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2026-05-16 - 19:26
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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 May 16, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39921379956340,522cyclictest0-21swapper/320:26:119
39921379952912,516cyclictest0-21swapper/320:56:119
399216799502501,1cyclictest4053280-21kworker/11:2+i915-unordered20:26:113
39921629947620,455cyclictest0-21swapper/1019:20:122
399215199473442,31cyclictest0-21swapper/721:32:1113
399215199470440,30cyclictest0-21swapper/721:15:1113
399216799468466,2cyclictest4073415-21kworker/11:0+i915-unordered20:56:113
39921589946813,58cyclictest0-21swapper/900:23:3515
39921859946718,30cyclictest0-21swapper/1520:25:347
3992162994638,454cyclictest0-21swapper/1019:12:122
399212999461459,2cyclictest4121605-21kworker/1:2+i915-unordered23:20:111
399217499458427,31cyclictest0-21swapper/1223:34:114
399216799456454,2cyclictest0-21swapper/1123:06:113
39921629945513,441cyclictest0-21swapper/1020:56:112
399213299454453,1cyclictest69750irq/159-i91519:20:128
399217999452450,2cyclictest4173998-21kworker/13:0+i915-unordered22:51:115
399213299452451,1cyclictest69750irq/159-i91520:26:118
399214099450449,1cyclictest4065574-21kworker/4:1+i915-unordered20:51:1110
399212999450448,2cyclictest0-21swapper/122:30:111
399214099448447,1cyclictest8481-21kworker/4:1+i915-unordered23:34:1110
399218299447446,1cyclictest4004800-21kworker/14:1+i915-unordered19:20:126
399216299446444,1cyclictest0-21swapper/1022:30:112
39921479944518,30cyclictest0-21swapper/620:18:3212
39921329944523,30cyclictest0-21swapper/221:36:118
39921859944418,30cyclictest0-21swapper/1519:54:337
3992162994444,439cyclictest0-21swapper/1021:15:112
39921479944316,29cyclictest0-21swapper/621:26:3312
39921859944216,29cyclictest0-21swapper/1522:29:327
399213299442441,1cyclictest69750irq/159-i91519:12:128
399213299442440,1cyclictest4012874-21kworker/2:0+i915-unordered19:33:338
399213299442440,1cyclictest4012874-21kworker/2:0+i915-unordered19:33:338
39921299944221,421cyclictest0-21swapper/120:44:111
39921859944014,29cyclictest0-21swapper/1522:19:337
39921479944016,29cyclictest0-21swapper/623:28:3412
39921479944015,29cyclictest0-21swapper/620:41:5712
39921479944015,29cyclictest0-21swapper/600:03:5612
39921479944014,29cyclictest0-21swapper/619:59:3312
39921479943810,425cyclictest0-21swapper/622:14:3212
39921479943810,425cyclictest0-21swapper/622:14:3212
3992132994380,437cyclictest0-21swapper/222:57:348
39921569943719,29cyclictest0-21swapper/821:04:5614
39921479943713,29cyclictest0-21swapper/619:37:3412
39921479943713,29cyclictest0-21swapper/619:37:3412
39921329943715,28cyclictest0-21swapper/200:11:118
39921679943621,414cyclictest0-21swapper/1120:41:113
39921519943616,29cyclictest0-21swapper/722:08:0713
3992147994369,30cyclictest0-21swapper/619:31:3312
3992147994367,30cyclictest0-21swapper/623:41:3212
3992167994358,30cyclictest0-21swapper/1121:56:343
399216299435434,1cyclictest0-21swapper/1021:46:112
39921519943541,393cyclictest0-21swapper/722:01:1113
3992147994359,29cyclictest0-21swapper/619:19:3312
3992147994358,29cyclictest0-21swapper/623:08:0712
399212499435434,1cyclictest0-21swapper/000:20:110
39921519943418,415cyclictest0-21swapper/720:04:1113
3992129994349,424cyclictest34-21ksoftirqd/120:55:111
399216299433432,1cyclictest0-21swapper/1021:41:112
3992147994338,29cyclictest0-21swapper/621:20:5612
399214099433431,2cyclictest4065574-21kworker/4:1+i915-unordered21:14:1110
399217499432429,3cyclictest0-21swapper/1220:51:114
399216799432431,1cyclictest0-21swapper/1100:10:113
399216299432430,2cyclictest0-21swapper/1021:32:112
3992147994328,30cyclictest0-21swapper/620:12:5512
3992147994328,28cyclictest0-21swapper/600:37:5412
399213299432430,2cyclictest69750irq/159-i91520:56:118
3992129994327,424cyclictest34-21ksoftirqd/119:45:111
39921679943111,30cyclictest0-21swapper/1123:10:113
3992158994316,30cyclictest0-21swapper/922:55:5515
3992158994314,29cyclictest0-21swapper/920:45:3415
3992158994311,29cyclictest0-21swapper/923:49:5415
3992129994305,424cyclictest34-21ksoftirqd/120:14:111
399212999430429,1cyclictest0-21swapper/119:38:071
399212999430429,1cyclictest0-21swapper/119:38:071
3992158994292,29cyclictest0-21swapper/921:29:5315
3992158994291,29cyclictest0-21swapper/921:43:5515
399216299428428,0cyclictest0-21swapper/1023:24:112
3992158994281,30cyclictest0-21swapper/920:54:3315
399214399428425,3cyclictest0-21swapper/522:51:1111
399217499427425,2cyclictest0-21swapper/1200:20:114
399216299427425,2cyclictest0-21swapper/1023:20:112
3992158994270,29cyclictest0-21swapper/921:27:3215
3992158994270,29cyclictest0-21swapper/900:32:5415
3992147994270,30cyclictest0-21swapper/620:51:5612
399213299427427,0cyclictest0-21swapper/223:45:348
399216799426425,1cyclictest0-21swapper/1120:37:113
3992167994260,425cyclictest0-21swapper/1119:23:243
399216299426425,1cyclictest0-21swapper/1023:00:112
399216299426425,1cyclictest0-21swapper/1020:00:112
399216299426424,1cyclictest4170085-21kworker/10:2+i915-unordered22:50:112
399215199426423,3cyclictest1818-21snmpd21:20:4513
39921679942415,29cyclictest0-21swapper/1122:40:113
399214399424424,0cyclictest0-21swapper/522:47:1111
3992185994230,30cyclictest0-21swapper/1519:50:337
399213299423422,1cyclictest69750irq/159-i91522:30:118
399215199422422,0cyclictest0-21swapper/720:00:1113
399213299422421,1cyclictest69750irq/159-i91521:15:118
399213299422421,1cyclictest69750irq/159-i91520:37:118
399216299421418,2cyclictest4049252-21kworker/10:0+events20:35:322
3992151994210,29cyclictest0-21swapper/719:40:1113
3992151994210,29cyclictest0-21swapper/719:40:1113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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