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2026-09-14 - 22:08
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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 Mon Sep 14, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3992942995457,0cyclictest0-21swapper/320:33:239
3992932995394,534cyclictest0-21swapper/019:41:230
399297599528526,2cyclictest3964144-21kworker/11:1+i915-unordered20:33:233
399298599491490,1cyclictest4025701-21kworker/13:0+i915-unordered19:57:235
399298599490458,32cyclictest0-21swapper/1323:38:235
399295199484480,3cyclictest17138-21kworker/5:2+i915-unordered23:38:2311
399295199483481,2cyclictest0-21swapper/519:57:2311
399296199476476,0cyclictest4017805-21kworker/8:2+i915-unordered19:41:2314
39929539947527,28cyclictest0-21swapper/621:21:4412
39929349947326,30cyclictest0-21swapper/122:01:071
39929349947326,30cyclictest0-21swapper/100:34:081
39929349947326,28cyclictest0-21swapper/122:28:451
39929349947325,29cyclictest0-21swapper/100:11:451
39929349947323,30cyclictest0-21swapper/122:58:441
39929349947225,30cyclictest0-21swapper/123:00:441
39929349947223,30cyclictest0-21swapper/120:52:081
39929539947124,29cyclictest0-21swapper/622:32:4612
39929539947122,447cyclictest0-21swapper/621:00:4612
39929539947122,28cyclictest0-21swapper/620:37:0712
39929349947125,29cyclictest0-21swapper/120:28:081
39929349947123,30cyclictest0-21swapper/122:43:071
39929349947123,30cyclictest0-21swapper/122:43:071
39929539946923,29cyclictest0-21swapper/600:21:0712
39929539946922,29cyclictest0-21swapper/623:36:0712
39929539946921,29cyclictest0-21swapper/623:53:4512
399298599468438,30cyclictest0-21swapper/1319:12:235
39929539946822,29cyclictest0-21swapper/619:53:4712
39929539946821,30cyclictest0-21swapper/621:58:0912
39929539946820,29cyclictest0-21swapper/620:34:0612
3992942994680,29cyclictest0-21swapper/321:45:469
39929939946623,29cyclictest0-21swapper/1520:42:237
39929539946618,29cyclictest0-21swapper/620:04:4612
39929539946618,29cyclictest0-21swapper/620:04:4612
3992985994653,2cyclictest0-21swapper/1300:04:565
399295199461460,1cyclictest3861259-21kworker/5:1+i915-unordered19:12:2311
399295199461457,3cyclictest1818-21snmpd00:04:5611
399295799459459,0cyclictest4021865-21kworker/7:2+i915-unordered19:40:2313
3992953994578,30cyclictest0-21swapper/620:46:4412
399296199456453,3cyclictest1818-21snmpd21:40:2014
399295799455425,30cyclictest0-21swapper/720:52:2313
3992934994557,29cyclictest0-21swapper/120:34:471
39929619945410,29cyclictest0-21swapper/822:47:4514
39929619945410,29cyclictest0-21swapper/822:47:4514
39929619945311,29cyclictest0-21swapper/821:02:4514
3992953994537,29cyclictest0-21swapper/620:01:4512
3992953994537,29cyclictest0-21swapper/620:01:4512
3992953994525,30cyclictest0-21swapper/621:49:4612
39929469945211,30cyclictest0-21swapper/421:16:2310
3992961994517,30cyclictest0-21swapper/800:16:0714
3992934994514,445cyclictest0-21swapper/119:50:061
39929349945124,30cyclictest0-21swapper/123:36:441
3992934994493,28cyclictest0-21swapper/100:07:441
3992934994492,29cyclictest0-21swapper/122:52:441
3992934994492,29cyclictest0-21swapper/122:52:441
3992970994480,28cyclictest0-21swapper/1020:17:452
3992961994487,30cyclictest0-21swapper/821:21:0814
3992934994484,29cyclictest0-21swapper/121:34:451
39929539944721,30cyclictest0-21swapper/619:47:4512
399297599446445,1cyclictest3939940-21kworker/11:0+pm00:09:573
39929539944619,28cyclictest0-21swapper/623:33:4512
39929329944626,419cyclictest0-21swapper/021:49:060
39929329944624,421cyclictest0-21swapper/021:11:070
3992961994453,30cyclictest0-21swapper/823:19:0614
39929329944524,420cyclictest0-21swapper/020:33:060
3992961994443,30cyclictest0-21swapper/823:30:0614
39929349944425,417cyclictest0-21swapper/119:55:071
39929349944424,418cyclictest0-21swapper/123:31:041
3992961994431,30cyclictest0-21swapper/822:41:0614
3992961994431,30cyclictest0-21swapper/822:41:0614
3992946994432,29cyclictest0-21swapper/421:46:2310
39929349944324,417cyclictest0-21swapper/121:53:091
39929329944320,422cyclictest0-21swapper/022:30:070
3992961994422,30cyclictest0-21swapper/823:00:0614
3992961994422,29cyclictest0-21swapper/820:42:0814
399295799442441,1cyclictest4053925-21kworker/7:0+i915-unordered20:42:2313
39929539944223,417cyclictest0-21swapper/621:39:0712
399293899441439,2cyclictest4095019-21kworker/2:2+i915-unordered21:10:238
39929539944021,417cyclictest0-21swapper/621:06:0612
39929539944021,0cyclictest0-21swapper/620:16:0612
39929809943923,416cyclictest0-21swapper/1220:05:234
39929809943923,416cyclictest0-21swapper/1220:05:234
399296599438438,0cyclictest4078902-21kworker/9:2+pm21:40:2015
3992993994370,26cyclictest0-21swapper/1523:46:237
39929329943714,422cyclictest0-21swapper/020:21:460
39929709943623,413cyclictest0-21swapper/1023:05:232
39929579943622,413cyclictest0-21swapper/721:18:2313
39929579943415,418cyclictest0-21swapper/700:28:2313
39929329943413,420cyclictest0-21swapper/000:29:440
399298899433430,3cyclictest4102152-21kworker/14:2+i915-unordered21:24:056
39929659943313,419cyclictest0-21swapper/923:07:4415
39929619943319,413cyclictest0-21swapper/822:19:0714
39929469943319,414cyclictest0-21swapper/420:35:2310
39929469943319,413cyclictest0-21swapper/420:11:2310
39929939943218,414cyclictest0-21swapper/1500:16:237
39929759943211,420cyclictest0-21swapper/1122:41:453
39929759943211,420cyclictest0-21swapper/1122:41:453
39929659943219,412cyclictest0-21swapper/922:21:2315
399298899431429,2cyclictest4094089-21kworker/14:1+i915-unordered21:17:236
399297099431430,1cyclictest69750irq/159-i91521:10:232
3992993994305,30cyclictest0-21swapper/1519:06:077
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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