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2026-04-16 - 14:37
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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 highest latencies:
System rackdslot4.osadl.org (updated Thu Apr 16, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591234167,22phc2sys0-21swapper/319:06:163
193472216152,22sleep00-21swapper/019:06:550
192972201167,23sleep10-21swapper/119:06:161
192462201168,22sleep20-21swapper/219:05:362
887921600,6sleep31988799cyclictest23:05:263
285342610,3sleep30-21swapper/321:35:213
138491590,1ptp4l401ktimersoftd/323:55:173
138491560,1ptp4l401ktimersoftd/320:02:313
138491490,1ptp4l391rcuc/319:53:523
19886994531,12cyclictest33-21ksoftirqd/223:00:122
138491450,1ptp4l401ktimersoftd/300:28:283
138491450,0ptp4l401ktimersoftd/300:39:123
138491420,1ptp4l401ktimersoftd/322:11:453
138491420,1ptp4l401ktimersoftd/322:11:453
138491420,0ptp4l401ktimersoftd/320:41:453
19887994124,15cyclictest41-21ksoftirqd/321:05:003
138491410,0ptp4l401ktimersoftd/320:50:173
138491410,0ptp4l401ktimersoftd/319:36:513
138491400,1ptp4l401ktimersoftd/319:13:443
19887993934,3cyclictest41-21ksoftirqd/300:34:593
138491390,1ptp4l401ktimersoftd/321:54:283
19887993832,4cyclictest41-21ksoftirqd/323:48:113
19887993832,4cyclictest41-21ksoftirqd/323:04:593
19887993832,3cyclictest41-21ksoftirqd/319:29:593
19887993826,10cyclictest41-21ksoftirqd/319:20:263
19887993819,16cyclictest41-21ksoftirqd/322:40:013
19886993831,4cyclictest33-21ksoftirqd/223:40:002
138491380,0ptp4l401ktimersoftd/319:30:183
19887993732,3cyclictest41-21ksoftirqd/322:50:013
19887993731,2cyclictest41-21ksoftirqd/323:30:003
19886993731,4cyclictest33-21ksoftirqd/221:40:442
19886993731,4cyclictest33-21ksoftirqd/200:32:522
19885993731,4cyclictest25-21ksoftirqd/120:17:071
19885993731,4cyclictest25-21ksoftirqd/119:36:241
19885993730,5cyclictest25-21ksoftirqd/121:36:191
19887993631,3cyclictest41-21ksoftirqd/321:40:123
19887993631,3cyclictest41-21ksoftirqd/321:00:003
19887993630,4cyclictest41-21ksoftirqd/322:08:223
19887993630,3cyclictest41-21ksoftirqd/322:34:593
19887993629,4cyclictest41-21ksoftirqd/321:45:133
19886993631,3cyclictest33-21ksoftirqd/222:57:242
19886993630,4cyclictest33-21ksoftirqd/222:44:392
19886993630,4cyclictest33-21ksoftirqd/219:54:342
19886993630,4cyclictest33-21ksoftirqd/219:37:132
19885993630,4cyclictest25-21ksoftirqd/122:51:171
19885993630,4cyclictest25-21ksoftirqd/122:44:151
19885993630,4cyclictest25-21ksoftirqd/121:25:391
19885993630,4cyclictest25-21ksoftirqd/121:17:021
19885993630,4cyclictest25-21ksoftirqd/120:54:061
19885993629,5cyclictest25-21ksoftirqd/122:38:491
138491360,0ptp4l401ktimersoftd/300:18:243
19887993532,2cyclictest41-21ksoftirqd/319:50:013
19887993532,2cyclictest41-21ksoftirqd/319:20:003
19887993530,3cyclictest41-21ksoftirqd/320:37:483
19887993530,3cyclictest41-21ksoftirqd/320:19:593
19887993529,4cyclictest41-21ksoftirqd/323:38:163
19887993529,4cyclictest41-21ksoftirqd/300:11:063
19886993531,3cyclictest33-21ksoftirqd/223:52:142
19886993529,4cyclictest33-21ksoftirqd/221:54:542
19886993529,4cyclictest33-21ksoftirqd/221:14:462
19886993529,4cyclictest33-21ksoftirqd/219:10:582
19886993529,4cyclictest33-21ksoftirqd/200:29:272
19885993530,3cyclictest25-21ksoftirqd/100:35:101
19885993529,4cyclictest25-21ksoftirqd/123:53:181
19885993529,4cyclictest25-21ksoftirqd/123:46:561
19885993529,4cyclictest25-21ksoftirqd/123:39:261
19885993529,4cyclictest25-21ksoftirqd/122:55:531
19885993529,4cyclictest25-21ksoftirqd/121:56:081
19885993529,4cyclictest25-21ksoftirqd/121:30:101
19885993529,4cyclictest25-21ksoftirqd/121:03:181
19885993529,4cyclictest25-21ksoftirqd/120:35:331
19885993529,4cyclictest25-21ksoftirqd/119:40:541
19885993529,4cyclictest25-21ksoftirqd/119:23:161
19885993528,5cyclictest25-21ksoftirqd/122:18:431
19885993521,5cyclictest25-21ksoftirqd/123:07:331
19884993530,3cyclictest9-21ksoftirqd/022:05:000
19884993529,4cyclictest9-21ksoftirqd/023:56:430
19884993529,4cyclictest9-21ksoftirqd/000:29:330
19884993528,5cyclictest9-21ksoftirqd/023:10:340
19887993430,3cyclictest41-21ksoftirqd/323:50:183
19887993429,3cyclictest41-21ksoftirqd/322:50:163
19887993429,3cyclictest41-21ksoftirqd/321:25:173
19887993429,3cyclictest41-21ksoftirqd/320:11:033
19887993428,4cyclictest41-21ksoftirqd/321:30:483
19887993428,4cyclictest41-21ksoftirqd/321:18:083
19887993428,4cyclictest41-21ksoftirqd/321:12:383
19887993428,4cyclictest41-21ksoftirqd/319:56:203
19887993428,4cyclictest41-21ksoftirqd/300:22:243
19887993428,3cyclictest41-21ksoftirqd/320:05:173
19886993429,3cyclictest33-21ksoftirqd/200:03:322
19886993428,4cyclictest33-21ksoftirqd/222:52:452
19886993428,4cyclictest33-21ksoftirqd/220:11:192
19886993428,3cyclictest33-21ksoftirqd/223:20:202
19886993428,3cyclictest33-21ksoftirqd/222:46:262
19886993412,19cyclictest27240-21expr23:45:132
19885993429,3cyclictest24381-21cron22:34:591
19885993428,4cyclictest25-21ksoftirqd/123:27:101
19885993428,4cyclictest25-21ksoftirqd/120:08:221
19885993428,4cyclictest25-21ksoftirqd/120:00:311
19885993428,4cyclictest25-21ksoftirqd/119:58:351
19885993428,4cyclictest25-21ksoftirqd/119:30:051
19885993428,4cyclictest25-21ksoftirqd/119:10:291
19885993428,4cyclictest25-21ksoftirqd/100:32:291
19884993430,3cyclictest9-21ksoftirqd/021:50:000
19884993429,3cyclictest9-21ksoftirqd/023:48:030
19884993429,3cyclictest9-21ksoftirqd/022:40:010
19884993429,3cyclictest9-21ksoftirqd/000:15:000
19884993428,4cyclictest9-21ksoftirqd/023:23:450
19884993428,4cyclictest9-21ksoftirqd/022:31:300
19884993428,4cyclictest9-21ksoftirqd/019:37:480
19887993329,3cyclictest41-21ksoftirqd/319:42:133
19887993328,3cyclictest41-21ksoftirqd/323:10:103
19887993328,3cyclictest41-21ksoftirqd/322:40:123
19887993328,3cyclictest41-21ksoftirqd/321:22:473
19887993328,3cyclictest41-21ksoftirqd/320:45:113
19887993327,4cyclictest41-21ksoftirqd/323:23:513
19887993327,4cyclictest41-21ksoftirqd/322:23:343
19887993327,4cyclictest41-21ksoftirqd/320:27:213
1988799330,3cyclictest121rcu_preempt00:00:113
1988699337,8cyclictest20322-21irqrtprio23:30:182
19886993328,3cyclictest33-21ksoftirqd/222:01:032
19886993328,3cyclictest33-21ksoftirqd/220:45:102
19886993328,3cyclictest33-21ksoftirqd/219:40:102
19886993328,3cyclictest33-21ksoftirqd/200:13:232
19886993327,4cyclictest7178-21cron20:55:012
19886993327,4cyclictest33-21ksoftirqd/221:27:542
19886993327,4cyclictest33-21ksoftirqd/221:22:082
19886993327,4cyclictest33-21ksoftirqd/220:56:242
19886993327,4cyclictest33-21ksoftirqd/200:20:512
19886993327,4cyclictest33-21ksoftirqd/200:17:342
19886993326,5cyclictest33-21ksoftirqd/223:16:012
19886993313,17cyclictest29715-21/usr/sbin/munin20:35:252
19885993328,3cyclictest25-21ksoftirqd/123:19:391
19885993328,3cyclictest25-21ksoftirqd/122:20:091
19885993327,4cyclictest25-21ksoftirqd/123:32:001
19885993327,4cyclictest25-21ksoftirqd/122:10:571
19885993327,4cyclictest25-21ksoftirqd/122:10:571
19885993327,4cyclictest25-21ksoftirqd/120:33:011
19885993327,4cyclictest25-21ksoftirqd/119:45:351
19885993326,5cyclictest25-21ksoftirqd/120:28:151
19884993328,3cyclictest9-21ksoftirqd/021:35:110
19884993328,3cyclictest9-21ksoftirqd/021:22:140
19884993327,4cyclictest9-21ksoftirqd/023:26:220
19884993327,4cyclictest9-21ksoftirqd/023:06:360
19884993327,4cyclictest9-21ksoftirqd/022:21:270
19884993327,4cyclictest9-21ksoftirqd/021:33:490
19884993327,4cyclictest9-21ksoftirqd/021:29:120
19884993327,4cyclictest9-21ksoftirqd/020:55:110
19884993327,4cyclictest9-21ksoftirqd/020:46:080
19884993327,4cyclictest9-21ksoftirqd/020:41:020
19884993327,4cyclictest9-21ksoftirqd/020:28:220
19884993327,4cyclictest9-21ksoftirqd/020:24:570
19884993327,4cyclictest9-21ksoftirqd/019:30:100
19884993327,4cyclictest9-21ksoftirqd/000:22:170
19884993327,4cyclictest9-21ksoftirqd/000:15:310
19884993326,5cyclictest9-21ksoftirqd/019:42:370
19887993227,3cyclictest41-21ksoftirqd/323:20:003
19887993227,3cyclictest41-21ksoftirqd/322:55:133
19887993227,3cyclictest41-21ksoftirqd/322:02:153
19887993227,3cyclictest41-21ksoftirqd/300:05:123
19887993226,4cyclictest41-21ksoftirqd/323:43:573
19887993226,4cyclictest41-21ksoftirqd/323:43:573
1988699328,8cyclictest6711-21unixbench_singl21:55:272
1988699323,27cyclictest0-21swapper/219:24:532
19886993227,3cyclictest33-21ksoftirqd/223:45:012
19886993227,3cyclictest33-21ksoftirqd/223:45:012
19886993227,3cyclictest33-21ksoftirqd/222:26:332
19886993226,4cyclictest33-21ksoftirqd/220:31:492
19886993226,4cyclictest33-21ksoftirqd/220:26:552
19886993226,4cyclictest33-21ksoftirqd/220:09:472
19886993226,4cyclictest33-21ksoftirqd/200:39:412
19886993225,4cyclictest33-21ksoftirqd/223:56:332
19886993225,4cyclictest33-21ksoftirqd/219:17:232
19886993211,18cyclictest29559-21cron19:30:002
19885993227,3cyclictest25-21ksoftirqd/120:59:391
19885993226,4cyclictest25-21ksoftirqd/123:22:051
19885993226,4cyclictest25-21ksoftirqd/122:25:451
19885993226,4cyclictest25-21ksoftirqd/121:40:361
19885993226,4cyclictest25-21ksoftirqd/121:10:321
19885993226,4cyclictest25-21ksoftirqd/120:43:081
19885993226,4cyclictest25-21ksoftirqd/119:54:251
19885993226,4cyclictest25-21ksoftirqd/100:29:121
19884993227,3cyclictest9-21ksoftirqd/023:19:550
19884993227,3cyclictest9-21ksoftirqd/020:30:100
19884993227,3cyclictest9-21ksoftirqd/000:05:000
19884993226,4cyclictest9-21ksoftirqd/022:05:590
19884993226,4cyclictest9-21ksoftirqd/000:31:450
19887993127,2cyclictest41-21ksoftirqd/322:25:113
19887993127,2cyclictest41-21ksoftirqd/320:35:003
19887993126,2cyclictest41-21ksoftirqd/322:20:003
19886993127,3cyclictest33-21ksoftirqd/220:21:142
19886993126,3cyclictest33-21ksoftirqd/223:09:432
19886993126,3cyclictest33-21ksoftirqd/219:59:062
19886993125,4cyclictest33-21ksoftirqd/223:13:232
19886993125,4cyclictest33-21ksoftirqd/222:30:362
19886993125,4cyclictest33-21ksoftirqd/221:30:592
19886993125,4cyclictest33-21ksoftirqd/221:18:272
19886993110,18cyclictest27376-21/usr/sbin/munin21:35:092
19885993126,3cyclictest25-21ksoftirqd/123:00:111
19885993126,3cyclictest25-21ksoftirqd/122:47:271
19885993126,3cyclictest25-21ksoftirqd/121:51:511
19885993126,3cyclictest25-21ksoftirqd/121:05:091
19885993126,3cyclictest25-21ksoftirqd/120:14:291
19885993126,3cyclictest25-21ksoftirqd/100:04:001
19885993125,4cyclictest25-21ksoftirqd/100:22:181
19884993126,3cyclictest9-21ksoftirqd/023:31:540
19884993126,3cyclictest9-21ksoftirqd/022:45:120
19884993125,4cyclictest9-21ksoftirqd/023:03:070
19884993125,4cyclictest9-21ksoftirqd/022:13:280
19884993125,4cyclictest9-21ksoftirqd/022:13:280
19884993125,4cyclictest9-21ksoftirqd/020:09:410
19884993125,4cyclictest9-21ksoftirqd/019:29:290
19884993125,4cyclictest9-21ksoftirqd/000:38:590
138491310,0ptp4l401ktimersoftd/320:20:353
1988699308,3cyclictest31134-21proc_pri19:30:222
19886993024,4cyclictest33-21ksoftirqd/222:22:422
19885993025,3cyclictest25-21ksoftirqd/122:07:431
19885993025,3cyclictest25-21ksoftirqd/120:21:211
19884993025,3cyclictest9-21ksoftirqd/022:26:090
19884993025,3cyclictest9-21ksoftirqd/019:12:550
19884993025,3cyclictest9-21ksoftirqd/000:06:250
19884993024,4cyclictest9-21ksoftirqd/022:51:470
19884993024,4cyclictest9-21ksoftirqd/019:21:510
138491300,10ptp4l0-21swapper/321:56:463
138491300,10ptp4l0-21swapper/321:07:033
19886992923,4cyclictest33-21ksoftirqd/223:28:132
19886992923,4cyclictest33-21ksoftirqd/222:37:572
19886992923,4cyclictest33-21ksoftirqd/221:01:132
19886992923,4cyclictest33-21ksoftirqd/219:49:242
1988699291,4cyclictest0-21swapper/220:00:122
1988699290,3cyclictest62250irq/145-enp4s0-20:40:252
19885992923,4cyclictest25-21ksoftirqd/120:48:401
19885992923,4cyclictest25-21ksoftirqd/119:25:451
19885992923,4cyclictest25-21ksoftirqd/119:16:301
19885992923,4cyclictest25-21ksoftirqd/100:19:231
19884992924,3cyclictest9-21ksoftirqd/022:16:190
19884992924,3cyclictest9-21ksoftirqd/021:15:070
19884992924,3cyclictest9-21ksoftirqd/020:54:420
19884992923,4cyclictest9-21ksoftirqd/021:11:180
19884992923,4cyclictest9-21ksoftirqd/019:55:040
19887992822,3cyclictest41-21ksoftirqd/323:30:123
19886992823,3cyclictest33-21ksoftirqd/222:13:122
19886992823,3cyclictest33-21ksoftirqd/222:13:122
19886992823,3cyclictest33-21ksoftirqd/221:47:382
19886992823,3cyclictest33-21ksoftirqd/200:05:582
19885992822,4cyclictest25-21ksoftirqd/123:10:091
19885992822,4cyclictest25-21ksoftirqd/121:23:501
19884992823,3cyclictest9-21ksoftirqd/021:43:390
19884992823,3cyclictest9-21ksoftirqd/021:04:570
19884992823,3cyclictest9-21ksoftirqd/020:13:530
19884992823,3cyclictest9-21ksoftirqd/019:54:560
19884992822,4cyclictest9-21ksoftirqd/023:43:590
19884992822,4cyclictest9-21ksoftirqd/023:43:590
19884992822,4cyclictest9-21ksoftirqd/020:16:310
19886992722,3cyclictest33-21ksoftirqd/222:09:592
19885992722,3cyclictest25-21ksoftirqd/121:49:381
19885992722,3cyclictest25-21ksoftirqd/100:05:511
19885992721,4cyclictest25-21ksoftirqd/123:41:551
19885992721,4cyclictest25-21ksoftirqd/123:41:551
19884992722,3cyclictest9-21ksoftirqd/021:56:000
19884992722,3cyclictest9-21ksoftirqd/019:18:050
19884992721,4cyclictest9-21ksoftirqd/022:41:520
19886992620,4cyclictest33-21ksoftirqd/220:17:132
1988699260,25cyclictest0-21swapper/222:18:452
19885992621,3cyclictest25-21ksoftirqd/100:15:001
19884992620,4cyclictest9-21ksoftirqd/023:54:090
19884992620,4cyclictest9-21ksoftirqd/020:37:410
19884992619,5cyclictest9-21ksoftirqd/022:55:330
1988699250,1cyclictest0-21swapper/221:09:232
19884992520,3cyclictest9-21ksoftirqd/023:40:010
19885992318,3cyclictest25-21ksoftirqd/122:00:311
19884992317,4cyclictest9-21ksoftirqd/021:08:370
19884992317,4cyclictest9-21ksoftirqd/020:04:560
19885992216,4cyclictest25-21ksoftirqd/123:58:281
19884992218,2cyclictest9-21ksoftirqd/021:50:160
19884992218,2cyclictest9-21ksoftirqd/019:45:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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