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2026-08-01 - 13:41
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sat Aug 01, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120630121050,2sleep30-21swapper/300:25:583
106150721050,3sleep30-21swapper/322:45:543
10056202720,1sleep01005618-21ssh22:07:350
768884992421,1cyclictest0-21swapper/223:05:012
768884992321,1cyclictest0-21swapper/221:45:022
768884992320,1cyclictest0-21swapper/200:25:012
768882992320,2cyclictest759-1atopacctd21:20:010
768882992320,2cyclictest1177311-21grep00:05:010
768882992315,7cyclictest0-21swapper/022:40:010
768883992219,2cyclictest886901-21dump-pmu-power20:45:001
768883992219,2cyclictest1216365-21cron00:35:011
768883992118,2cyclictest1-21systemd22:20:021
768883992118,2cyclictest0-21swapper/100:10:021
768882992118,2cyclictest774988-21open_inodes19:15:010
768882992111,6cyclictest0-21swapper/022:00:020
768883992017,2cyclictest1006813-21munin-run22:10:011
768883992017,2cyclictest0-21swapper/119:15:021
768883992013,3cyclictest981073-21kthreadcore21:50:581
768883992012,3cyclictest1306-21mta-sts-daemon23:58:211
768883992011,4cyclictest964055-21kthreadcore21:40:561
76888299209,6cyclictest0-21swapper/000:10:010
768882992017,2cyclictest969755-21systemd-run21:45:020
768882992017,2cyclictest1155112-21grep23:50:010
768882992013,6cyclictest0-21swapper/023:45:010
768882992012,6cyclictest0-21swapper/023:30:020
768882992012,4cyclictest1134217-21hddtemp_smartct23:35:530
768882992010,5cyclictest0-21swapper/022:52:150
1157598200,3rtkit-daemon1306-21mta-sts-daemon20:56:190
1157598200,3rtkit-daemon1300-21mta-sts-daemon19:25:440
768884991916,1cyclictest0-21swapper/220:50:012
768883991916,2cyclictest893166-21apt-key20:50:011
768883991916,2cyclictest783513-21gpgconf19:20:011
768883991916,2cyclictest1073498-21unin-run22:55:021
768883991915,3cyclictest768881-21cyclictest19:20:541
768883991912,2cyclictest1157598rtkit-daemon22:43:361
76888299198,7cyclictest1307-21mta-sts-daemon23:04:200
768882991916,2cyclictest0-21swapper/021:15:010
768882991916,2cyclictest0-21swapper/019:45:020
768882991911,5cyclictest1052981-21kthreadcore22:40:550
768884991816,1cyclictest0-21swapper/222:35:552
768884991815,1cyclictest0-21swapper/223:46:152
768884991815,1cyclictest0-21swapper/221:00:012
768884991810,2cyclictest0-21swapper/222:57:112
768883991815,2cyclictest991725-21cron22:00:001
768883991815,2cyclictest759-1atopacctd22:35:021
768883991815,2cyclictest0-21swapper/100:21:001
76888299182,5cyclictest1197444-21tr00:20:590
768882991815,2cyclictest977938-21cpuspeed_turbos21:50:520
768882991815,2cyclictest917470-21latency_hist21:10:010
768882991815,2cyclictest803160-21tr19:35:550
768882991815,2cyclictest783637-21sh19:20:020
768882991815,2cyclictest1118192-21apt-key23:25:020
768882991815,2cyclictest1093988-21grep23:06:000
76888299181,2cyclictest999287-21munin-run22:05:010
76888299180,3cyclictest961513-21ssh21:38:440
3240591180,2phc2sys0-21swapper/320:00:553
76888499171,9cyclictest0-21swapper/222:20:332
768884991715,1cyclictest0-21swapper/220:50:512
768884991715,1cyclictest0-21swapper/200:26:002
768884991714,1cyclictest0-21swapper/223:20:012
768884991714,1cyclictest0-21swapper/223:10:012
768884991714,1cyclictest0-21swapper/221:50:022
768884991714,1cyclictest0-21swapper/220:20:002
768884991714,1cyclictest0-21swapper/220:20:002
768884991714,1cyclictest0-21swapper/219:35:012
768884991714,1cyclictest0-21swapper/200:10:012
76888399179,3cyclictest0-21swapper/123:30:341
76888399179,3cyclictest0-21swapper/100:39:071
76888399179,3cyclictest0-21swapper/100:39:071
76888399179,3cyclictest0-21swapper/100:30:031
768883991714,2cyclictest1074855-21if_enp1s0.822:55:541
76888399170,3cyclictest1058967-21ssh22:45:341
76888299178,5cyclictest10930-21cron00:25:030
76888299177,9cyclictest1155508-21/usr/sbin/munin23:50:540
76888299177,6cyclictest0-21swapper/023:16:020
76888299177,5cyclictest0-21swapper/023:11:010
76888299176,4cyclictest1306-21mta-sts-daemon22:14:370
76888299175,2cyclictest191rcu_preempt21:20:340
768882991714,2cyclictest911418-21munin-plugin-st21:05:010
768882991714,2cyclictest1300-21mta-sts-daemon21:46:010
768882991714,2cyclictest1132897-21latency_hist23:35:000
768882991710,6cyclictest1306-21mta-sts-daemon22:27:110
3240591170,3phc2sys0-21swapper/323:51:083
3240591170,1phc2sys0-21swapper/322:56:173
1157598170,2rtkit-daemon0-21swapper/120:10:531
76888499161,9cyclictest0-21swapper/219:50:392
768884991614,1cyclictest0-21swapper/220:30:012
768884991614,1cyclictest0-21swapper/219:45:032
768884991613,1cyclictest0-21swapper/223:35:502
768884991613,1cyclictest0-21swapper/221:31:042
768884991613,1cyclictest0-21swapper/221:15:542
768884991613,1cyclictest0-21swapper/220:45:002
768884991613,1cyclictest0-21swapper/219:20:012
768884991613,1cyclictest0-21swapper/200:35:332
768884991613,1cyclictest0-21swapper/200:35:332
768884991613,1cyclictest0-21swapper/200:20:012
768884991613,1cyclictest0-21swapper/200:05:012
76888399168,3cyclictest0-21swapper/100:15:371
76888399166,4cyclictest0-21swapper/122:35:431
76888399164,4cyclictest0-21swapper/121:35:341
76888399164,3cyclictest844469-21munin-run20:10:011
768883991614,1cyclictest1117957-21apt-get23:25:011
768883991613,2cyclictest871284-21kthreadcore20:30:561
768883991613,2cyclictest768881-21cyclictest22:00:571
768883991613,2cyclictest664-21dbus-daemon21:50:011
768883991613,2cyclictest1081601-21/usr/sbin/munin23:01:011
768883991613,2cyclictest0-21swapper/121:15:021
768883991612,3cyclictest852177-21kthreadcore20:15:551
768883991612,3cyclictest852177-21kthreadcore20:15:551
768883991612,3cyclictest829399-21kthreadcore19:55:561
768883991612,2cyclictest0-21swapper/123:40:021
76888299169,6cyclictest1025239-21kthreadcore22:20:560
76888299168,7cyclictest0-21swapper/021:30:560
76888299163,9cyclictest1307-21mta-sts-daemon21:29:190
76888299161,5cyclictest0-21swapper/000:36:480
76888299161,5cyclictest0-21swapper/000:36:480
768882991614,1cyclictest0-21swapper/020:05:350
768882991613,2cyclictest876438-21kthreadcore20:35:570
768882991613,2cyclictest817005-21kthreadcore19:45:570
768882991613,2cyclictest759-1atopacctd19:55:020
768882991613,2cyclictest11574-21rtkit-daemon20:52:160
768882991613,2cyclictest1043689-21idleruntime-cro22:35:010
768882991613,2cyclictest0-21swapper/020:50:010
76888299161,10cyclictest1015495-21hddtemp_smartct22:15:540
3240591161,7phc2sys0-21swapper/319:15:343
3240591160,4phc2sys0-21swapper/322:09:013
3240591160,2phc2sys0-21swapper/323:26:283
3240591160,2phc2sys0-21swapper/322:12:573
768884991513,1cyclictest0-21swapper/222:10:012
768884991513,1cyclictest0-21swapper/221:30:022
768884991513,1cyclictest0-21swapper/219:20:562
768884991512,1cyclictest0-21swapper/223:25:562
768884991512,1cyclictest0-21swapper/222:30:012
768884991512,1cyclictest0-21swapper/221:50:522
768884991511,2cyclictest0-21swapper/220:20:592
768884991511,2cyclictest0-21swapper/220:12:322
768884991510,2cyclictest0-21swapper/220:00:562
76888399159,5cyclictest1309-21mta-sts-daemon23:27:201
76888399159,2cyclictest69250irq/121-eno123:10:081
76888399158,3cyclictest935262-21kthreadcore21:20:561
768883991512,2cyclictest947633-21sh21:30:131
768883991512,2cyclictest943074-21kthreadcore21:25:561
768883991512,2cyclictest932532-21apt-key21:20:021
768883991512,2cyclictest880433-21unixbench_singl20:36:041
768883991512,2cyclictest812069-21kthreadcore19:40:561
768883991512,2cyclictest804848-21kthreadcore19:35:571
768883991512,2cyclictest795215-21unixbench_multi19:26:031
768883991512,2cyclictest664-21dbus-daemon22:25:021
768883991512,2cyclictest1105620-21kthreadcore23:16:001
768883991512,2cyclictest1094220-21cat23:06:021
768883991510,4cyclictest590-21rpcbind20:24:151
768883991510,4cyclictest1076-21lldpd22:28:411
76888299158,5cyclictest268-21systemd-journal20:16:470
76888299158,5cyclictest268-21systemd-journal20:16:470
76888299156,8cyclictest0-21swapper/023:55:350
768882991512,2cyclictest862615-21cron20:25:000
768882991512,2cyclictest1309-21mta-sts-daemon00:33:360
768882991511,3cyclictest884377-21kthreadcore20:40:560
768882991511,3cyclictest1060973-21kthreadcore22:45:530
3240591150,2phc2sys0-21swapper/323:33:043
3240591150,2phc2sys0-21swapper/322:50:083
3240591150,2phc2sys0-21swapper/320:49:563
3240591150,1phc2sys0-21swapper/323:00:383
76888499141,8cyclictest0-21swapper/221:55:342
768884991412,1cyclictest0-21swapper/223:53:442
768884991412,1cyclictest0-21swapper/223:43:262
768884991412,1cyclictest0-21swapper/223:25:012
768884991411,1cyclictest0-21swapper/222:50:572
768884991411,1cyclictest0-21swapper/222:40:562
768884991411,1cyclictest0-21swapper/222:30:282
768884991411,1cyclictest0-21swapper/222:00:442
768884991411,1cyclictest0-21swapper/221:10:362
768884991411,1cyclictest0-21swapper/220:30:562
768884991411,1cyclictest0-21swapper/219:15:022
768884991410,2cyclictest0-21swapper/222:45:572
768884991410,2cyclictest0-21swapper/221:20:062
768884991410,2cyclictest0-21swapper/220:05:402
76888399149,4cyclictest774976-21munin-node20:29:541
76888399149,2cyclictest1306-21mta-sts-daemon23:53:091
76888399148,5cyclictest999337-21kworker/u16:3-rpciod22:14:451
76888399147,5cyclictest268-21systemd-journal20:55:001
768883991411,2cyclictest911378-21cron21:05:011
768883991411,2cyclictest819728-21unixbench-2d19:46:031
768883991411,2cyclictest769045-21munin-plugin-st19:10:021
768883991411,2cyclictest684-21systemd-logind23:50:011
768883991411,2cyclictest1182846-21kthreadcore00:10:531
768883991411,2cyclictest1171558-21irqrtprio00:00:551
76888399140,3cyclictest0-21swapper/123:42:491
76888299148,5cyclictest1075333-21kernelversion22:55:550
76888299146,6cyclictest1179908-21apt-get00:10:300
76888299145,5cyclictest0-21swapper/019:55:180
768882991411,2cyclictest867276-21kthreadcore20:25:580
768882991411,2cyclictest837654-21sendmail_mailqu20:01:030
768882991411,2cyclictest1188057-21cut00:15:520
768882991410,3cyclictest800789-21pmu-power19:30:570
768882991410,3cyclictest789107-21unixbench-2d19:21:030
3240591140,2phc2sys0-21swapper/322:20:563
3240591140,2phc2sys0-21swapper/321:54:093
3240591140,1phc2sys0-21swapper/320:58:413
3240591140,1phc2sys0-21swapper/320:51:533
76888499135,4cyclictest0-21swapper/223:10:352
768884991311,1cyclictest0-21swapper/223:30:512
768884991311,1cyclictest0-21swapper/222:11:002
768884991311,1cyclictest0-21swapper/221:05:572
768884991311,1cyclictest0-21swapper/221:00:562
768884991311,1cyclictest0-21swapper/220:35:582
768884991311,1cyclictest0-21swapper/219:40:032
768884991311,1cyclictest0-21swapper/200:30:552
768884991310,2cyclictest0-21swapper/219:55:562
768884991310,1cyclictest0-21swapper/223:55:212
768884991310,1cyclictest0-21swapper/222:15:452
768884991310,1cyclictest0-21swapper/221:40:012
76888399139,3cyclictest913074-21kthreadcore21:05:571
76888399139,3cyclictest904434-21pmu-power20:55:591
76888399139,3cyclictest822874-21kthreadcore19:51:011
768883991310,2cyclictest774976-21munin-node19:30:271
768883991310,2cyclictest1300-21mta-sts-daemon20:00:201
768882991311,1cyclictest847609-21kthreadcore20:11:030
768882991310,2cyclictest873023-21kthreadcore20:30:570
3240591133,2phc2sys0-21swapper/300:15:573
3240591131,6phc2sys0-21swapper/319:20:353
3240591130,2phc2sys0-21swapper/321:12:053
3240591130,1phc2sys0-21swapper/319:51:133
1157598130,4rtkit-daemon1076-21lldpd19:06:530
76888499129,1cyclictest0-21swapper/219:30:022
76888499120,8cyclictest1185530-21chrt00:11:022
3240591121,5phc2sys0-21swapper/323:20:343
3240591121,3phc2sys0-21swapper/322:30:563
3240591120,3phc2sys0-21swapper/323:42:373
3240591120,3phc2sys0-21swapper/323:35:423
3240591120,3phc2sys0-21swapper/321:20:343
3240591120,2phc2sys0-21swapper/321:28:233
3240591120,2phc2sys0-21swapper/321:15:333
3240591120,2phc2sys0-21swapper/320:20:303
3240591120,2phc2sys0-21swapper/300:38:303
3240591120,2phc2sys0-21swapper/300:38:303
3240591120,1phc2sys0-21swapper/323:14:583
3240591120,1phc2sys0-21swapper/321:06:483
9908412110,3sleep30-21swapper/321:57:213
76888499119,1cyclictest0-21swapper/219:45:562
3240591112,2phc2sys0-21swapper/322:36:133
3240591112,2phc2sys0-21swapper/322:03:513
3240591110,2phc2sys0-21swapper/321:35:373
3240591110,2phc2sys0-21swapper/320:42:343
3240591110,2phc2sys0-21swapper/319:35:343
3240591110,2phc2sys0-21swapper/300:24:143
3240591110,1phc2sys0-21swapper/323:58:063
3240591110,1phc2sys0-21swapper/320:35:183
76888499108,1cyclictest0-21swapper/219:10:012
3240591106,2phc2sys0-21swapper/322:42:443
3240591101,3phc2sys0-21swapper/321:45:343
3240591101,2phc2sys0-21swapper/323:45:523
3240591101,2phc2sys0-21swapper/323:16:423
3240591101,2phc2sys0-21swapper/320:16:023
3240591101,2phc2sys0-21swapper/320:16:023
3240591101,2phc2sys0-21swapper/320:10:573
3240591100,4phc2sys0-21swapper/319:55:333
3240591100,2phc2sys0-21swapper/322:25:513
3240591100,2phc2sys0-21swapper/322:17:293
3240591100,2phc2sys0-21swapper/320:35:023
3240591100,2phc2sys0-21swapper/319:46:003
3240591100,2phc2sys0-21swapper/300:33:133
3240591100,2phc2sys0-21swapper/300:07:403
11857282100,2sleep30-21swapper/300:11:363
324059191,2phc2sys0-21swapper/319:06:053
324059190,3phc2sys0-21swapper/319:15:023
324059190,2phc2sys0-21swapper/323:05:113
324059190,2phc2sys0-21swapper/321:40:063
324059190,2phc2sys0-21swapper/321:33:093
324059190,2phc2sys0-21swapper/320:05:483
324059190,2phc2sys0-21swapper/319:40:513
324059190,2phc2sys0-21swapper/319:30:503
324059190,2phc2sys0-21swapper/319:26:013
324059190,2phc2sys0-21swapper/300:01:033
324059180,3phc2sys0-21swapper/321:00:343
324059180,2phc2sys0-21swapper/320:25:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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