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2026-07-21 - 22:30
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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 Jul 21, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2847200995229,512cyclictest0-21swapper/100:10:071
2847205995170,516cyclictest0-21swapper/222:45:078
28471969951629,29cyclictest0-21swapper/019:40:070
2847219995060,505cyclictest0-21swapper/600:19:0712
284724599499497,2cyclictest0-21swapper/1221:27:074
284721599496496,0cyclictest3016713-21kworker/5:0+i915-unordered23:29:0711
284720599495493,1cyclictest3040869-21kworker/2:2+i915-unordered23:08:078
2847234994944,489cyclictest0-21swapper/1020:13:072
2847234994944,489cyclictest0-21swapper/1020:13:072
284724999492492,0cyclictest0-21swapper/1323:29:075
284719699491430,30cyclictest0-21swapper/000:12:510
284723499488487,1cyclictest0-21swapper/1022:09:072
284723499487486,1cyclictest0-21swapper/1023:08:072
284720099486486,0cyclictest0-21swapper/121:14:071
28472009948112,59cyclictest0-21swapper/121:56:021
284724599480479,0cyclictest2850971-21kworker/12:0+i915-unordered19:34:074
2847196994793,0cyclictest0-21swapper/022:45:070
284725299478477,1cyclictest3101249-21kworker/14:1+i915-unordered00:19:076
284722699477475,2cyclictest69750irq/159-i91523:08:0714
28472429947426,28cyclictest0-21swapper/1123:06:503
28472429947425,29cyclictest0-21swapper/1119:45:303
28472299947426,29cyclictest0-21swapper/921:32:3015
284720099474473,1cyclictest0-21swapper/120:22:071
28472429947327,29cyclictest0-21swapper/1122:00:293
28472299947325,29cyclictest0-21swapper/922:26:5315
28472429947225,29cyclictest0-21swapper/1119:23:503
284720599470469,1cyclictest2904114-21kworker/2:2+i915-unordered20:13:078
284720599470469,1cyclictest2904114-21kworker/2:2+i915-unordered20:13:078
2847196994703,0cyclictest0-21swapper/021:27:070
28471969946922,29cyclictest0-21swapper/019:20:490
284721199468467,1cyclictest2936457-21kworker/4:0+i915-unordered21:27:0710
28471969946822,30cyclictest0-21swapper/022:40:520
28472089946616,35cyclictest0-21swapper/323:36:299
284720599466464,2cyclictest2992567-21kworker/2:0+i915-unordered22:09:078
28471969946519,29cyclictest0-21swapper/020:47:520
28471969946215,30cyclictest0-21swapper/023:50:300
28472529946111,30cyclictest0-21swapper/1423:43:286
28472529945910,447cyclictest0-21swapper/1419:49:286
284719699458399,30cyclictest0-21swapper/023:34:300
28472529945713,30cyclictest0-21swapper/1421:52:076
28471969945714,29cyclictest0-21swapper/000:08:070
284725799456455,1cyclictest1818-21snmpd19:54:417
2847229994566,29cyclictest0-21swapper/922:23:3015
28472299945424,429cyclictest0-21swapper/919:31:3115
284721999454452,1cyclictest2856829-21kworker/6:2+i915-unordered19:40:0712
2847196994547,30cyclictest0-21swapper/021:33:510
2847252994534,28cyclictest0-21swapper/1419:45:516
28472119945312,29cyclictest0-21swapper/423:00:0710
28472119945312,29cyclictest0-21swapper/423:00:0710
2847252994520,30cyclictest0-21swapper/1423:00:526
2847252994520,30cyclictest0-21swapper/1423:00:526
284719699452452,0cyclictest0-21swapper/021:06:190
2847224994500,449cyclictest0-21swapper/721:06:1913
284719699450420,30cyclictest0-21swapper/000:24:510
28471969945026,30cyclictest0-21swapper/019:47:290
2847252994490,30cyclictest0-21swapper/1420:23:526
2847229994490,30cyclictest0-21swapper/922:42:3015
2847229994490,30cyclictest0-21swapper/921:50:2915
2847229994490,30cyclictest0-21swapper/919:56:4915
284722499449448,1cyclictest0-21swapper/721:24:0713
284721199449449,0cyclictest0-21swapper/419:34:0710
2847200994493,30cyclictest0-21swapper/122:37:071
284719699448447,1cyclictest0-21swapper/023:09:070
28472299944726,419cyclictest0-21swapper/900:08:2915
28472299944625,420cyclictest0-21swapper/920:08:5215
28472299944625,420cyclictest0-21swapper/920:08:5215
28472299944624,419cyclictest0-21swapper/922:01:5215
28472429944526,417cyclictest0-21swapper/1100:19:513
28472299944525,418cyclictest0-21swapper/920:32:4915
28472299944524,420cyclictest0-21swapper/923:40:5015
2847229994450,29cyclictest0-21swapper/923:47:5115
28472089944526,418cyclictest0-21swapper/321:21:549
28472429944423,418cyclictest0-21swapper/1119:31:513
28472429944422,421cyclictest0-21swapper/1123:31:523
284723499444442,1cyclictest2964483-21kworker/10:1+i915-unordered21:34:072
28472299944425,417cyclictest0-21swapper/923:17:0715
28472089944425,419cyclictest0-21swapper/319:54:299
28472009944424,419cyclictest0-21swapper/121:16:291
28471969944425,418cyclictest0-21swapper/020:41:290
28472429944323,419cyclictest0-21swapper/1122:36:523
28472349944321,421cyclictest0-21swapper/1020:24:282
28472299944323,418cyclictest0-21swapper/920:55:5215
28472299944322,418cyclictest0-21swapper/921:44:5315
28472089944324,418cyclictest0-21swapper/323:11:519
28472089944321,421cyclictest0-21swapper/320:22:529
28472349944221,420cyclictest0-21swapper/1020:41:522
28472349944220,421cyclictest0-21swapper/1022:44:512
28472349944218,423cyclictest0-21swapper/1021:00:302
28472089944222,419cyclictest0-21swapper/321:02:309
28472089944222,419cyclictest0-21swapper/300:01:539
28472089944220,421cyclictest0-21swapper/321:32:529
28472089944220,421cyclictest0-21swapper/300:15:499
28472579944127,413cyclictest0-21swapper/1519:38:077
28472299944121,419cyclictest0-21swapper/922:38:0715
284721999441411,30cyclictest0-21swapper/623:09:0712
28472089944123,417cyclictest0-21swapper/321:27:499
28472089944122,418cyclictest0-21swapper/323:28:529
28472089944122,418cyclictest0-21swapper/321:51:519
28472089944122,418cyclictest0-21swapper/321:10:509
28472089944121,419cyclictest0-21swapper/320:59:529
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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