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2026-06-18 - 03:45
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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 Jun 18, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1342024736,0sleep30-21swapper/319:20:323
2024124334,0sleep20-21swapper/219:24:152
2027123228,0sleep10-21swapper/119:24:381
1997222925,0sleep00-21swapper/019:21:050
339970,0migration/38453-21sh22:43:173
35160,0ktimersoftd/31218-21ssh00:10:523
339960,0migration/37126-21sh00:53:063
339960,0migration/330885-21sh23:35:003
339960,0migration/329207-21sh00:29:583
339960,0migration/32838-21pmu-power23:15:503
339960,0migration/324179-21sh23:49:053
339960,0migration/322962-21sh00:45:143
339960,0migration/319438-21sh00:22:033
339960,0migration/311490-21kthreadcore21:30:483
339960,0migration/310894-21sh00:17:163
329960,0watchdog/314394-21munin-node23:40:573
29815060,0irq/29-eth0-tx-6571-21munin-node20:45:480
29815060,0irq/29-eth0-tx-20964-21munin-node20:55:460
29805060,0irq/28-eth0-rx-26188-21iostat_ios23:50:463
29805060,0irq/28-eth0-rx-11299-21python22:05:503
204189965,0cyclictest17893-21grep21:35:422
204189960,0cyclictest0-21swapper/220:40:482
204169966,0cyclictest0-21swapper/022:40:410
149960,0migration/03231-21sh00:15:200
149960,0migration/013592-21aten2.4-expect20:05:410
4150,0ktimersoftd/00-21swapper/023:31:080
339950,0migration/39491-21taskset22:45:313
339950,0migration/38729-21kthreadcore21:05:493
339950,0migration/37088-21munin-node00:35:453
339950,0migration/36165-21sh22:23:233
339950,0migration/34377-21kthreadcore20:40:483
339950,0migration/33810-21munin-node19:35:473
339950,0migration/322002-21munin-node23:10:463
339950,0migration/320453-21kthreadcore20:30:453
339950,0migration/315440-21kthreadcore20:50:473
329950,0watchdog/37112-21fschecks_count20:45:403
329950,0watchdog/3502-21if_eth021:25:453
329950,0watchdog/324561-21iostat00:45:453
329950,0watchdog/311176-21interrupts00:00:453
329950,0watchdog/310344-21aten_r1power_po21:10:413
329950,0watchdog/30-21swapper/320:25:403
29815050,0irq/29-eth0-tx-9547-21munin-node22:45:402
29815050,0irq/29-eth0-tx-6412-21tr00:15:492
29815050,0irq/29-eth0-tx-4328-21kthreadcore22:40:472
29815050,0irq/29-eth0-tx-2942-21munin-node21:05:490
29815050,0irq/29-eth0-tx-24702-21cat23:30:462
29815050,0irq/29-eth0-tx-21973-21ssh00:25:442
29815050,0irq/29-eth0-tx-20960-21ssh22:12:442
29815050,0irq/29-eth0-tx-16326-21munin-node23:45:402
29815050,0irq/29-eth0-tx-0-21swapper/223:30:032
29815050,0irq/29-eth0-tx-0-21swapper/223:03:382
29815050,0irq/29-eth0-tx-0-21swapper/221:54:142
29815050,0irq/29-eth0-tx-0-21swapper/200:53:302
29815050,0irq/29-eth0-tx-0-21swapper/021:15:480
29815050,0irq/29-eth0-tx-0-21swapper/021:13:460
29815050,0irq/29-eth0-tx-0-21swapper/020:20:480
29805050,0irq/28-eth0-rx-7522-21grep21:45:483
29805050,0irq/28-eth0-rx-6191-21kthreadcore23:00:473
29805050,0irq/28-eth0-rx-29407-21kthreadcore21:40:483
29805050,0irq/28-eth0-rx-28950-21grep21:20:473
29805050,0irq/28-eth0-rx-23471-21irqcore22:15:453
29805050,0irq/28-eth0-rx-16770-21tr21:50:473
29805050,0irq/28-eth0-rx-15128-21if_err_eth123:25:453
29805050,0irq/28-eth0-rx-13522-40yum-updatesd-he23:24:483
29805050,0irq/28-eth0-rx-12794-21sh23:05:443
29805050,0irq/28-eth0-rx-0-21swapper/323:37:373
29805050,0irq/28-eth0-rx-0-21swapper/322:55:503
29805050,0irq/28-eth0-rx-0-21swapper/322:37:293
29805050,0irq/28-eth0-rx-0-21swapper/322:25:483
29805050,0irq/28-eth0-rx-0-21swapper/321:55:473
29805050,0irq/28-eth0-rx-0-21swapper/319:50:473
29805050,0irq/28-eth0-rx-0-21swapper/300:06:143
27150,0ktimersoftd/20-21swapper/223:56:082
259950,0migration/28229-21sh23:20:482
259950,0migration/232663-21kthreadcore00:30:482
259950,0migration/229450-21munin-node00:45:502
259950,0migration/22910-21processes23:15:502
259950,0migration/220993-21idleruntime21:55:442
259950,0migration/212419-21switchtime00:35:552
259950,0migration/21225-21munin-node00:10:532
259950,0migration/210132-21sh21:48:262
249950,0watchdog/226116-21if_eth1.223:50:452
204189955,0cyclictest31609-21diskmemload00:07:572
204189955,0cyclictest0-21swapper/222:01:592
204189954,0cyclictest0-21swapper/221:30:562
204189950,0cyclictest0-21swapper/222:35:252
204189950,0cyclictest0-21swapper/222:06:342
204179955,0cyclictest31609-21diskmemload22:51:181
204179955,0cyclictest0-21swapper/122:34:551
204179950,0cyclictest0-21swapper/123:07:231
204179950,0cyclictest0-21swapper/122:18:591
204179950,0cyclictest0-21swapper/121:43:591
204179950,0cyclictest0-21swapper/121:28:421
204179950,0cyclictest0-21swapper/100:11:241
204169955,0cyclictest0-21swapper/021:36:220
204169953,0cyclictest17934-21kworker/0:122:25:590
204169953,0cyclictest17934-21kworker/0:121:56:290
204169950,0cyclictest0-21swapper/023:26:240
204169950,0cyclictest0-21swapper/022:09:380
169950,0watchdog/17114-21fschecks_count20:45:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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