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2026-06-18 - 07:07
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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 rackdslot3.osadl.org (updated Thu Jun 18, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174232206173,22sleep30-21swapper/319:07:333
174932205172,22sleep10-21swapper/119:08:281
173382205172,22sleep00-21swapper/019:06:260
173302203170,22sleep20-21swapper/219:06:202
2935421650,5sleep21790499cyclictest20:40:192
2935421650,5sleep21790499cyclictest20:40:192
46942630,3sleep10-21swapper/123:10:251
139391610,1ptp4l401ktimersoftd/300:00:223
100152560,4sleep341-21ksoftirqd/320:00:173
312392510,4sleep031238-21sed23:00:130
1790299513,44cyclictest23529-21turbostat22:45:020
221892500,2sleep00-21swapper/021:35:000
1790299487,10cyclictest9-21ksoftirqd/019:20:260
17902994816,6cyclictest9-21ksoftirqd/023:25:210
17902994816,4cyclictest9-21ksoftirqd/023:05:210
139391480,1ptp4l401ktimersoftd/300:32:343
1790299473,3cyclictest121rcu_preempt22:25:000
17902994717,7cyclictest9-21ksoftirqd/023:45:000
1790599463,15cyclictest121rcu_preempt20:35:203
17902994641,2cyclictest5500-21wc21:00:000
17902994610,4cyclictest9-21ksoftirqd/023:30:250
17902994511,3cyclictest9-21ksoftirqd/021:05:220
17902994510,4cyclictest9-21ksoftirqd/000:25:170
17902994413,4cyclictest9-21ksoftirqd/000:10:260
139391440,0ptp4l401ktimersoftd/322:08:143
17904994336,4cyclictest18641-21dump-pmu-power20:20:012
1790299439,4cyclictest9-21ksoftirqd/020:40:270
1790299439,4cyclictest9-21ksoftirqd/020:40:270
1790299436,4cyclictest9-21ksoftirqd/019:45:190
17902994313,4cyclictest9-21ksoftirqd/019:30:000
139391430,0ptp4l401ktimersoftd/323:09:363
139391430,0ptp4l401ktimersoftd/320:13:223
139391430,0ptp4l401ktimersoftd/320:13:213
17903994236,3cyclictest15022-21sh21:20:001
1790299423,2cyclictest57898rtkit-daemon19:19:430
17902994214,6cyclictest9-21ksoftirqd/000:00:270
139391420,0ptp4l401ktimersoftd/322:33:053
139391420,0ptp4l401ktimersoftd/321:33:173
139391420,0ptp4l401ktimersoftd/321:17:563
139391420,0ptp4l401ktimersoftd/320:15:283
17904994135,3cyclictest33-21ksoftirqd/219:50:012
1790299419,4cyclictest9-21ksoftirqd/021:50:480
1790299419,3cyclictest9-21ksoftirqd/000:30:120
1790299418,4cyclictest9-21ksoftirqd/000:20:270
1790299416,6cyclictest9-21ksoftirqd/020:35:180
1790299415,4cyclictest9-21ksoftirqd/022:25:000
1790299413,3cyclictest121rcu_preempt00:10:000
1790299413,3cyclictest121rcu_preempt00:10:000
17902994110,6cyclictest9-21ksoftirqd/019:50:510
17902994110,4cyclictest9-21ksoftirqd/019:43:560
17902994110,4cyclictest9-21ksoftirqd/019:43:560
139391410,0ptp4l401ktimersoftd/320:53:083
139391410,0ptp4l401ktimersoftd/300:35:273
17905994030,9cyclictest41-21ksoftirqd/321:20:253
1790299402,6cyclictest9-21ksoftirqd/022:35:020
1790299401,5cyclictest9-21ksoftirqd/021:15:220
1790299401,4cyclictest9-21ksoftirqd/023:20:240
17902994013,3cyclictest9-21ksoftirqd/022:45:220
17902994012,7cyclictest9-21ksoftirqd/021:40:160
17902994010,4cyclictest9-21ksoftirqd/023:13:410
17905993928,9cyclictest41-21ksoftirqd/321:05:163
17904993934,3cyclictest33-21ksoftirqd/222:00:002
1790299399,4cyclictest9-21ksoftirqd/023:35:190
17902993934,3cyclictest9-21ksoftirqd/022:00:010
17902993932,3cyclictest9-21ksoftirqd/000:15:190
1790299391,5cyclictest9-21ksoftirqd/023:45:230
17902993911,4cyclictest9-21ksoftirqd/020:30:150
17905993832,3cyclictest41-21ksoftirqd/323:50:013
17904993833,3cyclictest1618-21sendmail-mta20:34:182
17904993832,3cyclictest33-21ksoftirqd/220:45:172
17904993832,3cyclictest33-21ksoftirqd/220:00:002
17904993831,5cyclictest33-21ksoftirqd/222:23:292
17902993834,2cyclictest9-21ksoftirqd/022:35:000
17902993833,3cyclictest9-21ksoftirqd/019:40:000
1790299382,3cyclictest121rcu_preempt20:00:250
1790299382,2cyclictest121rcu_preempt23:55:000
17905993733,3cyclictest41-21ksoftirqd/322:50:003
17905993733,2cyclictest41-21ksoftirqd/321:55:003
17904993731,4cyclictest33-21ksoftirqd/220:06:212
17904993731,3cyclictest33-21ksoftirqd/222:10:002
17904993730,4cyclictest33-21ksoftirqd/221:37:032
17903993731,4cyclictest25-21ksoftirqd/120:10:501
17903993731,4cyclictest25-21ksoftirqd/120:10:501
1790299379,3cyclictest9-21ksoftirqd/021:27:100
17902993732,2cyclictest27780-21interrupts21:45:160
17902993731,3cyclictest9-21ksoftirqd/022:50:240
17902993731,3cyclictest9-21ksoftirqd/020:50:000
17902993730,3cyclictest9-21ksoftirqd/020:20:280
17902993725,2cyclictest9-21ksoftirqd/022:10:220
17902993723,3cyclictest9-21ksoftirqd/020:10:000
1790299371,4cyclictest9-21ksoftirqd/023:16:170
1790299370,4cyclictest9-21ksoftirqd/019:10:130
1790299370,4cyclictest9-21ksoftirqd/019:10:130
1790599363,3cyclictest41-21ksoftirqd/321:00:043
17905993631,3cyclictest41-21ksoftirqd/323:30:123
17905993631,3cyclictest41-21ksoftirqd/320:34:593
17905993631,3cyclictest41-21ksoftirqd/300:15:133
17905993630,3cyclictest41-21ksoftirqd/323:40:583
17905993629,5cyclictest41-21ksoftirqd/319:25:113
17905993625,9cyclictest41-21ksoftirqd/323:20:273
1790499364,3cyclictest6847-21phc2sys23:15:222
17904993632,3cyclictest33-21ksoftirqd/200:15:192
17904993632,2cyclictest33-21ksoftirqd/222:25:002
17904993630,4cyclictest33-21ksoftirqd/223:01:482
17904993630,4cyclictest33-21ksoftirqd/222:15:002
17903993632,3cyclictest25-21ksoftirqd/122:00:001
17903993631,3cyclictest25-21ksoftirqd/120:25:181
17903993630,4cyclictest25-21ksoftirqd/120:45:591
17903993630,4cyclictest25-21ksoftirqd/120:00:591
17903993629,4cyclictest25-21ksoftirqd/122:11:361
17903993629,4cyclictest25-21ksoftirqd/120:06:171
17902993632,2cyclictest9-21ksoftirqd/020:55:000
17902993631,3cyclictest9-21ksoftirqd/023:55:250
17902993631,2cyclictest9-21ksoftirqd/022:15:260
17902993630,3cyclictest9-21ksoftirqd/023:00:000
17902993630,3cyclictest9-21ksoftirqd/021:40:000
17902993629,3cyclictest9-21ksoftirqd/020:20:010
17902993619,5cyclictest9-21ksoftirqd/020:30:000
17905993531,3cyclictest41-21ksoftirqd/320:25:263
17905993530,3cyclictest41-21ksoftirqd/323:16:133
17905993530,3cyclictest41-21ksoftirqd/320:40:143
17905993530,3cyclictest41-21ksoftirqd/320:40:143
17905993529,4cyclictest41-21ksoftirqd/300:25:203
17905993529,3cyclictest41-21ksoftirqd/319:50:003
17905993528,4cyclictest41-21ksoftirqd/322:45:013
17905993522,10cyclictest41-21ksoftirqd/322:00:253
1790599351,3cyclictest121rcu_preempt00:06:083
1790599351,3cyclictest121rcu_preempt00:06:083
17904993531,3cyclictest33-21ksoftirqd/200:25:012
17904993531,2cyclictest33-21ksoftirqd/220:35:122
17904993530,3cyclictest33-21ksoftirqd/221:03:122
17904993530,3cyclictest33-21ksoftirqd/219:10:192
17904993530,3cyclictest33-21ksoftirqd/219:10:192
17904993529,4cyclictest33-21ksoftirqd/223:25:032
17904993529,4cyclictest33-21ksoftirqd/221:49:352
17904993529,4cyclictest33-21ksoftirqd/221:33:542
17904993529,4cyclictest33-21ksoftirqd/221:20:432
17904993529,4cyclictest33-21ksoftirqd/221:10:352
17904993529,4cyclictest33-21ksoftirqd/221:10:352
17904993529,4cyclictest33-21ksoftirqd/220:12:422
17904993529,4cyclictest33-21ksoftirqd/220:12:422
17904993529,4cyclictest33-21ksoftirqd/219:29:392
17904993529,3cyclictest33-21ksoftirqd/223:30:192
17903993529,4cyclictest25-21ksoftirqd/121:44:251
17903993529,4cyclictest25-21ksoftirqd/121:36:541
17903993529,4cyclictest25-21ksoftirqd/119:21:431
1790399351,3cyclictest121rcu_preempt21:50:211
1790299358,2cyclictest9-21ksoftirqd/021:20:250
17902993531,2cyclictest9-21ksoftirqd/000:35:240
17902993530,2cyclictest9-21ksoftirqd/019:25:170
17902993528,4cyclictest9-21ksoftirqd/019:59:260
17905993430,3cyclictest41-21ksoftirqd/319:11:153
17905993430,3cyclictest41-21ksoftirqd/319:11:153
17905993430,2cyclictest41-21ksoftirqd/319:30:183
17905993429,3cyclictest41-21ksoftirqd/322:40:013
17905993429,3cyclictest41-21ksoftirqd/322:25:173
17905993429,3cyclictest41-21ksoftirqd/320:25:003
17905993429,2cyclictest41-21ksoftirqd/319:35:143
17905993428,4cyclictest41-21ksoftirqd/322:10:503
17905993428,4cyclictest41-21ksoftirqd/321:13:343
17905993428,4cyclictest41-21ksoftirqd/321:13:333
17905993428,4cyclictest41-21ksoftirqd/319:21:533
17904993429,3cyclictest33-21ksoftirqd/223:55:002
17904993429,3cyclictest33-21ksoftirqd/219:20:192
17904993429,3cyclictest33-21ksoftirqd/200:30:172
17904993429,3cyclictest33-21ksoftirqd/200:05:212
17904993429,3cyclictest33-21ksoftirqd/200:05:212
17904993428,4cyclictest33-21ksoftirqd/222:39:452
17904993428,4cyclictest33-21ksoftirqd/221:42:132
17904993428,4cyclictest33-21ksoftirqd/220:51:232
17904993428,3cyclictest33-21ksoftirqd/223:10:002
17904993419,4cyclictest33-21ksoftirqd/219:20:012
17903993428,4cyclictest25-21ksoftirqd/121:21:421
17903993428,4cyclictest25-21ksoftirqd/119:30:421
1790299344,2cyclictest121rcu_preempt21:11:070
1790299344,2cyclictest121rcu_preempt21:11:070
17902993429,3cyclictest9-21ksoftirqd/022:05:240
17902993429,2cyclictest9-21ksoftirqd/022:00:150
17902993427,4cyclictest9-21ksoftirqd/021:00:270
1790599334,3cyclictest41-21ksoftirqd/319:59:313
1790599334,3cyclictest121rcu_preempt22:55:263
17905993329,2cyclictest41-21ksoftirqd/322:20:013
17905993329,2cyclictest41-21ksoftirqd/321:30:013
17905993329,2cyclictest41-21ksoftirqd/319:50:193
17905993328,3cyclictest41-21ksoftirqd/323:36:163
17905993328,3cyclictest41-21ksoftirqd/323:04:413
17905993328,3cyclictest41-21ksoftirqd/322:50:133
17905993328,3cyclictest41-21ksoftirqd/322:21:593
17905993328,3cyclictest41-21ksoftirqd/320:45:183
17905993327,4cyclictest41-21ksoftirqd/321:56:383
17905993327,4cyclictest41-21ksoftirqd/321:48:473
1790599330,2cyclictest121rcu_preempt20:10:013
17904993329,3cyclictest33-21ksoftirqd/200:00:262
17904993328,3cyclictest33-21ksoftirqd/222:35:002
17904993328,3cyclictest33-21ksoftirqd/222:04:002
17904993328,3cyclictest33-21ksoftirqd/221:54:462
17904993328,3cyclictest33-21ksoftirqd/219:34:592
17904993327,4cyclictest33-21ksoftirqd/223:58:042
17904993327,4cyclictest33-21ksoftirqd/222:41:112
17903993328,3cyclictest25-21ksoftirqd/119:42:131
17903993328,3cyclictest25-21ksoftirqd/119:42:121
17903993327,4cyclictest25-21ksoftirqd/123:50:571
17903993327,4cyclictest25-21ksoftirqd/122:58:461
17903993327,4cyclictest25-21ksoftirqd/120:19:021
17903993327,4cyclictest25-21ksoftirqd/100:38:271
17903993327,4cyclictest25-21ksoftirqd/100:17:211
17902993328,2cyclictest9-21ksoftirqd/020:10:250
17902993328,2cyclictest9-21ksoftirqd/020:10:250
1394913328,2phc2sys401ktimersoftd/300:00:003
57898320,9rtkit-daemon1453-21gpm21:30:461
1790599326,2cyclictest41-21ksoftirqd/323:25:153
17905993228,2cyclictest41-21ksoftirqd/323:55:003
17905993227,3cyclictest41-21ksoftirqd/320:55:233
17905993227,3cyclictest41-21ksoftirqd/300:23:053
17905993226,4cyclictest41-21ksoftirqd/319:17:233
17904993229,2cyclictest33-21ksoftirqd/220:25:012
17904993227,3cyclictest33-21ksoftirqd/223:40:372
17904993227,3cyclictest33-21ksoftirqd/223:40:012
17904993227,3cyclictest33-21ksoftirqd/222:55:182
17904993227,3cyclictest33-21ksoftirqd/222:51:042
17904993227,3cyclictest33-21ksoftirqd/220:30:002
17904993227,3cyclictest33-21ksoftirqd/219:54:062
17904993227,3cyclictest33-21ksoftirqd/200:26:112
17904993225,5cyclictest33-21ksoftirqd/223:12:272
17904993219,10cyclictest33-21ksoftirqd/219:35:132
17903993227,3cyclictest25-21ksoftirqd/123:30:121
17903993227,3cyclictest25-21ksoftirqd/122:44:171
17903993227,3cyclictest25-21ksoftirqd/119:58:081
17903993226,4cyclictest25-21ksoftirqd/122:53:561
17905993127,2cyclictest41-21ksoftirqd/323:15:013
17905993126,3cyclictest41-21ksoftirqd/319:40:463
17905993126,3cyclictest41-21ksoftirqd/319:40:453
17905993125,4cyclictest41-21ksoftirqd/321:40:343
17904993126,3cyclictest33-21ksoftirqd/200:40:002
17904993125,4cyclictest33-21ksoftirqd/221:27:332
17904993119,9cyclictest33-21ksoftirqd/220:55:182
17903993127,3cyclictest25-21ksoftirqd/121:00:121
17903993126,3cyclictest25-21ksoftirqd/123:22:081
17903993126,3cyclictest25-21ksoftirqd/121:45:091
17903993125,4cyclictest25-21ksoftirqd/123:44:431
17903993125,4cyclictest25-21ksoftirqd/122:46:061
17903993125,4cyclictest25-21ksoftirqd/122:19:581
17903993125,4cyclictest25-21ksoftirqd/120:39:491
17903993125,4cyclictest25-21ksoftirqd/119:48:131
17903993125,4cyclictest25-21ksoftirqd/100:21:461
17903993125,4cyclictest25-21ksoftirqd/100:03:291
17903993124,4cyclictest25-21ksoftirqd/121:07:101
17905993018,10cyclictest41-21ksoftirqd/300:10:243
17904993027,2cyclictest33-21ksoftirqd/222:20:002
17904993025,3cyclictest33-21ksoftirqd/223:20:192
17904993025,3cyclictest33-21ksoftirqd/200:10:182
17904993024,4cyclictest33-21ksoftirqd/221:05:542
17904993024,4cyclictest33-21ksoftirqd/219:40:022
17904993024,4cyclictest33-21ksoftirqd/219:40:012
17904993022,2cyclictest33-21ksoftirqd/222:50:002
17903993026,3cyclictest25-21ksoftirqd/100:31:451
17903993026,2cyclictest25-21ksoftirqd/121:10:181
17903993026,2cyclictest25-21ksoftirqd/121:10:171
17903993025,3cyclictest25-21ksoftirqd/120:56:081
17903993025,3cyclictest25-21ksoftirqd/120:50:071
17903993025,3cyclictest25-21ksoftirqd/120:41:381
17903993025,3cyclictest25-21ksoftirqd/120:41:381
17903993025,3cyclictest25-21ksoftirqd/119:16:001
17903993024,4cyclictest25-21ksoftirqd/123:59:271
17903993024,4cyclictest25-21ksoftirqd/123:37:251
17903993024,4cyclictest25-21ksoftirqd/122:01:291
17903993024,4cyclictest25-21ksoftirqd/119:26:561
17904992924,3cyclictest33-21ksoftirqd/220:04:182
17903992924,3cyclictest25-21ksoftirqd/122:40:001
17903992924,3cyclictest25-21ksoftirqd/122:05:121
17903992924,3cyclictest25-21ksoftirqd/120:25:001
17903992924,3cyclictest25-21ksoftirqd/119:10:121
17903992924,3cyclictest25-21ksoftirqd/119:10:121
17903992923,4cyclictest25-21ksoftirqd/123:18:031
17903992923,4cyclictest25-21ksoftirqd/123:05:081
17905992824,2cyclictest41-21ksoftirqd/321:35:153
17904992822,4cyclictest33-21ksoftirqd/223:47:052
17903992824,3cyclictest25-21ksoftirqd/121:25:121
17903992823,3cyclictest25-21ksoftirqd/123:02:461
17903992823,3cyclictest25-21ksoftirqd/119:35:041
17903992822,4cyclictest25-21ksoftirqd/120:30:391
17903992818,8cyclictest25-21ksoftirqd/119:55:001
17904992722,3cyclictest33-21ksoftirqd/221:18:202
17903992722,3cyclictest25-21ksoftirqd/122:30:101
17903992722,3cyclictest25-21ksoftirqd/100:09:101
17903992722,3cyclictest25-21ksoftirqd/100:09:101
17903992622,3cyclictest25-21ksoftirqd/100:10:181
17903992621,3cyclictest25-21ksoftirqd/123:25:491
17903992621,3cyclictest25-21ksoftirqd/100:27:511
17903992419,3cyclictest25-21ksoftirqd/122:28:281
17903992217,3cyclictest25-21ksoftirqd/123:45:551
17903992116,3cyclictest25-21ksoftirqd/122:20:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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