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2026-07-23 - 02:57
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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 Thu Jul 23, 2026 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29188879958115,45cyclictest0-21swapper/320:12:049
29188879958115,45cyclictest0-21swapper/320:12:049
2918887995609,550cyclictest0-21swapper/320:04:049
2918882995158,29cyclictest0-21swapper/220:04:048
29188829949618,477cyclictest0-21swapper/223:14:038
291890199490490,0cyclictest0-21swapper/719:35:0413
291891499473471,1cyclictest69750irq/159-i91520:04:042
29188959947024,30cyclictest0-21swapper/520:57:2611
291892599469468,0cyclictest3048885-21kworker/12:2+i915-unordered21:54:034
29188959946921,30cyclictest0-21swapper/500:32:2611
29188959946720,29cyclictest0-21swapper/522:14:2511
29188959946719,29cyclictest0-21swapper/520:24:2711
29188959946718,30cyclictest0-21swapper/520:35:2611
291889199467467,0cyclictest0-21swapper/421:54:0310
29189069946521,28cyclictest0-21swapper/800:30:4514
29188879946517,29cyclictest0-21swapper/320:55:469
29188879946416,29cyclictest0-21swapper/321:35:259
29189149946316,30cyclictest0-21swapper/1019:43:042
29188879946316,29cyclictest0-21swapper/322:46:469
29188879946314,29cyclictest0-21swapper/323:48:259
291893899462461,1cyclictest2927706-21kworker/15:0+i915-unordered19:35:047
29189069946221,29cyclictest0-21swapper/822:09:4714
29188879946217,28cyclictest0-21swapper/321:41:479
29188879946216,28cyclictest0-21swapper/300:27:469
2918929994610,460cyclictest0-21swapper/1300:13:585
29188989946115,29cyclictest2971002-21ntpq20:06:2412
29188989946115,29cyclictest2971002-21ntpq20:06:2412
29188879946114,30cyclictest0-21swapper/323:52:259
29188879946113,445cyclictest0-21swapper/320:49:259
29188879946112,30cyclictest0-21swapper/322:04:479
29189069946019,30cyclictest0-21swapper/819:22:2714
29189069946018,30cyclictest0-21swapper/820:22:4714
29189069946018,29cyclictest0-21swapper/821:05:4714
29188879946014,28cyclictest0-21swapper/321:00:259
29188879946013,445cyclictest0-21swapper/320:00:259
29188879946012,446cyclictest0-21swapper/322:28:479
29189069945922,30cyclictest0-21swapper/823:42:2614
29189069945912,28cyclictest0-21swapper/822:11:2614
29188879945912,29cyclictest0-21swapper/321:59:479
29188879945912,29cyclictest0-21swapper/320:10:259
29188879945912,29cyclictest0-21swapper/320:10:259
29189109945816,30cyclictest0-21swapper/920:07:4615
29189109945816,30cyclictest0-21swapper/920:07:4615
2918906994589,30cyclictest0-21swapper/822:18:2414
29189069945822,30cyclictest0-21swapper/821:47:2614
29189069945815,31cyclictest0-21swapper/821:42:4814
2918914994579,446cyclictest0-21swapper/1023:31:242
29189069945717,30cyclictest0-21swapper/819:46:4714
29189069945717,29cyclictest0-21swapper/822:50:4814
29189069945716,29cyclictest0-21swapper/822:02:4814
29189069945715,30cyclictest0-21swapper/822:59:4914
29189069945715,30cyclictest0-21swapper/822:59:4914
29188879945710,27cyclictest0-21swapper/300:03:469
29189069945617,30cyclictest0-21swapper/820:20:4614
2918914994556,30cyclictest0-21swapper/1019:56:242
2918895994559,28cyclictest0-21swapper/519:10:4811
291891499452451,1cyclictest69750irq/159-i91523:14:032
2918914994480,445cyclictest0-21swapper/1022:36:242
291888299448446,2cyclictest3057052-21kworker/2:2+i915-unordered22:02:038
29188989944725,421cyclictest0-21swapper/619:46:2512
291888299447445,1cyclictest3160505-21kworker/2:2+i915-unordered00:29:038
291891499446445,1cyclictest0-21swapper/1022:34:162
2918898994460,0cyclictest0-21swapper/620:57:4912
29189149944525,419cyclictest0-21swapper/1019:36:262
2918906994453,29cyclictest0-21swapper/823:30:2514
291892999444444,0cyclictest0-21swapper/1322:02:155
29188989944422,421cyclictest0-21swapper/623:41:4612
29188879944425,418cyclictest0-21swapper/322:58:259
29188879944425,418cyclictest0-21swapper/322:58:259
291892099443438,4cyclictest2959834-21kworker/11:1+i915-unordered20:12:043
291892099443438,4cyclictest2959834-21kworker/11:1+i915-unordered20:12:043
2918906994430,30cyclictest0-21swapper/822:44:2614
2918901994430,442cyclictest0-21swapper/722:25:0313
29188879944325,417cyclictest0-21swapper/323:38:269
291892099442440,2cyclictest3012591-21kworker/11:1+i915-unordered21:13:043
29189149944223,418cyclictest0-21swapper/1000:07:462
29189149944221,420cyclictest0-21swapper/1000:16:262
29189109944224,418cyclictest0-21swapper/919:13:2515
29189069944224,415cyclictest0-21swapper/820:11:2614
29189069944224,415cyclictest0-21swapper/820:11:2614
29188989944221,420cyclictest0-21swapper/622:16:2612
29188989944221,420cyclictest0-21swapper/619:38:2612
29189149944122,418cyclictest0-21swapper/1022:42:482
29189149944120,420cyclictest0-21swapper/1000:14:262
29189109944122,416cyclictest0-21swapper/920:46:2715
29189069944119,30cyclictest0-21swapper/822:35:4714
29188989944121,419cyclictest0-21swapper/623:22:4712
29188989944120,420cyclictest0-21swapper/619:42:2512
29188989944119,421cyclictest0-21swapper/623:02:2412
29188989944119,421cyclictest0-21swapper/623:02:2412
29189069944026,413cyclictest0-21swapper/800:14:4814
29188989944021,418cyclictest0-21swapper/622:00:2412
29188989944018,421cyclictest0-21swapper/622:54:4712
29188989944018,421cyclictest0-21swapper/622:54:4712
291889199440437,2cyclictest2951700-21kworker/u64:0+events_unbound19:50:0410
29188769944018,421cyclictest0-21swapper/020:28:480
291892599439438,0cyclictest0-21swapper/1219:50:044
29189149943922,416cyclictest0-21swapper/1022:25:032
29189149943921,417cyclictest0-21swapper/1020:10:482
29189149943921,417cyclictest0-21swapper/1020:10:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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