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2026-03-22 - 02:00
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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 Mar 22, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
416803299583291,291cyclictest0-21swapper/421:02:5210
41680359950016,483cyclictest0-21swapper/522:38:5211
416807299495493,2cyclictest171814-21kworker/14:1+i915-unordered23:11:526
416803999484483,1cyclictest0-21swapper/623:11:5212
41680329948027,452cyclictest61-21ksoftirqd/419:31:5210
416802099476446,30cyclictest0-21swapper/121:00:521
416803999472471,1cyclictest119758-21kworker/6:2+i915-unordered22:30:5212
416802099467465,1cyclictest107681-21kworker/1:0+i915-unordered21:53:521
4168059994591,457cyclictest0-21swapper/1123:11:523
4168050994560,59cyclictest0-21swapper/921:00:3415
416802899452450,2cyclictest69750irq/159-i91523:11:529
416807299451450,1cyclictest0-21swapper/1422:30:526
4168059994510,0cyclictest0-21swapper/1100:01:513
41680239945121,30cyclictest0-21swapper/222:01:138
416802899447446,1cyclictest69750irq/159-i91500:01:519
416807299446446,0cyclictest0-21swapper/1421:05:526
416807299446446,0cyclictest0-21swapper/1421:05:526
41680209944624,30cyclictest0-21swapper/121:48:521
4168059994454,440cyclictest0-21swapper/1122:30:523
41680329944525,419cyclictest0-21swapper/422:20:1410
41680329944523,30cyclictest0-21swapper/422:07:5110
416805999444443,1cyclictest0-21swapper/1121:00:523
41680329944425,30cyclictest61-21ksoftirqd/420:12:5210
41680429944318,29cyclictest0-21swapper/719:22:1313
41680209944321,30cyclictest0-21swapper/119:32:521
416807699440438,2cyclictest0-21swapper/1521:47:527
416805999440439,1cyclictest0-21swapper/1121:05:523
416805999440439,1cyclictest0-21swapper/1121:05:523
41680429944015,29cyclictest0-21swapper/721:40:3513
41680429944014,29cyclictest0-21swapper/722:58:1413
416802099440438,2cyclictest0-21swapper/119:26:521
4168059994390,438cyclictest0-21swapper/1100:36:513
41680429943917,28cyclictest0-21swapper/721:16:3413
41680429943914,28cyclictest0-21swapper/720:39:3513
41680429943912,30cyclictest0-21swapper/722:01:3413
41680239943914,30cyclictest0-21swapper/220:46:148
416802099439438,1cyclictest0-21swapper/122:56:521
41680429943814,28cyclictest0-21swapper/719:32:3613
41680429943812,28cyclictest0-21swapper/720:41:3513
41680429943811,30cyclictest0-21swapper/719:58:3613
416802899438437,1cyclictest69750irq/159-i91522:30:529
416802899438437,1cyclictest69750irq/159-i91521:00:529
41680239943814,30cyclictest0-21swapper/220:12:148
416805999437436,1cyclictest0-21swapper/1122:56:523
4168059994370,436cyclictest0-21swapper/1119:26:523
41680429943713,28cyclictest0-21swapper/720:26:3313
41680429943712,29cyclictest0-21swapper/719:49:3413
41680239943714,30cyclictest0-21swapper/220:01:148
41680239943713,30cyclictest0-21swapper/223:42:128
41680509943610,29cyclictest0-21swapper/919:55:1415
41680429943610,29cyclictest0-21swapper/700:26:3513
416803999436436,0cyclictest67358-21kworker/6:0+i915-unordered21:05:5212
416803999436436,0cyclictest67358-21kworker/6:0+i915-unordered21:05:5212
41680359943611,30cyclictest0-21swapper/500:05:1311
416805999434431,3cyclictest123817-21kworker/11:2+i915-unordered23:20:513
41680359943415,416cyclictest0-21swapper/523:40:1311
41680239943414,29cyclictest0-21swapper/219:42:138
416805999433432,1cyclictest0-21swapper/1121:53:523
41680509943310,29cyclictest0-21swapper/923:25:1315
416802899433433,0cyclictest69750irq/159-i91521:05:529
416802899433433,0cyclictest69750irq/159-i91521:05:529
416802899432431,1cyclictest69750irq/159-i91500:36:519
4168050994303,30cyclictest0-21swapper/923:07:1515
4168035994302,30cyclictest0-21swapper/522:22:1311
416802899430429,1cyclictest69750irq/159-i91522:56:529
416802899430429,1cyclictest69750irq/159-i91519:26:529
4168059994294,424cyclictest0-21swapper/1122:38:523
4168050994296,30cyclictest0-21swapper/900:32:3615
4168050994294,30cyclictest0-21swapper/921:15:3515
4168050994292,30cyclictest0-21swapper/921:53:3515
4168035994295,29cyclictest0-21swapper/519:18:1311
4168050994281,30cyclictest0-21swapper/920:50:3515
4168023994281,29cyclictest0-21swapper/223:56:148
4168023994281,29cyclictest0-21swapper/223:56:148
41680429942730,395cyclictest0-21swapper/721:10:1413
41680429942730,395cyclictest0-21swapper/721:10:1413
4168032994276,420cyclictest0-21swapper/400:17:1410
416802899427426,1cyclictest69750irq/159-i91521:53:529
4168023994271,29cyclictest0-21swapper/200:04:148
4168023994270,30cyclictest0-21swapper/219:34:358
41680769942612,413cyclictest0-21swapper/1521:37:527
416805999426425,1cyclictest1818-21snmpd00:12:483
416805999426424,2cyclictest0-21swapper/1119:20:523
41680359942610,30cyclictest0-21swapper/522:59:4711
4168035994260,424cyclictest0-21swapper/500:36:1411
4168035994260,29cyclictest0-21swapper/523:48:3411
4168035994260,29cyclictest0-21swapper/523:48:3411
416802899426425,1cyclictest69750irq/159-i91523:20:519
416805999425424,0cyclictest0-21swapper/1119:17:523
416803599425422,2cyclictest58324-21kworker/u64:7+events_unbound21:43:5211
41680359942526,398cyclictest0-21swapper/523:34:1411
4168035994252,28cyclictest0-21swapper/500:27:3711
4168035994251,29cyclictest0-21swapper/520:34:3611
41680359942427,396cyclictest0-21swapper/521:09:3611
41680359942427,396cyclictest0-21swapper/521:09:3611
41680359942426,397cyclictest0-21swapper/520:53:3611
41680359942426,397cyclictest0-21swapper/520:09:1311
41680359942426,397cyclictest0-21swapper/519:54:3311
4168035994240,26cyclictest0-21swapper/520:23:1411
4168032994240,26cyclictest0-21swapper/422:55:1210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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