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2025-12-02 - 07:04
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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 rackeslot8.osadl.org (updated Tue Dec 02, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48510221040,1sleep20-21swapper/223:48:482
2991382300,1sleep20-21swapper/221:54:272
73938992826,1cyclictest0-21swapper/323:50:003
73938992825,1cyclictest0-21swapper/321:00:013
73938992522,1cyclictest0-21swapper/320:40:013
7393899229,1cyclictest0-21swapper/322:50:003
73938992219,1cyclictest0-21swapper/320:10:003
7393899219,9cyclictest0-21swapper/321:10:223
7393899211,9cyclictest477075-21taskset23:43:563
73938992119,1cyclictest0-21swapper/321:55:003
73938992118,2cyclictest0-21swapper/322:00:223
7393899211,15cyclictest170037-21turbostat20:25:003
7393899209,1cyclictest0-21swapper/323:20:173
7393899209,1cyclictest0-21swapper/323:05:213
7393899209,0cyclictest0-21swapper/300:33:403
73938992017,1cyclictest0-21swapper/300:00:143
7393899201,15cyclictest468527-21taskset23:37:513
7393899201,15cyclictest307427-21turbostat22:00:003
7393899201,14cyclictest267446-21chrt21:35:123
7393899201,13cyclictest207950-21taskset20:55:013
73938992011,1cyclictest0-21swapper/320:33:353
5662502201,11sleep1566254-21ssh00:38:541
7393899197,7cyclictest3403412sleep322:20:103
7393899191,14cyclictest79987-21taskset19:12:583
7393899191,14cyclictest525985-21taskset00:14:183
7393899191,14cyclictest512436-21taskset00:05:163
7393899191,14cyclictest446110-21taskset23:25:173
7393899191,14cyclictest370930-21chrt22:36:163
7393899191,14cyclictest364470-21turbostat22:35:003
73938991910,1cyclictest0-21swapper/322:50:183
73938991910,0cyclictest0-21swapper/323:59:123
7393899190,14cyclictest113619-21turbostat19:40:003
7393899188,1cyclictest0-21swapper/320:25:263
7393899186,6cyclictest3787612sleep322:40:453
7393899186,6cyclictest2571482sleep321:25:433
73938991815,1cyclictest0-21swapper/321:05:223
73938991811,5cyclictest0-21swapper/323:12:393
7393899181,14cyclictest249661-21chrt21:21:583
7393899181,13cyclictest459486-21taskset23:30:303
7393899181,13cyclictest411026-21chrt23:00:403
7393899181,13cyclictest404888-21turbostat23:00:003
7393899181,13cyclictest282449-21taskset21:43:103
7393899180,14cyclictest265303-21chrt21:30:513
7393899176,7cyclictest2413302sleep321:16:263
7393899176,5cyclictest1574232sleep320:14:103
7393899175,6cyclictest1950352sleep320:40:353
73938991714,1cyclictest0-21swapper/323:18:223
73938991714,1cyclictest0-21swapper/322:15:163
73938991714,1cyclictest0-21swapper/300:20:003
7393899171,13cyclictest290222-21taskset21:47:303
7393899171,13cyclictest201346-21taskset20:46:073
7393899171,12cyclictest88201-21chrt19:15:543
7393899171,12cyclictest562213-21taskset00:35:183
7393899171,12cyclictest548671-21taskset00:25:323
7393899171,12cyclictest548671-21taskset00:25:323
7393899171,12cyclictest355713-21taskset22:28:223
7393899171,12cyclictest132078-21chrt19:51:013
7393899168,6cyclictest0-21swapper/319:20:133
7393899168,1cyclictest0-21swapper/320:00:153
7393899161,12cyclictest477839-21chrt23:45:093
7393899161,12cyclictest323183-21chrt22:08:303
7393899161,12cyclictest220131-21taskset21:00:503
7393899161,12cyclictest138384-21taskset19:56:503
7393899161,12cyclictest125948-21taskset19:48:003
7393899161,12cyclictest100863-21taskset19:27:363
7393899161,11cyclictest330269-21taskset22:11:073
7393899160,13cyclictest534769-21chrt00:20:113
7393899151,11cyclictest113878-21taskset19:40:113
7393899151,10cyclictest106415-21taskset19:30:213
7393899150,12cyclictest163447-21taskset20:16:213
678722150,2sleep30-21swapper/319:05:133
5428462151,4sleep2542880-21apt-get00:25:122
5428462151,4sleep2542880-21apt-get00:25:122
5238382150,12sleep1523961-21python300:10:241
5104022150,8sleep2510410-21ssh00:05:042
4277382151,7sleep2427746-21ssh23:12:022
147598150,2rtkit-daemon0-21swapper/000:13:380
1282112141,10sleep0130220-21kthreadcore19:50:190
147598130,9rtkit-daemon232905-21ssh21:10:332
729982121,6sleep0214-21plymouthd19:05:220
4860912120,9sleep2485602-21apt-get23:50:012
2676002120,8sleep0267696-21fschecks_time21:35:140
2496982120,9sleep0249706-21ssh21:22:040
1835242120,4sleep2184471-21cut20:35:172
1768402121,8sleep1176899-21sort20:30:151
147598120,8rtkit-daemon392522-21cut22:50:182
147598120,7rtkit-daemon468931-21ssh23:38:422
147598120,6rtkit-daemon1540-21sendmail-mta20:21:502
803942111,7sleep281885-21kthreadcore19:15:022
738042111,7sleep20-21swapper/219:10:012
5525182110,4sleep1554470-21tr00:30:161
3996962111,7sleep2401711-21tr22:55:192
2258392111,7sleep1225895-21ntp_states21:05:211
1538032110,8sleep1155874-21kthreadcore20:10:191
147598110,7rtkit-daemon456758-21kthreadcore23:30:192
147598110,7rtkit-daemon1540-21sendmail-mta23:07:352
147598110,7rtkit-daemon118856-21/usr/sbin/munin19:40:202
147598110,4rtkit-daemon80407-21munin-node22:59:460
5604612100,7sleep20-21swapper/200:35:182
4308282100,2sleep1431954-21kthreadcore23:15:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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