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2025-07-05 - 21:34
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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 rackdslot4.osadl.org (updated Sat Jul 05, 2025 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135702204170,22sleep20-21swapper/207:05:102
134791204170,23phc2sys0-21swapper/307:05:423
156802203170,22sleep10-21swapper/107:08:391
155392201167,22sleep00-21swapper/007:06:490
39482660,1sleep00-21swapper/010:00:150
63522650,3sleep00-21swapper/011:10:150
16079996422,4cyclictest33-21ksoftirqd/207:35:142
134991640,1ptp4l31489-21diskstats12:00:173
16079996228,9cyclictest33-21ksoftirqd/210:50:012
16079996126,5cyclictest33-21ksoftirqd/212:35:172
16079996121,4cyclictest33-21ksoftirqd/211:15:202
134991610,1ptp4l401ktimersoftd/308:59:193
134991610,1ptp4l401ktimersoftd/308:59:193
16079996025,9cyclictest33-21ksoftirqd/211:09:592
16079996022,5cyclictest33-21ksoftirqd/208:50:222
16079996019,5cyclictest33-21ksoftirqd/209:20:282
16079996018,8cyclictest33-21ksoftirqd/209:30:172
16079995928,10cyclictest33-21ksoftirqd/209:15:002
16079995927,4cyclictest33-21ksoftirqd/211:45:172
16079995926,9cyclictest33-21ksoftirqd/212:05:142
16079995926,8cyclictest33-21ksoftirqd/212:25:002
16079995828,9cyclictest33-21ksoftirqd/212:30:202
16079995827,9cyclictest33-21ksoftirqd/208:05:252
16079995827,4cyclictest33-21ksoftirqd/210:25:172
16079995826,4cyclictest33-21ksoftirqd/211:59:592
16079995825,8cyclictest33-21ksoftirqd/208:45:232
16079995821,4cyclictest33-21ksoftirqd/208:25:292
16079995820,3cyclictest33-21ksoftirqd/210:00:252
16079995819,4cyclictest33-21ksoftirqd/209:15:182
1607999575,9cyclictest33-21ksoftirqd/208:00:002
16079995725,7cyclictest33-21ksoftirqd/208:30:202
16079995723,9cyclictest33-21ksoftirqd/207:30:012
16079995723,9cyclictest33-21ksoftirqd/207:20:002
16079995722,4cyclictest33-21ksoftirqd/209:05:012
16079995627,9cyclictest33-21ksoftirqd/212:25:152
16079995625,9cyclictest33-21ksoftirqd/209:25:162
16079995624,8cyclictest33-21ksoftirqd/209:00:012
16079995624,8cyclictest33-21ksoftirqd/209:00:012
16079995619,5cyclictest33-21ksoftirqd/211:50:152
16079995617,9cyclictest33-21ksoftirqd/209:10:002
16079995616,10cyclictest33-21ksoftirqd/210:50:202
16079995525,8cyclictest33-21ksoftirqd/210:10:142
16079995523,9cyclictest33-21ksoftirqd/210:05:262
16079995521,9cyclictest33-21ksoftirqd/211:00:172
16079995520,4cyclictest33-21ksoftirqd/207:45:182
1607999542,6cyclictest33-21ksoftirqd/211:25:212
16079995425,9cyclictest33-21ksoftirqd/207:50:212
16079995424,7cyclictest33-21ksoftirqd/209:35:182
16079995421,9cyclictest33-21ksoftirqd/209:50:192
16079995420,4cyclictest33-21ksoftirqd/211:40:202
16079995420,4cyclictest33-21ksoftirqd/210:15:212
16079995417,7cyclictest33-21ksoftirqd/210:55:222
1607999532,4cyclictest33-21ksoftirqd/212:19:592
16079995322,8cyclictest33-21ksoftirqd/208:20:152
16079995317,9cyclictest33-21ksoftirqd/207:40:022
16080995223,3cyclictest41-21ksoftirqd/308:30:013
16079995224,8cyclictest33-21ksoftirqd/210:45:012
16079995222,7cyclictest33-21ksoftirqd/207:31:362
102662520,2sleep10-21swapper/112:20:261
304112510,5sleep21607999cyclictest08:40:302
1607999516,7cyclictest33-21ksoftirqd/208:40:002
1607999512,7cyclictest33-21ksoftirqd/210:30:142
16079995120,9cyclictest33-21ksoftirqd/212:00:252
16079995118,8cyclictest33-21ksoftirqd/209:55:172
16079995116,3cyclictest33-21ksoftirqd/211:35:232
134991510,0ptp4l401ktimersoftd/308:09:583
16080995022,3cyclictest41-21ksoftirqd/312:25:263
16080995019,3cyclictest41-21ksoftirqd/310:10:203
1607999506,2cyclictest33-21ksoftirqd/208:03:062
1607999504,6cyclictest33-21ksoftirqd/207:10:262
16080994922,3cyclictest41-21ksoftirqd/308:10:143
1607999497,8cyclictest33-21ksoftirqd/211:20:242
1607999496,7cyclictest33-21ksoftirqd/209:50:002
1607999495,5cyclictest33-21ksoftirqd/208:15:182
1607999494,6cyclictest18462-21kworker/2:110:35:202
1607999492,6cyclictest33-21ksoftirqd/211:10:172
134991490,3ptp4l41-21ksoftirqd/307:20:053
1608099483,2cyclictest121rcu_preempt11:25:223
1607999482,5cyclictest33-21ksoftirqd/211:30:262
16079994815,9cyclictest33-21ksoftirqd/207:20:222
1608099472,3cyclictest121rcu_preempt10:39:593
16080994718,3cyclictest41-21ksoftirqd/312:15:223
16080994715,4cyclictest41-21ksoftirqd/307:40:003
16080994715,3cyclictest41-21ksoftirqd/308:20:013
1608099470,4cyclictest3532-21grep10:00:003
1607999475,3cyclictest33-21ksoftirqd/209:40:212
1607999471,4cyclictest4564-21irqrtprio12:10:182
16079994713,8cyclictest33-21ksoftirqd/208:15:012
16080994632,4cyclictest41-21ksoftirqd/309:10:283
16080994618,3cyclictest41-21ksoftirqd/309:40:163
16080994610,9cyclictest41-21ksoftirqd/310:30:123
1607999463,8cyclictest33-21ksoftirqd/210:20:202
1608099452,7cyclictest41-21ksoftirqd/311:10:533
16080994416,4cyclictest41-21ksoftirqd/310:50:163
16080994415,4cyclictest41-21ksoftirqd/307:45:003
16080994411,10cyclictest41-21ksoftirqd/309:50:003
1608099438,5cyclictest41-21ksoftirqd/308:44:593
16080994313,4cyclictest41-21ksoftirqd/310:15:273
16080994313,3cyclictest41-21ksoftirqd/310:55:193
16080994312,4cyclictest41-21ksoftirqd/308:20:233
1608099426,7cyclictest41-21ksoftirqd/312:05:013
16080994231,9cyclictest41-21ksoftirqd/309:34:593
16080994225,7cyclictest41-21ksoftirqd/309:15:243
16080994224,4cyclictest41-21ksoftirqd/311:35:213
1608099421,4cyclictest121rcu_preempt08:50:183
16080994214,4cyclictest41-21ksoftirqd/307:50:263
16080994214,3cyclictest41-21ksoftirqd/309:20:203
16080994137,2cyclictest41-21ksoftirqd/310:25:003
16080994130,9cyclictest41-21ksoftirqd/308:45:253
16080994114,7cyclictest41-21ksoftirqd/307:55:203
16080994112,4cyclictest41-21ksoftirqd/312:35:293
16080994111,4cyclictest41-21ksoftirqd/311:15:183
134991410,0ptp4l401ktimersoftd/309:35:183
1608099409,4cyclictest41-21ksoftirqd/309:30:003
1608099409,4cyclictest41-21ksoftirqd/308:35:003
1608099405,4cyclictest41-21ksoftirqd/311:40:213
16080994028,4cyclictest41-21ksoftirqd/311:45:303
16080994026,3cyclictest41-21ksoftirqd/308:40:003
1608099401,5cyclictest41-21ksoftirqd/307:30:133
16080994010,4cyclictest41-21ksoftirqd/310:25:273
16080994010,14cyclictest41-21ksoftirqd/308:00:203
16080993935,2cyclictest41-21ksoftirqd/307:15:003
1608099393,3cyclictest41-21ksoftirqd/311:00:163
16080993913,3cyclictest41-21ksoftirqd/309:00:153
1608099390,2cyclictest121rcu_preempt07:25:193
16078993933,4cyclictest25-21ksoftirqd/109:51:581
1608099389,4cyclictest41-21ksoftirqd/312:30:173
1608099384,3cyclictest41-21ksoftirqd/311:05:183
16080993832,4cyclictest41-21ksoftirqd/309:06:593
16080993812,4cyclictest41-21ksoftirqd/310:45:183
16080993811,3cyclictest41-21ksoftirqd/311:30:273
16080993810,4cyclictest41-21ksoftirqd/310:00:183
16078993832,4cyclictest25-21ksoftirqd/107:50:101
1608099375,7cyclictest41-21ksoftirqd/309:50:143
1608099373,9cyclictest41-21ksoftirqd/312:20:163
16080993725,3cyclictest41-21ksoftirqd/310:40:253
1608099371,4cyclictest41-21ksoftirqd/307:45:143
16080993710,4cyclictest41-21ksoftirqd/311:55:253
16078993732,3cyclictest25-21ksoftirqd/109:44:591
16080993630,4cyclictest41-21ksoftirqd/307:19:273
16080993629,4cyclictest41-21ksoftirqd/312:10:133
16080993624,3cyclictest41-21ksoftirqd/311:20:253
16078993631,3cyclictest25-21ksoftirqd/109:15:121
16078993630,4cyclictest25-21ksoftirqd/112:13:481
16078993630,4cyclictest25-21ksoftirqd/111:35:521
16078993630,4cyclictest25-21ksoftirqd/110:11:221
16078993630,4cyclictest25-21ksoftirqd/108:05:591
16077993630,4cyclictest9-21ksoftirqd/008:09:310
16077993629,5cyclictest9-21ksoftirqd/012:22:480
16080993531,2cyclictest41-21ksoftirqd/310:05:163
16080993529,3cyclictest41-21ksoftirqd/311:50:223
16078993531,3cyclictest25-21ksoftirqd/108:25:001
16078993531,3cyclictest25-21ksoftirqd/107:20:001
16078993529,4cyclictest25-21ksoftirqd/112:05:211
16078993529,4cyclictest25-21ksoftirqd/110:43:121
16078993529,4cyclictest25-21ksoftirqd/108:48:111
16078993529,4cyclictest25-21ksoftirqd/108:44:011
16078993528,5cyclictest25-21ksoftirqd/110:34:341
16078993528,5cyclictest25-21ksoftirqd/110:04:181
16077993529,4cyclictest9-21ksoftirqd/010:11:260
16077993529,4cyclictest9-21ksoftirqd/010:08:330
16077993529,4cyclictest9-21ksoftirqd/009:07:430
16078993428,4cyclictest25-21ksoftirqd/112:36:051
16078993428,4cyclictest25-21ksoftirqd/111:48:201
16078993428,4cyclictest25-21ksoftirqd/111:43:021
16078993428,4cyclictest25-21ksoftirqd/110:37:021
16077993429,3cyclictest9-21ksoftirqd/011:19:200
16077993428,4cyclictest9-21ksoftirqd/012:34:570
16077993428,4cyclictest9-21ksoftirqd/012:03:470
16077993428,4cyclictest9-21ksoftirqd/009:36:000
16078993329,3cyclictest25-21ksoftirqd/110:49:211
16078993328,3cyclictest25-21ksoftirqd/112:00:001
16078993328,3cyclictest25-21ksoftirqd/108:50:141
16078993327,4cyclictest25-21ksoftirqd/112:32:441
16078993327,4cyclictest25-21ksoftirqd/111:03:391
16078993327,4cyclictest25-21ksoftirqd/107:46:131
16077993328,3cyclictest9-21ksoftirqd/011:36:120
16077993328,3cyclictest9-21ksoftirqd/009:44:590
16077993328,3cyclictest9-21ksoftirqd/009:05:000
16077993327,4cyclictest9-21ksoftirqd/012:26:470
16077993327,4cyclictest9-21ksoftirqd/012:16:430
16077993327,4cyclictest9-21ksoftirqd/011:47:350
16077993327,4cyclictest9-21ksoftirqd/011:44:260
16077993327,4cyclictest9-21ksoftirqd/011:34:310
16077993327,4cyclictest9-21ksoftirqd/010:42:440
16077993327,4cyclictest9-21ksoftirqd/007:53:420
16077993327,4cyclictest9-21ksoftirqd/007:46:200
16077993327,3cyclictest9-21ksoftirqd/008:11:200
16077993326,5cyclictest9-21ksoftirqd/007:38:260
16077993326,4cyclictest9-21ksoftirqd/008:39:120
16078993227,3cyclictest25-21ksoftirqd/110:21:151
16078993227,3cyclictest25-21ksoftirqd/109:00:181
16078993227,3cyclictest25-21ksoftirqd/108:10:431
16078993227,3cyclictest25-21ksoftirqd/107:43:191
16078993227,3cyclictest25-21ksoftirqd/107:30:011
16078993227,3cyclictest25-21ksoftirqd/107:12:311
16078993226,4cyclictest25-21ksoftirqd/111:33:271
16078993226,4cyclictest25-21ksoftirqd/110:59:101
16078993226,4cyclictest25-21ksoftirqd/110:18:461
16078993226,4cyclictest25-21ksoftirqd/109:38:531
16077993227,3cyclictest9-21ksoftirqd/011:25:120
16077993227,3cyclictest9-21ksoftirqd/009:50:290
16077993227,3cyclictest9-21ksoftirqd/008:16:530
16077993226,4cyclictest9-21ksoftirqd/010:53:510
16077993226,4cyclictest9-21ksoftirqd/010:31:570
16077993226,4cyclictest9-21ksoftirqd/007:21:170
16077993225,4cyclictest9-21ksoftirqd/012:35:050
16078993127,3cyclictest25-21ksoftirqd/112:05:001
16078993126,3cyclictest25-21ksoftirqd/112:20:001
16078993126,3cyclictest25-21ksoftirqd/111:20:001
16078993126,3cyclictest25-21ksoftirqd/109:55:251
16078993126,3cyclictest25-21ksoftirqd/109:06:051
16078993126,3cyclictest25-21ksoftirqd/107:58:051
16078993125,4cyclictest25-21ksoftirqd/111:12:221
16078993125,4cyclictest25-21ksoftirqd/107:24:431
16078993125,3cyclictest25-21ksoftirqd/109:10:121
16077993126,3cyclictest9-21ksoftirqd/009:45:200
16077993126,3cyclictest9-21ksoftirqd/009:26:260
16077993126,3cyclictest9-21ksoftirqd/008:55:370
16077993126,3cyclictest9-21ksoftirqd/008:55:370
16077993126,3cyclictest9-21ksoftirqd/008:55:000
16077993126,3cyclictest9-21ksoftirqd/008:45:000
16077993126,3cyclictest9-21ksoftirqd/007:26:430
16077993125,4cyclictest9-21ksoftirqd/012:10:490
16077993125,4cyclictest9-21ksoftirqd/012:06:360
16077993125,4cyclictest9-21ksoftirqd/009:18:590
16077993125,4cyclictest9-21ksoftirqd/008:47:100
16077993125,4cyclictest9-21ksoftirqd/008:27:240
16077993125,4cyclictest9-21ksoftirqd/008:01:330
16077993125,3cyclictest9-21ksoftirqd/011:00:000
16077993124,4cyclictest28384-21sh10:50:010
16078993025,3cyclictest25-21ksoftirqd/109:30:151
16078993025,3cyclictest25-21ksoftirqd/108:30:061
16078993025,3cyclictest25-21ksoftirqd/107:37:311
16078993024,4cyclictest25-21ksoftirqd/111:54:261
16078993024,4cyclictest25-21ksoftirqd/110:09:231
16078993024,4cyclictest25-21ksoftirqd/109:22:501
16077993025,3cyclictest9-21ksoftirqd/010:15:140
16077993025,3cyclictest9-21ksoftirqd/009:22:120
16077993025,3cyclictest9-21ksoftirqd/008:24:480
16077993025,3cyclictest9-21ksoftirqd/007:32:400
16077993024,4cyclictest9-21ksoftirqd/011:20:530
16078992923,4cyclictest25-21ksoftirqd/110:27:371
16077992923,4cyclictest9-21ksoftirqd/011:09:240
16077992923,4cyclictest9-21ksoftirqd/011:03:380
16077992923,4cyclictest9-21ksoftirqd/010:22:220
16078992823,3cyclictest25-21ksoftirqd/112:25:251
16078992823,3cyclictest25-21ksoftirqd/109:48:491
16078992823,3cyclictest25-21ksoftirqd/108:56:221
16078992823,3cyclictest25-21ksoftirqd/108:56:221
16078992823,3cyclictest25-21ksoftirqd/108:40:001
16078992823,3cyclictest25-21ksoftirqd/107:32:541
16078992822,4cyclictest25-21ksoftirqd/108:15:121
16078992822,4cyclictest25-21ksoftirqd/108:03:141
16078992822,3cyclictest30828-21cron10:55:011
16078992822,3cyclictest25-21ksoftirqd/109:30:001
16077992824,3cyclictest9-21ksoftirqd/007:14:210
16077992823,3cyclictest9-21ksoftirqd/008:31:460
16077992823,3cyclictest9-21ksoftirqd/007:55:430
16077992822,4cyclictest9-21ksoftirqd/011:53:480
16077992822,3cyclictest9-21ksoftirqd/007:43:130
16078992722,3cyclictest25-21ksoftirqd/111:25:151
16078992722,3cyclictest25-21ksoftirqd/108:25:211
16077992722,3cyclictest9-21ksoftirqd/010:25:390
16077992722,3cyclictest9-21ksoftirqd/007:15:200
16077992721,4cyclictest9-21ksoftirqd/009:32:230
16077992621,3cyclictest9-21ksoftirqd/010:37:020
16078992520,3cyclictest25-21ksoftirqd/111:05:171
16077992520,3cyclictest9-21ksoftirqd/011:59:170
16078992418,3cyclictest25-21ksoftirqd/111:25:011
16077992318,3cyclictest9-21ksoftirqd/009:56:020
16077992318,3cyclictest9-21ksoftirqd/009:10:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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