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2026-04-30 - 02:31
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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 Apr 30, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2058323934,0sleep20-21swapper/219:20:582
2062523526,0sleep10-21swapper/119:21:251
2052823127,0sleep30-21swapper/319:20:193
2031323127,0sleep00-21swapper/019:17:470
20703991010,0cyclictest3524-21snmpd00:47:580
4160,0ktimersoftd/011741-21latency_hist00:36:280
339960,0migration/312541-21sh00:38:373
29815060,0irq/29-eth0-tx-13851-21munin-node20:01:520
29805060,0irq/28-eth0-rx-15817-21sadc22:11:283
207039966,0cyclictest0-21swapper/021:56:400
149960,0migration/04595-21latency_hist23:01:290
149960,0migration/02190-21sh22:55:520
149960,0migration/015439-21sh22:10:270
149960,0migration/01527-21kthreadcore19:51:460
149960,0migration/014630-21fschecks_time00:41:410
8305050,0irq/26-0000:00:6791-21cut23:01:452
8305050,0irq/26-0000:00:15943-21kthreadcore00:11:462
4150,0ktimersoftd/00-21swapper/023:10:470
339950,0migration/33868-21fschecks_count00:31:423
339950,0migration/330693-21kthreadcore19:26:463
339950,0migration/32973-21kthreadcore20:36:463
339950,0migration/328741-21kthreadcore23:51:463
339950,0migration/32750-21sh22:56:453
339950,0migration/327189-21fschecks_time22:51:413
339950,0migration/327186-21kthreadcore00:21:463
339950,0migration/326942-21needreboot20:06:473
339950,0migration/326733-21fschecks_count23:21:413
339950,0migration/325346-21taskset23:20:093
339950,0migration/320971-21taskset20:51:053
339950,0migration/319126-21kernelversion21:31:443
339950,0migration/317966-21fschecks_count19:41:423
339950,0migration/316038-21missed_timers19:36:473
339950,0migration/315656-21kthreadcore20:01:443
339950,0migration/311585-21munin-node22:01:493
339950,0migration/310968-21fschecks_count20:21:433
339950,0migration/310913-21munin-node23:01:473
339950,0migration/310073-21taskset21:03:283
329950,0watchdog/328275-21aten_r1power_en20:11:393
329950,0watchdog/30-21swapper/300:49:563
29815050,0irq/29-eth0-tx-27897-21if_eth122:21:442
29815050,0irq/29-eth0-tx-26917-21irqrtprio23:51:452
29815050,0irq/29-eth0-tx-24967-21munin-node00:21:432
29815050,0irq/29-eth0-tx-23842-21ssh23:47:352
29815050,0irq/29-eth0-tx-23460-21ssh00:49:292
29815050,0irq/29-eth0-tx-14947-21tr21:46:472
29815050,0irq/29-eth0-tx-14142-21ssh23:39:592
29815050,0irq/29-eth0-tx-0-21swapper/223:10:332
29815050,0irq/29-eth0-tx-0-21swapper/222:48:272
29815050,0irq/29-eth0-tx-0-21swapper/200:41:532
29815050,0irq/29-eth0-tx-0-21swapper/200:39:592
29815050,0irq/29-eth0-tx-0-21swapper/019:41:390
29805050,0irq/28-eth0-rx-5187-21awk22:31:413
29805050,0irq/28-eth0-rx-22884-21ssh23:45:303
29805050,0irq/28-eth0-rx-18913-21kthreadcore00:11:463
29805050,0irq/28-eth0-rx-16057-21ssh21:28:383
29805050,0irq/28-eth0-rx-14646-21ssh23:10:043
29805050,0irq/28-eth0-rx-10685-21sh21:44:303
29805050,0irq/28-eth0-rx-0-21swapper/323:47:513
29805050,0irq/28-eth0-rx-0-21swapper/323:38:193
29805050,0irq/28-eth0-rx-0-21swapper/323:11:373
29805050,0irq/28-eth0-rx-0-21swapper/322:48:063
29805050,0irq/28-eth0-rx-0-21swapper/322:45:033
29805050,0irq/28-eth0-rx-0-21swapper/321:56:463
29805050,0irq/28-eth0-rx-0-21swapper/321:47:343
29805050,0irq/28-eth0-rx-0-21swapper/300:41:463
29805050,0irq/28-eth0-rx-0-21swapper/300:31:213
29805050,0irq/28-eth0-rx-0-21swapper/300:01:413
259950,0migration/228631-21kthreadcore22:51:452
259950,0migration/22797-21latency_hist19:31:272
259950,0migration/219754-21munin-node20:01:462
249950,0watchdog/20-21swapper/221:57:472
249950,0watchdog/20-21swapper/220:16:472
207059950,0cyclictest0-21swapper/221:54:482
207049955,0cyclictest0-21swapper/121:42:081
207049954,0cyclictest3524-21snmpd21:40:381
207049950,0cyclictest0-21swapper/122:41:151
207049950,0cyclictest0-21swapper/122:32:541
207049950,0cyclictest0-21swapper/122:24:331
207049950,0cyclictest0-21swapper/121:52:511
207049950,0cyclictest0-21swapper/119:26:421
207049950,0cyclictest0-21swapper/100:06:041
207039955,0cyclictest0-21swapper/023:21:480
207039955,0cyclictest0-21swapper/021:11:540
207039950,0cyclictest0-21swapper/023:53:200
179950,0migration/17396-21kthreadcore00:31:471
179950,0migration/15977-21sh23:01:441
179950,0migration/15329-21hddtemp_smartct23:31:431
179950,0migration/12672-21runrttasks21:56:481
179950,0migration/125796-21taskset22:19:331
179950,0migration/124150-21sh23:16:431
179950,0migration/119402-21kthreadcore00:11:471
179950,0migration/117301-21latency_hist19:41:271
179950,0migration/115144-21kthreadcore19:36:461
179950,0migration/113083-21taskset23:36:581
169950,0watchdog/124740-21cut20:51:471
169950,0watchdog/115459-21aten_r1power_cu23:11:401
149950,0migration/08999-21kthreadcore23:01:460
149950,0migration/06589-21latency_hist19:56:280
149950,0migration/04181-21sh22:29:420
149950,0migration/03955-21fschecks_time20:16:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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