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2026-08-30 - 20:45
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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 rack0slot5.osadl.org (updated Sun Aug 30, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256233299656312,29cyclictest0-21swapper/522:43:5111
2562374995607,550cyclictest0-21swapper/1500:12:517
25623669954118,522cyclictest0-21swapper/1319:26:525
256235299518517,0cyclictest2651502-21kworker/10:0+i915-unordered20:52:522
256237099510480,30cyclictest0-21swapper/1419:56:526
256233899505504,1cyclictest2772732-21kworker/7:0+i915-unordered00:12:5113
256232299503503,0cyclictest0-21swapper/222:30:528
256232299502500,2cyclictest2486959-21kworker/2:3+i915-unordered19:05:528
256232299502500,2cyclictest2486959-21kworker/2:3+i915-unordered19:05:528
256231799498496,2cyclictest2708173-21kworker/1:0+i915-unordered22:07:521
256232299493463,30cyclictest0-21swapper/219:16:528
256235299489489,0cyclictest2700249-21kworker/10:2+i915-unordered22:30:522
256234699485484,1cyclictest0-21swapper/922:07:5215
2562366994813,60cyclictest2739501-21ntp_kernel_pll_22:40:135
256235299480479,1cyclictest2571098-21kworker/10:0+i915-unordered19:16:522
256237099479478,1cyclictest0-21swapper/1420:46:526
25623709947526,30cyclictest0-21swapper/1421:26:126
25623289947411,462cyclictest0-21swapper/422:07:5210
256232899472471,1cyclictest2712179-21kworker/4:1+i915-unordered22:27:5110
25623749947019,30cyclictest0-21swapper/1521:02:357
25623579947020,30cyclictest0-21swapper/1122:59:143
2562317994700,469cyclictest0-21swapper/121:32:521
25623749946918,30cyclictest0-21swapper/1522:22:347
25623579946918,30cyclictest0-21swapper/1123:49:133
25623369946923,29cyclictest0-21swapper/621:57:5112
25623749946820,29cyclictest0-21swapper/1522:53:147
25623749946819,30cyclictest0-21swapper/1522:44:147
25623749946818,30cyclictest0-21swapper/1500:09:137
25623369946818,29cyclictest0-21swapper/620:10:3612
25623579946722,29cyclictest0-21swapper/1100:03:343
25623579946718,29cyclictest0-21swapper/1121:28:133
25623579946619,30cyclictest0-21swapper/1119:37:133
25623579946615,30cyclictest0-21swapper/1122:51:333
25623389946620,30cyclictest0-21swapper/719:59:4713
25623579946514,30cyclictest0-21swapper/1120:38:373
25623579946514,30cyclictest0-21swapper/1120:03:373
2562328994654,460cyclictest0-21swapper/423:55:5110
256231799465463,2cyclictest2619353-21kworker/1:2+i915-unordered20:25:521
25623749946315,29cyclictest0-21swapper/1520:29:357
25623579946214,30cyclictest0-21swapper/1121:15:333
25623579946214,29cyclictest0-21swapper/1123:11:353
25623709946017,30cyclictest0-21swapper/1422:46:516
256236299460459,1cyclictest69750irq/159-i91522:07:524
25623529945919,29cyclictest0-21swapper/1021:19:472
25623369945910,30cyclictest0-21swapper/600:31:3612
25623369945910,30cyclictest0-21swapper/600:31:3612
256236299458457,1cyclictest69750irq/159-i91522:27:514
256235299457456,1cyclictest0-21swapper/1019:05:522
256235299457456,1cyclictest0-21swapper/1019:05:522
256232899453451,1cyclictest0-21swapper/420:52:5210
256232499453453,0cyclictest2792795-21kworker/3:0+i915-unordered23:48:519
256236299452452,0cyclictest69750irq/159-i91523:55:514
2562357994523,29cyclictest0-21swapper/1119:11:143
2562357994523,29cyclictest0-21swapper/1119:11:143
2562352994520,1cyclictest0-21swapper/1020:55:132
256234699452451,1cyclictest0-21swapper/920:25:5215
256233699452449,3cyclictest1818-21snmpd22:32:2512
2562317994520,3cyclictest0-21swapper/119:58:271
256233299451450,1cyclictest0-21swapper/522:13:5211
256232899451450,1cyclictest0-21swapper/422:13:5210
2562374994490,29cyclictest0-21swapper/1519:54:157
2562357994490,29cyclictest0-21swapper/1119:17:343
256232899449448,1cyclictest0-21swapper/421:11:5210
256232899447446,1cyclictest0-21swapper/423:27:5110
256231399447447,0cyclictest0-21swapper/023:55:510
2562366994460,27cyclictest0-21swapper/1322:27:365
256234399446445,1cyclictest1818-21snmpd23:56:2414
25623749944526,416cyclictest0-21swapper/1523:10:357
25623669944526,418cyclictest0-21swapper/1323:13:145
25623669944526,418cyclictest0-21swapper/1321:39:375
25623669944526,418cyclictest0-21swapper/1319:46:135
25623669944526,418cyclictest0-21swapper/1300:00:355
25623669944525,419cyclictest0-21swapper/1321:01:145
256237499444444,0cyclictest0-21swapper/1523:56:247
25623709944422,421cyclictest2586538-21find19:30:146
25623669944426,417cyclictest0-21swapper/1322:34:375
25623669944425,418cyclictest0-21swapper/1323:47:355
25623669944425,418cyclictest0-21swapper/1320:38:145
25623669944425,418cyclictest0-21swapper/1320:18:375
25623669944324,418cyclictest0-21swapper/1323:23:365
25623669944324,418cyclictest0-21swapper/1321:55:335
25623669944324,418cyclictest0-21swapper/1319:53:145
25623669944324,418cyclictest0-21swapper/1300:10:355
25623579944323,418cyclictest0-21swapper/1100:13:363
25623669944225,417cyclictest0-21swapper/1320:58:135
25623669944225,415cyclictest0-21swapper/1322:38:355
25623669944223,418cyclictest0-21swapper/1322:48:155
25623669944222,419cyclictest0-21swapper/1321:23:135
25623669944221,420cyclictest0-21swapper/1321:48:375
25623669944221,420cyclictest0-21swapper/1321:48:375
2562362994420,24cyclictest0-21swapper/1219:51:144
25623579944221,420cyclictest0-21swapper/1100:26:363
25623579944221,419cyclictest0-21swapper/1119:27:343
25623709944119,421cyclictest0-21swapper/1419:35:136
25623669944122,418cyclictest0-21swapper/1323:58:355
25623669944122,418cyclictest0-21swapper/1319:32:355
25623669944121,419cyclictest0-21swapper/1321:11:135
25623669944021,418cyclictest0-21swapper/1322:54:345
25623669944021,418cyclictest0-21swapper/1319:58:145
25623669944020,419cyclictest0-21swapper/1322:08:355
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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