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2026-05-16 - 06:02
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Sat May 16, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277392205170,23sleep20-21swapper/219:06:342
277152205171,22sleep30-21swapper/319:06:153
277072205172,22sleep00-21swapper/019:06:090
278622203169,23sleep10-21swapper/119:08:101
1392911000,1ptp4l20767-21timerwakeupswit21:05:253
1395916244,10phc2sys0-21swapper/319:10:013
1395916244,10phc2sys0-21swapper/319:10:013
139291620,1ptp4l401ktimersoftd/319:30:153
2845899520,50cyclictest0-21swapper/120:28:451
102552510,2sleep00-21swapper/019:35:250
266692500,2sleep20-21swapper/222:25:242
2845999492,45cyclictest4917-21kworker/2:021:00:252
139291480,1ptp4l401ktimersoftd/322:50:493
139291460,1ptp4l401ktimersoftd/320:43:523
28460994510,3cyclictest41-21ksoftirqd/321:40:263
28460994439,3cyclictest41-21ksoftirqd/319:40:003
28457994410,4cyclictest9-21ksoftirqd/020:55:170
28457994410,4cyclictest9-21ksoftirqd/020:55:160
2845799439,3cyclictest9-21ksoftirqd/021:20:220
2845799436,4cyclictest9-21ksoftirqd/023:25:230
139291430,0ptp4l401ktimersoftd/321:24:393
2845799426,6cyclictest9-21ksoftirqd/023:00:010
28457994213,6cyclictest9-21ksoftirqd/021:45:250
139291420,0ptp4l401ktimersoftd/320:52:153
139291420,0ptp4l401ktimersoftd/300:20:313
28460994136,2cyclictest41-21ksoftirqd/322:35:003
28459994125,3cyclictest33-21ksoftirqd/220:35:102
2845799416,4cyclictest9-21ksoftirqd/020:15:220
2845799416,3cyclictest9-21ksoftirqd/020:45:250
2845799411,5cyclictest9-21ksoftirqd/023:35:000
139291410,0ptp4l401ktimersoftd/322:10:143
28460994034,3cyclictest41-21ksoftirqd/319:50:003
2845799409,5cyclictest9-21ksoftirqd/021:19:110
2845799408,4cyclictest9-21ksoftirqd/022:05:220
28457994034,3cyclictest9-21ksoftirqd/019:30:000
28457994034,3cyclictest9-21ksoftirqd/019:15:000
28457994034,3cyclictest9-21ksoftirqd/019:15:000
2845799401,3cyclictest121rcu_preempt22:55:010
28457994011,7cyclictest9-21ksoftirqd/022:20:000
28457994010,4cyclictest9-21ksoftirqd/023:14:240
28460993935,2cyclictest41-21ksoftirqd/322:00:003
28460993934,3cyclictest41-21ksoftirqd/323:40:003
28460993934,3cyclictest41-21ksoftirqd/320:30:003
28460993933,4cyclictest41-21ksoftirqd/322:59:153
28460993933,3cyclictest41-21ksoftirqd/321:20:003
2845799399,4cyclictest9-21ksoftirqd/020:14:160
2845799395,2cyclictest121rcu_preempt19:45:150
2845799395,2cyclictest121rcu_preempt00:15:170
2845799395,2cyclictest121rcu_preempt00:10:240
2845799394,4cyclictest9-21ksoftirqd/021:40:220
2845799394,2cyclictest121rcu_preempt21:00:200
28457993935,2cyclictest9-21ksoftirqd/020:00:000
28457993934,3cyclictest9-21ksoftirqd/000:25:000
28457993910,6cyclictest9-21ksoftirqd/020:01:440
28460993834,3cyclictest41-21ksoftirqd/322:15:203
28460993833,3cyclictest41-21ksoftirqd/323:20:003
28460993833,3cyclictest41-21ksoftirqd/323:15:013
28460993833,3cyclictest41-21ksoftirqd/320:05:263
28460993833,3cyclictest41-21ksoftirqd/319:55:053
28460993833,3cyclictest41-21ksoftirqd/319:20:013
28460993833,2cyclictest41-21ksoftirqd/323:45:113
28460993832,4cyclictest41-21ksoftirqd/323:55:513
28460993832,4cyclictest41-21ksoftirqd/322:37:233
28460993832,3cyclictest41-21ksoftirqd/321:15:003
28459993832,4cyclictest33-21ksoftirqd/221:12:592
2845899389,28cyclictest0-21swapper/100:29:341
2845799389,4cyclictest9-21ksoftirqd/000:05:220
2845799388,4cyclictest9-21ksoftirqd/020:32:570
2845799388,4cyclictest9-21ksoftirqd/000:38:200
2845799384,2cyclictest121rcu_preempt22:20:280
28457993834,2cyclictest9-21ksoftirqd/019:35:000
28457993833,3cyclictest9-21ksoftirqd/020:25:240
28457993833,3cyclictest9-21ksoftirqd/019:50:110
2845799383,2cyclictest121rcu_preempt21:25:130
28457993829,3cyclictest9-21ksoftirqd/019:15:230
2845799382,3cyclictest9-21ksoftirqd/023:20:160
2845799381,4cyclictest9-21ksoftirqd/022:35:160
2845799380,5cyclictest9-21ksoftirqd/023:40:250
28460993732,3cyclictest41-21ksoftirqd/321:47:183
28460993732,3cyclictest41-21ksoftirqd/300:35:013
28460993731,4cyclictest41-21ksoftirqd/323:20:113
28460993731,4cyclictest41-21ksoftirqd/320:58:563
28460993731,4cyclictest41-21ksoftirqd/320:58:563
28460993731,4cyclictest41-21ksoftirqd/320:37:583
28459993731,4cyclictest33-21ksoftirqd/222:11:442
28458993731,4cyclictest25-21ksoftirqd/121:18:481
28458993731,4cyclictest25-21ksoftirqd/120:46:501
28458993731,4cyclictest25-21ksoftirqd/120:12:121
2845799378,4cyclictest9-21ksoftirqd/000:28:300
2845799375,2cyclictest121rcu_preempt22:25:170
2845799373,2cyclictest121rcu_preempt23:00:130
28457993732,3cyclictest9-21ksoftirqd/023:05:250
28457993732,3cyclictest9-21ksoftirqd/022:30:130
28457993732,3cyclictest9-21ksoftirqd/021:10:000
28457993731,3cyclictest9-21ksoftirqd/000:00:000
28460993631,3cyclictest41-21ksoftirqd/321:40:013
28460993631,3cyclictest41-21ksoftirqd/319:25:143
28460993631,3cyclictest41-21ksoftirqd/300:10:183
28459993630,4cyclictest33-21ksoftirqd/222:09:232
28459993630,4cyclictest33-21ksoftirqd/220:32:072
28459993630,4cyclictest33-21ksoftirqd/220:23:122
28459993630,4cyclictest33-21ksoftirqd/200:11:552
28458993630,4cyclictest25-21ksoftirqd/123:21:111
28458993630,4cyclictest25-21ksoftirqd/122:04:251
28458993614,4cyclictest3204-21sh22:45:191
2845799368,3cyclictest9-21ksoftirqd/022:04:040
2845799365,6cyclictest9-21ksoftirqd/022:40:150
28457993632,2cyclictest9-21ksoftirqd/023:50:170
28457993632,2cyclictest9-21ksoftirqd/000:00:210
28457993631,3cyclictest9-21ksoftirqd/023:20:000
28457993631,3cyclictest9-21ksoftirqd/022:10:260
28457993631,3cyclictest9-21ksoftirqd/020:50:230
28457993630,4cyclictest9-21ksoftirqd/020:22:180
28457993629,4cyclictest9-21ksoftirqd/000:30:300
2845799361,4cyclictest9-21ksoftirqd/019:40:120
2845799360,4cyclictest9-21ksoftirqd/022:45:190
28460993530,3cyclictest41-21ksoftirqd/323:50:433
28460993530,3cyclictest41-21ksoftirqd/323:45:003
28460993530,3cyclictest41-21ksoftirqd/323:34:013
28460993530,3cyclictest41-21ksoftirqd/322:22:083
28460993530,3cyclictest41-21ksoftirqd/320:50:003
28460993530,3cyclictest41-21ksoftirqd/320:35:003
28460993530,3cyclictest41-21ksoftirqd/300:40:013
28460993529,4cyclictest41-21ksoftirqd/323:25:063
28460993529,4cyclictest41-21ksoftirqd/323:07:253
28460993529,4cyclictest41-21ksoftirqd/320:12:423
28460993529,4cyclictest41-21ksoftirqd/320:00:593
28460993529,4cyclictest41-21ksoftirqd/319:43:263
28460993528,4cyclictest41-21ksoftirqd/321:53:583
28459993530,3cyclictest33-21ksoftirqd/223:03:392
28459993530,3cyclictest33-21ksoftirqd/220:59:282
28459993530,3cyclictest33-21ksoftirqd/220:59:272
28459993530,3cyclictest33-21ksoftirqd/219:34:102
28459993529,4cyclictest33-21ksoftirqd/220:41:382
28459993529,4cyclictest33-21ksoftirqd/200:02:162
28458993530,3cyclictest25-21ksoftirqd/121:10:001
28458993530,3cyclictest25-21ksoftirqd/119:47:531
28458993529,4cyclictest25-21ksoftirqd/123:39:041
28458993529,4cyclictest25-21ksoftirqd/122:52:391
28458993529,4cyclictest25-21ksoftirqd/122:43:481
28458993529,4cyclictest25-21ksoftirqd/121:32:361
28458993529,4cyclictest25-21ksoftirqd/120:53:361
28458993529,4cyclictest25-21ksoftirqd/119:37:181
28458993529,4cyclictest25-21ksoftirqd/119:14:551
28458993529,4cyclictest25-21ksoftirqd/119:14:551
28458993529,4cyclictest25-21ksoftirqd/100:17:151
2845799357,3cyclictest9-21ksoftirqd/019:24:040
2845799355,2cyclictest121rcu_preempt21:10:160
28457993531,2cyclictest9-21ksoftirqd/020:05:130
28457993530,3cyclictest9-21ksoftirqd/023:45:240
28457993530,3cyclictest9-21ksoftirqd/021:50:180
28457993530,3cyclictest9-21ksoftirqd/021:35:100
28460993429,3cyclictest41-21ksoftirqd/322:25:113
28460993429,3cyclictest41-21ksoftirqd/300:00:053
28460993429,2cyclictest41-21ksoftirqd/323:00:183
28460993428,4cyclictest41-21ksoftirqd/321:01:283
28460993428,4cyclictest41-21ksoftirqd/319:21:153
28460993428,4cyclictest41-21ksoftirqd/300:16:043
28460993422,10cyclictest41-21ksoftirqd/322:00:173
28459993429,3cyclictest33-21ksoftirqd/200:10:002
28459993428,4cyclictest33-21ksoftirqd/223:55:572
28459993428,4cyclictest33-21ksoftirqd/223:48:392
28459993428,4cyclictest33-21ksoftirqd/223:16:312
28459993428,4cyclictest33-21ksoftirqd/222:32:022
28459993428,4cyclictest33-21ksoftirqd/221:06:252
28459993428,4cyclictest33-21ksoftirqd/219:55:282
28459993428,4cyclictest33-21ksoftirqd/200:16:522
28459993424,4cyclictest33-21ksoftirqd/222:54:042
28458993429,3cyclictest25-21ksoftirqd/123:16:101
28458993428,4cyclictest25-21ksoftirqd/121:27:021
28458993428,4cyclictest25-21ksoftirqd/120:00:491
28458993428,4cyclictest25-21ksoftirqd/119:42:311
28458993415,3cyclictest25729-21df_inode22:25:151
28458993415,3cyclictest21733-21cstates23:25:131
28457993430,2cyclictest9-21ksoftirqd/021:30:180
28457993430,2cyclictest9-21ksoftirqd/020:35:180
28457993429,3cyclictest9-21ksoftirqd/023:35:250
28457993428,4cyclictest9-21ksoftirqd/020:43:400
28457993428,3cyclictest9-21ksoftirqd/021:55:160
28460993329,2cyclictest41-21ksoftirqd/322:05:273
28460993328,3cyclictest41-21ksoftirqd/322:49:573
28460993328,3cyclictest41-21ksoftirqd/300:07:273
28459993328,3cyclictest33-21ksoftirqd/222:24:282
28459993328,3cyclictest33-21ksoftirqd/220:15:542
28459993328,3cyclictest33-21ksoftirqd/200:38:182
28459993327,4cyclictest33-21ksoftirqd/223:51:522
28459993327,4cyclictest33-21ksoftirqd/223:44:582
28459993327,4cyclictest33-21ksoftirqd/223:25:332
28459993327,4cyclictest33-21ksoftirqd/221:47:292
28459993327,4cyclictest33-21ksoftirqd/221:30:402
28459993327,4cyclictest33-21ksoftirqd/221:24:382
28459993327,4cyclictest33-21ksoftirqd/219:23:192
28459993327,4cyclictest33-21ksoftirqd/200:32:412
28459993327,3cyclictest8940-21fschecks_count19:35:142
2845999331,10cyclictest1506-21fschecks_count21:35:162
28458993328,3cyclictest25-21ksoftirqd/122:18:401
28458993328,3cyclictest25-21ksoftirqd/121:55:411
28458993328,3cyclictest25-21ksoftirqd/119:54:141
28458993328,3cyclictest25-21ksoftirqd/119:25:541
28458993328,3cyclictest25-21ksoftirqd/119:18:451
28458993327,4cyclictest25-21ksoftirqd/121:53:581
28458993327,4cyclictest25-21ksoftirqd/120:37:071
28458993327,4cyclictest25-21ksoftirqd/120:18:261
28458993327,4cyclictest25-21ksoftirqd/100:06:121
28458993326,4cyclictest25-21ksoftirqd/122:30:121
28460993228,2cyclictest41-21ksoftirqd/319:50:283
28460993227,3cyclictest41-21ksoftirqd/320:22:293
28460993226,4cyclictest41-21ksoftirqd/321:31:133
28460993226,4cyclictest41-21ksoftirqd/320:19:283
28459993227,3cyclictest33-21ksoftirqd/222:03:532
28459993227,3cyclictest33-21ksoftirqd/221:51:442
28459993227,3cyclictest33-21ksoftirqd/219:52:072
28459993227,3cyclictest33-21ksoftirqd/219:42:022
28459993227,3cyclictest33-21ksoftirqd/200:25:122
28459993226,4cyclictest33-21ksoftirqd/223:23:212
28459993226,4cyclictest33-21ksoftirqd/222:19:412
28459993226,4cyclictest33-21ksoftirqd/221:16:402
28459993226,4cyclictest33-21ksoftirqd/220:14:502
28458993227,3cyclictest25-21ksoftirqd/123:34:031
28458993227,3cyclictest25-21ksoftirqd/121:23:051
28458993227,3cyclictest25-21ksoftirqd/119:23:501
28458993227,3cyclictest25-21ksoftirqd/100:22:081
28458993227,3cyclictest25-21ksoftirqd/100:13:091
28458993226,4cyclictest25-21ksoftirqd/121:48:321
28458993226,4cyclictest25-21ksoftirqd/120:41:411
139291320,9ptp4l0-21swapper/300:25:493
28460993126,3cyclictest41-21ksoftirqd/322:44:033
28460993126,3cyclictest41-21ksoftirqd/321:29:493
28459993126,3cyclictest33-21ksoftirqd/223:37:512
28459993126,3cyclictest33-21ksoftirqd/223:05:192
28459993126,3cyclictest33-21ksoftirqd/222:35:422
28459993125,4cyclictest33-21ksoftirqd/221:29:402
28459993125,4cyclictest33-21ksoftirqd/220:26:532
28459993125,4cyclictest33-21ksoftirqd/220:00:542
28459993125,4cyclictest33-21ksoftirqd/219:12:162
28459993125,4cyclictest33-21ksoftirqd/219:12:162
28458993126,3cyclictest25-21ksoftirqd/123:54:241
28458993126,3cyclictest25-21ksoftirqd/123:43:131
28458993126,3cyclictest25-21ksoftirqd/122:08:501
28458993125,4cyclictest25-21ksoftirqd/123:57:131
28458993125,4cyclictest25-21ksoftirqd/123:02:301
28458993125,4cyclictest25-21ksoftirqd/122:38:191
28458993125,4cyclictest25-21ksoftirqd/121:14:341
28458993125,4cyclictest25-21ksoftirqd/120:07:471
28459993025,3cyclictest33-21ksoftirqd/223:12:462
28459993025,3cyclictest33-21ksoftirqd/219:47:462
28459993024,4cyclictest33-21ksoftirqd/222:46:502
28458993025,3cyclictest25-21ksoftirqd/123:46:171
28458993025,3cyclictest25-21ksoftirqd/122:57:111
28458993024,4cyclictest25-21ksoftirqd/100:03:311
28459992924,3cyclictest33-21ksoftirqd/223:33:572
28459992924,3cyclictest33-21ksoftirqd/222:56:562
28459992924,3cyclictest33-21ksoftirqd/222:40:122
28459992924,3cyclictest33-21ksoftirqd/221:40:272
28459992924,3cyclictest33-21ksoftirqd/219:18:032
28459992923,4cyclictest33-21ksoftirqd/220:46:112
28459992923,4cyclictest33-21ksoftirqd/200:21:382
28459992823,3cyclictest33-21ksoftirqd/220:54:242
28459992823,3cyclictest33-21ksoftirqd/220:06:232
28458992823,3cyclictest25-21ksoftirqd/122:20:121
28458992823,3cyclictest25-21ksoftirqd/120:59:581
28458992823,3cyclictest25-21ksoftirqd/120:59:581
28458992821,5cyclictest25-21ksoftirqd/100:33:381
2845899280,1cyclictest0-21swapper/120:21:451
2845899280,16cyclictest0-21swapper/121:03:091
28458992722,3cyclictest25-21ksoftirqd/119:55:081
28458992722,3cyclictest25-21ksoftirqd/119:31:081
28458992721,4cyclictest25-21ksoftirqd/120:30:091
28459992620,4cyclictest33-21ksoftirqd/219:28:532
2845999261,23cyclictest4917-21kworker/2:021:55:052
28458992520,3cyclictest25-21ksoftirqd/123:07:391
28458992520,3cyclictest25-21ksoftirqd/122:14:551
28458992519,4cyclictest25-21ksoftirqd/121:43:551
28458992419,3cyclictest25-21ksoftirqd/121:36:171
28458992419,3cyclictest25-21ksoftirqd/100:36:291
28458992217,3cyclictest25-21ksoftirqd/123:12:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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