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2026-04-06 - 11:52
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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 rack1slot3.osadl.org (updated Mon Apr 06, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37671099140,12cyclictest0-21swapper/319:40:103
37671099130,11cyclictest0-21swapper/322:10:123
37671099130,11cyclictest0-21swapper/319:25:113
37671099120,8cyclictest0-21swapper/322:35:123
37671099120,11cyclictest0-21swapper/320:40:003
37671099120,11cyclictest0-21swapper/320:05:013
37671099120,11cyclictest0-21swapper/300:30:203
37671099120,0cyclictest0-21swapper/320:10:013
37671099120,0cyclictest0-21swapper/319:45:123
376710991111,0cyclictest0-21swapper/323:25:013
37671099110,10cyclictest0-21swapper/321:20:183
37671099110,0cyclictest0-21swapper/322:45:103
37671099110,0cyclictest0-21swapper/320:30:173
376710991010,0cyclictest0-21swapper/323:15:123
376710991010,0cyclictest0-21swapper/320:50:173
376710991010,0cyclictest0-21swapper/319:20:163
37671099100,9cyclictest0-21swapper/323:50:013
37671099100,9cyclictest0-21swapper/322:55:013
37671099100,9cyclictest0-21swapper/321:50:013
37671099100,0cyclictest0-21swapper/323:40:213
37671099100,0cyclictest0-21swapper/323:20:193
37671099100,0cyclictest0-21swapper/320:55:173
3767109999,0cyclictest0-21swapper/322:30:113
3767109999,0cyclictest0-21swapper/321:35:123
3767109999,0cyclictest0-21swapper/321:10:123
3767109999,0cyclictest0-21swapper/320:05:113
3767109999,0cyclictest0-21swapper/300:15:163
3767109998,0cyclictest0-21swapper/321:40:123
3767109998,0cyclictest0-21swapper/321:30:193
3767109998,0cyclictest0-21swapper/320:20:103
3767109998,0cyclictest0-21swapper/300:25:123
3767109990,8cyclictest0-21swapper/322:30:003
3767109990,8cyclictest0-21swapper/300:10:013
3767109990,1cyclictest0-21swapper/322:40:113
3767109988,0cyclictest0-21swapper/323:45:183
3767109988,0cyclictest0-21swapper/323:10:173
3767109988,0cyclictest0-21swapper/323:05:173
3767109988,0cyclictest0-21swapper/321:00:003
3767109980,0cyclictest0-21swapper/321:50:183
3767109980,0cyclictest0-21swapper/319:10:163
3767109977,0cyclictest0-21swapper/322:05:113
3767109977,0cyclictest0-21swapper/322:01:413
3767109977,0cyclictest0-21swapper/321:15:183
3767109977,0cyclictest0-21swapper/321:05:183
3767109977,0cyclictest0-21swapper/320:45:093
3767109977,0cyclictest0-21swapper/320:40:113
3767109977,0cyclictest0-21swapper/319:50:183
3767109977,0cyclictest0-21swapper/319:35:163
3767109976,1cyclictest0-21swapper/322:20:123
3767109976,0cyclictest0-21swapper/323:35:013
3767109975,0cyclictest0-21swapper/300:00:013
3767109970,7cyclictest0-21swapper/300:35:213
3767109970,6cyclictest0-21swapper/322:15:163
376352271,1sleep20-21swapper/219:07:422
14039870,1rtkit-daemon0-21swapper/022:51:510
430203260,4sleep1430259-21latency_hist21:25:011
3767109966,0cyclictest0-21swapper/323:35:113
3767109966,0cyclictest0-21swapper/323:00:123
3767109966,0cyclictest0-21swapper/322:55:173
3767109966,0cyclictest0-21swapper/300:00:103
3767109965,0cyclictest0-21swapper/321:25:193
3767109965,0cyclictest0-21swapper/321:25:183
3767109965,0cyclictest0-21swapper/320:15:183
3767109965,0cyclictest0-21swapper/319:30:173
3767109960,5cyclictest0-21swapper/300:10:193
374858261,3sleep30-21swapper/319:05:033
380985250,5sleep20-21swapper/219:17:502
3767109955,0cyclictest0-21swapper/321:55:153
3767109951,2cyclictest0-21swapper/300:20:113
3767109951,0cyclictest0-21swapper/319:15:163
14039850,2rtkit-daemon424133-21diskmemload21:36:430
14039850,2rtkit-daemon0-21swapper/019:05:160
3767109940,3cyclictest0-21swapper/319:55:103
3767109940,2cyclictest0-21swapper/320:25:123
375915241,1sleep10-21swapper/119:05:211
14039840,2rtkit-daemon766-21snmpd21:54:280
14039840,2rtkit-daemon493685-21diskstats23:55:150
14039840,2rtkit-daemon448616-21ssh22:07:250
14039840,2rtkit-daemon424133-21diskmemload23:45:290
14039840,2rtkit-daemon424133-21diskmemload00:10:300
14039840,2rtkit-daemon378747-21munin-node21:23:480
14039840,2rtkit-daemon1-21systemd23:18:590
14039840,2rtkit-daemon1-21systemd20:14:420
14039840,2rtkit-daemon1-21systemd00:28:560
472385230,1sleep1472415-21apt-get23:05:121
458696230,2sleep2458904-21timerwakeupswit22:30:182
453608230,1sleep0453634-21apt-get22:20:120
416182230,1sleep2416208-21apt-get20:50:122
14039830,2rtkit-daemon766-21snmpd22:35:160
14039830,2rtkit-daemon766-21snmpd19:10:270
14039830,2rtkit-daemon691-21gmain22:16:500
14039830,2rtkit-daemon1410-21sendmail-mta22:30:200
14039830,2rtkit-daemon1410-21sendmail-mta19:27:160
14039830,2rtkit-daemon1-21systemd21:26:480
14039830,2rtkit-daemon1-21systemd21:26:470
14039830,1rtkit-daemon772-21lldpd20:53:470
14039830,1rtkit-daemon769-21ntpd21:01:020
14039830,1rtkit-daemon769-21ntpd19:30:420
14039830,1rtkit-daemon766-21snmpd23:50:260
14039830,1rtkit-daemon766-21snmpd23:25:280
14039830,1rtkit-daemon766-21snmpd22:13:150
14039830,1rtkit-daemon766-21snmpd00:22:020
14039830,1rtkit-daemon622-21wpa_supplicant21:41:460
14039830,1rtkit-daemon622-21wpa_supplicant21:08:350
14039830,1rtkit-daemon488313-21pool-udisksd23:40:370
14039830,1rtkit-daemon424133-21diskmemload22:46:270
14039830,1rtkit-daemon378747-21munin-node23:35:030
14039830,1rtkit-daemon378747-21munin-node22:00:530
14039830,1rtkit-daemon328-21plymouthd21:45:080
14039830,1rtkit-daemon328-21plymouthd21:19:500
14039830,1rtkit-daemon328-21plymouthd20:10:010
14039830,1rtkit-daemon328-21plymouthd00:35:160
14039830,1rtkit-daemon328-21plymouthd00:31:330
14039830,1rtkit-daemon328-21plymouthd00:16:040
14039830,1rtkit-daemon1410-21sendmail-mta23:34:060
14039830,1rtkit-daemon1-21systemd23:01:390
14039830,1rtkit-daemon1-21systemd22:55:430
14039830,1rtkit-daemon1-21systemd22:41:260
14039830,1rtkit-daemon1-21systemd21:57:300
14039830,1rtkit-daemon1-21systemd21:33:090
14039830,1rtkit-daemon1-21systemd21:10:260
14039830,1rtkit-daemon1-21systemd20:36:460
14039830,0rtkit-daemon0-21swapper/020:30:210
14039830,0rtkit-daemon0-21swapper/019:15:420
508236220,1sleep2508475-21cpuspeed_turbos00:30:132
505799220,1sleep10-21swapper/100:24:571
495813220,1sleep10-21swapper/100:00:141
493482220,1sleep1493690-21cat23:55:151
490887220,1sleep2490889-21ssh23:49:472
476020220,0sleep1341rcuc/123:12:311
470885220,1sleep1471054-21ntpq23:00:151
468649220,1sleep1468802-21sed22:55:141
455204220,1sleep1455208-21ssh22:22:571
450989220,1sleep2451010-21apt-get22:15:022
443625220,1sleep1443726-21awk21:55:151
400701220,1sleep20-21swapper/220:10:142
396908220,1sleep2397179-21df_inode20:00:132
381155220,1sleep0381157-21cron19:20:010
14039820,1rtkit-daemon769-21ntpd20:25:350
14039820,1rtkit-daemon691-21gmain20:55:100
14039820,1rtkit-daemon418-21systemd-journal20:00:010
14039820,1rtkit-daemon1-21systemd19:51:420
14039820,1rtkit-daemon1-21systemd19:40:150
14039820,0rtkit-daemon328-21plymouthd22:25:090
14039820,0rtkit-daemon328-21plymouthd20:20:010
14039820,0rtkit-daemon328-21plymouthd00:00:310
14039820,0rtkit-daemon0-21swapper/023:20:010
14039820,0rtkit-daemon0-21swapper/023:10:190
14039820,0rtkit-daemon0-21swapper/023:05:160
14039820,0rtkit-daemon0-21swapper/020:45:220
14039820,0rtkit-daemon0-21swapper/020:40:110
14039820,0rtkit-daemon0-21swapper/020:15:460
14039820,0rtkit-daemon0-21swapper/019:55:150
14039820,0rtkit-daemon0-21swapper/019:45:050
14039820,0rtkit-daemon0-21swapper/019:35:020
14039820,0rtkit-daemon0-21swapper/000:05:160
510669210,0sleep10-21swapper/100:35:181
510064210,0sleep20-21swapper/200:35:022
509615210,0sleep10-21swapper/100:31:521
506101210,0sleep20-21swapper/200:25:132
506061210,0sleep10-21swapper/100:25:131
503443210,0sleep20-21swapper/200:20:022
503431210,0sleep10-21swapper/100:19:561
502914210,0sleep20-21swapper/200:15:202
499638210,0sleep20-21swapper/200:10:172
498094210,0sleep20-21swapper/200:05:172
497448210,0sleep10-21swapper/100:05:121
495365210,0sleep20-21swapper/200:00:112
495080210,0sleep20-21swapper/200:00:002
492148210,0sleep20-21swapper/223:50:202
492016210,0sleep10-21swapper/123:50:181
490639210,0sleep10-21swapper/123:47:341
486997210,0sleep20-21swapper/223:40:072
486734210,0sleep10-21swapper/123:40:021
486246210,0sleep20-21swapper/223:35:422
484995210,0sleep10-21swapper/123:35:131
483473210,0sleep10-21swapper/123:30:171
482957210,0sleep20-21swapper/223:30:142
481352210,0sleep10-21swapper/123:25:171
480859210,0sleep20-21swapper/223:25:142
480414210,0sleep10-21swapper/123:24:241
480155210,0sleep20-21swapper/223:22:052
478109210,0sleep10-21swapper/123:17:371
476302210,0sleep20-21swapper/223:15:012
474479210,0sleep2474581-21hostname23:10:132
472418210,0sleep20-21swapper/223:05:122
471706210,0sleep20-21swapper/223:01:132
469329210,0sleep20-21swapper/222:55:192
467127210,0sleep10-21swapper/122:50:191
466672210,0sleep20-21swapper/222:50:162
465505210,0sleep20-21swapper/222:46:482
464038210,0sleep10-21swapper/122:45:111
462114210,0sleep10-21swapper/122:40:131
461423210,0sleep20-21swapper/222:37:432
460627210,0sleep10-21swapper/122:35:181
457895210,0sleep10-21swapper/122:30:131
457281210,0sleep20-21swapper/222:27:532
455924210,0sleep10-21swapper/122:25:131
453761210,0sleep20-21swapper/222:20:142
452933210,0sleep20-21swapper/222:16:292
452024210,0sleep10-21swapper/122:15:161
449692210,0sleep10-21swapper/122:10:161
447523210,0sleep10-21swapper/122:05:161
447082210,0sleep20-21swapper/222:05:132
445557210,0sleep10-21swapper/122:00:201
444999210,0sleep20-21swapper/222:00:122
443076210,0sleep20-21swapper/221:55:122
442399210,0sleep10-21swapper/121:52:501
440814210,0sleep20-21swapper/221:50:112
440125210,0sleep20-21swapper/221:46:082
438902210,0sleep10-21swapper/121:45:151
437546210,0sleep10-21swapper/121:40:181
434926210,0sleep20-21swapper/221:35:142
434297210,0sleep10-21swapper/121:35:011
432725210,0sleep20-21swapper/221:30:152
432236210,0sleep10-21swapper/121:30:021
431068210,0sleep10-21swapper/121:25:161
431068210,0sleep10-21swapper/121:25:161
428513210,0sleep20-21swapper/221:20:142
426827210,0sleep10-21swapper/121:15:161
426396210,0sleep20-21swapper/221:15:132
425122210,0sleep20-21swapper/221:10:182
422520210,0sleep20-21swapper/221:05:132
422461210,0sleep10-21swapper/121:05:121
420993210,0sleep20-21swapper/221:00:162
419098210,0sleep20-21swapper/220:55:172
416604210,0sleep10-21swapper/120:50:141
415557210,0sleep10-21swapper/120:45:191
410521210,0sleep20-21swapper/220:35:142
409446210,0sleep10-21swapper/120:30:181
408514210,0sleep20-21swapper/220:30:112
405461210,0sleep20-21swapper/220:20:182
404709210,0sleep10-21swapper/120:20:131
402520210,0sleep20-21swapper/220:15:142
402244210,0sleep10-21swapper/120:15:011
400589210,0sleep10-21swapper/120:10:121
399460210,0sleep20-21swapper/220:05:172
399378210,0sleep10-21swapper/120:05:171
396782210,0sleep10-21swapper/120:00:121
395632210,0sleep20-21swapper/219:55:162
394863210,0sleep10-21swapper/119:55:111
394578210,0sleep20-21swapper/219:55:012
391002210,0sleep20-21swapper/219:45:122
389119210,0sleep20-21swapper/219:40:112
389090210,0sleep10-21swapper/119:40:101
387591210,0sleep10-21swapper/119:35:151
386221210,0sleep10-21swapper/119:30:171
385764210,0sleep20-21swapper/219:30:152
384894210,0sleep10-21swapper/119:28:421
384226210,0sleep20-21swapper/219:25:182
382850210,0sleep10-21swapper/119:21:581
381855210,0sleep20-21swapper/219:20:152
378517210,0sleep10-21swapper/119:15:011
378180210,0sleep20-21swapper/219:10:422
499513200,0sleep10-21swapper/100:10:041
461941200,0sleep20-21swapper/222:40:022
436636200,0sleep20-21swapper/221:40:032
430262200,0sleep20-21swapper/221:25:022
430262200,0sleep20-21swapper/221:25:012
424365200,0sleep10-21swapper/121:10:051
420540200,0sleep10-21swapper/121:00:031
418345200,0sleep10-21swapper/120:55:041
414261200,0sleep20-21swapper/220:45:032
412350200,0sleep20-21swapper/220:40:042
412349200,0sleep10-21swapper/120:40:031
410415200,0sleep10-21swapper/120:35:011
406586200,0sleep20-21swapper/220:25:032
406091200,0sleep10-21swapper/120:25:021
392903200,0sleep10-21swapper/119:50:041
390991200,0sleep10-21swapper/119:45:031
387148200,0sleep20-21swapper/219:35:042
376535200,0sleep10-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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