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2026-05-15 - 19:34
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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 May 15, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179440992230,219cyclictest621660-21turbostat12:14:563
179440992522,1cyclictest0-21swapper/310:30:123
179440992522,1cyclictest0-21swapper/307:25:013
3458612230,1sleep30-21swapper/309:15:173
179440992320,1cyclictest0-21swapper/307:54:593
179440992218,2cyclictest323736-21sleep09:00:003
17944099221,17cyclictest503215-21chrt10:55:123
179440992118,1cyclictest0-21swapper/309:10:253
17944099202,14cyclictest399442-21taskset09:48:253
17944099202,14cyclictest383364-21taskset09:37:513
179440992018,1cyclictest0-21swapper/310:05:003
179440992017,1cyclictest0-21swapper/311:15:173
179440992017,1cyclictest0-21swapper/310:00:013
179440992017,1cyclictest0-21swapper/309:55:003
179440992017,1cyclictest0-21swapper/309:00:203
179440992017,1cyclictest0-21swapper/308:30:213
17944099201,14cyclictest194335-21taskset07:19:433
2014042190,1sleep1331ktimers/107:25:151
17944099192,13cyclictest429630-21taskset10:05:253
179440991916,1cyclictest0-21swapper/312:00:023
179440991916,1cyclictest0-21swapper/309:30:123
179440991916,1cyclictest0-21swapper/309:25:183
179440991916,1cyclictest0-21swapper/309:20:043
179440991916,1cyclictest0-21swapper/307:25:143
17944099191,14cyclictest620291-21taskset12:06:163
17944099191,14cyclictest604438-21taskset11:56:133
17944099191,14cyclictest309828-21taskset08:45:223
17944099191,14cyclictest271122-21taskset08:15:243
17944099191,14cyclictest271122-21taskset08:15:233
17944099188,7cyclictest2399652sleep307:55:093
17944099182,13cyclictest226532-21taskset07:42:323
179440991816,1cyclictest0-21swapper/308:45:013
179440991815,1cyclictest0-21swapper/312:35:173
179440991815,1cyclictest0-21swapper/311:40:143
179440991815,1cyclictest0-21swapper/311:35:133
179440991815,1cyclictest0-21swapper/310:50:013
17944099181,13cyclictest637824-21taskset12:20:113
17944099181,13cyclictest564034-21taskset11:30:243
17944099181,13cyclictest548934-21taskset11:21:103
17944099181,13cyclictest526841-21taskset11:10:043
17944099181,13cyclictest525474-21taskset11:07:033
17944099181,13cyclictest439609-21turbostat10:15:013
17944099181,13cyclictest439609-21turbostat10:15:003
17944099181,13cyclictest391012-21taskset09:41:553
17944099181,13cyclictest317019-21taskset08:52:443
17944099181,13cyclictest220239-21sleep07:40:013
17944099181,13cyclictest185709-21taskset07:14:033
17944099181,12cyclictest495302-21chrt10:50:103
17944099177,7cyclictest4624902sleep310:27:553
179440991714,1cyclictest0-21swapper/311:45:193
179440991714,1cyclictest0-21swapper/311:25:183
179440991714,1cyclictest0-21swapper/310:35:133
17944099171,13cyclictest652354-21taskset12:27:253
17944099171,13cyclictest486438-21taskset10:43:213
17944099171,13cyclictest439943-21taskset10:15:113
17944099171,13cyclictest330445-21taskset09:05:023
17944099171,13cyclictest297430-21taskset08:35:443
17944099171,13cyclictest278388-21taskset08:24:463
17944099171,13cyclictest265318-21taskset08:12:023
17944099171,13cyclictest213374-21taskset07:30:413
17944099171,12cyclictest635907-21taskset12:15:393
17944099171,12cyclictest517031-21taskset11:00:293
17944099171,12cyclictest252662-21sleep08:09:553
17944099170,13cyclictest660045-21taskset12:31:413
17944099170,13cyclictest252365-21taskset08:01:403
17944099161,12cyclictest596211-21taskset11:50:293
17944099161,12cyclictest454803-21taskset10:23:243
17944099161,12cyclictest232933-21taskset07:46:423
17944099161,11cyclictest278859-21taskset08:25:143
17944099161,11cyclictest278859-21taskset08:25:133
6682332140,11sleep1668238-21sh12:37:351
5753192141,10sleep1576077-21cut11:40:181
5491062141,10sleep0549114-21ssh11:21:440
3370102141,4sleep2337016-21ssh09:10:112
2517642141,8sleep1251793-21ldconfig08:00:231
129998140,10rtkit-daemon622520-21sed12:10:160
129998140,10rtkit-daemon485597-21ssh10:40:572
129998140,10rtkit-daemon310630-21taskset08:48:402
4373432131,2sleep0437387-21ntpq10:10:240
4373432131,2sleep0437387-21ntpq10:10:230
3607022132,7sleep2360734-21apt-get09:25:122
6605662121,8sleep2660574-21ssh12:33:102
6589092120,1sleep10-21swapper/112:30:201
6169342120,3sleep134-21ksoftirqd/112:05:181
4927912121,8sleep1487355-21/usr/sbin/munin10:45:251
4309512121,4sleep1430957-21ssh10:08:041
129998120,5rtkit-daemon241703-21gmain11:25:470
129998120,5rtkit-daemon241703-21gmain07:50:552
129998120,3rtkit-daemon1000-21snmpd07:24:252
6682112111,3sleep20-21swapper/212:37:322
6521272110,8sleep0652133-21ssh12:26:510
5800642110,8sleep2580217-21expr11:40:272
4776472110,2sleep1477649-21ssh10:35:591
4237592110,7sleep2423881-21latency_hist10:05:002
4235382110,8sleep0423544-21ssh10:04:270
3921172111,7sleep2314-21systemd-journal09:44:592
3741102111,7sleep20-21swapper/209:30:242
3504152111,7sleep0350504-21ls09:15:280
3111972110,8sleep1311005-21/usr/sbin/munin08:50:151
2658572110,8sleep0265909-21ls08:15:140
2658572110,8sleep0265909-21ls08:15:130
129998110,6rtkit-daemon2195379-21ntpd07:15:222
129998110,6rtkit-daemon207569-21awk07:30:122
129998110,4rtkit-daemon703-21mta-sts-daemon12:15:020
129998110,2rtkit-daemon572872-21ssh11:36:350
5255592101,5sleep0222-21plymouthd11:07:160
5115732100,7sleep1512452-21irqrtprio11:00:171
5034222100,7sleep1503634-21basename10:55:141
4873522101,6sleep0487389-21apt-get10:45:110
4531442101,6sleep1453189-21ntp_states10:20:221
4067192100,7sleep2297441-21kworker/u16:0+rpciod09:51:412
3924482101,6sleep2392485-21apt-get09:45:122
3836052101,6sleep0222-21plymouthd09:38:290
3298672100,2sleep1222-21plymouthd09:01:201
3223702100,1sleep00-21swapper/008:55:180
1882072100,2sleep10-21swapper/107:15:141
129998100,6rtkit-daemon876-21gmain10:09:150
129998100,6rtkit-daemon739-21wpa_supplicant12:34:090
129998100,6rtkit-daemon726-21systemd-logind08:58:132
129998100,6rtkit-daemon364-21systemd-udevd08:37:332
129998100,6rtkit-daemon241703-21gmain11:50:071
129998100,5rtkit-daemon739-21wpa_supplicant12:37:190
129998100,3rtkit-daemon876-21gmain08:52:322
129998100,2rtkit-daemon534012-21ssh11:13:452
645383295,2sleep20-21swapper/212:25:002
637759290,6sleep1314-21systemd-journal12:20:021
620491290,2sleep2620497-21ssh12:06:492
596714290,2sleep0222-21plymouthd11:51:460
590017290,6sleep2590236-21wc11:50:002
589509291,5sleep10-21swapper/111:48:441
589176291,1sleep0171rcu_preempt11:47:460
542417291,5sleep1542423-21ssh11:20:001
540258291,5sleep0540336-21/usr/sbin/munin11:15:260
495680290,6sleep2496237-21ps10:50:142
481508290,7sleep1483162-21cut10:40:191
432409291,5sleep1432523-21sed10:10:171
432409291,5sleep1432523-21sed10:10:161
377719290,6sleep2378624-21grep09:35:182
376621291,4sleep1222-21plymouthd09:35:131
344870290,2sleep1344907-21ssh09:15:121
337178290,6sleep0336971-21/usr/sbin/munin09:10:130
336487290,2sleep0222-21plymouthd09:08:020
316927290,2sleep0222-21plymouthd08:51:330
299328291,6sleep2300384-21cut08:40:182
291001290,2sleep2222-21plymouthd08:31:042
278354290,2sleep1222-21plymouthd08:24:201
278211290,2sleep0222-21plymouthd08:22:310
271638290,1sleep20-21swapper/208:15:482
271638290,1sleep20-21swapper/208:15:482
252606290,2sleep2222-21plymouthd08:04:452
234895290,6sleep1236328-21kthreadcore07:50:171
232842290,2sleep0222-21plymouthd07:45:320
214442291,5sleep0215382-21irqstats07:35:170
213649290,2sleep0222-21plymouthd07:34:120
185440290,2sleep1222-21plymouthd07:10:361
178305293,3sleep30-21swapper/307:05:213
173213291,3sleep20-21swapper/207:05:122
12999890,6rtkit-daemon222-21plymouthd08:28:122
12999890,6rtkit-daemon222-21plymouthd08:28:112
12999890,6rtkit-daemon1000-21snmpd11:59:480
12999890,5rtkit-daemon549131-21ssh11:21:482
12999890,4rtkit-daemon563297-21cut11:30:190
12999890,4rtkit-daemon222-21plymouthd09:24:292
12999890,4rtkit-daemon222-21plymouthd07:43:392
12999890,4rtkit-daemon179628-21apt-get07:10:132
12999890,3rtkit-daemon241703-21gmain08:11:352
12999890,2rtkit-daemon439467-21ssh10:14:362
12999890,2rtkit-daemon439467-21ssh10:14:352
651660280,1sleep20-21swapper/212:25:332
573989280,2sleep10-21swapper/111:39:451
517498280,2sleep2517504-21ssh11:01:502
509879280,2sleep0336660-21diskmemload10:57:420
470315281,4sleep2470321-21ssh10:32:342
460993281,4sleep2461035-21ntpq10:25:222
445662280,5sleep2336660-21diskmemload10:15:272
430146280,2sleep2430152-21ssh10:05:452
408441280,1sleep20-21swapper/209:55:152
392662280,5sleep1392808-21grep09:45:151
367215280,2sleep1222-21plymouthd09:26:591
366280281,4sleep0366393-21timerandwakeup09:25:260
352341281,4sleep2352343-21ssh09:19:422
343056280,2sleep1222-21plymouthd09:10:591
336354280,2sleep2222-21plymouthd09:06:192
302212282,3sleep0222-21plymouthd08:40:190
296967281,4sleep0297077-21python308:35:260
291163280,2sleep1222-21plymouthd08:33:031
259070281,3sleep00-21swapper/008:10:000
239581280,1sleep00-21swapper/007:53:330
178992280,3sleep1222-21plymouthd07:06:281
173181280,1sleep00-21swapper/007:05:110
12999880,4rtkit-daemon703-21mta-sts-daemon12:00:290
12999880,4rtkit-daemon703-21mta-sts-daemon10:47:092
12999880,4rtkit-daemon703-21mta-sts-daemon10:23:332
12999880,4rtkit-daemon703-21mta-sts-daemon07:57:482
12999880,4rtkit-daemon644337-21ssh12:22:060
12999880,4rtkit-daemon614568-21sed12:05:160
12999880,4rtkit-daemon540793-21ssh11:15:342
12999880,4rtkit-daemon510033-21ssh10:58:062
12999880,4rtkit-daemon478524-21ssh10:38:262
12999880,4rtkit-daemon277513-21ntpq08:20:222
12999880,4rtkit-daemon2195379-21ntpd07:38:222
12999880,3rtkit-daemon876-21gmain07:25:132
12999880,1rtkit-daemon0-21swapper/209:03:472
629920271,3sleep2630070-21df12:15:152
621953271,3sleep1621990-21apt-get12:10:111
613685270,4sleep2613692-21ssh12:04:562
604759270,1sleep20-21swapper/211:57:052
604424271,3sleep1604430-21ssh11:56:131
595699270,4sleep2595783-21awk11:50:252
564273270,4sleep1564490-21users11:30:271
558600271,3sleep2558635-21apt-get11:30:122
551192271,3sleep1552126-21cut11:25:171
550713270,1sleep2222-21plymouthd11:25:142
534354270,4sleep1534358-21ssh11:14:401
533993270,4sleep0222-21plymouthd11:13:430
520400271,3sleep1521728-21kthreadcore11:05:171
519175270,4sleep2179335-21kworker/2:0+events11:05:142
501910270,4sleep1501916-21ssh10:52:311
484753271,3sleep0484794-21ntpq10:40:230
471559271,3sleep0222-21plymouthd10:35:130
461625271,3sleep10-21swapper/110:25:331
460621271,3sleep0460919-21head10:25:200
453899270,1sleep00-21swapper/010:20:580
445153271,3sleep0445197-21ntpq10:15:210
414303270,4sleep1414309-21ssh09:55:531
400324270,5sleep10-21swapper/109:50:041
390638271,3sleep00-21swapper/009:40:530
375668270,1sleep00-21swapper/009:33:230
368646270,1sleep10-21swapper/109:30:071
323971270,2sleep0222-21plymouthd09:00:030
297624270,3sleep1222-21plymouthd08:38:151
290345271,3sleep0290389-21ntpq08:30:220
278708270,3sleep10-21swapper/108:25:131
278708270,3sleep10-21swapper/108:25:121
271647270,1sleep10-21swapper/108:15:551
271647270,1sleep10-21swapper/108:15:541
265263270,4sleep1222-21plymouthd08:11:221
252522270,5sleep0252524-21sshd-auth08:03:440
246051270,1sleep0222-21plymouthd07:58:500
245457270,4sleep1245631-21timerwakeupswit07:55:271
226519270,5sleep00-21swapper/007:42:220
219965271,3sleep1222-21plymouthd07:37:031
200463271,3sleep0222-21plymouthd07:20:290
194065270,1sleep00-21swapper/007:16:210
179585270,1sleep0222-21plymouthd07:10:030
12999870,3rtkit-daemon252709-21appstreamcli08:05:032
12999870,3rtkit-daemon227033-21apt-get07:45:122
12999870,3rtkit-daemon222-21plymouthd10:32:541
645741260,2sleep10-21swapper/112:25:121
629917261,1sleep10-21swapper/112:15:141
627112260,4sleep2627258-21ntp_kernel_err12:10:212
606085260,3sleep1606091-21ssh12:00:011
543669261,2sleep10-21swapper/111:20:171
511094261,2sleep00-21swapper/011:00:110
495243260,1sleep00-21swapper/010:50:050
469779260,3sleep00-21swapper/010:31:130
446553260,3sleep1446559-21ssh10:17:311
423299260,4sleep1423307-21ssh10:03:441
408275260,2sleep00-21swapper/009:55:120
406553260,3sleep00-21swapper/009:51:160
392498260,3sleep0392661-21diskstats09:45:130
384450260,1sleep10-21swapper/109:40:051
359085260,3sleep1222-21plymouthd09:21:211
355691260,4sleep0357416-21kthreadcore09:20:200
336546260,4sleep11000-21snmpd09:08:471
317535260,2sleep10-21swapper/108:55:121
304552260,2sleep00-21swapper/008:45:130
298081261,2sleep10-21swapper/108:40:131
265325260,4sleep00-21swapper/008:12:090
253394260,3sleep1254329-21irqstats08:05:161
232838260,1sleep10-21swapper/107:45:291
226384260,2sleep1222-21plymouthd07:40:431
207262260,1sleep00-21swapper/007:29:480
579549250,2sleep0222-21plymouthd11:40:200
572549250,2sleep2222-21plymouthd11:35:452
304588250,2sleep10-21swapper/108:45:131
278667250,2sleep0222-21plymouthd08:25:040
278667250,2sleep0222-21plymouthd08:25:030
213473250,2sleep1222-21plymouthd07:31:571
194684250,2sleep1222-21plymouthd07:20:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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