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2025-12-16 - 03:37
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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 rack0slot5.osadl.org (updated Tue Dec 16, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35735169949219,59cyclictest0-21swapper/721:41:5413
35734919947123,29cyclictest0-21swapper/021:57:160
35735439946620,29cyclictest0-21swapper/1322:18:405
35735439946620,29cyclictest0-21swapper/1322:18:405
35735169946518,28cyclictest0-21swapper/721:58:3913
35734919946317,30cyclictest0-21swapper/022:11:370
35734919946317,30cyclictest0-21swapper/022:11:370
35734919946315,29cyclictest0-21swapper/022:32:170
357355099462456,5cyclictest1802-21snmpd21:44:067
35734919946120,29cyclictest0-21swapper/023:57:540
35735169946010,28cyclictest0-21swapper/719:45:1813
357352499459456,2cyclictest3715005-21kworker/9:2+events22:14:5415
357352499459456,2cyclictest3715005-21kworker/9:2+events22:14:5415
3573505994552,29cyclictest0-21swapper/400:20:1710
3573547994546,29cyclictest0-21swapper/1400:19:186
3573547994539,30cyclictest0-21swapper/1421:03:546
3573547994535,29cyclictest0-21swapper/1423:38:406
35735059945310,29cyclictest0-21swapper/422:05:5410
3573547994525,30cyclictest0-21swapper/1423:18:166
3573491994527,29cyclictest0-21swapper/020:36:370
3573547994516,30cyclictest0-21swapper/1420:53:546
3573505994500,29cyclictest0-21swapper/420:50:1710
3573516994490,30cyclictest0-21swapper/723:32:1613
357352199448445,2cyclictest0-21swapper/822:22:5514
357352199448445,2cyclictest0-21swapper/822:22:5514
3573516994481,28cyclictest0-21swapper/720:27:1613
357353999447442,3cyclictest3710762-21kworker/u64:1+events_unbound22:22:554
357353999447442,3cyclictest3710762-21kworker/u64:1+events_unbound22:22:554
357352199447445,1cyclictest3627301-21kworker/8:3+events_freezable_pwr_efficient20:34:5414
3573516994470,30cyclictest0-21swapper/723:15:1813
35734919944723,28cyclictest0-21swapper/019:32:180
35735439944627,418cyclictest0-21swapper/1321:35:405
35735249944626,419cyclictest0-21swapper/923:55:1715
35735169944621,30cyclictest0-21swapper/721:36:3813
3573543994450,27cyclictest0-21swapper/1322:08:165
35735399944524,420cyclictest0-21swapper/1222:39:414
357352499445442,2cyclictest3831417-21kworker/9:1+events00:34:5415
3573516994450,30cyclictest0-21swapper/723:41:3813
357351099445443,1cyclictest0-21swapper/522:22:5511
357351099445443,1cyclictest0-21swapper/522:22:5511
35735439944424,419cyclictest0-21swapper/1320:17:175
357353999444441,2cyclictest3598259-21kworker/u64:2+events_unbound20:34:544
3573505994444,29cyclictest0-21swapper/400:10:5410
35735059944423,420cyclictest0-21swapper/422:37:1610
35735059944423,420cyclictest0-21swapper/420:10:1810
3573491994442,30cyclictest0-21swapper/000:36:400
35735479944321,421cyclictest0-21swapper/1423:56:166
3573547994430,30cyclictest0-21swapper/1420:23:546
357354399443441,1cyclictest3835412-21kworker/13:0+i915-unordered00:39:385
357353999443440,2cyclictest3710767-21kworker/u64:11+events_unbound22:04:544
357351699443440,2cyclictest3626367-21kworker/u64:10+events_unbound20:44:5413
35735169944326,417cyclictest0-21swapper/723:13:1513
357350299443439,3cyclictest0-21swapper/322:22:559
357350299443439,3cyclictest0-21swapper/322:22:559
35735439944223,418cyclictest0-21swapper/1319:53:175
35735439944222,419cyclictest0-21swapper/1300:23:375
35735249944219,30cyclictest0-21swapper/920:36:5415
357351699442440,0cyclictest0-21swapper/722:22:5513
357351699442440,0cyclictest0-21swapper/722:22:5513
357351699442439,2cyclictest3678698-21kworker/u64:7+events_unbound21:24:5413
35735059944221,420cyclictest0-21swapper/420:27:3710
357350299442439,3cyclictest3670831-21kworker/3:1+pm21:33:519
35734919944225,416cyclictest0-21swapper/020:33:400
3573543994410,24cyclictest0-21swapper/1320:58:165
35735169944123,416cyclictest0-21swapper/722:49:1613
3573516994410,30cyclictest0-21swapper/722:09:4913
35735059944119,421cyclictest0-21swapper/422:28:1610
35735439944023,416cyclictest0-21swapper/1300:13:375
35735439944022,417cyclictest0-21swapper/1300:09:395
35735439944021,418cyclictest0-21swapper/1320:14:375
35735439944020,419cyclictest0-21swapper/1321:53:395
35735439944018,421cyclictest0-21swapper/1319:58:165
357352499440437,2cyclictest3755042-21kworker/9:0+events22:54:5415
357352499440437,2cyclictest3602409-21kworker/9:2+events19:44:5415
35735249944018,421cyclictest0-21swapper/923:30:1715
35735479943924,414cyclictest0-21swapper/1400:34:386
35735059943918,420cyclictest0-21swapper/422:00:1810
35734959943925,414cyclictest0-21swapper/100:16:541
357354799438435,2cyclictest3626365-21kworker/u64:6+events_unbound20:14:546
35735169943818,418cyclictest0-21swapper/721:02:3713
357354399437436,1cyclictest0-21swapper/1322:49:505
357354399437435,1cyclictest0-21swapper/1321:30:545
357350599437435,1cyclictest3751258-21kworker/4:1+i915-unordered23:13:3910
35735479943621,414cyclictest0-21swapper/1421:32:546
357354399436435,1cyclictest0-21swapper/1321:26:545
357354399436435,1cyclictest0-21swapper/1321:09:495
357354399436435,1cyclictest0-21swapper/1300:26:545
357354399436431,3cyclictest0-21swapper/1322:22:555
357354399436431,3cyclictest0-21swapper/1322:22:555
35735249943615,420cyclictest0-21swapper/923:48:1715
35735149943619,416cyclictest0-21swapper/620:14:5012
35735479943514,420cyclictest0-21swapper/1423:27:376
357349999435435,0cyclictest3761859-21kworker/2:1+pm23:21:288
35735479943415,418cyclictest0-21swapper/1423:45:376
35735479943414,419cyclictest0-21swapper/1422:24:396
35735479943414,419cyclictest0-21swapper/1422:24:396
35735479943414,419cyclictest0-21swapper/1400:03:176
35735399943415,418cyclictest0-21swapper/1221:45:174
35735299943418,415cyclictest0-21swapper/1022:40:542
35735249943414,419cyclictest0-21swapper/900:01:1515
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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