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2026-01-10 - 11:28
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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 Sat Jan 10, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3783259956125,535cyclictest0-21swapper/1223:12:074
3782749955215,536cyclictest0-21swapper/022:10:070
3783259953918,520cyclictest0-21swapper/1223:23:074
37832799534532,2cyclictest577580-21kworker/13:2+i915-unordered23:13:075
378280995187,510cyclictest0-21swapper/220:57:088
378280995187,510cyclictest0-21swapper/220:57:088
3783209951122,27cyclictest0-21swapper/1121:50:073
37827499511510,1cyclictest0-21swapper/020:35:080
378336994980,497cyclictest0-21swapper/1522:48:077
3783259949222,58cyclictest0-21swapper/1223:25:074
3783209949012,439cyclictest0-21swapper/1120:28:083
378320994863,44cyclictest0-21swapper/1121:46:073
3783209948422,460cyclictest0-21swapper/1123:12:073
3783209947626,28cyclictest0-21swapper/1122:36:283
3783259947525,30cyclictest0-21swapper/1219:39:304
3783259947525,30cyclictest0-21swapper/1200:34:314
3783209947432,441cyclictest0-21swapper/1121:08:083
3783209947432,441cyclictest0-21swapper/1121:08:083
3782789947325,30cyclictest0-21swapper/123:55:521
3783009947222,29cyclictest0-21swapper/723:29:5013
378336994710,59cyclictest0-21swapper/1500:31:527
3783279947123,28cyclictest0-21swapper/1323:24:285
3783009946923,29cyclictest0-21swapper/721:32:0713
3783209946826,441cyclictest0-21swapper/1120:32:083
3783209946817,29cyclictest0-21swapper/1120:15:083
3782749946820,30cyclictest0-21swapper/023:02:070
3782809946719,29cyclictest0-21swapper/221:10:078
3783259946618,28cyclictest0-21swapper/1223:38:294
378320994664,460cyclictest0-21swapper/1120:35:083
3783129946621,30cyclictest0-21swapper/1021:28:512
3783259946519,29cyclictest0-21swapper/1222:35:304
3782789946517,30cyclictest0-21swapper/100:15:071
378336994610,460cyclictest0-21swapper/1521:10:437
3783209946010,30cyclictest0-21swapper/1122:59:293
37831299458457,1cyclictest447803-21kworker/10:2+i915-unordered20:57:082
37831299458457,1cyclictest447803-21kworker/10:2+i915-unordered20:57:082
37830799458458,0cyclictest0-21swapper/921:05:0815
37830799458458,0cyclictest0-21swapper/921:05:0815
37829399457456,1cyclictest0-21swapper/521:35:0211
37828599457457,0cyclictest69750irq/159-i91523:23:079
378300994553,30cyclictest577793-21sleep23:19:0313
378320994540,452cyclictest0-21swapper/1120:53:083
378278994537,30cyclictest0-21swapper/123:04:311
37827899453452,1cyclictest0-21swapper/123:25:021
3782789945333,419cyclictest0-21swapper/120:17:301
378320994524,30cyclictest0-21swapper/1120:07:083
378325994510,27cyclictest0-21swapper/1219:48:524
378325994502,28cyclictest0-21swapper/1200:22:524
378320994500,30cyclictest0-21swapper/1123:56:283
378300994490,30cyclictest0-21swapper/721:05:5213
378300994490,30cyclictest0-21swapper/721:05:5213
37828599449448,1cyclictest69750irq/159-i91523:12:079
3783259944829,418cyclictest0-21swapper/1221:12:294
378320994480,29cyclictest0-21swapper/1119:53:083
378278994480,30cyclictest0-21swapper/100:24:301
3783279944726,420cyclictest0-21swapper/1323:49:505
3783279944726,420cyclictest0-21swapper/1323:49:505
378325994471,29cyclictest0-21swapper/1200:12:524
3783129944722,30cyclictest0-21swapper/1019:51:502
3783259944625,420cyclictest0-21swapper/1222:50:524
3783259944625,420cyclictest0-21swapper/1221:18:524
3783259944624,421cyclictest0-21swapper/1220:48:544
3783369944525,419cyclictest0-21swapper/1523:50:077
3783369944525,419cyclictest0-21swapper/1523:50:077
3783279944525,419cyclictest0-21swapper/1322:23:315
3783279944525,419cyclictest0-21swapper/1300:34:515
3783259944525,419cyclictest0-21swapper/1220:43:534
3783209944525,418cyclictest0-21swapper/1123:30:513
37827899445442,1cyclictest0-21swapper/119:42:091
3783209944423,418cyclictest0-21swapper/1120:10:523
3783259944324,418cyclictest0-21swapper/1221:39:304
378325994430,28cyclictest0-21swapper/1222:41:074
3783209944322,419cyclictest0-21swapper/1123:05:523
37829399443442,1cyclictest0-21swapper/523:13:0711
37830499442441,1cyclictest512956-21kworker/8:1+i915-unordered22:10:0714
3782789944119,421cyclictest0-21swapper/122:52:301
3783259944024,413cyclictest0-21swapper/1223:32:074
3782859944025,414cyclictest0-21swapper/322:30:079
3782789944021,417cyclictest0-21swapper/121:27:311
3783259943922,416cyclictest0-21swapper/1220:53:074
3783259943919,417cyclictest0-21swapper/1223:02:524
3783209943918,419cyclictest0-21swapper/1123:17:503
3783009943913,30cyclictest0-21swapper/719:09:3113
3782809943920,418cyclictest0-21swapper/220:47:078
3782789943919,418cyclictest0-21swapper/122:00:531
37833199438437,1cyclictest0-21swapper/1423:18:076
3782859943817,418cyclictest0-21swapper/300:35:529
37827499438435,2cyclictest349299-21kworker/0:4+pm22:43:430
37829399437436,1cyclictest396072-21kworker/5:0+i915-unordered20:28:0811
3782749943718,0cyclictest0-21swapper/023:31:290
3783259943618,416cyclictest0-21swapper/1222:24:524
37832099436436,0cyclictest407301-21kworker/11:1+i915-unordered19:42:083
37828599436435,1cyclictest0-21swapper/322:06:039
3782809943614,420cyclictest0-21swapper/220:42:308
3782859943519,415cyclictest0-21swapper/322:26:079
3782789943515,419cyclictest0-21swapper/100:35:301
3782789943511,420cyclictest0-21swapper/123:36:301
3783279943413,420cyclictest0-21swapper/1321:34:305
3783209943416,416cyclictest0-21swapper/1121:25:073
3783079943419,414cyclictest0-21swapper/900:01:0715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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