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2026-06-05 - 08:50
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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 Fri Jun 05, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1113325040,0sleep30-21swapper/319:23:153
1107023728,0sleep20-21swapper/219:22:302
1116723525,0sleep10-21swapper/119:23:371
1117622925,0sleep00-21swapper/019:23:440
339960,0migration/33918-21sh00:35:363
339960,0migration/328761-21sh22:20:003
339960,0migration/319380-21fschecks_time19:29:383
339960,0migration/318495-21sh21:56:353
339960,0migration/316560-21sh00:05:123
329960,0watchdog/326202-21kthreadcore00:49:453
29805060,0irq/28-eth0-rx-4516-21port_sshpriv22:24:473
29805060,0irq/28-eth0-rx-28771-21cut21:04:423
29805060,0irq/28-eth0-rx-13154-21port_sshpriv22:29:463
259960,0migration/224858-21kthreadcore21:24:432
179960,0migration/111869-21sh22:10:591
113109960,0cyclictest0-21swapper/222:04:352
113109960,0cyclictest0-21swapper/221:49:272
113099960,0cyclictest9741-21ssh23:05:121
8305050,0irq/26-0000:00:13618-21open_files23:44:472
339950,0migration/39014-21idleruntime19:44:393
339950,0migration/37107-21needreboot21:09:433
339950,0migration/36712-21kthreadcore20:49:433
339950,0migration/36530-21kthreadcore22:09:443
339950,0migration/34380-21kthreadcore19:39:423
339950,0migration/33151-21df_abs23:04:403
339950,0migration/331223-21kthreadcore20:19:443
339950,0migration/33035-21kthreadcore21:29:453
339950,0migration/329027-21kthreadcore23:54:443
339950,0migration/327890-21kthreadcore21:44:443
339950,0migration/327815-21kthreadcore23:34:443
339950,0migration/326795-21timerwakeupswit23:14:523
339950,0migration/324985-21kthreadcore00:29:453
339950,0migration/324150-21kernelversion20:39:423
339950,0migration/321278-21diskmemload00:45:433
339950,0migration/32050-21if_eth1.320:24:393
339950,0migration/320357-21irqcore20:59:413
339950,0migration/320179-21irqcore20:14:433
339950,0migration/319100-21kthreadcore21:19:443
339950,0migration/317277-21if_eth123:49:423
339950,0migration/315842-21sh23:49:263
339950,0migration/314092-21runrttasks23:29:383
339950,0migration/312599-21munin-node19:24:403
329950,0watchdog/39219-21ssh00:03:533
329950,0watchdog/314027-21grep22:14:413
329950,0watchdog/30-21swapper/323:40:093
329950,0watchdog/30-21swapper/321:24:373
29815050,0irq/29-eth0-tx-4526-21munin-node00:19:442
29815050,0irq/29-eth0-tx-4436-21munin-node20:04:430
29815050,0irq/29-eth0-tx-420-21munin-node22:44:412
29815050,0irq/29-eth0-tx-28323-21ssh00:32:342
29815050,0irq/29-eth0-tx-2760-21munin-node23:04:462
29815050,0irq/29-eth0-tx-22962-21tr23:14:442
29815050,0irq/29-eth0-tx-18386-21munin-node00:09:382
29815050,0irq/29-eth0-tx-16804-21latency_hist21:39:252
29815050,0irq/29-eth0-tx-11796-21cpuspeed_turbos23:09:392
29815050,0irq/29-eth0-tx-11736-21ntp_offset00:39:482
29815050,0irq/29-eth0-tx-0-21swapper/223:49:372
29815050,0irq/29-eth0-tx-0-21swapper/222:44:252
29815050,0irq/29-eth0-tx-0-21swapper/221:58:492
29815050,0irq/29-eth0-tx-0-21swapper/221:39:432
29805050,0irq/28-eth0-rx-7212-21kthreadcore00:39:453
29805050,0irq/28-eth0-rx-4292-21grep00:19:423
29805050,0irq/28-eth0-rx-3811-21kthreadcore22:44:443
29805050,0irq/28-eth0-rx-2355-21python22:04:503
29805050,0irq/28-eth0-rx-22008-21kthreadcore21:59:443
29805050,0irq/28-eth0-rx-19371-21smartctl00:09:413
29805050,0irq/28-eth0-rx-18622-21kthreadcore21:39:443
29805050,0irq/28-eth0-rx-15946-21ssh22:49:543
29805050,0irq/28-eth0-rx-12788-21munin-node23:09:443
29805050,0irq/28-eth0-rx-0-21swapper/323:20:303
29805050,0irq/28-eth0-rx-0-21swapper/322:40:523
29805050,0irq/28-eth0-rx-0-21swapper/300:28:163
259950,0migration/231823-21munin-node23:39:392
259950,0migration/231302-21kthreadcore21:04:432
259950,0migration/225158-21kthreadcore21:59:452
259950,0migration/224385-21kthreadcore22:19:442
259950,0migration/221753-21sh23:33:052
259950,0migration/214808-21kthreadcore19:24:422
259950,0migration/212053-21sh23:25:042
259950,0migration/212020-21kthreadcore22:29:442
249950,0watchdog/230039-21kthreadcore22:59:452
249950,0watchdog/222210-21cut20:14:442
179950,0migration/16330-21kthreadcore22:44:451
179950,0migration/1526-21sh23:59:051
179950,0migration/121573-21kthreadcore20:14:441
179950,0migration/113165-21kthreadcore23:09:441
179950,0migration/112966-21kthreadcore00:04:441
179950,0migration/112158-21aten_r1power_vo00:24:371
179950,0migration/111475-21latency_hist19:24:251
179950,0migration/11087-21kthreadcore23:19:441
179950,0migration/11067-21timerwakeupswit00:14:521
169950,0watchdog/19034-21tune2fs21:34:411
169950,0watchdog/130340-21ssh21:26:491
169950,0watchdog/119146-21kthreadcore21:19:451
149950,0migration/09520-21irqcore20:29:410
149950,0migration/07299-21kthreadcore23:24:440
149950,0migration/07044-21sh21:32:220
149950,0migration/05050-21kthreadcore20:24:410
149950,0migration/04836-21kthreadcore21:49:430
149950,0migration/026790-21kthreadcore23:54:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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