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2026-06-16 - 16:14
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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 Tue Jun 16, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34134309957610,44cyclictest0-21swapper/722:10:1313
341344899525522,2cyclictest3613066-21kworker/11:2+i915-unordered23:18:133
34134179952317,504cyclictest0-21swapper/420:48:1310
34134599951122,28cyclictest0-21swapper/1423:09:136
3413448995019,490cyclictest0-21swapper/1121:09:133
3413415994964,491cyclictest0-21swapper/319:45:149
341340699494492,2cyclictest3552574-21kworker/u64:8+events_unbound22:13:131
34134179949315,59cyclictest0-21swapper/422:42:5810
34134179949315,59cyclictest0-21swapper/422:42:5810
341344499491490,1cyclictest3596366-21kworker/10:1+i915-unordered23:08:132
34134599948420,59cyclictest0-21swapper/1422:59:136
34134599947918,460cyclictest0-21swapper/1422:48:136
34134599947918,460cyclictest0-21swapper/1422:48:136
3413456994794,26cyclictest0-21swapper/1322:11:135
341344499475475,0cyclictest3689589-21kworker/10:2+i915-unordered00:31:132
34134229947529,29cyclictest0-21swapper/521:54:3511
34134369947426,447cyclictest106-21ksoftirqd/900:28:1315
34134229947325,30cyclictest0-21swapper/523:00:5711
34134229947225,30cyclictest0-21swapper/520:19:3411
34134229947225,29cyclictest0-21swapper/522:00:5811
34134229947224,30cyclictest0-21swapper/520:02:5611
34134229947124,28cyclictest0-21swapper/520:14:3611
34134309947020,30cyclictest0-21swapper/721:28:3713
34134229947025,29cyclictest0-21swapper/519:35:5611
3413459994697,461cyclictest0-21swapper/1400:31:136
34134229946924,28cyclictest0-21swapper/519:38:3611
34134039946923,30cyclictest0-21swapper/021:45:590
341345999467463,2cyclictest69750irq/159-i91522:10:136
3413459994674,462cyclictest0-21swapper/1423:18:136
3413459994667,458cyclictest0-21swapper/1423:55:136
34134309946618,30cyclictest0-21swapper/719:28:3513
34134309946516,30cyclictest0-21swapper/700:08:5513
341344899464464,0cyclictest3443888-21kworker/11:1+i915-unordered19:45:143
34134539946322,29cyclictest0-21swapper/1220:58:134
3413425994620,461cyclictest0-21swapper/619:45:1412
34134309946113,29cyclictest0-21swapper/723:11:3513
3413430994609,30cyclictest0-21swapper/700:18:3413
34134229946014,29cyclictest0-21swapper/500:07:3711
34134599945917,30cyclictest0-21swapper/1423:43:136
34134539945920,29cyclictest0-21swapper/1222:44:134
34134539945920,29cyclictest0-21swapper/1222:44:134
341346399458456,1cyclictest3570984-21kworker/15:0+i915-unordered23:09:137
34134229945710,29cyclictest0-21swapper/523:07:3611
3413430994569,29cyclictest0-21swapper/721:03:5713
34134309945610,30cyclictest0-21swapper/722:49:5713
34134309945610,30cyclictest0-21swapper/722:49:5713
341345999454454,0cyclictest69750irq/159-i91519:45:146
341345999454451,3cyclictest1818-21snmpd20:18:086
341346399453452,1cyclictest0-21swapper/1520:45:247
341343699453453,0cyclictest0-21swapper/923:23:4815
34134159945326,29cyclictest0-21swapper/300:03:589
3413459994524,28cyclictest0-21swapper/1420:39:356
3413444994527,29cyclictest0-21swapper/1022:04:132
341341799452423,29cyclictest0-21swapper/422:48:1310
341341799452423,29cyclictest0-21swapper/422:48:1310
34134489945112,29cyclictest0-21swapper/1122:43:133
34134489945112,29cyclictest0-21swapper/1122:43:133
341342599450447,2cyclictest3548593-21kworker/u64:5+events_unbound22:32:5712
3413425994500,30cyclictest0-21swapper/621:26:5712
3413403994503,30cyclictest0-21swapper/023:33:580
34134369944925,423cyclictest0-21swapper/922:31:5915
341342599449447,2cyclictest3297905-21kworker/6:2+i915-unordered19:19:1412
341342299449448,1cyclictest1818-21snmpd22:40:2511
341342299449448,1cyclictest1818-21snmpd22:40:2511
3413422994490,29cyclictest0-21swapper/500:19:5511
3413415994490,30cyclictest0-21swapper/321:47:599
34134369944826,421cyclictest0-21swapper/922:23:5915
341343499448447,1cyclictest3621825-21kworker/8:2+pm23:23:4814
3413422994480,30cyclictest0-21swapper/520:26:3611
341345399447445,2cyclictest3498918-21kworker/12:1+i915-unordered20:48:134
34134539944726,420cyclictest0-21swapper/1200:32:354
3413425994470,446cyclictest0-21swapper/622:50:3612
3413425994470,446cyclictest0-21swapper/622:50:3612
341340699447444,2cyclictest3476140-21kworker/1:0+events20:37:371
34134369944626,420cyclictest0-21swapper/900:26:3515
34134369944625,420cyclictest0-21swapper/922:16:3415
34134369944624,421cyclictest0-21swapper/921:03:3615
34134309944625,418cyclictest0-21swapper/723:13:3513
3413422994460,30cyclictest0-21swapper/523:05:5811
3413417994458,28cyclictest0-21swapper/421:12:0910
34134159944524,420cyclictest0-21swapper/323:19:379
34134369944426,417cyclictest0-21swapper/920:43:5815
34134599944322,420cyclictest0-21swapper/1420:01:556
34134599944322,420cyclictest0-21swapper/1420:01:556
34134309944318,29cyclictest0-21swapper/723:37:5813
34134259944323,419cyclictest0-21swapper/619:22:3612
34134229944324,418cyclictest0-21swapper/520:47:5811
34134229944324,416cyclictest0-21swapper/520:56:5911
34134229944323,0cyclictest0-21swapper/520:43:3611
34134159944323,419cyclictest0-21swapper/322:45:589
34134159944323,419cyclictest0-21swapper/322:45:589
34134159944321,421cyclictest0-21swapper/320:03:589
341340399443442,1cyclictest0-21swapper/021:57:570
341345999442439,2cyclictest3595243-21kworker/u64:8+events_unbound23:26:136
34134349944223,418cyclictest0-21swapper/821:22:3414
341342299442440,1cyclictest3557845-21kworker/u64:3+events_unbound22:11:1311
34134229944225,415cyclictest0-21swapper/521:11:5511
34134229944224,416cyclictest0-21swapper/521:13:3411
34134229944224,416cyclictest0-21swapper/519:29:5811
34134229944223,417cyclictest0-21swapper/520:40:5611
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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