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2026-08-03 - 07:05
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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 Mon Aug 03, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
64341992825,1cyclictest0-21swapper/319:20:013
64341992724,1cyclictest0-21swapper/322:00:393
64341992623,1cyclictest0-21swapper/300:20:183
64341992522,1cyclictest0-21swapper/320:00:263
64341992421,1cyclictest0-21swapper/323:25:203
64341992421,1cyclictest0-21swapper/323:20:263
64341992421,1cyclictest0-21swapper/321:20:133
64341992421,1cyclictest0-21swapper/320:20:003
64341992320,1cyclictest0-21swapper/323:00:363
64341992320,1cyclictest0-21swapper/322:20:183
64341992320,1cyclictest0-21swapper/320:40:073
6434199231,16cyclictest70821-21taskset19:15:013
64341992219,1cyclictest0-21swapper/320:20:103
64341992219,1cyclictest0-21swapper/319:40:083
6434199212,14cyclictest174972-21taskset20:32:023
64341992118,1cyclictest0-21swapper/323:55:153
64341992118,1cyclictest0-21swapper/321:40:163
64341992118,1cyclictest0-21swapper/321:10:163
64341992117,2cyclictest168569-21taskset20:26:213
6434199211,16cyclictest290760-21turbostat21:55:003
64341992017,1cyclictest0-21swapper/323:40:003
64341992017,1cyclictest0-21swapper/322:55:133
64341992016,2cyclictest0-21swapper/319:40:023
6434199192,13cyclictest548445-21taskset00:37:553
64341991916,1cyclictest0-21swapper/323:40:103
64341991916,1cyclictest0-21swapper/320:40:013
64341991916,1cyclictest0-21swapper/320:40:003
64341991916,1cyclictest0-21swapper/320:10:153
64341991915,2cyclictest0-21swapper/322:40:053
64341991915,1cyclictest0-21swapper/323:55:003
6434199191,14cyclictest532685-21taskset00:27:253
6434199191,14cyclictest213479-21taskset21:00:323
64341991910,7cyclictest2141092sleep321:05:123
6434199187,8cyclictest515688-21chrt00:15:233
6434199182,12cyclictest352877-21taskset22:32:423
64341991815,1cyclictest0-21swapper/322:15:183
64341991815,1cyclictest0-21swapper/322:15:183
64341991815,1cyclictest0-21swapper/319:55:213
64341991815,1cyclictest0-21swapper/300:08:213
64341991815,1cyclictest0-21swapper/300:00:063
6434199181,14cyclictest91649-21taskset19:25:393
6434199181,13cyclictest534116-21taskset00:30:143
6434199181,13cyclictest417183-21taskset23:15:163
6434199181,13cyclictest403803-21taskset23:05:183
6434199181,13cyclictest383744-21taskset22:51:273
6434199181,13cyclictest360594-21taskset22:37:233
6434199181,13cyclictest313669-21taskset22:08:003
6434199181,13cyclictest266671-21taskset21:38:133
6434199181,13cyclictest250400-21taskset21:26:393
6434199181,13cyclictest233508-21taskset21:15:203
6434199181,13cyclictest207400-21sleep21:00:013
6434199181,13cyclictest200894-21taskset20:54:313
6434199181,13cyclictest142399-21taskset20:05:253
6434199181,12cyclictest291026-21taskset21:55:013
3684882181,9sleep1368494-21ssh22:42:201
64341991716,0cyclictest0-21swapper/322:10:193
64341991714,1cyclictest0-21swapper/323:45:143
64341991714,1cyclictest0-21swapper/321:30:203
64341991714,1cyclictest0-21swapper/319:50:153
6434199171,13cyclictest415291-21taskset23:11:563
6434199171,13cyclictest344750-21taskset22:26:533
6434199171,12cyclictest92246-21taskset19:30:043
6434199171,12cyclictest78849-21taskset19:16:253
6434199171,12cyclictest375689-21taskset22:45:413
6434199171,12cyclictest275462-21taskset21:45:073
6434199170,13cyclictest440314-21chrt23:30:113
5236312172,12sleep2523668-21ntpq00:20:232
64341991613,1cyclictest0-21swapper/319:45:263
6434199161,12cyclictest193647-21taskset20:45:263
6434199161,11cyclictest502584-21taskset00:10:103
6434199161,11cyclictest502584-21taskset00:10:093
2769172161,5sleep1277952-21tr21:45:181
2581932163,5sleep1215204-21kworker/u16:1+nfsiod21:31:321
4377312152,4sleep2437776-21ntpq23:25:232
3122792151,11sleep0312358-21/usr/sbin/munin22:05:270
2650902151,4sleep1222-21plymouthd21:35:241
5457872140,3sleep2220224-21diskmemload00:35:222
5246152130,4sleep1222-21plymouthd00:21:351
4871062130,9sleep2487113-21basename00:00:112
4240152134,3sleep014-21ksoftirqd/023:19:320
3837002131,8sleep1383704-21ssh22:51:211
3697452131,4sleep0222-21plymouthd22:45:110
3452782130,5sleep0220224-21diskmemload22:28:230
3371622131,9sleep1337168-21ssh22:22:481
2714622131,9sleep1267332-21sendmail-msp21:40:221
1300072131,9sleep286188-21systemd-journal19:55:542
1293952130,5sleep0129439-21ld19:55:240
4769592121,8sleep2477007-21ntpq23:50:242
4699332121,8sleep2469940-21ssh23:46:042
4631112120,2sleep20-21swapper/223:43:552
3542042121,4sleep2354300-21fschecks_time22:35:152
3209852121,7sleep2320998-21pool-022:11:332
2934582120,9sleep1295263-21cut21:55:201
5412792110,8sleep1541281-21sshd-auth00:34:541
4544262110,1sleep10-21swapper/123:36:371
3931872111,7sleep2392899-21sendmail-msp23:00:122
3454412111,3sleep1345447-21ssh22:28:561
2847132110,5sleep0286308-21kthreadcore21:50:180
1128562110,8sleep1114085-21grep19:45:181
632282102,4sleep30-21swapper/319:05:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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