,0watchdog/30-21swapper/323:55:003
329950,0watchdog/30-21swapper/323:45:163
329950,0watchdog/30-21swapper/323:40:163
329950,0watchdog/30-21swapper/322:30:203
329950,0watchdog/30-21swapper/321:30:053
329950,0watchdog/30-21swapper/320:09:573
329950,0watchdog/30-21swapper/319:51:133
329950,0watchdog/30-21swapper/319:40:093
329950,0watchdog/30-21swapper/319:25:413
329950,0watchdog/30-21swapper/319:22:253
329950,0watchdog/30-21swapper/319:15:293
329950,0watchdog/30-21swapper/319:10:413
329950,0watchdog/30-21swapper/319:05:053
329950,0watchdog/30-21swapper/319:00:373
329950,0watchdog/30-21swapper/318:54:533
329950,0watchdog/30-21swapper/318:45:333
29935050,0irq/33-eth0-tx-32320-21ssh20:46:232
29935050,0irq/33-eth0-tx-31285-21munin-node00:00:082
29935050,0irq/33-eth0-tx-2981-21munin-node21:40:122
29935050,0irq/33-eth0-tx-18819-21munin-node23:25:112
29935050,0irq/33-eth0-tx-16010-21cut23:00:072
29935050,0irq/33-eth0-tx-16010-21cut23:00:072
29935050,0irq/33-eth0-tx-0-21swapper/221:50:392
29935050,0irq/33-eth0-tx-0-21swapper/221:25:132
29935050,0irq/33-eth0-tx-0-21swapper/020:10:060
29925050,0irq/32-eth0-rx-32291-21kthreadcore23:35:113
29925050,0irq/32-eth0-rx-0-21swapper/323:50:423
29925050,0irq/32-eth0-rx-0-21swapper/323:24:553
29925050,0irq/32-eth0-rx-0-21swapper/322:40:193
29925050,0irq/32-eth0-rx-0-21swapper/321:49:573
29925050,0irq/32-eth0-rx-0-21swapper/321:35:003
29925050,0irq/32-eth0-rx-0-21swapper/320:25:053
29925050,0irq/32-eth0-rx-0-21swapper/320:15:073
29925050,0irq/32-eth0-rx-0-21swapper/319:35:073
27150,0ktimersoftd/20-21swapper/221:46:152
27150,0ktimersoftd/20-21swapper/221:15:582
26949955,0cyclictest0-21swapper/223:39:522
26949950,0cyclictest0-21swapper/222:33:482
26909950,0cyclictest7635-21diskmemload22:26:471
26899955,0cyclictest0-21swapper/023:04:550
26899955,0cyclictest0-21swapper/022:44:530
26899955,0cyclictest0-21swapper/022:41:440
26899955,0cyclictest0-21swapper/020:21:250
26899955,0cyclictest0-21swapper/018:55:110
26899950,0cyclictest0-21swapper/022:22:490
259950,0migration/27547-21fschecks_time19:00:072
259950,0migration/23615-21sh22:46:312
19150,0ktimersoftd/10-21swapper/121:15:581
179950,0migration/19423-21munin-node19:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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