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2026-07-24 - 04:03
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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 Fri Jul 24, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31122259957438,535cyclictest0-21swapper/1422:40:026
3112178995619,0cyclictest0-21swapper/323:00:029
3112182995607,552cyclictest0-21swapper/419:58:0210
31122259955633,522cyclictest0-21swapper/1421:10:026
3112225995562,550cyclictest0-21swapper/1420:25:026
3112178995568,44cyclictest0-21swapper/320:18:029
31121939954423,520cyclictest88-21ksoftirqd/722:58:0213
311220299543541,2cyclictest3277789-21kworker/9:0+i915-unordered23:12:0115
311221799528526,2cyclictest3129784-21kworker/12:1+i915-unordered19:55:024
31121669952219,44cyclictest0-21swapper/023:43:010
311221799516514,2cyclictest3129784-21kworker/12:1+i915-unordered19:58:024
3112166995115,505cyclictest16-21ksoftirqd/022:59:020
31122259950515,489cyclictest0-21swapper/1420:57:026
311216999505504,1cyclictest0-21swapper/123:18:011
31121669950239,462cyclictest0-21swapper/019:55:020
311220799500498,2cyclictest3334071-21kworker/10:1+i915-unordered23:44:012
31121669949939,459cyclictest0-21swapper/022:03:020
3112169994966,490cyclictest0-21swapper/122:47:021
3112207994955,488cyclictest0-21swapper/1000:24:012
311220799494493,1cyclictest3290662-21kworker/10:1+i915-unordered22:52:022
3112225994901,488cyclictest0-21swapper/1420:27:026
31121669948925,463cyclictest0-21swapper/023:18:010
31121669948825,462cyclictest0-21swapper/020:13:020
3112166994875,0cyclictest0-21swapper/019:49:020
31121669948726,459cyclictest0-21swapper/022:40:020
311222999486486,0cyclictest3297810-21kworker/15:0+i915-unordered22:58:027
31121669948422,462cyclictest0-21swapper/021:55:020
31121669948321,461cyclictest0-21swapper/021:10:020
31121669948319,463cyclictest0-21swapper/020:25:020
311220799482480,1cyclictest3297743-21kworker/10:0+i915-unordered22:59:022
311222999481479,2cyclictest0-21swapper/1522:54:027
311216999477475,2cyclictest0-21swapper/120:13:021
311216699477477,0cyclictest0-21swapper/020:27:020
311216699477472,3cyclictest0-21swapper/022:32:020
3112202994760,59cyclictest0-21swapper/919:32:4415
31121669947613,462cyclictest0-21swapper/019:58:020
31121669947411,461cyclictest0-21swapper/020:55:020
311222999472472,0cyclictest0-21swapper/1523:43:017
311222999471470,1cyclictest3238362-21kworker/15:1+i915-unordered21:52:027
311216699471471,0cyclictest0-21swapper/020:18:020
311222999469467,1cyclictest3277829-21kworker/15:1+i915-unordered22:32:027
3112166994694,461cyclictest16-21ksoftirqd/020:57:020
31121669946910,0cyclictest0-21swapper/023:48:010
31122079946626,29cyclictest0-21swapper/1019:45:022
31121749946618,29cyclictest0-21swapper/222:11:248
31121749946517,30cyclictest0-21swapper/221:31:238
31121749946517,30cyclictest0-21swapper/221:31:238
311222999464464,0cyclictest0-21swapper/1522:03:027
311219799464464,0cyclictest69750irq/159-i91522:58:0214
31121749946417,29cyclictest0-21swapper/222:52:258
3112166994633,0cyclictest0-21swapper/000:32:010
31122259946220,29cyclictest0-21swapper/1419:25:576
3112174994619,29cyclictest0-21swapper/220:53:468
31121749946111,30cyclictest0-21swapper/223:46:448
31121789946010,30cyclictest0-21swapper/321:51:249
31122299945914,31cyclictest0-21swapper/1523:28:017
311219799459458,1cyclictest69750irq/159-i91522:54:0214
311219399459458,1cyclictest0-21swapper/719:17:0213
31121789945910,30cyclictest0-21swapper/323:31:239
31121789945910,29cyclictest0-21swapper/323:23:249
31122259945810,28cyclictest0-21swapper/1421:53:466
311219799458458,0cyclictest69750irq/159-i91519:33:0214
31121699945611,30cyclictest0-21swapper/123:14:011
31122299945514,30cyclictest0-21swapper/1522:12:017
3112202994555,30cyclictest0-21swapper/921:06:2315
311219799455451,2cyclictest69750irq/159-i91523:43:0114
311218999455454,1cyclictest3285742-21kworker/6:0+i915-unordered22:40:0212
31121699945413,30cyclictest0-21swapper/121:37:021
311216699453451,2cyclictest0-21swapper/023:12:010
3112169994528,30cyclictest0-21swapper/100:14:011
3112169994528,30cyclictest0-21swapper/100:14:011
311216699452451,1cyclictest0-21swapper/019:13:020
31122299945112,29cyclictest0-21swapper/1523:04:017
3112174994510,30cyclictest0-21swapper/219:34:238
3112202994502,30cyclictest0-21swapper/921:50:4715
3112202994500,30cyclictest0-21swapper/923:07:2315
3112202994500,30cyclictest0-21swapper/921:59:4615
3112178994500,30cyclictest0-21swapper/323:40:439
311216699450450,0cyclictest0-21swapper/019:17:020
3112225994490,30cyclictest0-21swapper/1422:48:236
3112217994490,448cyclictest0-21swapper/1219:18:364
3112202994490,29cyclictest0-21swapper/919:51:4615
3112202994480,30cyclictest0-21swapper/921:25:4715
3112202994480,30cyclictest0-21swapper/921:25:4715
3112178994480,30cyclictest0-21swapper/322:34:479
311222599447446,1cyclictest1818-21snmpd20:33:566
3112202994470,30cyclictest0-21swapper/923:54:2415
311218599447416,31cyclictest0-21swapper/520:55:0211
3112178994470,30cyclictest0-21swapper/320:05:459
3112229994466,29cyclictest0-21swapper/1521:28:027
3112229994466,29cyclictest0-21swapper/1521:28:027
31122259944625,420cyclictest0-21swapper/1421:12:256
311218299446446,0cyclictest0-21swapper/420:20:3810
3112169994463,30cyclictest0-21swapper/123:59:011
311216699446443,2cyclictest3316713-21kworker/u64:0+events_unbound23:30:010
31122259944524,420cyclictest0-21swapper/1422:59:456
31122259944426,417cyclictest0-21swapper/1421:30:246
31122259944426,417cyclictest0-21swapper/1421:30:246
31122259944425,418cyclictest0-21swapper/1423:39:466
31121939944421,422cyclictest0-21swapper/721:41:2413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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