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2026-06-24 - 21:59
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Wed Jun 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4336232460,1sleep00-21swapper/011:07:440
90416992724,1cyclictest0-21swapper/309:40:123
90416992421,1cyclictest0-21swapper/311:19:593
90416992320,1cyclictest0-21swapper/308:45:013
90416992219,1cyclictest0-21swapper/311:50:013
90416992219,1cyclictest0-21swapper/311:00:113
90416992219,1cyclictest0-21swapper/307:20:113
9041699212,15cyclictest276873-21taskset09:28:283
90416992118,1cyclictest0-21swapper/307:55:203
90416992118,1cyclictest0-21swapper/307:40:003
9041699202,14cyclictest306800-21taskset09:45:243
90416992018,1cyclictest0-21swapper/308:00:023
90416992017,1cyclictest0-21swapper/311:40:073
90416992017,1cyclictest0-21swapper/310:35:123
90416992017,1cyclictest0-21swapper/310:30:183
9041699201,15cyclictest370487-21taskset10:26:333
9041699201,13cyclictest363952-21taskset10:25:003
9041699192,13cyclictest512041-21taskset11:57:393
9041699192,13cyclictest417221-21taskset10:55:353
90416991916,1cyclictest0-21swapper/310:49:333
90416991916,1cyclictest0-21swapper/308:45:423
90416991916,1cyclictest0-21swapper/308:30:163
90416991916,1cyclictest0-21swapper/308:05:193
90416991916,1cyclictest0-21swapper/307:40:023
9041699191,14cyclictest427157-21taskset11:05:143
9041699191,14cyclictest226778-21taskset08:54:483
9041699191,13cyclictest410942-21taskset10:54:563
9041699191,13cyclictest340593-21taskset10:10:013
9041699188,6cyclictest1433182sleep307:45:493
9041699187,7cyclictest3391422sleep310:06:383
9041699186,9cyclictest204223-21taskset08:35:193
9041699182,12cyclictest181705-21taskset08:15:433
90416991815,1cyclictest0-21swapper/312:30:263
90416991815,1cyclictest0-21swapper/311:22:123
90416991815,1cyclictest0-21swapper/309:35:163
90416991815,1cyclictest0-21swapper/309:00:053
9041699181,13cyclictest558486-21taskset12:25:503
9041699181,13cyclictest536308-21taskset12:14:503
9041699181,13cyclictest479960-21taskset11:35:453
9041699181,13cyclictest353288-21taskset10:15:193
9041699181,13cyclictest227102-21chrt08:55:113
9041699181,13cyclictest194549-21taskset08:26:133
9041699181,13cyclictest182877-21taskset08:20:173
9041699181,13cyclictest169527-21taskset08:10:013
9041699181,13cyclictest169527-21taskset08:10:013
90416991714,1cyclictest0-21swapper/312:15:253
90416991714,1cyclictest0-21swapper/312:05:203
90416991714,1cyclictest0-21swapper/312:00:133
90416991714,1cyclictest0-21swapper/311:25:163
90416991714,1cyclictest0-21swapper/309:20:133
90416991714,1cyclictest0-21swapper/309:15:173
90416991713,1cyclictest0-21swapper/312:20:253
9041699171,13cyclictest573908-21taskset12:35:283
9041699171,13cyclictest504449-21taskset11:53:213
9041699171,13cyclictest441302-21taskset11:12:163
9041699171,13cyclictest394521-21taskset10:42:533
9041699171,13cyclictest319586-21taskset09:55:183
9041699171,13cyclictest314524-21taskset09:50:203
9041699171,13cyclictest252278-21taskset09:10:353
9041699171,13cyclictest105004-21taskset07:17:293
9041699171,12cyclictest324976-21taskset10:00:023
90416991613,1cyclictest0-21swapper/311:30:153
9041699161,13cyclictest124092-21taskset07:31:093
9041699161,12cyclictest95899-21taskset07:10:253
9041699161,12cyclictest277805-21taskset09:30:113
9041699161,12cyclictest245687-21taskset09:05:583
9041699161,12cyclictest149727-21taskset07:51:183
9041699161,10cyclictest111914-21chrt07:25:113
4635722160,3sleep0222-21plymouthd11:25:210
3714592161,4sleep1371463-21ssh10:29:081
4869502151,10sleep1487096-21ntpq11:40:211
958192141,10sleep195863-21ntpq07:10:241
4412952140,9sleep2441301-21ssh11:12:152
2398702141,9sleep0239902-21/usr/sbin/munin09:05:130
4818052137,1sleep2171rcu_preempt11:40:102
3127632130,10sleep1314362-21sed09:50:191
2831142139,2sleep2222-21plymouthd09:30:242
2752292131,4sleep1275275-21ntpq09:25:221
2649742131,8sleep1266635-21kthreadcore09:20:201
2147392130,10sleep1215091-21cut08:45:171
1901332131,8sleep0191604-21cat08:25:190
90416991210,1cyclictest0-21swapper/307:10:013
5656272120,9sleep1565713-21mailstats12:30:261
4339232120,9sleep1433929-21ssh11:08:371
3410672120,9sleep0341403-21sed10:10:160
2927922127,3sleep1331ktimers/109:38:531
2774042121,8sleep2277434-21apt-get09:30:002
2465402120,9sleep1246659-21/usr/sbin/munin09:10:141
2335042121,8sleep0233242-21sendmail-msp09:00:110
1402352120,4sleep0142080-21grep07:45:190
1246982122,5sleep1222-21plymouthd07:35:121
842162110,6sleep2222-21plymouthd07:05:112
5512472111,3sleep2551253-21ssh12:22:362
5108512110,8sleep2510889-21ssh11:55:262
4793422110,8sleep2473956-21/usr/sbin/munin11:35:262
4222062111,7sleep1423931-21kthreadcore11:00:201
3632012111,7sleep1363207-21ssh10:23:041
3485252111,7sleep0348609-21grep10:15:120
3472092110,4sleep1347216-21ssh10:12:211
3088322110,2sleep20-21swapper/209:49:412
3073362118,1sleep1321rcuc/109:45:301
1786472110,8sleep20-21swapper/208:15:182
967322105,2sleep20-21swapper/207:15:022
5752412101,6sleep2574947-21kworker/u16:0+xprtiod12:39:082
5669312100,3sleep2222-21plymouthd12:32:462
5381232100,7sleep0539620-21grep12:15:160
5353522100,2sleep0222-21plymouthd12:12:080
4182592100,7sleep1418263-21ssh10:58:311
3955922101,4sleep0395616-21apt-get10:45:110
3713082100,7sleep2371314-21ssh10:28:452
2777352101,7sleep1277739-21ssh09:30:061
2351382101,2sleep2171rcu_preempt09:00:172
2344242101,6sleep1234906-21kthreadcore09:00:161
2029072100,7sleep2204220-21kthreadcore08:35:192
1439092101,5sleep0143942-21apt-get07:50:110
90069291,4sleep1222-21plymouthd07:07:221
84254291,5sleep084404-21df07:05:130
552464291,4sleep1552461-21apt-get12:25:111
497542290,6sleep00-21swapper/011:50:100
495939291,5sleep1495943-21ssh11:46:351
491110290,7sleep0151ktimers/011:45:170
487205291,5sleep0487234-21ssh11:40:240
466164291,4sleep1466201-21apt-get11:30:111
450500291,5sleep1450176-21sendmail-msp11:20:121
448679290,2sleep2222-21plymouthd11:15:562
442013290,1sleep00-21swapper/011:14:140
411285291,4sleep0411320-21apt-get10:55:090
410489290,6sleep1410496-21sshd-session10:53:431
380098290,7sleep10-21swapper/110:35:141
345900291,4sleep2345943-21ntpq10:10:212
300131290,2sleep2222-21plymouthd09:42:302
293203291,5sleep0293281-21unin-run09:40:000
200267291,5sleep1200311-21ntpq08:30:211
156061290,2sleep2222-21plymouthd07:55:382
136993290,2sleep2222-21plymouthd07:41:432
117742290,1sleep20-21swapper/207:26:392
110642291,5sleep1110680-21ntpq07:20:211
105202291,5sleep1105263-21sendmail-msp07:20:011
574851282,4sleep0543202-21kworker/0:0+kacpi_notify12:38:010
553421281,4sleep2554334-21kthreadcore12:25:162
528404280,5sleep1528410-21ssh12:09:321
526388281,4sleep2526418-21ntpq12:05:252
521606280,5sleep0522547-21/usr/sbin/munin12:05:180
518509281,4sleep0518553-21ntpq12:00:250
511947280,1sleep00-21swapper/011:57:240
511414281,4sleep1222-21plymouthd11:55:581
504796280,2sleep1504802-21ssh11:54:241
480293280,5sleep0246025-21diskmemload11:36:480
464822281,4sleep2464830-21ssh11:27:082
417451280,5sleep20-21swapper/210:56:202
403458281,3sleep0403493-21apt-get10:50:120
401050281,4sleep2401153-21python310:45:252
388193280,5sleep2388674-21cut10:40:172
363290280,4sleep0222-21plymouthd10:23:190
351528281,5sleep2353286-21cut10:15:182
315773281,4sleep2315779-21ssh09:52:052
311141281,4sleep0312762-21cut09:50:190
306601281,4sleep0306695-21ntpq09:45:210
285629281,4sleep2285668-21apt-get09:35:142
268143280,2sleep2222-21plymouthd09:21:012
261666281,4sleep2261670-21ssh09:19:502
246328281,3sleep2222-21plymouthd09:10:112
226510280,2sleep1171rcu_preempt08:51:221
213162281,4sleep0213209-21ntp_states08:40:220
200922280,5sleep2222-21plymouthd08:31:032
193937281,4sleep1193984-21ntp_states08:25:241
188720281,3sleep2188753-21apt-get08:25:132
182360281,4sleep2182363-21apt-get08:20:132
177347280,2sleep10-21swapper/108:15:171
169577280,4sleep1222-21plymouthd08:10:131
169577280,4sleep1222-21plymouthd08:10:121
169081280,1sleep20-21swapper/208:07:582
161954283,2sleep2421rcuc/208:00:232
161915281,4sleep1161952-21ntpq08:00:221
156233280,2sleep0222-21plymouthd07:57:490
142081280,1sleep10-21swapper/107:45:201
137990281,4sleep2138921-21irqstats07:45:162
136964282,3sleep0222-21plymouthd07:41:210
129937281,5sleep0129976-21ntp_states07:35:240
124702281,4sleep2124847-21df07:35:132
119239280,2sleep2222-21plymouthd07:30:172
118305281,3sleep1118308-21apt-get07:30:111
107363280,5sleep2109128-21kthreadcore07:20:192
103730281,4sleep0104169-21needreboot07:15:190
95773270,1sleep00-21swapper/007:10:220
575452270,1sleep10-21swapper/112:39:471
560304271,2sleep00-21swapper/012:30:130
543997271,3sleep2222-21plymouthd12:19:242
536415271,3sleep1222-21plymouthd12:15:011
535829270,4sleep1535835-21ssh12:13:291
535476270,1sleep20-21swapper/212:12:332
460592271,3sleep1462229-21kthreadcore11:25:181
449781270,4sleep1449789-21ssh11:19:011
448783270,1sleep00-21swapper/011:16:190
433823270,5sleep2246025-21diskmemload11:08:142
426614270,4sleep2308581-21kworker/u16:2+rpciod11:04:552
425921271,3sleep014-21ksoftirqd/011:02:590
410527270,3sleep2222-21plymouthd10:53:482
387741270,1sleep10-21swapper/110:40:081
372081271,3sleep1372114-21apt-get10:30:131
356358271,2sleep20-21swapper/210:20:112
339333271,3sleep2222-21plymouthd10:07:082
331374270,4sleep1245731-21kworker/u16:1+rpciod10:01:431
318605270,5sleep2319582-21kthreadcore09:55:172
301035271,4sleep0222-21plymouthd09:44:580
284382270,5sleep0284389-21sh09:32:260
260166271,4sleep1260168-21ssh09:15:401
254251271,3sleep0254411-21diskstats09:15:150
251572271,3sleep0251615-21ntpq09:10:210
245029271,3sleep20-21swapper/209:05:232
233156270,2sleep0222-21plymouthd08:59:430
232926270,1sleep20-21swapper/208:56:442
213989270,3sleep2222-21plymouthd08:43:572
207295270,1sleep10-21swapper/108:35:341
201812270,1sleep00-21swapper/008:35:180
200966271,3sleep0222-21plymouthd08:31:360
182329270,1sleep10-21swapper/108:20:121
175980270,3sleep0222-21plymouthd08:15:120
175662270,4sleep0222-21plymouthd08:14:530
175662270,4sleep0222-21plymouthd08:14:520
174721270,4sleep20-21swapper/208:10:222
174721270,4sleep20-21swapper/208:10:212
169030270,1sleep10-21swapper/108:07:211
156087270,1sleep10-21swapper/107:55:581
149740271,4sleep10-21swapper/107:51:281
145488271,3sleep2147234-21cut07:50:172
124253270,2sleep00-21swapper/007:33:110
117947270,1sleep10-21swapper/107:29:151
105003270,5sleep2222-21plymouthd07:17:292
549856260,3sleep1549900-21ntpq12:20:221
544604262,2sleep014-21ksoftirqd/012:20:140
514660260,3sleep2515524-21cut12:00:192
500596260,3sleep2222-21plymouthd11:50:162
489639260,1sleep20-21swapper/211:45:082
481312260,1sleep10-21swapper/111:39:381
472135261,3sleep0222-21plymouthd11:30:500
466206260,2sleep20-21swapper/211:30:122
450460261,2sleep00-21swapper/011:20:110
450445261,3sleep2308581-21kworker/u16:2+ext4-rsv-conversion11:20:092
434922260,3sleep1435034-21fschecks_time11:10:141
396093261,2sleep10-21swapper/110:45:161
394371260,4sleep00-21swapper/010:42:300
379899261,2sleep20-21swapper/210:35:112
374703261,2sleep00-21swapper/010:30:210
372121260,2sleep2222-21plymouthd10:30:152
369552260,3sleep0369591-21ntp_states10:25:220
349953260,3sleep1349954-21kthreadcore10:15:171
339199261,2sleep10-21swapper/110:06:471
333941261,2sleep0222-21plymouthd10:05:180
331757260,1sleep20-21swapper/210:02:472
330220260,3sleep0222-21plymouthd10:00:220
324220260,1sleep10-21swapper/109:58:411
322507260,3sleep0322548-21ntp_states09:55:230
298713260,3sleep1298813-21ntpq09:40:211
271603260,3sleep0222-21plymouthd09:25:160
239859260,3sleep1239599-21apt-get09:05:061
233159260,1sleep10-21swapper/108:59:441
226563260,3sleep2222-21plymouthd08:52:032
221265260,3sleep0222145-21kthreadcore08:50:160
220363260,1sleep00-21swapper/008:49:250
215093262,1sleep20-21swapper/208:45:172
214060261,2sleep10-21swapper/108:44:521
188317260,3sleep0222-21plymouthd08:23:180
162501260,3sleep0222-21plymouthd08:00:290
131554261,2sleep10-21swapper/107:40:181
117079261,2sleep0117119-21ntpq07:25:210
105525260,3sleep0222-21plymouthd07:20:120
552675251,2sleep0222-21plymouthd12:25:140
519241250,2sleep1519247-21ssh12:00:461
380884250,3sleep0381640-21cut10:35:170
263484250,3sleep0264973-21cat09:20:190
168250250,3sleep00-21swapper/008:05:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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