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2025-04-02 - 08:22
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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 50 highest latencies:
System rack0slot6.osadl.org (updated Fri Feb 28, 2025 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5669499953436,498cyclictest0-21swapper/721:50:4413
5669309953015,45cyclictest0-21swapper/221:28:568
5669309953015,45cyclictest0-21swapper/221:28:568
5669699952498,425cyclictest778100-21kworker/12:1+i915-unordered00:14:234
5669359952324,498cyclictest0-21swapper/319:40:209
5669809952021,499cyclictest0-21swapper/1522:21:237
5669309951921,498cyclictest0-21swapper/221:36:448
5669459951515,499cyclictest0-21swapper/620:46:4312
566969995125,506cyclictest0-21swapper/1221:57:214
5669809951115,496cyclictest0-21swapper/1519:35:217
5669809950335,468cyclictest0-21swapper/1522:19:237
5669699950133,467cyclictest132-21ksoftirqd/1221:23:424
5669519950133,0cyclictest0-21swapper/819:45:4314
5669499950116,483cyclictest0-21swapper/720:28:4313
5669249949931,467cyclictest0-21swapper/022:39:450
566949994980,498cyclictest0-21swapper/720:04:2313
566949994980,0cyclictest0-21swapper/720:10:2313
566935994980,498cyclictest0-21swapper/321:39:459
5669309949723,0cyclictest0-21swapper/221:57:218
566978994960,495cyclictest0-21swapper/1422:04:466
5669699949614,42cyclictest0-21swapper/1221:04:464
566949994960,496cyclictest0-21swapper/722:54:5613
566978994950,495cyclictest0-21swapper/1421:04:236
5669699949123,28cyclictest0-21swapper/1223:24:434
56693099491490,1cyclictest789871-21kworker/2:0+i915-unordered00:23:208
5669359948820,468cyclictest0-21swapper/320:14:419
5669699948721,27cyclictest0-21swapper/1219:42:224
56694599487487,0cyclictest648883-21kworker/6:2+i915-unordered20:57:5912
5669359948516,0cyclictest0-21swapper/319:31:239
5669699948461,422cyclictest578362-21kworker/12:3+i915-unordered21:36:594
5669699948419,26cyclictest0-21swapper/1222:10:574
5669499948414,468cyclictest0-21swapper/719:30:2013
56697899483483,0cyclictest0-21swapper/1422:18:236
56696999482482,0cyclictest578362-21kworker/12:3+i915-unordered21:34:444
56696999482482,0cyclictest578362-21kworker/12:3+i915-unordered21:34:444
566969994811,43cyclictest132-21ksoftirqd/1219:32:524
5669699948056,423cyclictest778100-21kworker/12:1+i915-unordered00:06:214
5669499948011,469cyclictest0-21swapper/700:20:4413
5669789947910,469cyclictest0-21swapper/1420:40:436
56696999479478,1cyclictest778100-21kworker/12:1+events00:15:464
5669459947927,452cyclictest0-21swapper/623:46:2012
5669459947910,469cyclictest0-21swapper/600:22:2012
5669699947840,437cyclictest0-21swapper/1223:14:444
5669699947519,454cyclictest0-21swapper/1223:51:444
566945994750,474cyclictest0-21swapper/621:57:2112
56698099474472,2cyclictest602142-21kworker/15:1+i915-unordered20:01:597
56696999474474,0cyclictest727663-21kworker/12:0+i915-unordered22:51:204
5669699947419,454cyclictest0-21swapper/1220:37:554
566969994713,27cyclictest0-21swapper/1200:22:204
56695199470469,1cyclictest773297-21kworker/8:2+events00:01:4414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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