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2026-09-11 - 11:14
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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 rackdslot2.osadl.org (updated Fri Sep 11, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40942207173,23sleep10-21swapper/119:08:451
139591206174,21phc2sys0-21swapper/319:06:533
40302204170,22sleep00-21swapper/019:07:550
40632203168,23sleep20-21swapper/219:08:222
2614321560,1sleep20-21swapper/222:10:132
1729321550,6sleep0448399cyclictest19:35:180
1395918363,11phc2sys0-21swapper/319:10:003
448599747,24cyclictest26090-21date19:55:012
59442730,7sleep0448399cyclictest22:35:150
448599561,4cyclictest5572-21chrt20:19:292
448599561,3cyclictest31588-21chrt23:28:202
137342550,2sleep10-21swapper/100:00:011
139291540,0ptp4l401ktimersoftd/322:39:583
139291530,1ptp4l401ktimersoftd/321:24:373
448599510,4cyclictest24436-21chrt23:13:002
448599510,3cyclictest7683-21chrt22:39:422
448599510,3cyclictest690-21chrt00:36:082
448599510,3cyclictest18452-21taskset00:08:362
419125136,7sleep00-21swapper/019:10:010
169242500,1sleep016923-21cat21:50:190
41298490,2rtkit-daemon0-21swapper/020:57:480
448599461,42cyclictest29412-21sh21:10:012
4483994641,3cyclictest9-21ksoftirqd/019:20:000
139291440,0ptp4l401ktimersoftd/322:50:093
139291440,0ptp4l401ktimersoftd/300:25:013
139291430,0ptp4l401ktimersoftd/320:35:413
139291430,0ptp4l401ktimersoftd/300:13:413
41298420,2rtkit-daemon0-21swapper/121:55:031
4486994133,4cyclictest41-21ksoftirqd/321:50:133
4484994137,2cyclictest25-21ksoftirqd/123:20:011
4484994136,3cyclictest25-21ksoftirqd/119:40:011
4484994134,4cyclictest25-21ksoftirqd/120:45:011
4483994135,3cyclictest9-21ksoftirqd/021:20:000
4484994035,3cyclictest25-21ksoftirqd/123:10:011
4484994035,3cyclictest25-21ksoftirqd/123:10:001
4484994034,3cyclictest25-21ksoftirqd/123:45:251
4483994034,3cyclictest31784-21turbostat.cron21:15:010
4486993933,4cyclictest41-21ksoftirqd/319:39:253
4485993933,4cyclictest33-21ksoftirqd/221:12:302
4484993934,3cyclictest25-21ksoftirqd/100:20:011
4484993933,3cyclictest25-21ksoftirqd/121:45:001
4484993932,5cyclictest25-21ksoftirqd/100:25:001
41298390,5rtkit-daemon24988-21timedrift22:05:261
4486993833,3cyclictest41-21ksoftirqd/322:40:113
4486993832,4cyclictest41-21ksoftirqd/321:03:593
4486993832,4cyclictest41-21ksoftirqd/320:27:003
448599382,22cyclictest0-21swapper/220:14:362
4485993822,14cyclictest33-21ksoftirqd/219:40:172
448599380,3cyclictest197242sleep220:48:182
4484993833,3cyclictest25-21ksoftirqd/121:40:011
4486993732,3cyclictest41-21ksoftirqd/322:03:533
4486993731,4cyclictest41-21ksoftirqd/323:38:523
4486993731,4cyclictest41-21ksoftirqd/322:07:543
4486993731,4cyclictest41-21ksoftirqd/321:12:383
4486993731,4cyclictest41-21ksoftirqd/320:48:363
4486993730,4cyclictest41-21ksoftirqd/320:50:263
4486993730,4cyclictest41-21ksoftirqd/300:07:263
4485993731,4cyclictest33-21ksoftirqd/222:31:042
4485993731,4cyclictest33-21ksoftirqd/222:26:582
4485993731,4cyclictest33-21ksoftirqd/221:26:052
4485993731,4cyclictest33-21ksoftirqd/219:13:152
4485993731,4cyclictest33-21ksoftirqd/200:31:592
4485993731,4cyclictest33-21ksoftirqd/200:26:292
448599371,3cyclictest24325-21chrt20:55:562
4484993733,3cyclictest25-21ksoftirqd/120:40:001
4484993732,3cyclictest25-21ksoftirqd/122:55:001
4484993731,3cyclictest25-21ksoftirqd/122:20:011
4484993730,4cyclictest509-21cron22:25:011
4484993730,4cyclictest29355-21cron23:25:001
4484993730,4cyclictest25-21ksoftirqd/119:55:571
4483993732,2cyclictest9-21ksoftirqd/000:25:000
4483993731,4cyclictest9-21ksoftirqd/020:45:310
139291370,1ptp4l401ktimersoftd/323:25:133
4486993631,3cyclictest41-21ksoftirqd/322:25:043
4486993631,3cyclictest41-21ksoftirqd/300:35:123
4486993630,4cyclictest41-21ksoftirqd/320:10:123
4486993630,4cyclictest41-21ksoftirqd/320:00:423
4486993630,3cyclictest41-21ksoftirqd/320:20:013
448599363,19cyclictest0-21swapper/200:20:472
4485993631,3cyclictest33-21ksoftirqd/221:21:512
4485993630,4cyclictest33-21ksoftirqd/223:41:122
4485993630,4cyclictest33-21ksoftirqd/222:17:152
4485993630,4cyclictest33-21ksoftirqd/221:56:062
4485993630,4cyclictest33-21ksoftirqd/220:31:382
4484993631,3cyclictest25-21ksoftirqd/122:10:121
4484993631,3cyclictest25-21ksoftirqd/122:04:591
4484993631,3cyclictest25-21ksoftirqd/121:15:121
4484993631,3cyclictest25-21ksoftirqd/100:00:191
4484993630,4cyclictest25-21ksoftirqd/100:31:501
4484993630,3cyclictest25-21ksoftirqd/123:10:021
4484993630,3cyclictest25-21ksoftirqd/119:45:001
4483993631,3cyclictest9-21ksoftirqd/000:27:320
4483993631,2cyclictest9-21ksoftirqd/022:05:000
4483993630,4cyclictest9-21ksoftirqd/023:36:290
4483993630,4cyclictest9-21ksoftirqd/020:36:570
4483993630,3cyclictest9-21ksoftirqd/000:15:120
4486993529,4cyclictest41-21ksoftirqd/323:40:053
4486993529,4cyclictest41-21ksoftirqd/321:41:463
4486993529,4cyclictest41-21ksoftirqd/321:38:223
4486993529,4cyclictest41-21ksoftirqd/319:43:333
4486993529,4cyclictest41-21ksoftirqd/300:04:043
4486993529,3cyclictest41-21ksoftirqd/320:45:013
448699350,3cyclictest121rcu_preempt21:31:313
4485993530,3cyclictest33-21ksoftirqd/222:24:582
4485993530,3cyclictest33-21ksoftirqd/219:35:112
4485993529,4cyclictest33-21ksoftirqd/221:33:072
4485993529,4cyclictest33-21ksoftirqd/220:01:412
448599350,3cyclictest12374-21taskset22:48:502
4484993530,3cyclictest25-21ksoftirqd/123:40:001
4484993530,3cyclictest25-21ksoftirqd/123:26:281
4484993530,3cyclictest25-21ksoftirqd/121:00:171
4484993530,3cyclictest25-21ksoftirqd/119:45:131
4484993529,4cyclictest25-21ksoftirqd/123:33:181
4484993529,3cyclictest25-21ksoftirqd/122:44:591
4484993529,3cyclictest25-21ksoftirqd/119:35:011
4483993530,3cyclictest9-21ksoftirqd/022:53:130
4483993529,4cyclictest9-21ksoftirqd/023:51:010
4483993529,4cyclictest9-21ksoftirqd/022:07:430
4483993529,4cyclictest9-21ksoftirqd/020:17:300
41298350,2rtkit-daemon0-21swapper/100:39:401
1395913528,3phc2sys41-21ksoftirqd/322:15:223
4486993429,3cyclictest41-21ksoftirqd/320:59:503
4486993429,3cyclictest41-21ksoftirqd/320:05:123
4486993429,3cyclictest41-21ksoftirqd/319:25:513
4486993428,4cyclictest41-21ksoftirqd/323:05:483
4486993428,4cyclictest41-21ksoftirqd/323:05:473
4486993428,4cyclictest41-21ksoftirqd/322:58:083
4486993428,4cyclictest41-21ksoftirqd/321:27:593
4486993428,4cyclictest41-21ksoftirqd/300:34:583
4485993429,3cyclictest33-21ksoftirqd/220:37:092
4485993429,3cyclictest33-21ksoftirqd/219:30:392
4485993429,3cyclictest33-21ksoftirqd/219:28:312
4485993428,4cyclictest33-21ksoftirqd/223:56:572
4485993428,4cyclictest33-21ksoftirqd/222:44:482
4485993428,4cyclictest33-21ksoftirqd/220:28:132
4485993428,4cyclictest33-21ksoftirqd/219:24:222
4485993428,4cyclictest33-21ksoftirqd/219:17:482
4485993427,4cyclictest33-21ksoftirqd/221:35:472
4484993430,2cyclictest4055-21kworker/1:119:25:111
4484993430,2cyclictest25-21ksoftirqd/121:55:001
4484993430,2cyclictest25-21ksoftirqd/119:14:591
4484993429,3cyclictest25-21ksoftirqd/121:30:001
4484993428,3cyclictest25-21ksoftirqd/121:35:011
4484993428,3cyclictest25-21ksoftirqd/120:52:071
4484993428,3cyclictest25-21ksoftirqd/120:20:131
4483993430,2cyclictest9-21ksoftirqd/022:40:180
4483993429,3cyclictest9-21ksoftirqd/022:47:190
4483993429,3cyclictest9-21ksoftirqd/021:40:310
4483993429,3cyclictest9-21ksoftirqd/020:13:010
4483993429,3cyclictest9-21ksoftirqd/019:48:220
4483993429,3cyclictest9-21ksoftirqd/000:32:170
4483993428,4cyclictest9-21ksoftirqd/023:34:000
4483993428,4cyclictest9-21ksoftirqd/023:17:590
4483993428,4cyclictest9-21ksoftirqd/023:06:160
4483993428,4cyclictest9-21ksoftirqd/023:06:160
4483993428,4cyclictest9-21ksoftirqd/020:52:490
4483993428,4cyclictest9-21ksoftirqd/000:12:590
4483993428,4cyclictest9-21ksoftirqd/000:09:300
4483993428,3cyclictest9-21ksoftirqd/022:55:200
4483993428,3cyclictest9-21ksoftirqd/021:25:190
4483993428,3cyclictest9-21ksoftirqd/000:00:010
139291340,1ptp4l391rcuc/321:55:233
4486993328,3cyclictest41-21ksoftirqd/323:51:583
4486993328,3cyclictest41-21ksoftirqd/322:34:423
4486993328,3cyclictest41-21ksoftirqd/321:15:143
4486993328,3cyclictest41-21ksoftirqd/319:18:283
4486993327,4cyclictest41-21ksoftirqd/319:46:543
4485993328,3cyclictest33-21ksoftirqd/223:17:592
4485993328,3cyclictest33-21ksoftirqd/222:08:292
4485993327,4cyclictest33-21ksoftirqd/223:52:352
4485993327,4cyclictest33-21ksoftirqd/220:40:072
448499335,6cyclictest25-21ksoftirqd/122:49:591
4484993329,3cyclictest25-21ksoftirqd/120:45:191
4484993328,3cyclictest25-21ksoftirqd/120:15:011
4484993328,2cyclictest25-21ksoftirqd/121:00:001
4484993327,4cyclictest25-21ksoftirqd/122:39:251
4484993327,4cyclictest25-21ksoftirqd/120:06:451
4484993327,4cyclictest25-21ksoftirqd/119:19:591
4484993327,3cyclictest25-21ksoftirqd/123:42:071
4484993327,3cyclictest25-21ksoftirqd/122:30:191
4483993328,3cyclictest9-21ksoftirqd/023:21:280
4483993328,3cyclictest9-21ksoftirqd/023:02:390
4483993328,3cyclictest9-21ksoftirqd/023:02:390
4483993328,3cyclictest9-21ksoftirqd/022:20:000
4483993328,3cyclictest9-21ksoftirqd/019:34:510
4483993328,3cyclictest9-21ksoftirqd/019:29:050
4483993328,3cyclictest9-21ksoftirqd/000:39:000
4483993327,4cyclictest9-21ksoftirqd/021:21:250
4483993327,4cyclictest9-21ksoftirqd/020:27:260
4486993227,3cyclictest41-21ksoftirqd/323:20:553
4486993227,3cyclictest41-21ksoftirqd/320:20:103
4486993226,4cyclictest41-21ksoftirqd/323:15:473
4486993226,4cyclictest41-21ksoftirqd/322:11:433
4486993226,4cyclictest41-21ksoftirqd/321:45:243
4486993226,4cyclictest41-21ksoftirqd/321:07:523
4486993226,4cyclictest41-21ksoftirqd/300:23:173
4485993227,3cyclictest33-21ksoftirqd/223:47:482
4485993226,4cyclictest33-21ksoftirqd/223:08:222
4485993226,4cyclictest33-21ksoftirqd/223:08:222
4485993226,4cyclictest33-21ksoftirqd/222:56:112
4485993226,4cyclictest33-21ksoftirqd/221:16:102
4485993213,16cyclictest19752-21sed23:05:002
4485993213,16cyclictest19752-21sed23:05:002
4484993227,3cyclictest25-21ksoftirqd/121:10:171
4484993227,3cyclictest25-21ksoftirqd/121:08:591
4484993227,3cyclictest25-21ksoftirqd/120:25:191
4484993227,3cyclictest16652-21fschecks_count00:05:151
4484993227,2cyclictest25-21ksoftirqd/100:10:211
4484993226,3cyclictest25-21ksoftirqd/121:20:221
448499321,3cyclictest121rcu_preempt19:51:431
4483993228,3cyclictest9-21ksoftirqd/021:55:180
4483993227,3cyclictest9-21ksoftirqd/021:30:440
4483993227,3cyclictest9-21ksoftirqd/019:53:120
4483993226,4cyclictest9-21ksoftirqd/023:10:370
4483993226,4cyclictest9-21ksoftirqd/022:28:410
4483993226,4cyclictest9-21ksoftirqd/020:42:060
4483993226,4cyclictest9-21ksoftirqd/019:55:570
4483993226,3cyclictest9-21ksoftirqd/022:30:180
4486993126,3cyclictest41-21ksoftirqd/323:10:523
4486993126,3cyclictest41-21ksoftirqd/319:50:263
4486993125,4cyclictest41-21ksoftirqd/323:03:473
4486993125,4cyclictest41-21ksoftirqd/323:03:463
448599318,20cyclictest25636-21sed21:00:182
448599316,22cyclictest21081-21latency20:50:202
4485993126,3cyclictest33-21ksoftirqd/221:41:552
4485993126,3cyclictest33-21ksoftirqd/200:10:132
4485993125,4cyclictest33-21ksoftirqd/223:31:012
4485993125,4cyclictest33-21ksoftirqd/219:48:362
448599310,3cyclictest24368-1kworker/2:2H00:05:002
4484993127,2cyclictest25-21ksoftirqd/121:50:001
4484993126,3cyclictest25-21ksoftirqd/120:20:011
4484993126,3cyclictest25-21ksoftirqd/100:30:001
4484993126,2cyclictest25-21ksoftirqd/119:25:001
4484993124,4cyclictest25-21ksoftirqd/123:52:141
4483993125,4cyclictest9-21ksoftirqd/019:40:120
4483993124,4cyclictest9-21ksoftirqd/020:05:010
41298310,3rtkit-daemon16823-21/usr/sbin/munin22:55:291
4486993025,3cyclictest41-21ksoftirqd/320:30:313
4486993025,3cyclictest41-21ksoftirqd/319:24:343
4486993025,3cyclictest41-21ksoftirqd/300:16:383
448599308,20cyclictest21640-21expr00:15:132
448599308,19cyclictest28867-21sed23:20:262
4485993025,3cyclictest33-21ksoftirqd/220:21:232
4485993024,4cyclictest33-21ksoftirqd/222:01:392
4485993012,15cyclictest16423-21ls21:50:142
4484993025,3cyclictest25-21ksoftirqd/122:29:431
4484993025,2cyclictest25-21ksoftirqd/123:00:291
4484993025,2cyclictest25-21ksoftirqd/123:00:281
4484993024,3cyclictest25-21ksoftirqd/120:00:211
4483993025,3cyclictest9-21ksoftirqd/022:14:570
4483993025,3cyclictest9-21ksoftirqd/021:35:170
4483993025,3cyclictest9-21ksoftirqd/020:20:180
4483993025,3cyclictest9-21ksoftirqd/020:06:400
4483993025,3cyclictest9-21ksoftirqd/000:00:520
4483993024,4cyclictest9-21ksoftirqd/021:09:390
4486992924,3cyclictest41-21ksoftirqd/319:33:003
4486992924,2cyclictest41-21ksoftirqd/323:30:213
4485992924,3cyclictest33-21ksoftirqd/221:46:152
4485992918,9cyclictest33-21ksoftirqd/222:50:222
448599290,3cyclictest27696-21grep19:55:252
448599290,3cyclictest0-21swapper/223:35:162
4483992923,4cyclictest9-21ksoftirqd/021:03:090
4486992823,3cyclictest41-21ksoftirqd/323:48:443
448599280,2cyclictest5232sleep220:09:302
4483992823,3cyclictest9-21ksoftirqd/023:48:440
4483992823,3cyclictest9-21ksoftirqd/023:28:580
4483992822,4cyclictest9-21ksoftirqd/019:22:310
4483992822,3cyclictest9-21ksoftirqd/020:30:190
139291280,0ptp4l401ktimersoftd/319:59:543
4486992723,3cyclictest41-21ksoftirqd/322:45:253
4486992722,3cyclictest41-21ksoftirqd/323:55:473
4486992721,4cyclictest41-21ksoftirqd/322:20:553
4484992722,2cyclictest25-21ksoftirqd/120:30:461
4483992622,2cyclictest9-21ksoftirqd/023:40:210
4483992621,3cyclictest9-21ksoftirqd/022:20:180
4483992621,3cyclictest9-21ksoftirqd/021:49:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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