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2026-05-18 - 05:47
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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 Mon May 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1777112980,4sleep0158674-21kworker/u16:0+events_power_efficient19:20:200
4465522330,5sleep2446555-21kthreadcore22:30:202
15281222721,3sleep2152933-21gltestperf19:05:152
158877992522,1cyclictest0-21swapper/319:15:003
158877992421,1cyclictest0-21swapper/300:20:003
158877992219,1cyclictest0-21swapper/322:00:003
158877992219,1cyclictest0-21swapper/320:40:023
158877992117,1cyclictest0-21swapper/321:40:153
15887799211,15cyclictest353344-21taskset21:31:083
15887799211,14cyclictest567639-21taskset23:49:553
158877992017,1cyclictest0-21swapper/323:05:193
158877992017,1cyclictest0-21swapper/322:40:023
15887799201,15cyclictest630863-21turbostat00:29:593
15887799201,15cyclictest455735-21taskset22:35:593
15887799201,14cyclictest302786-21taskset21:00:003
15887799201,14cyclictest225308-21taskset19:59:553
15887799201,13cyclictest520574-21taskset23:20:003
15887799200,14cyclictest231803-21taskset20:05:013
4097212190,1sleep20-21swapper/222:09:192
15887799191,14cyclictest559447-21taskset23:44:033
15887799191,14cyclictest543549-21taskset23:33:453
15887799189,6cyclictest4414092sleep322:29:583
15887799188,7cyclictest2958882sleep320:52:403
15887799183,12cyclictest199585-21turbostat19:40:013
15887799183,12cyclictest199585-21turbostat19:40:003
15887799182,12cyclictest210481-21chrt19:45:213
15887799182,12cyclictest210481-21chrt19:45:203
158877991815,1cyclictest0-21swapper/323:25:133
158877991815,1cyclictest0-21swapper/321:00:013
158877991815,1cyclictest0-21swapper/319:50:153
158877991815,1cyclictest0-21swapper/319:42:433
15887799181,14cyclictest180091-21taskset19:23:553
15887799181,13cyclictest588940-21taskset00:00:233
15887799181,13cyclictest576073-21taskset23:55:123
15887799181,13cyclictest487912-21taskset22:57:483
15887799181,13cyclictest472040-21taskset22:47:343
15887799181,13cyclictest449011-21taskset22:34:063
15887799181,13cyclictest425991-21taskset22:20:033
15887799181,13cyclictest257652-21taskset20:25:013
15887799181,13cyclictest250727-21taskset20:15:343
15887799181,13cyclictest241695-21taskset20:10:173
158877991810,5cyclictest1736292chrt19:18:343
15887799180,6cyclictest402046-21turbostat22:05:013
158877991714,1cyclictest0-21swapper/323:10:183
158877991714,1cyclictest0-21swapper/322:10:233
158877991714,1cyclictest0-21swapper/321:50:003
158877991714,1cyclictest0-21swapper/321:25:163
158877991714,1cyclictest0-21swapper/300:37:003
15887799171,13cyclictest621888-21taskset00:22:033
15887799171,13cyclictest606664-21taskset00:13:423
15887799171,13cyclictest424072-21taskset22:15:303
15887799171,13cyclictest409001-21taskset22:07:203
15887799171,13cyclictest384078-21taskset21:50:253
15887799171,13cyclictest339040-21turbostat21:25:003
15887799171,13cyclictest330819-21taskset21:19:053
15887799171,13cyclictest315078-21taskset21:05:473
15887799171,12cyclictest512639-21taskset23:15:033
15887799171,12cyclictest479369-21taskset22:50:503
15887799171,12cyclictest361135-21chrt21:35:573
15887799171,12cyclictest322918-21taskset21:13:593
15887799171,12cyclictest270003-21taskset20:30:543
15887799171,12cyclictest237830-21taskset20:05:283
15887799171,11cyclictest493112-21chrt23:00:203
15887799170,13cyclictest192703-21taskset19:30:283
5749122161,5sleep1574916-21ssh23:53:151
4725172160,6sleep0315424-21diskmemload22:48:470
158877991613,1cyclictest0-21swapper/300:05:253
15887799161,12cyclictest637174-21taskset00:30:493
15887799161,12cyclictest568272-21taskset23:50:163
15887799161,12cyclictest277023-21taskset20:40:043
15887799161,12cyclictest263694-21taskset20:27:343
15887799161,11cyclictest180442-21taskset19:25:073
15887799160,12cyclictest544301-21taskset23:35:083
15887799160,11cyclictest283467-21taskset20:45:023
3682622151,11sleep2368309-21ntpq21:40:232
129998150,6rtkit-daemon1000-21snmpd23:36:440
5828922140,10sleep1582898-21ssh23:58:281
5838442130,9sleep10-21swapper/100:00:131
3865402131,8sleep0386558-21find21:55:120
2256052131,3sleep2225638-21apt-get20:00:112
129998130,9rtkit-daemon1-21systemd21:00:002
129998130,8rtkit-daemon1002-21runrttasks00:17:520
5141532121,8sleep1515792-21kthreadcore23:15:181
4707452121,8sleep1470794-21ntp_states22:45:231
4563082120,5sleep1456316-21ssh22:37:391
4043942121,8sleep1406055-21kthreadcore22:05:191
3616312120,4sleep1361637-21ssh21:37:241
2705972121,7sleep0270630-21apt-get20:35:130
129998120,8rtkit-daemon606724-21ssh00:13:490
129998120,8rtkit-daemon392563-21ssh21:55:462
129998120,4rtkit-daemon165435-21munin-node23:40:020
6154322111,2sleep00-21swapper/000:20:120
5348882110,8sleep0534894-21ssh23:26:360
5118472110,8sleep1511853-21ssh23:13:351
5027932111,7sleep2496960-21/usr/sbin/munin23:05:292
4014672110,8sleep0401475-21sh22:03:290
3446632113,5sleep1344706-21ntpq21:25:211
2834742110,7sleep2283204-21apt-get20:45:062
2123532110,5sleep244-21ksoftirqd/219:49:062
2123532110,5sleep244-21ksoftirqd/219:49:052
1526162111,5sleep30-21swapper/319:05:133
129998110,7rtkit-daemon222-21plymouthd19:35:292
129998110,7rtkit-daemon222-21plymouthd19:35:282
129998110,7rtkit-daemon1000-21snmpd00:04:460
129998110,5rtkit-daemon739-21wpa_supplicant21:20:441
6385572100,7sleep1638561-21ssh00:34:401
6154392100,1sleep10-21swapper/100:20:131
5519192100,6sleep11-21systemd23:40:001
5364282102,4sleep2536465-21apt-get23:30:122
5187122100,1sleep00-21swapper/023:15:370
4605752100,3sleep2462338-21cut22:40:192
4521952100,7sleep0453937-21cut22:35:160
3605482100,7sleep0360641-21switchtime21:35:260
3297182100,7sleep1329722-21ssh21:16:071
3158002100,7sleep20-21swapper/221:10:162
2384932101,4sleep0238525-21apt-get20:10:110
2017352100,7sleep2202916-21kthreadcore19:40:192
1928682100,3sleep1222-21plymouthd19:32:371
1736572100,2sleep1222-21plymouthd19:18:571
129998100,6rtkit-daemon296033-21runrttasks20:54:322
129998100,6rtkit-daemon271380-21cut20:35:182
129998100,6rtkit-daemon222-21plymouthd22:50:310
129998100,6rtkit-daemon222-21plymouthd20:25:072
129998100,5rtkit-daemon355122-21ssh21:35:132
129998100,5rtkit-daemon158872-21cyclictest21:04:002
129998100,3rtkit-daemon876-21gmain00:27:460
639054290,5sleep00-21swapper/000:35:130
623273291,4sleep2623295-21apt-get00:25:122
598215290,2sleep1222-21plymouthd00:07:071
558636290,6sleep1558642-21ssh23:41:451
523169291,5sleep1524450-21tr23:20:201
520216292,4sleep2502843-21kworker/u16:4+xprtiod23:19:442
504429290,5sleep0504673-21latency_hist23:10:000
488202290,2sleep20-21swapper/222:58:442
479454291,5sleep2222-21plymouthd22:51:102
479234290,3sleep1479240-21ssh22:50:291
431948290,2sleep00-21swapper/022:20:330
386968291,5sleep1387302-21cut21:55:161
362983291,4sleep1362989-21ssh21:40:131
322564291,5sleep1322570-21ssh21:12:551
276519290,1sleep10-21swapper/120:37:071
264189292,3sleep1264188-21apt-get20:30:131
239970290,6sleep2241694-21cut20:10:172
224992290,2sleep1222-21plymouthd19:56:011
218606290,1sleep00-21swapper/019:51:590
205698290,2sleep1222-21plymouthd19:41:021
186587290,2sleep0222-21plymouthd19:29:380
186372290,2sleep1222-21plymouthd19:26:511
174068291,5sleep2174157-21cut19:20:152
152653290,4sleep00-21swapper/019:05:130
12999890,6rtkit-daemon876-21gmain20:07:102
12999890,6rtkit-daemon671-21avahi-daemon20:18:552
12999890,5rtkit-daemon739-21wpa_supplicant22:55:070
12999890,5rtkit-daemon432142-21ssh22:21:021
12999890,5rtkit-daemon264469-21grep20:30:152
12999890,5rtkit-daemon222-21plymouthd23:49:321
12999890,4rtkit-daemon399233-21cut22:00:191
12999890,4rtkit-daemon158872-21cyclictest23:05:181
621668281,4sleep2621674-21ssh00:21:222
599565281,4sleep2599600-21apt-get00:10:122
582287280,1sleep2222-21plymouthd23:56:492
544356281,4sleep2544362-21ssh23:35:122
543132280,2sleep1543138-21ssh23:32:351
536013280,2sleep2536019-21ssh23:29:472
535080281,4sleep1222-21plymouthd23:27:051
520611281,4sleep2520646-21apt-get23:20:132
511344280,2sleep2222-21plymouthd23:12:112
510476280,1sleep0510726-21users23:10:290
483259280,5sleep1484943-21cut22:55:181
472868280,1sleep2222-21plymouthd22:49:502
458946280,5sleep1460571-21kthreadcore22:40:181
447117280,5sleep10-21swapper/122:30:241
433885281,3sleep2433920-21apt-get22:25:132
431319281,4sleep2431365-21ntpq22:20:232
425704281,4sleep0425889-21date22:20:020
416595282,3sleep1222-21plymouthd22:11:401
399747281,4sleep2399789-21ntpq22:00:222
386219281,4sleep1386240-21munin-run21:55:001
378728281,3sleep0378722-21apt-get21:50:140
370870281,3sleep0370873-21apt-get21:45:140
339010281,3sleep00-21swapper/021:25:010
331438282,3sleep2222-21plymouthd21:20:062
329911283,3sleep2431ktimers/221:16:362
321124281,3sleep00-21swapper/021:10:260
295228281,4sleep0295279-21grep20:50:250
277071281,4sleep0277225-21df_inode20:40:140
257322282,3sleep2222-21plymouthd20:22:322
239104281,3sleep1239966-21kthreadcore20:10:161
172700281,4sleep0172787-21ntpq19:15:230
12999880,5rtkit-daemon703-21mta-sts-daemon23:45:330
12999880,5rtkit-daemon526516-21uptime23:20:290
12999880,4rtkit-daemon703-21mta-sts-daemon19:53:392
12999880,4rtkit-daemon384072-21ntpq21:50:252
12999880,4rtkit-daemon371467-21sed21:45:172
12999880,4rtkit-daemon351779-21ssh21:30:201
12999880,4rtkit-daemon222-21plymouthd19:56:302
12999880,4rtkit-daemon222-21plymouthd00:02:422
12999880,4rtkit-daemon2195379-21ntpd23:33:200
12999880,4rtkit-daemon2195379-21ntpd23:02:571
12999880,4rtkit-daemon165435-21munin-node22:17:311
12999880,4rtkit-daemon165435-21munin-node21:05:012
12999880,4rtkit-daemon1-21systemd22:43:180
12999880,4rtkit-daemon1-21systemd19:16:282
12999880,4rtkit-daemon1000-21snmpd19:12:332
12999880,3rtkit-daemon222-21plymouthd20:40:402
12999880,1rtkit-daemon0-21swapper/100:39:591
631137271,3sleep2631147-21find00:30:122
629568270,1sleep10-21swapper/100:26:281
607941270,5sleep2608621-21irqrtprio00:15:172
605912270,4sleep1605918-21ssh00:11:391
574119271,3sleep2222-21plymouthd23:51:042
559546270,1sleep2559552-21ssh23:44:192
489050271,2sleep00-21swapper/023:00:150
456991270,1sleep20-21swapper/222:39:322
447299273,2sleep0447408-21switchtime22:30:270
434097270,4sleep1434247-21grep22:25:161
433933270,4sleep0434096-21diskstats22:25:150
415588271,3sleep0415627-21ntpq22:10:220
370088270,2sleep0222-21plymouthd21:43:480
347251272,2sleep0151ktimers/021:30:130
325054270,4sleep0325962-21kthreadcore21:15:220
314528270,4sleep1222-21plymouthd21:05:251
308686270,4sleep0222-21plymouthd21:01:240
289590271,3sleep1222-21plymouthd20:49:091
289507270,1sleep00-21swapper/020:48:040
270327271,3sleep0270352-21latency_hist20:35:010
257306270,1sleep10-21swapper/120:22:191
238021270,4sleep1222-21plymouthd20:07:491
231726270,1sleep00-21swapper/020:04:420
230832271,3sleep1230867-21ntpq20:00:221
219142270,4sleep00-21swapper/019:55:130
212687270,2sleep10-21swapper/119:50:081
212305270,1sleep1222-21plymouthd19:48:281
212305270,1sleep1222-21plymouthd19:48:271
193807271,4sleep1194666-21cut19:35:181
193807271,4sleep1194666-21cut19:35:171
193617270,4sleep0193806-21/usr/sbin/munin19:35:160
193617270,4sleep0193806-21/usr/sbin/munin19:35:160
174062271,3sleep10-21swapper/119:20:141
161270271,3sleep00-21swapper/019:10:190
158690270,3sleep10-21swapper/119:09:511
12999870,3rtkit-daemon979-21lldpd19:31:232
12999870,3rtkit-daemon354243-21ssh21:33:432
12999870,3rtkit-daemon222-21plymouthd19:25:542
12999870,3rtkit-daemon222-21plymouthd00:05:060
631819260,1sleep00-21swapper/000:30:180
607471260,3sleep10-21swapper/100:15:131
594567260,3sleep2596477-21cut00:05:192
581891260,3sleep0581897-21ssh23:55:400
575192260,1sleep00-21swapper/023:53:580
560198260,3sleep2560204-21ssh23:45:142
491379261,2sleep2222-21plymouthd23:00:202
424507260,1sleep20-21swapper/222:16:502
416304260,1sleep20-21swapper/222:10:442
403468260,3sleep0404393-21tr22:05:180
375980261,3sleep1376124-21ntpq21:45:221
342857260,3sleep2344438-21cat21:25:182
315171260,1sleep00-21swapper/021:06:560
308725260,1sleep10-21swapper/121:01:531
302486261,2sleep00-21swapper/020:59:420
302472261,2sleep10-21swapper/120:59:311
279470261,2sleep10-21swapper/120:40:191
257778261,2sleep1222-21plymouthd20:25:091
244963260,2sleep10-21swapper/120:15:141
244927261,3sleep0244960-21apt-get20:15:130
237154261,2sleep00-21swapper/020:05:230
205899260,3sleep0222-21plymouthd19:43:370
164319260,3sleep1164362-21ntp_states19:10:241
645342250,2sleep2222-21plymouthd00:36:432
340315250,2sleep0341211-21kthreadcore21:25:160
295828250,2sleep1222-21plymouthd20:51:541
263676250,2sleep0222-21plymouthd20:27:200
251652250,2sleep0222-21plymouthd20:20:180
212116250,2sleep0222-21plymouthd19:46:020
212116250,2sleep0222-21plymouthd19:46:020
193024250,2sleep0222-21plymouthd19:34:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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