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2026-06-23 - 15:51
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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 rack0slot2.osadl.org (updated Tue Jun 23, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269947725631,7sleep50-21swapper/507:08:295
269947725631,7sleep50-21swapper/507:08:295
269931025520,30sleep70-21swapper/707:06:077
269931025520,30sleep70-21swapper/707:06:077
269945625342,7sleep40-21swapper/407:08:124
269945625342,7sleep40-21swapper/407:08:124
2699860994240,2cyclictest2936180-21kworker/u16:0+flush-8:009:09:355
2699860994240,2cyclictest2830178-21kworker/u16:0+flush-8:008:39:365
2699867993833,4cyclictest2917739-21latency_hist08:59:357
269935623826,8sleep60-21swapper/607:06:466
269935623826,8sleep60-21swapper/607:06:466
2699857993532,2cyclictest2949596-21kworker/u16:1+events_unbound09:29:504
2699860993331,2cyclictest3309271-21kworker/u16:0+flush-8:012:04:535
2699860993028,2cyclictest3369153-21kworker/u16:4+flush-8:012:19:305
2699860992927,2cyclictest3233423-21kworker/u16:1+flush-8:011:34:545
30218772280,1chrt3021875-21ssh09:41:197
2699860992823,2cyclictest2962301-21kworker/u16:5+flush-8:009:24:315
33310782270,1chrt3331076-21ssh11:47:417
2699867992722,4cyclictest3282897-21latency_hist11:29:357
2699857992725,2cyclictest3086024-21kworker/u16:1+flush-8:010:39:464
2699867992520,4cyclictest650-21systemd-journal11:05:297
2699857992322,1cyclictest3086024-21kworker/u16:1+events_unbound10:12:204
2699857992220,2cyclictest3233423-21kworker/u16:1+events_unbound11:09:514
269986799210,19cyclictest3430663-21latency_hist12:29:357
2699860992119,2cyclictest3395321-21kworker/u16:1+events_unbound12:24:585
2699860992119,2cyclictest3233423-21kworker/u16:1+events_unbound11:24:585
2699860992118,2cyclictest3071168-21kworker/u16:2+flush-8:010:29:525
2699867992014,5cyclictest650-21systemd-journal07:14:367
2699865992017,2cyclictest3395322-21kworker/u16:2+flush-8:012:25:326
2699865991916,3cyclictest2840302-21kworker/u16:2+flush-8:009:10:026
2699860991917,2cyclictest2679895-21kworker/u16:1+flush-8:008:25:065
269986799180,17cyclictest0-21swapper/711:39:587
2699865991816,2cyclictest3218951-21kworker/u16:0+flush-8:011:05:376
2699865991813,1cyclictest0-21swapper/610:47:516
2699860991816,2cyclictest3071168-21kworker/u16:2+events_unbound10:39:595
2699857991816,2cyclictest3159735-21kworker/u16:4+flush-8:011:04:354
2699867991715,1cyclictest0-21swapper/710:04:577
2699867991713,3cyclictest1278-21snmpd08:01:317
269986799170,1cyclictest0-21swapper/712:29:597
269986799170,1cyclictest0-21swapper/712:29:597
269986799170,16cyclictest0-21swapper/709:29:597
269986599170,16cyclictest3260806-21kthreadcore11:19:516
269986599170,14cyclictest0-21swapper/609:49:506
2699860991715,2cyclictest2998914-21kworker/u16:4+flush-8:009:35:095
2699867991613,2cyclictest1278-21snmpd11:11:057
2699867991611,4cyclictest3393631-21latency_hist12:14:357
269986799160,14cyclictest1278-21snmpd11:30:037
269986799160,14cyclictest0-21swapper/710:15:047
2699865991613,1cyclictest0-21swapper/611:39:436
2699865991612,3cyclictest3369087-21kworker/u16:3+flush-8:012:05:026
269986599160,0cyclictest0-21swapper/611:45:526
2699857991615,1cyclictest3369153-21kworker/u16:4+events_unbound12:28:234
2699857991614,2cyclictest3045358-21kworker/u16:0+flush-8:009:50:034
2699867991513,1cyclictest3170946-21ssh10:42:427
2699867991513,1cyclictest0-21swapper/709:24:597
269986799150,14cyclictest0-21swapper/709:10:017
269986599152,5cyclictest0-21swapper/608:29:496
2699865991514,1cyclictest0-21swapper/609:16:156
2699860991513,2cyclictest2878909-21kworker/u16:4+flush-8:009:01:125
269986099150,15cyclictest0-21swapper/509:32:305
269986099150,15cyclictest0-21swapper/509:15:195
2699857991513,2cyclictest3159735-21kworker/u16:4+events_unbound11:29:494
2699857991513,2cyclictest2840302-21kworker/u16:2+flush-8:008:50:024
2699857991512,2cyclictest6068-21gsd-rfkill11:05:524
269985799150,14cyclictest0-21swapper/411:59:584
269986799148,5cyclictest3418225-21latency_hist12:24:357
269986799140,3cyclictest3046030-21ssh09:50:147
269986799140,1cyclictest0-21swapper/708:35:017
2699865991413,1cyclictest0-21swapper/610:43:166
2699865991413,1cyclictest0-21swapper/610:24:506
2699865991413,1cyclictest0-21swapper/610:24:506
2699865991413,1cyclictest0-21swapper/609:57:336
269986599140,1cyclictest0-21swapper/611:36:436
269986599140,1cyclictest0-21swapper/611:01:346
269986599140,1cyclictest0-21swapper/610:17:166
269986599140,14cyclictest0-21swapper/612:23:336
2699860991413,1cyclictest0-21swapper/511:40:505
2699860991413,1cyclictest0-21swapper/511:12:565
2699860991413,1cyclictest0-21swapper/510:49:455
2699860991412,2cyclictest2679895-21kworker/u16:1+events_unbound07:59:505
2699857991413,1cyclictest0-21swapper/411:42:494
2699857991413,1cyclictest0-21swapper/410:31:334
2699857991413,1cyclictest0-21swapper/410:26:594
2699857991413,1cyclictest0-21swapper/410:26:594
2699857991413,1cyclictest0-21swapper/409:15:434
269985799140,1cyclictest2799985-21ntpq07:55:004
269985799140,1cyclictest0-21swapper/411:21:324
269985799140,1cyclictest0-21swapper/410:14:504
269985799140,1cyclictest0-21swapper/409:21:524
269985799140,14cyclictest0-21swapper/412:06:094
269985799140,14cyclictest0-21swapper/411:16:574
269985799140,14cyclictest0-21swapper/407:27:154
269986799139,3cyclictest3036143-21idleruntime-cro09:49:357
269986799139,3cyclictest1278-21snmpd12:09:157
269986799139,3cyclictest1278-21snmpd08:53:147
269986799139,3cyclictest1278-21snmpd08:42:317
269986799139,3cyclictest1278-21snmpd07:44:457
269986799139,3cyclictest1278-21snmpd07:29:427
269986799139,3cyclictest1278-21snmpd07:29:427
269986799137,5cyclictest6247-21gmain11:21:257
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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