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2026-04-04 - 11:57
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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 Sat Apr 04, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205170,23phc2sys0-21swapper/319:07:553
72802199166,22sleep20-21swapper/219:06:382
74272195162,22sleep00-21swapper/019:08:330
73862191158,22sleep10-21swapper/119:08:001
1384911060,1ptp4l18760-21irqstats19:30:183
1384911060,1ptp4l18760-21irqstats19:30:183
138491950,3ptp4l401ktimersoftd/319:10:003
153412570,2sleep0111rcuc/023:45:160
322342560,6sleep2783599cyclictest00:20:002
291412530,1sleep00-21swapper/000:10:220
138491510,1ptp4l401ktimersoftd/300:32:323
215852500,2sleep30-21swapper/322:50:273
7833994841,4cyclictest2357-21ls00:25:000
7836994733,11cyclictest41-21ksoftirqd/320:05:003
7834994530,5cyclictest25-21ksoftirqd/122:26:541
783499450,43cyclictest0-21swapper/123:43:031
754124433,6sleep00-21swapper/019:10:010
783599430,1cyclictest0-21swapper/223:40:332
7834994315,27cyclictest0-21swapper/121:16:531
7834994314,27cyclictest0-21swapper/100:35:331
783499430,41cyclictest0-21swapper/119:13:231
138491430,1ptp4l401ktimersoftd/320:21:083
138491430,0ptp4l401ktimersoftd/322:45:543
138491410,0ptp4l401ktimersoftd/322:00:453
50798400,2rtkit-daemon506-21rtkit-daemon23:20:142
138491400,1ptp4l401ktimersoftd/323:59:233
783599390,2cyclictest0-21swapper/200:02:122
138491390,1ptp4l401ktimersoftd/323:35:103
138491390,0ptp4l401ktimersoftd/321:40:153
7835993833,4cyclictest33-21ksoftirqd/219:45:012
7835993832,4cyclictest33-21ksoftirqd/200:28:222
7834993831,4cyclictest25-21ksoftirqd/120:51:031
7834993824,5cyclictest25-21ksoftirqd/122:06:321
7833993832,3cyclictest420-21rs:main0
7833993832,3cyclictest20006-21wc19:35:000
7833993832,3cyclictest20006-21wc19:35:000
7835993731,4cyclictest33-21ksoftirqd/223:32:422
7835993731,4cyclictest33-21ksoftirqd/222:23:422
7835993731,4cyclictest33-21ksoftirqd/200:11:522
7835993730,4cyclictest33-21ksoftirqd/222:50:582
783499378,27cyclictest0-21swapper/100:20:231
783399370,2cyclictest121rcu_preempt22:26:540
138491370,0ptp4l401ktimersoftd/323:20:243
138491370,0ptp4l401ktimersoftd/320:42:303
138491370,0ptp4l401ktimersoftd/300:05:133
7836993631,3cyclictest41-21ksoftirqd/300:22:383
7835993631,3cyclictest33-21ksoftirqd/220:19:222
7835993631,3cyclictest33-21ksoftirqd/220:05:202
7835993630,4cyclictest33-21ksoftirqd/221:26:092
7835993630,4cyclictest29382-21cron23:10:012
7835993629,5cyclictest33-21ksoftirqd/220:23:312
7835993629,4cyclictest33-21ksoftirqd/200:10:012
7834993630,4cyclictest25-21ksoftirqd/122:42:191
7834993630,4cyclictest25-21ksoftirqd/122:33:081
7834993630,4cyclictest25-21ksoftirqd/119:36:241
7833993630,4cyclictest9-21ksoftirqd/023:39:220
138491360,0ptp4l401ktimersoftd/321:15:173
7836993530,3cyclictest41-21ksoftirqd/323:51:233
7836993530,3cyclictest41-21ksoftirqd/321:58:233
7836993530,3cyclictest41-21ksoftirqd/319:49:593
7836993529,4cyclictest41-21ksoftirqd/322:22:513
7836993529,4cyclictest41-21ksoftirqd/320:38:053
7836993529,4cyclictest41-21ksoftirqd/300:13:433
7835993530,3cyclictest33-21ksoftirqd/223:45:112
7835993530,3cyclictest33-21ksoftirqd/220:13:412
7835993530,3cyclictest33-21ksoftirqd/219:19:592
7835993529,4cyclictest33-21ksoftirqd/221:54:132
7835993529,4cyclictest33-21ksoftirqd/221:44:102
7835993529,4cyclictest33-21ksoftirqd/220:49:102
7835993529,4cyclictest33-21ksoftirqd/220:33:502
7834993530,3cyclictest25-21ksoftirqd/119:56:581
7834993529,4cyclictest25-21ksoftirqd/122:24:011
7834993529,4cyclictest25-21ksoftirqd/121:57:211
7834993529,4cyclictest25-21ksoftirqd/120:45:491
7834993529,4cyclictest25-21ksoftirqd/100:01:091
7833993530,3cyclictest9-21ksoftirqd/021:35:000
7833993529,4cyclictest9-21ksoftirqd/020:45:470
7833993529,4cyclictest9-21ksoftirqd/020:32:390
7833993529,4cyclictest9-21ksoftirqd/019:46:470
7833993529,4cyclictest9-21ksoftirqd/000:04:440
7836993429,3cyclictest41-21ksoftirqd/323:25:093
7836993429,3cyclictest41-21ksoftirqd/321:50:543
7836993429,3cyclictest41-21ksoftirqd/320:34:383
7836993429,3cyclictest41-21ksoftirqd/319:20:123
7836993428,4cyclictest41-21ksoftirqd/322:56:453
7836993428,4cyclictest41-21ksoftirqd/322:39:563
7836993428,4cyclictest41-21ksoftirqd/320:17:473
7836993428,3cyclictest41-21ksoftirqd/321:25:583
7835993429,3cyclictest33-21ksoftirqd/222:30:102
7835993429,3cyclictest33-21ksoftirqd/220:38:582
7835993428,4cyclictest33-21ksoftirqd/223:27:082
7835993428,4cyclictest33-21ksoftirqd/221:13:422
7835993428,4cyclictest33-21ksoftirqd/219:52:232
7835993428,4cyclictest33-21ksoftirqd/219:31:032
7835993428,4cyclictest33-21ksoftirqd/219:31:032
7834993429,3cyclictest25-21ksoftirqd/123:20:101
7834993429,3cyclictest25-21ksoftirqd/121:46:151
7834993429,3cyclictest25-21ksoftirqd/121:22:111
7834993428,4cyclictest25-21ksoftirqd/123:12:231
7834993428,4cyclictest25-21ksoftirqd/121:06:061
7834993428,4cyclictest25-21ksoftirqd/100:13:401
7833993429,3cyclictest9-21ksoftirqd/022:06:280
7833993428,4cyclictest9-21ksoftirqd/022:49:190
7833993428,4cyclictest9-21ksoftirqd/021:39:390
7833993428,4cyclictest9-21ksoftirqd/020:15:310
7833993428,4cyclictest9-21ksoftirqd/019:41:040
50798340,2rtkit-daemon506-21rtkit-daemon21:24:312
7836993328,3cyclictest41-21ksoftirqd/323:07:493
7836993328,3cyclictest41-21ksoftirqd/322:44:533
7836993328,3cyclictest41-21ksoftirqd/319:25:143
7836993327,4cyclictest41-21ksoftirqd/319:51:063
7836993327,4cyclictest41-21ksoftirqd/319:41:073
7836993327,4cyclictest41-21ksoftirqd/300:26:273
7836993327,4cyclictest41-21ksoftirqd/300:01:483
7835993329,3cyclictest33-21ksoftirqd/200:20:192
7835993327,4cyclictest33-21ksoftirqd/223:36:472
7835993327,4cyclictest33-21ksoftirqd/222:13:002
7835993327,4cyclictest33-21ksoftirqd/221:55:502
7835993327,4cyclictest33-21ksoftirqd/220:51:472
7835993327,4cyclictest33-21ksoftirqd/220:01:572
7834993328,3cyclictest25-21ksoftirqd/121:37:111
7834993328,3cyclictest25-21ksoftirqd/121:01:571
7834993328,3cyclictest25-21ksoftirqd/120:11:011
7834993328,3cyclictest25-21ksoftirqd/119:28:431
7834993327,4cyclictest25-21ksoftirqd/123:59:091
7834993327,4cyclictest25-21ksoftirqd/122:58:551
7834993327,4cyclictest25-21ksoftirqd/121:33:261
7834993327,4cyclictest25-21ksoftirqd/119:51:531
7834993327,4cyclictest25-21ksoftirqd/119:47:391
7834993327,4cyclictest25-21ksoftirqd/119:23:291
7834993327,4cyclictest25-21ksoftirqd/119:16:421
7834993327,3cyclictest25-21ksoftirqd/120:25:101
7833993328,3cyclictest9-21ksoftirqd/023:58:110
7833993327,4cyclictest9-21ksoftirqd/023:05:360
7833993327,4cyclictest9-21ksoftirqd/022:13:410
7833993327,4cyclictest9-21ksoftirqd/021:26:510
7833993327,4cyclictest9-21ksoftirqd/020:25:580
7833993327,4cyclictest9-21ksoftirqd/000:32:210
50798330,2rtkit-daemon506-21rtkit-daemon19:57:503
138491330,0ptp4l401ktimersoftd/320:59:423
7836993229,2cyclictest41-21ksoftirqd/322:20:003
7836993227,3cyclictest41-21ksoftirqd/322:05:583
7836993227,3cyclictest41-21ksoftirqd/320:46:533
7836993227,3cyclictest41-21ksoftirqd/319:35:433
7836993227,3cyclictest41-21ksoftirqd/319:19:143
7836993227,3cyclictest41-21ksoftirqd/300:16:063
7836993226,4cyclictest41-21ksoftirqd/323:49:203
7836993226,4cyclictest41-21ksoftirqd/322:32:293
7836993226,4cyclictest41-21ksoftirqd/321:02:233
7836993226,3cyclictest41-21ksoftirqd/323:20:003
7835993226,4cyclictest33-21ksoftirqd/222:07:252
7835993226,4cyclictest33-21ksoftirqd/200:34:322
7834993227,3cyclictest25-21ksoftirqd/122:45:121
7834993227,3cyclictest25-21ksoftirqd/120:38:261
7834993226,4cyclictest25-21ksoftirqd/123:33:171
7834993226,4cyclictest25-21ksoftirqd/123:01:201
7834993226,4cyclictest25-21ksoftirqd/120:59:161
7834993226,4cyclictest25-21ksoftirqd/120:42:001
7833993227,3cyclictest9-21ksoftirqd/022:23:560
7833993226,4cyclictest9-21ksoftirqd/023:29:070
7833993226,4cyclictest9-21ksoftirqd/021:58:210
7833993226,4cyclictest9-21ksoftirqd/020:52:490
7833993226,4cyclictest9-21ksoftirqd/000:17:040
138491320,0ptp4l401ktimersoftd/321:33:143
7836993126,3cyclictest41-21ksoftirqd/322:14:233
7836993126,3cyclictest41-21ksoftirqd/320:52:493
7836993126,3cyclictest41-21ksoftirqd/320:15:003
7836993125,4cyclictest41-21ksoftirqd/321:35:053
7835993127,2cyclictest33-21ksoftirqd/223:50:192
7835993126,3cyclictest33-21ksoftirqd/222:40:012
7835993126,3cyclictest33-21ksoftirqd/222:25:172
7835993125,4cyclictest33-21ksoftirqd/223:57:042
7835993125,4cyclictest33-21ksoftirqd/222:44:082
7835993125,4cyclictest33-21ksoftirqd/220:45:002
7835993124,4cyclictest1319-21snmpd22:45:032
7835993120,9cyclictest33-21ksoftirqd/222:55:222
7834993126,3cyclictest25-21ksoftirqd/123:05:131
7834993125,4cyclictest25-21ksoftirqd/121:12:521
7834993125,4cyclictest25-21ksoftirqd/120:21:291
7834993125,4cyclictest25-21ksoftirqd/119:42:221
7834993125,4cyclictest25-21ksoftirqd/100:27:251
7833993126,3cyclictest9-21ksoftirqd/023:33:440
7833993126,3cyclictest9-21ksoftirqd/021:13:490
7833993126,3cyclictest9-21ksoftirqd/021:08:350
7833993126,3cyclictest9-21ksoftirqd/000:06:380
7833993125,4cyclictest9-21ksoftirqd/023:53:460
7833993125,4cyclictest9-21ksoftirqd/023:42:190
7833993125,4cyclictest9-21ksoftirqd/023:12:300
7833993125,4cyclictest9-21ksoftirqd/020:41:420
7833993125,4cyclictest9-21ksoftirqd/020:37:330
7833993125,4cyclictest9-21ksoftirqd/000:39:070
7833993124,5cyclictest9-21ksoftirqd/023:21:250
138491310,0ptp4l401ktimersoftd/323:32:513
138491310,0ptp4l401ktimersoftd/322:27:373
7836993024,4cyclictest41-21ksoftirqd/321:24:503
7835993025,3cyclictest33-21ksoftirqd/221:38:222
7835993025,3cyclictest33-21ksoftirqd/221:08:252
7835993025,3cyclictest33-21ksoftirqd/219:46:042
7835993024,4cyclictest33-21ksoftirqd/222:15:122
7835993018,10cyclictest33-21ksoftirqd/222:00:262
7834993025,3cyclictest25-21ksoftirqd/121:51:161
7834993025,3cyclictest25-21ksoftirqd/121:25:351
7834993024,4cyclictest25-21ksoftirqd/120:32:201
7834993024,4cyclictest25-21ksoftirqd/100:15:421
7833993025,3cyclictest9-21ksoftirqd/022:57:060
7833993025,3cyclictest9-21ksoftirqd/022:17:010
7833993025,3cyclictest12320-21cron20:25:000
7833993024,4cyclictest9-21ksoftirqd/023:18:240
7833993024,4cyclictest9-21ksoftirqd/021:40:510
7833993024,4cyclictest9-21ksoftirqd/021:01:480
138491300,0ptp4l401ktimersoftd/321:07:473
7836992924,3cyclictest41-21ksoftirqd/321:48:183
7836992923,4cyclictest41-21ksoftirqd/300:39:053
7835992925,3cyclictest33-21ksoftirqd/200:37:502
7835992924,3cyclictest33-21ksoftirqd/221:48:122
7835992924,3cyclictest33-21ksoftirqd/220:29:102
7835992924,3cyclictest33-21ksoftirqd/219:12:192
7835992923,4cyclictest33-21ksoftirqd/221:15:142
7835992923,4cyclictest33-21ksoftirqd/221:04:282
7835992923,4cyclictest33-21ksoftirqd/220:58:292
7835992923,3cyclictest33-21ksoftirqd/221:30:122
7834992924,3cyclictest25-21ksoftirqd/122:50:111
7834992924,3cyclictest25-21ksoftirqd/122:38:201
7834992923,4cyclictest25-21ksoftirqd/123:53:431
7834992923,4cyclictest25-21ksoftirqd/122:14:221
7834992923,4cyclictest25-21ksoftirqd/119:33:521
7834992923,4cyclictest25-21ksoftirqd/119:33:521
7833992924,3cyclictest9-21ksoftirqd/021:20:460
7833992924,3cyclictest9-21ksoftirqd/019:21:030
138491290,0ptp4l401ktimersoftd/320:26:313
138491290,0ptp4l401ktimersoftd/320:06:303
7836992823,3cyclictest41-21ksoftirqd/323:43:043
7836992823,3cyclictest41-21ksoftirqd/323:01:413
7836992823,3cyclictest41-21ksoftirqd/321:11:443
7836992822,4cyclictest41-21ksoftirqd/323:10:183
7834992823,3cyclictest25-21ksoftirqd/123:45:081
7834992823,3cyclictest25-21ksoftirqd/121:40:191
7834992823,3cyclictest25-21ksoftirqd/100:08:471
7834992822,4cyclictest25-21ksoftirqd/120:05:571
7833992823,3cyclictest9-21ksoftirqd/022:01:250
7833992823,3cyclictest9-21ksoftirqd/019:36:490
7833992822,4cyclictest9-21ksoftirqd/020:11:180
7835992723,2cyclictest33-21ksoftirqd/219:55:252
7835992722,3cyclictest33-21ksoftirqd/223:17:362
7835992722,3cyclictest33-21ksoftirqd/223:14:372
7835992721,4cyclictest33-21ksoftirqd/219:24:462
7834992722,3cyclictest25-21ksoftirqd/123:38:101
7834992722,3cyclictest25-21ksoftirqd/122:16:181
7834992722,3cyclictest25-21ksoftirqd/100:30:461
7834992721,4cyclictest25-21ksoftirqd/123:27:441
7834992721,4cyclictest25-21ksoftirqd/122:00:541
7834992721,4cyclictest25-21ksoftirqd/120:15:111
7833992722,3cyclictest9-21ksoftirqd/023:01:030
7833992722,3cyclictest9-21ksoftirqd/020:05:070
7833992721,4cyclictest9-21ksoftirqd/021:55:000
7835992621,3cyclictest33-21ksoftirqd/219:38:122
7835992615,9cyclictest33-21ksoftirqd/223:00:242
7833992621,3cyclictest9-21ksoftirqd/000:28:000
7833992620,4cyclictest9-21ksoftirqd/021:19:180
7833992620,4cyclictest9-21ksoftirqd/019:53:370
7833992618,5cyclictest9-21ksoftirqd/020:55:020
90222518,3sleep125-21ksoftirqd/123:15:211
7833992520,3cyclictest9-21ksoftirqd/022:51:410
7833992520,3cyclictest9-21ksoftirqd/021:46:530
7833992519,4cyclictest9-21ksoftirqd/022:42:490
7835992418,4cyclictest33-21ksoftirqd/219:27:102
7833992419,3cyclictest9-21ksoftirqd/020:02:040
7833992418,4cyclictest9-21ksoftirqd/019:27:040
7834992317,4cyclictest25-21ksoftirqd/120:00:591
7833992318,3cyclictest9-21ksoftirqd/019:15:110
7833992217,3cyclictest9-21ksoftirqd/019:56:040
7833992216,4cyclictest9-21ksoftirqd/022:37:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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