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2026-05-30 - 07:09
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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
Characteristics of the 792 highest latencies:
System rackeslot2.osadl.org (updated Sat May 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130081221080,1sleep3551rcuc/319:15:033
17216052730,2sleep30-21swapper/300:14:513
14579322700,1sleep10-21swapper/121:19:531
13524712380,1sleep11352473-21grep19:59:461
16377412280,2sleep11637695-21ssh23:19:501
1292318992622,1cyclictest0-21swapper/221:50:002
1292316992522,2cyclictest1612448-21/usr/sbin/munin23:00:010
1292318992421,1cyclictest0-21swapper/223:05:012
1292317992418,2cyclictest191rcu_preempt21:54:521
1292316992421,2cyclictest1376809-21systemd-run20:15:010
1292316992420,2cyclictest0-21swapper/021:25:010
1292316992316,6cyclictest0-21swapper/023:35:010
383433398220,2rtkit-daemon1598737-21ssh22:53:440
1292317992219,2cyclictest1695300-21sh23:55:011
1292317992219,2cyclictest1-21systemd23:30:011
1292316992219,2cyclictest0-21swapper/000:10:040
1292316992218,3cyclictest1755854-21apt-get00:35:010
1292316992213,5cyclictest1722068-21kthreadcore00:14:520
129231699220,19cyclictest1657784-21sh23:30:020
383433398210,4rtkit-daemon3851702-21mta-sts-daemon00:37:420
383433398210,3rtkit-daemon3851703-21mta-sts-daemon21:01:140
13798762210,2sleep0171ktimers/020:19:520
1292318992119,1cyclictest0-21swapper/223:15:022
1292318992118,1cyclictest0-21swapper/223:55:012
1292318992118,1cyclictest0-21swapper/222:35:012
1292318992118,1cyclictest0-21swapper/219:35:002
1292317992118,2cyclictest1290-21dbus-daemon23:00:001
1292317992114,3cyclictest1519489-21kthreadcore21:59:531
1292316992118,2cyclictest1740135-21ls00:25:000
1292316992118,2cyclictest1357744-21latency_hist20:00:000
1292316992118,2cyclictest1-21systemd20:25:020
1292316992111,6cyclictest0-21swapper/023:20:020
1292316992111,6cyclictest0-21swapper/022:40:000
383433398200,2rtkit-daemon3851705-21mta-sts-daemon21:50:120
1292318992018,1cyclictest0-21swapper/220:55:032
1292318992017,1cyclictest0-21swapper/219:30:002
1292317992017,2cyclictest1448598-21cut21:14:491
1292317992014,2cyclictest383433398rtkit-daemon22:44:301
1292316992018,1cyclictest1702990-21/usr/sbin/munin00:00:010
1292316992011,5cyclictest1487625-21kthreadcore21:39:530
129231699200,3cyclictest1703776-21ssh00:02:090
383433398190,2rtkit-daemon0-21swapper/019:51:290
383433398190,2rtkit-daemon0-21swapper/019:23:580
2649091190,2phc2sys0-21swapper/322:55:003
2649091190,2phc2sys0-21swapper/321:28:223
1292318991916,1cyclictest0-21swapper/223:00:012
1292318991916,1cyclictest0-21swapper/222:24:582
1292317991916,2cyclictest3827634-1atopacctd00:06:371
1292317991916,2cyclictest1760988-21kthreadcore00:39:521
1292317991916,2cyclictest1619376-21latency_hist23:05:011
1292317991916,2cyclictest1574349-21grep22:35:011
1292317991916,2cyclictest1566799-21sh22:30:011
1292317991916,2cyclictest1544116-21idleruntime-cro22:15:001
1292317991916,2cyclictest1298676-21latency_hist19:15:011
1292317991916,2cyclictest0-21swapper/120:55:011
1292317991915,3cyclictest1-21systemd23:31:581
1292317991914,2cyclictest134050irq/121-eno121:34:551
129231699199,6cyclictest0-21swapper/021:50:000
129231699198,6cyclictest0-21swapper/023:05:020
1292316991916,2cyclictest3824567-21rs:main0
383433398180,2rtkit-daemon0-21swapper/020:04:330
2649091189,2phc2sys0-21swapper/323:44:483
2649091180,3phc2sys0-21swapper/320:54:593
1292318991816,1cyclictest0-21swapper/200:10:032
1292318991815,1cyclictest0-21swapper/223:15:472
1292318991815,1cyclictest0-21swapper/221:44:482
1292318991815,1cyclictest0-21swapper/221:30:002
1292318991815,1cyclictest0-21swapper/221:10:022
1292318991815,1cyclictest0-21swapper/219:14:462
1292318991814,2cyclictest0-21swapper/222:15:002
1292317991815,2cyclictest3824565-21in:imuxsock22:15:481
1292317991815,2cyclictest3824565-21in:imuxsock20:45:011
1292317991815,2cyclictest1402295-21systemd-run20:35:031
1292317991815,2cyclictest1364003-21grep20:05:001
1292317991815,2cyclictest1345345-21systemd-run19:50:001
1292317991815,2cyclictest0-21swapper/121:10:001
1292317991815,2cyclictest0-21swapper/100:20:021
1292317991813,3cyclictest1339209-21latency_hist19:45:011
129231799181,10cyclictest1290-21dbus-daemon23:25:001
1292316991815,2cyclictest1743091-21gltestperf00:29:490
1292316991815,2cyclictest1298788-21/usr/sbin/munin19:15:010
1292316991811,6cyclictest0-21swapper/023:10:020
1292316991811,4cyclictest3834328-21sendmail-mta22:29:170
1292316991810,4cyclictest1450876-21kthreadcore21:14:540
129231699180,5cyclictest1457629-21grep21:19:540
129231699180,17cyclictest1345262-21awk19:50:000
2649091170,2phc2sys0-21swapper/321:21:253
1292318991715,1cyclictest0-21swapper/222:50:022
1292318991715,1cyclictest0-21swapper/219:45:012
1292318991714,1cyclictest0-21swapper/222:44:512
1292318991714,1cyclictest0-21swapper/222:16:462
1292318991714,1cyclictest0-21swapper/221:54:522
1292318991714,1cyclictest0-21swapper/220:39:532
1292318991713,2cyclictest0-21swapper/222:10:002
1292317991714,2cyclictest1524027-21fschecks_time22:04:491
1292317991714,2cyclictest1491239-21uptime21:40:021
1292317991714,2cyclictest1476071-21grep21:30:001
1292317991714,2cyclictest1468677-21sed21:25:001
1292317991711,5cyclictest0-21swapper/119:40:001
1292317991711,2cyclictest134050irq/121-eno100:24:571
1292316991715,1cyclictest0-21swapper/022:50:010
1292316991714,2cyclictest3851703-21mta-sts-daemon23:49:440
1292316991714,2cyclictest1634883-21systemd-run23:15:010
1292316991714,2cyclictest1483315-21/usr/sbin/munin21:35:000
1292316991714,2cyclictest0-21swapper/022:10:010
1292316991712,3cyclictest3824565-21in:imuxsock23:40:020
1292316991711,5cyclictest1528354-21needreboot22:04:550
2649091160,3phc2sys0-21swapper/323:45:343
2649091160,3phc2sys0-21swapper/321:58:413
2649091160,2phc2sys0-21swapper/322:44:223
2649091160,2phc2sys0-21swapper/322:14:113
2649091160,1phc2sys0-21swapper/321:17:443
1292318991614,1cyclictest0-21swapper/223:45:022
1292318991614,1cyclictest0-21swapper/221:25:002
1292318991614,1cyclictest0-21swapper/220:15:002
1292318991614,1cyclictest0-21swapper/200:20:012
1292318991613,1cyclictest0-21swapper/223:40:002
1292318991613,1cyclictest0-21swapper/223:34:552
1292318991613,1cyclictest0-21swapper/221:04:512
1292318991613,1cyclictest0-21swapper/220:44:552
1292318991613,1cyclictest0-21swapper/220:24:562
1292318991613,1cyclictest0-21swapper/220:09:522
1292318991613,1cyclictest0-21swapper/219:24:522
1292318991613,1cyclictest0-21swapper/200:39:462
1292318991613,1cyclictest0-21swapper/200:04:502
1292317991613,2cyclictest1319730-21http19:30:001
1292317991613,2cyclictest0-21swapper/123:10:001
1292317991613,2cyclictest0-21swapper/100:05:001
1292317991611,2cyclictest3851704-21mta-sts-daemon23:48:051
1292317991611,2cyclictest3851703-21mta-sts-daemon23:56:161
129231699166,5cyclictest1414531-21latency_hist20:45:000
129231699165,6cyclictest0-21swapper/022:34:490
1292316991613,2cyclictest1733307-21systemd-run00:20:010
1292316991613,2cyclictest1680461-21grep23:45:020
1292316991613,2cyclictest1493737-21sed21:44:500
1292316991613,2cyclictest1427141-21apt-key20:55:010
1292316991613,2cyclictest1290-21dbus-daemon20:40:020
2649091150,3phc2sys0-21swapper/300:22:473
2649091150,1phc2sys0-21swapper/323:55:173
129231899156,6cyclictest0-21swapper/200:29:452
1292318991513,1cyclictest0-21swapper/223:49:522
1292318991513,1cyclictest0-21swapper/222:03:072
1292318991513,1cyclictest0-21swapper/221:40:022
1292318991513,1cyclictest0-21swapper/221:35:012
1292318991513,1cyclictest0-21swapper/220:59:522
1292318991513,1cyclictest0-21swapper/220:49:522
1292318991513,1cyclictest0-21swapper/220:20:002
1292318991513,1cyclictest0-21swapper/219:38:372
1292318991513,1cyclictest0-21swapper/200:25:002
1292318991512,2cyclictest0-21swapper/221:59:532
1292318991512,1cyclictest0-21swapper/223:29:532
1292318991512,1cyclictest0-21swapper/222:29:552
1292318991512,1cyclictest0-21swapper/221:19:542
1292318991512,1cyclictest0-21swapper/220:34:512
1292318991512,1cyclictest0-21swapper/220:29:512
1292318991512,1cyclictest0-21swapper/219:54:542
1292318991512,1cyclictest0-21swapper/219:19:532
129231799154,6cyclictest1434385-21aten2.4-expect21:04:471
1292317991513,1cyclictest3851705-21mta-sts-daemon00:30:381
1292317991513,1cyclictest1390103-21aten_repower_po20:29:471
1292317991512,2cyclictest3834332-21rtkit-daemon22:45:411
1292317991512,2cyclictest3827634-1atopacctd20:19:511
1292317991512,2cyclictest1491573-21diskmemload21:40:241
1292317991511,3cyclictest1747795-21timerandwakeup00:30:001
1292317991511,3cyclictest1612461-21kworker/u16:3+nfsiod23:14:401
1292317991511,3cyclictest1554018-21sh22:24:471
1292317991511,3cyclictest1108076-21kworker/u16:1+nfsiod21:46:231
129231699159,5cyclictest3851704-21mta-sts-daemon20:59:580
129231699158,6cyclictest3851698-21mta-sts-daemon22:16:320
129231699156,4cyclictest0-21swapper/022:44:210
129231699151,9cyclictest0-21swapper/021:26:360
129231699151,4cyclictest3851702-21mta-sts-daemon21:07:140
1292316991513,1cyclictest3851702-21mta-sts-daemon22:22:090
1292316991512,2cyclictest1321344-21gltestperf19:34:500
1292316991512,2cyclictest1292142-21latencyplot19:15:030
1292316991510,4cyclictest3851705-21mta-sts-daemon20:09:480
2649091141,6phc2sys0-21swapper/320:19:473
2649091140,2phc2sys0-21swapper/323:29:243
2649091140,2phc2sys0-21swapper/323:00:483
1292318991412,1cyclictest0-21swapper/223:59:542
1292318991412,1cyclictest0-21swapper/223:24:552
1292318991412,1cyclictest0-21swapper/221:14:492
1292318991412,1cyclictest0-21swapper/219:50:012
1292318991411,1cyclictest0-21swapper/219:59:492
1292318991411,1cyclictest0-21swapper/200:32:022
129231799148,2cyclictest134050irq/121-eno123:35:561
1292317991412,1cyclictest0-21swapper/119:20:021
1292317991411,2cyclictest3851702-21mta-sts-daemon00:10:291
1292317991411,2cyclictest1597747-21kworker/u16:2-events_unbound22:53:351
1292317991411,2cyclictest1376992-21latency_hist20:15:011
1292317991411,2cyclictest1292314-21cyclictest19:34:541
1292317991410,3cyclictest3851705-21mta-sts-daemon22:09:391
1292317991410,3cyclictest3824500-21cron19:55:001
1292317991410,3cyclictest1404361-21kthreadcore20:39:531
1292317991410,3cyclictest1386378-21kthreadcore20:24:531
1292317991410,3cyclictest1365408-21gltestperf20:09:491
1292317991410,3cyclictest1309175-21kthreadcore19:24:511
129231799140,3cyclictest0-21swapper/122:38:471
129231699147,2cyclictest0-21swapper/021:55:370
129231699145,5cyclictest0-21swapper/020:26:100
129231699144,5cyclictest1420775-21perf20:50:000
1292316991411,2cyclictest3851704-21mta-sts-daemon23:23:060
1292316991411,2cyclictest1339062-21systemd-run19:45:000
1292316991411,2cyclictest1292314-21cyclictest23:54:550
2649091130,6phc2sys0-21swapper/320:29:453
2649091130,3phc2sys0-21swapper/319:14:443
2649091130,2phc2sys0-21swapper/322:38:293
2649091130,2phc2sys0-21swapper/322:25:183
2649091130,2phc2sys0-21swapper/322:25:023
2649091130,2phc2sys0-21swapper/321:44:183
1292318991311,1cyclictest0-21swapper/223:07:572
1292318991311,1cyclictest0-21swapper/222:54:452
1292318991311,1cyclictest0-21swapper/222:39:462
1292318991311,1cyclictest0-21swapper/200:10:042
1292318991310,1cyclictest0-21swapper/220:04:532
129231799138,4cyclictest3851702-21mta-sts-daemon20:55:131
1292317991310,2cyclictest1676001-21kthreadcore23:44:511
1292317991310,2cyclictest1415477-21cpuspeed_turbos20:49:471
1292316991311,1cyclictest3851704-21mta-sts-daemon22:11:500
1292316991310,2cyclictest1397744-21kernelversion20:34:520
2649091122,2phc2sys0-21swapper/323:17:203
2649091120,3phc2sys0-21swapper/321:39:343
2649091120,3phc2sys0-21swapper/300:04:473
2649091120,1phc2sys0-21swapper/323:52:543
15130012124,2sleep30-21swapper/321:54:553
1292318991210,1cyclictest0-21swapper/219:10:022
129231699126,5cyclictest3851705-21mta-sts-daemon19:25:420
129231699120,7cyclictest1292396-21latency_hist19:10:010
2649091111,2phc2sys0-21swapper/321:10:233
2649091110,4phc2sys0-21swapper/323:14:433
2649091110,2phc2sys0-21swapper/323:37:083
2649091110,2phc2sys0-21swapper/322:45:293
2649091110,2phc2sys0-21swapper/322:33:323
2649091110,2phc2sys0-21swapper/322:00:053
2649091110,2phc2sys0-21swapper/321:48:313
2649091110,1phc2sys0-21swapper/322:56:523
2649091110,1phc2sys0-21swapper/320:24:053
2649091110,1phc2sys0-21swapper/319:55:523
2649091110,1phc2sys0-21swapper/319:29:073
2649091110,1phc2sys0-21swapper/319:23:383
2649091110,1phc2sys0-21swapper/300:30:173
129231799111,4cyclictest1292157-21latency_hist19:10:031
2649091103,1phc2sys0-21swapper/320:31:553
2649091101,2phc2sys0-21swapper/321:09:563
2649091101,2phc2sys0-21swapper/320:44:463
2649091101,2phc2sys0-21swapper/320:14:483
2649091101,2phc2sys0-21swapper/319:34:563
2649091101,2phc2sys0-21swapper/319:09:523
2649091101,2phc2sys0-21swapper/300:09:523
2649091100,3phc2sys0-21swapper/319:40:023
2649091100,2phc2sys0-21swapper/323:33:383
2649091100,2phc2sys0-21swapper/323:09:553
2649091100,2phc2sys0-21swapper/321:31:033
2649091100,2phc2sys0-21swapper/320:09:553
2649091100,2phc2sys0-21swapper/300:36:423
2649091100,2phc2sys0-21swapper/300:28:063
2649091100,2phc2sys0-21swapper/300:15:453
264909191,3phc2sys0-21swapper/319:44:453
264909191,2phc2sys0-21swapper/320:04:503
264909190,2phc2sys0-21swapper/323:20:253
264909190,2phc2sys0-21swapper/322:15:173
264909190,2phc2sys0-21swapper/322:07:353
264909190,2phc2sys0-21swapper/321:04:473
264909190,2phc2sys0-21swapper/320:59:563
264909190,2phc2sys0-21swapper/320:38:483
264909190,2phc2sys0-21swapper/319:50:073
264909181,2phc2sys0-21swapper/320:46:303
264909180,2phc2sys0-21swapper/319:45:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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