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2026-04-17 - 08:28
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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 376 highest latencies:
System rackeslot8.osadl.org (updated Fri Apr 17, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182885992825,1cyclictest0-21swapper/323:25:013
182885992825,1cyclictest0-21swapper/300:19:593
182885992522,1cyclictest0-21swapper/322:20:013
182885992319,1cyclictest0-21swapper/320:40:003
182885992219,1cyclictest0-21swapper/321:25:003
182885992118,1cyclictest0-21swapper/323:20:003
182885992118,1cyclictest0-21swapper/322:45:183
182885992118,1cyclictest0-21swapper/320:00:243
182885992117,1cyclictest0-21swapper/321:45:173
18288599211,15cyclictest243169-21chrt19:55:123
182885992110,7cyclictest6398852sleep300:24:343
4400172201,10sleep1440051-21/usr/sbin/munin22:15:141
182885992017,1cyclictest0-21swapper/300:30:233
18288599201,14cyclictest294187-21taskset20:33:293
18288599201,13cyclictest470764-21chrt22:35:113
6419712190,9sleep0643572-21cut00:25:200
2543352190,1sleep10-21swapper/120:00:191
182885991916,1cyclictest0-21swapper/323:35:243
182885991916,1cyclictest0-21swapper/322:40:023
182885991916,1cyclictest0-21swapper/321:55:193
182885991916,1cyclictest0-21swapper/321:25:103
182885991916,1cyclictest0-21swapper/320:25:143
182885991916,1cyclictest0-21swapper/320:25:013
182885991916,1cyclictest0-21swapper/319:50:153
182885991915,1cyclictest0-21swapper/323:15:013
18288599191,14cyclictest623999-21taskset00:12:553
18288599191,14cyclictest592676-21taskset23:51:543
18288599191,14cyclictest469380-21taskset22:31:513
18288599191,14cyclictest372134-21taskset21:30:163
18288599191,14cyclictest261981-21taskset20:08:233
18288599191,13cyclictest501439-21taskset22:55:013
18288599191,13cyclictest391925-21chrt21:40:473
182885991910,5cyclictest3134522chrt20:48:273
18288599182,12cyclictest216957-21taskset19:32:033
182885991815,1cyclictest0-21swapper/322:20:133
182885991815,1cyclictest0-21swapper/322:10:163
182885991815,1cyclictest0-21swapper/322:05:233
182885991815,1cyclictest0-21swapper/321:15:193
18288599181,13cyclictest616217-21taskset00:07:493
18288599181,13cyclictest608659-21taskset00:03:163
18288599181,13cyclictest600593-21taskset23:57:263
18288599181,13cyclictest523847-21taskset23:08:123
18288599181,13cyclictest401345-21chrt21:50:133
18288599181,13cyclictest384658-21taskset21:37:193
18288599181,13cyclictest340983-21taskset21:10:173
18288599181,13cyclictest236466-21turbostat19:50:013
18288599181,13cyclictest223901-21taskset19:40:093
18288599181,13cyclictest223901-21taskset19:40:083
6327772170,6sleep0151ktimers/000:20:120
5324242170,9sleep2532574-21df23:15:122
5029222171,4sleep0503856-21grep22:55:190
5029222171,4sleep0503856-21grep22:55:180
18288599172,12cyclictest188977-21taskset19:11:383
182885991715,1cyclictest0-21swapper/320:20:003
182885991714,1cyclictest0-21swapper/323:00:213
182885991714,1cyclictest0-21swapper/320:55:183
18288599171,13cyclictest662739-21taskset00:38:413
18288599171,13cyclictest662739-21taskset00:38:403
18288599171,13cyclictest646401-21taskset00:25:503
18288599171,13cyclictest577363-21taskset23:42:043
18288599171,13cyclictest552885-21taskset23:25:193
18288599171,13cyclictest507946-21taskset22:56:493
18288599171,13cyclictest507946-21taskset22:56:483
18288599171,13cyclictest217912-21taskset19:35:153
18288599171,12cyclictest561742-21taskset23:31:253
18288599171,12cyclictest318912-21taskset20:50:203
18288599171,12cyclictest262363-21taskset20:10:033
18288599171,12cyclictest204644-21taskset19:25:083
18288599171,12cyclictest198166-21taskset19:20:083
18288599161,12cyclictest584816-21taskset23:46:283
18288599161,12cyclictest460526-21taskset22:25:213
18288599161,12cyclictest416680-21taskset22:00:073
18288599161,12cyclictest333107-21taskset21:05:073
18288599161,12cyclictest326754-21taskset21:00:103
18288599161,12cyclictest306830-21taskset20:40:503
18288599161,12cyclictest197650-21taskset19:17:283
5863192152,4sleep0586313-21apt-get23:50:140
2807492150,7sleep2280858-21find20:20:262
5761522141,9sleep2576202-21ntpq23:40:232
4321142141,10sleep0432155-21ssh22:10:130
1826642140,2sleep30-21swapper/319:09:233
3991522131,9sleep00-21swapper/021:45:260
129998130,9rtkit-daemon1000-21snmpd21:18:270
129998130,5rtkit-daemon703-21mta-sts-daemon21:26:470
129998130,4rtkit-daemon255736-21systemd-run20:05:010
5781242124,1sleep0171rcu_preempt23:44:290
5137102120,9sleep0514480-21sed23:00:200
3483362121,4sleep2349301-21cut21:15:182
3345132120,9sleep2335390-21cut21:05:202
3198632121,4sleep11000-21snmpd20:53:041
1767092121,1sleep00-21swapper/019:05:140
129998120,8rtkit-daemon339578-21ssh21:10:100
129998120,6rtkit-daemon739-21wpa_supplicant22:28:350
6242882110,8sleep2624294-21ssh00:13:502
6027792110,8sleep2603560-21cut00:00:162
5855892110,8sleep0585591-21ssh23:48:510
4932372110,8sleep2493243-21ssh22:49:062
4201202111,7sleep2421760-21/usr/sbin/munin22:00:192
3794542110,8sleep1380467-21grep21:35:181
3693422110,8sleep1369346-21ssh21:27:361
3629182110,8sleep2362957-21cut21:25:122
2828382110,8sleep0283874-21grep20:25:160
2448842110,8sleep0246649-21cut19:55:170
129998110,6rtkit-daemon562800-21ssh23:34:421
129998110,6rtkit-daemon2195379-21ntpd20:35:190
129998110,4rtkit-daemon703-21mta-sts-daemon22:33:010
129998110,3rtkit-daemon222-21plymouthd19:33:041
129998110,1rtkit-daemon0-21swapper/020:10:470
6631612100,7sleep2663418-21cat00:40:012
6631612100,7sleep2663418-21cat00:40:002
6390022100,4sleep10-21swapper/100:21:511
6157832100,7sleep1615789-21ssh00:06:281
5001682100,4sleep2500174-21ssh22:51:402
4991272100,8sleep1499175-21ld22:50:231
4249192100,2sleep2425851-21ssh22:05:172
3989762100,7sleep2393574-21/usr/sbin/munin21:45:252
3539072101,7sleep10-21swapper/121:17:411
3269112100,7sleep0326717-21/usr/sbin/munin21:00:110
2171692100,3sleep2222-21plymouthd19:34:472
1981702100,6sleep2198203-21apt-get19:20:122
1891472100,2sleep1222-21plymouthd19:13:501
129998100,6rtkit-daemon1-21systemd19:30:001
129998100,5rtkit-daemon570967-21apt-get23:40:141
129998100,5rtkit-daemon445179-21ntpq22:15:210
129998100,3rtkit-daemon222-21plymouthd22:11:052
129998100,2rtkit-daemon222-21plymouthd19:20:081
648529290,6sleep1222-21plymouthd00:30:171
645714290,5sleep1645760-21ntpq00:25:251
623390290,1sleep00-21swapper/000:11:030
563647291,5sleep1564204-21sed23:35:161
537726291,5sleep1537744-21ntp_states23:15:241
523298290,7sleep2523304-21ssh23:06:302
509238291,2sleep2222-21plymouthd23:00:022
484630290,2sleep1222-21plymouthd22:41:211
460728290,2sleep2222-21plymouthd22:25:252
401302291,4sleep1401337-21apt-get21:50:131
355456290,7sleep1355995-21irqcore21:20:171
355026290,6sleep0355044-21/usr/sbin/munin21:20:120
333150290,6sleep1333152-21cpu21:05:151
320514291,5sleep0320685-21hddtemp_smartct20:55:150
310464290,6sleep0312396-21grep20:45:170
279589290,6sleep0280372-21wc20:20:200
268824291,4sleep2222-21plymouthd20:15:122
232495290,6sleep0233373-21kthreadcore19:45:190
218856290,6sleep0219868-21kthreadcore19:35:180
189507291,4sleep1189808-21ntpq19:15:011
176622291,3sleep20-21swapper/219:05:122
12999890,5rtkit-daemon222-21plymouthd23:05:420
12999890,5rtkit-daemon222-21plymouthd21:37:380
12999890,5rtkit-daemon1000-21snmpd22:54:120
12999890,4rtkit-daemon144156-21munin-node19:07:001
12999890,2rtkit-daemon655748-21ssh00:35:041
12999890,2rtkit-daemon655748-21ssh00:35:031
12999890,2rtkit-daemon222-21plymouthd22:41:370
12999890,2rtkit-daemon222-21plymouthd22:22:590
655037280,6sleep20-21swapper/200:33:382
640338281,3sleep2640376-21ssh00:25:142
639556280,2sleep2222-21plymouthd00:23:362
631374280,1sleep10-21swapper/100:17:111
617666280,5sleep1617768-21ps00:10:161
614872281,5sleep0614918-21ntpq00:05:230
602015280,4sleep0602219-21hddtemp_smartct00:00:130
591547281,4sleep1591583-21ntpq23:50:251
585457280,2sleep2585463-21ssh23:48:282
569631280,1sleep00-21swapper/023:37:000
560617283,2sleep0151ktimers/023:30:190
546667282,1sleep0171rcu_preempt23:22:370
514481281,4sleep1514605-21ntpq23:00:211
508948280,5sleep2508950-21ssh22:59:502
508948280,5sleep2508950-21ssh22:59:492
487598280,5sleep1488592-21kthreadcore22:45:171
483737281,4sleep2483776-21ntpq22:40:212
477600281,4sleep2477606-21ssh22:38:162
460691281,4sleep1222-21plymouthd22:25:241
447612281,3sleep20-21swapper/222:20:132
430417281,4sleep0430423-21ssh22:05:380
424424281,3sleep1424459-21apt-get22:05:111
414243281,3sleep1414297-21ntpq21:55:211
409030281,3sleep0409026-21apt-get21:55:120
380469280,6sleep2382161-21kthreadcore21:35:192
377167280,2sleep1377173-21ssh21:32:481
362339280,5sleep2362345-21ssh21:24:392
347022280,5sleep1347122-21latency_hist21:15:001
339619280,4sleep2222-21plymouthd21:10:122
320316281,3sleep1320318-21apt-get20:55:121
313579280,5sleep2313596-21dump-pmu-power20:49:592
313542280,2sleep1222-21plymouthd20:49:301
287859280,1sleep20-21swapper/220:29:392
255996281,4sleep0222-21plymouthd20:05:110
255410280,1sleep20-21swapper/220:01:252
236745281,4sleep1236898-21df_inode19:50:141
230752280,5sleep2231416-21cut19:45:182
222691281,4sleep1222730-21ntpq19:35:221
12999880,4rtkit-daemon739-21wpa_supplicant21:30:130
12999880,4rtkit-daemon703-21mta-sts-daemon23:55:211
12999880,4rtkit-daemon703-21mta-sts-daemon23:29:021
12999880,4rtkit-daemon604193-21cat00:00:151
12999880,4rtkit-daemon553767-21ssh23:25:322
12999880,4rtkit-daemon545637-21ssh23:20:272
12999880,4rtkit-daemon415367-21ssh21:56:562
12999880,4rtkit-daemon392778-21ssh21:43:292
12999880,4rtkit-daemon314-21systemd-journal21:50:242
12999880,4rtkit-daemon222-21plymouthd19:43:211
12999880,4rtkit-daemon222-21plymouthd19:43:201
12999880,4rtkit-daemon2195379-21ntpd23:12:190
12999880,4rtkit-daemon2195379-21ntpd20:31:500
12999880,4rtkit-daemon189459-21munin-node20:42:300
12999880,4rtkit-daemon130847-21gmain21:40:310
12999880,4rtkit-daemon1-21systemd22:45:390
12999880,4rtkit-daemon1000-21snmpd22:35:120
12999880,3rtkit-daemon268821-21apt-get20:15:100
12999880,1rtkit-daemon0-21swapper/021:07:480
12999880,1rtkit-daemon0-21swapper/019:52:440
653462271,3sleep0653508-21ntpq00:30:240
630394271,4sleep2630505-21python300:15:272
625000271,3sleep0625005-21apt-get00:15:130
599298271,3sleep2599343-21ntpq23:55:222
591592271,4sleep2591641-21ntpq23:50:262
578612271,3sleep1578649-21apt-get23:45:101
561953270,3sleep2222-21plymouthd23:32:052
540111270,3sleep1540117-21ssh23:20:141
539246270,1sleep00-21swapper/023:18:350
529231271,4sleep2529815-21ssh23:10:202
524944271,3sleep10-21swapper/123:10:151
518431271,3sleep1222-21plymouthd23:05:171
469515270,5sleep2469517-21ssh22:32:162
446266271,4sleep20-21swapper/222:16:592
408153270,3sleep0408159-21sshd-auth21:53:250
399943270,1sleep10-21swapper/121:46:561
391202271,3sleep1391235-21ntpq21:40:221
376820270,1sleep20-21swapper/221:31:492
301011271,3sleep10-21swapper/120:40:131
283875270,5sleep1285686-21cut20:25:171
281129270,3sleep1197601-21kworker/u16:2+flush-8:020:20:371
268788270,3sleep1222-21plymouthd20:15:111
256148270,4sleep2256263-21perl20:05:132
243133271,3sleep2243166-21apt-get19:55:122
239542271,3sleep20-21swapper/219:50:182
229870270,1sleep20-21swapper/219:42:412
229870270,1sleep20-21swapper/219:42:402
222737270,1sleep20-21swapper/219:35:232
211041271,3sleep0211074-21apt-get19:30:120
205042270,4sleep0205301-21cut19:25:140
197791270,3sleep2222-21plymouthd19:19:192
185783270,4sleep20-21swapper/219:10:182
183510271,3sleep0184441-21irqstats19:10:160
12999870,4rtkit-daemon1-21systemd20:50:110
12999870,3rtkit-daemon703-21mta-sts-daemon19:46:131
12999870,3rtkit-daemon222-21plymouthd00:37:250
12999870,3rtkit-daemon222-21plymouthd00:37:250
610046261,3sleep2222-21plymouthd00:05:172
506914261,2sleep10-21swapper/122:55:241
506914261,2sleep10-21swapper/122:55:231
478156261,3sleep10-21swapper/122:39:591
469418260,4sleep10-21swapper/122:31:591
452966261,3sleep1453010-21ntpq22:20:241
439290261,2sleep10-21swapper/122:14:221
423156261,2sleep00-21swapper/022:02:110
332772260,2sleep2222-21plymouthd21:04:072
321239260,3sleep2222-21plymouthd20:55:162
306187260,3sleep2306222-21gcc20:40:222
300699260,2sleep1222-21plymouthd20:39:441
299476261,2sleep20-21swapper/220:35:202
293978260,2sleep2222-21plymouthd20:30:522
262406261,1sleep10-21swapper/120:10:101
249044261,2sleep1222-21plymouthd19:57:151
229726260,1sleep00-21swapper/019:40:510
229726260,1sleep00-21swapper/019:40:500
206179261,3sleep2207697-21kthreadcore19:25:162
204057260,1sleep00-21swapper/019:20:540
192625260,4sleep0193556-21grep19:15:160
593992250,2sleep00-21swapper/023:55:130
569936250,2sleep2222-21plymouthd23:37:582
547821250,3sleep0547908-21expr23:25:130
422002250,2sleep1222-21plymouthd22:00:231
326716250,2sleep10-21swapper/121:00:081
319731250,2sleep2222-21plymouthd20:51:252
289550250,2sleep1222-21plymouthd20:30:191
268175250,2sleep2222-21plymouthd20:10:352
257360250,2sleep1258512-21kthreadcore20:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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