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2026-09-13 - 08:15
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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 rackdslot3.osadl.org (updated Sun Sep 13, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491234168,23phc2sys0-21swapper/319:08:473
327252205172,22sleep20-21swapper/219:06:352
327192203170,22sleep10-21swapper/119:06:301
3232203170,22sleep00-21swapper/019:07:220
1018996332,7cyclictest25-21ksoftirqd/121:50:001
1018996125,10cyclictest25-21ksoftirqd/120:05:021
1018995830,7cyclictest25-21ksoftirqd/120:45:011
1018995830,4cyclictest25-21ksoftirqd/119:40:001
1018995826,3cyclictest25-21ksoftirqd/122:15:161
1018995526,4cyclictest25-21ksoftirqd/120:15:171
1018995526,4cyclictest25-21ksoftirqd/120:15:171
1018995325,8cyclictest25-21ksoftirqd/100:00:201
1018995325,8cyclictest25-21ksoftirqd/100:00:191
1018995324,7cyclictest25-21ksoftirqd/121:15:271
313952520,2sleep20-21swapper/222:25:212
1018995219,4cyclictest25-21ksoftirqd/122:10:171
1018995218,4cyclictest25-21ksoftirqd/120:30:201
1018995213,9cyclictest25-21ksoftirqd/120:05:241
1018995212,10cyclictest25-21ksoftirqd/123:25:171
97092510,2sleep20-21swapper/222:49:592
35472510,3sleep1231rcuc/121:30:001
139391510,1ptp4l401ktimersoftd/322:02:373
1018995123,7cyclictest25-21ksoftirqd/100:30:201
1018995123,7cyclictest25-21ksoftirqd/100:30:201
1018995122,3cyclictest25-21ksoftirqd/123:35:171
1018995121,3cyclictest25-21ksoftirqd/122:20:261
1018995116,5cyclictest25-21ksoftirqd/100:35:151
1018995116,4cyclictest25-21ksoftirqd/120:55:171
1018995116,4cyclictest25-21ksoftirqd/120:55:171
1018995115,7cyclictest25-21ksoftirqd/122:50:001
22262500,1sleep00-21swapper/021:25:170
1018995024,4cyclictest25-21ksoftirqd/123:10:261
1018995018,3cyclictest25-21ksoftirqd/123:05:141
1018995017,7cyclictest25-21ksoftirqd/121:05:141
1018995010,7cyclictest25-21ksoftirqd/121:40:241
1018995010,7cyclictest25-21ksoftirqd/119:15:261
1018995010,7cyclictest25-21ksoftirqd/119:10:241
1018994920,4cyclictest25-21ksoftirqd/122:42:201
1018994919,4cyclictest25-21ksoftirqd/123:20:171
1018994916,4cyclictest25-21ksoftirqd/119:35:001
1018994910,8cyclictest25-21ksoftirqd/122:05:011
1018994910,7cyclictest25-21ksoftirqd/121:30:271
1018994825,6cyclictest25-21ksoftirqd/119:45:251
1018994821,7cyclictest25-21ksoftirqd/120:25:161
1018994819,4cyclictest25-21ksoftirqd/123:43:381
1018994819,4cyclictest25-21ksoftirqd/122:33:201
1018994818,4cyclictest25-21ksoftirqd/123:54:091
1018994818,4cyclictest25-21ksoftirqd/120:37:531
1018994817,4cyclictest25-21ksoftirqd/100:25:001
1018994817,3cyclictest25-21ksoftirqd/119:55:221
1018994815,8cyclictest25-21ksoftirqd/122:50:191
1018994815,4cyclictest25-21ksoftirqd/123:45:261
1018994812,5cyclictest25-21ksoftirqd/123:15:281
1018994810,7cyclictest25-21ksoftirqd/121:35:251
1018994720,7cyclictest25-21ksoftirqd/123:55:161
1018994717,5cyclictest25-21ksoftirqd/121:00:211
1018994716,10cyclictest25-21ksoftirqd/100:05:161
1018994715,4cyclictest25-21ksoftirqd/123:00:231
1018994715,3cyclictest25-21ksoftirqd/120:10:251
1018994713,7cyclictest25-21ksoftirqd/119:25:211
101899462,3cyclictest25-21ksoftirqd/119:20:271
1018994616,4cyclictest25-21ksoftirqd/123:32:511
1018994616,4cyclictest25-21ksoftirqd/123:32:501
1018994616,4cyclictest25-21ksoftirqd/119:52:541
1018994615,6cyclictest25-21ksoftirqd/100:15:301
1018994614,8cyclictest25-21ksoftirqd/121:50:271
1018994613,8cyclictest25-21ksoftirqd/121:55:191
1018994612,7cyclictest25-21ksoftirqd/120:45:151
101899459,4cyclictest25-21ksoftirqd/120:50:251
101899456,4cyclictest25-21ksoftirqd/122:25:251
1018994514,7cyclictest25-21ksoftirqd/120:20:251
1018994415,8cyclictest25-21ksoftirqd/100:25:221
1018994413,9cyclictest25-21ksoftirqd/121:20:281
139391430,0ptp4l401ktimersoftd/321:47:083
101899433,3cyclictest121rcu_preempt22:35:231
139391420,0ptp4l401ktimersoftd/321:15:163
139391410,1ptp4l401ktimersoftd/320:50:593
139391410,0ptp4l401ktimersoftd/321:08:263
139391410,0ptp4l401ktimersoftd/300:25:143
101899410,3cyclictest25-21ksoftirqd/121:15:011
101899404,3cyclictest121rcu_preempt22:55:171
1020993932,5cyclictest41-21ksoftirqd/321:40:003
1019993934,3cyclictest33-21ksoftirqd/222:20:002
101899394,3cyclictest121rcu_preempt19:40:141
101899391,4cyclictest121rcu_preempt22:00:131
1019993834,2cyclictest33-21ksoftirqd/219:40:012
101899380,3cyclictest121rcu_preempt00:10:191
1017993732,3cyclictest156292sleep000:09:250
139391360,1ptp4l401ktimersoftd/300:12:083
139391360,0ptp4l401ktimersoftd/321:30:213
1019993631,3cyclictest33-21ksoftirqd/221:30:172
1019993631,3cyclictest33-21ksoftirqd/219:15:002
1019993631,3cyclictest33-21ksoftirqd/200:29:592
1019993631,3cyclictest13969-21idleruntime-cro20:45:012
1019993630,4cyclictest33-21ksoftirqd/221:54:592
1019993630,4cyclictest33-21ksoftirqd/200:33:102
1019993630,4cyclictest33-21ksoftirqd/200:33:102
1017993632,2cyclictest9-21ksoftirqd/021:40:000
1017993631,3cyclictest9-21ksoftirqd/023:25:000
1017993631,3cyclictest9-21ksoftirqd/022:15:120
139391350,0ptp4l401ktimersoftd/300:00:243
139391350,0ptp4l401ktimersoftd/300:00:243
1020993530,3cyclictest41-21ksoftirqd/323:00:113
1020993529,4cyclictest41-21ksoftirqd/320:38:003
1020993529,4cyclictest41-21ksoftirqd/300:06:513
1019993529,4cyclictest33-21ksoftirqd/222:24:052
1019993529,4cyclictest33-21ksoftirqd/220:59:012
1019993529,4cyclictest33-21ksoftirqd/220:59:002
1019993529,4cyclictest33-21ksoftirqd/220:26:142
1019993529,4cyclictest33-21ksoftirqd/200:05:502
1017993531,2cyclictest4759-21sed23:45:190
1017993530,3cyclictest9-21ksoftirqd/023:28:250
1017993530,3cyclictest9-21ksoftirqd/021:55:000
1017993529,4cyclictest9-21ksoftirqd/023:34:310
1017993529,4cyclictest9-21ksoftirqd/023:34:310
1017993529,4cyclictest9-21ksoftirqd/021:55:110
1017993529,4cyclictest9-21ksoftirqd/020:47:100
1017993529,4cyclictest9-21ksoftirqd/000:38:140
57898340,7rtkit-daemon0-21swapper/019:38:480
147052340,2sleep30-21swapper/321:50:243
139391340,0ptp4l401ktimersoftd/321:10:203
139391340,0ptp4l401ktimersoftd/319:34:583
139391340,0ptp4l401ktimersoftd/319:10:073
1020993428,4cyclictest41-21ksoftirqd/320:46:013
1020993428,4cyclictest41-21ksoftirqd/319:17:323
1019993429,3cyclictest33-21ksoftirqd/221:25:102
1019993428,4cyclictest33-21ksoftirqd/221:12:522
1019993428,4cyclictest33-21ksoftirqd/220:33:322
1019993428,4cyclictest33-21ksoftirqd/220:24:062
1019993428,4cyclictest33-21ksoftirqd/220:12:462
1019993428,4cyclictest33-21ksoftirqd/219:54:212
1017993429,3cyclictest9-21ksoftirqd/022:13:280
1017993429,3cyclictest9-21ksoftirqd/020:42:260
1017993429,3cyclictest9-21ksoftirqd/020:20:010
1017993429,3cyclictest9-21ksoftirqd/020:20:000
1017993428,4cyclictest9-21ksoftirqd/022:54:510
1017993428,4cyclictest9-21ksoftirqd/021:06:520
1017993428,4cyclictest9-21ksoftirqd/021:04:350
1017993428,4cyclictest9-21ksoftirqd/019:26:520
1017993428,4cyclictest9-21ksoftirqd/000:11:420
139391330,10ptp4l401ktimersoftd/300:39:343
1020993328,3cyclictest41-21ksoftirqd/320:15:003
1020993327,4cyclictest41-21ksoftirqd/322:35:333
1020993327,4cyclictest41-21ksoftirqd/322:18:563
1020993327,4cyclictest41-21ksoftirqd/319:38:583
1019993328,3cyclictest33-21ksoftirqd/223:10:582
1019993328,3cyclictest33-21ksoftirqd/219:47:002
1019993328,3cyclictest23173-21egrep22:10:122
1019993327,4cyclictest33-21ksoftirqd/223:25:552
1019993327,4cyclictest33-21ksoftirqd/223:03:242
1019993327,4cyclictest33-21ksoftirqd/222:56:422
1019993327,4cyclictest33-21ksoftirqd/221:56:292
1019993327,4cyclictest33-21ksoftirqd/220:50:452
1019993327,4cyclictest33-21ksoftirqd/219:56:302
1019993327,4cyclictest33-21ksoftirqd/219:16:142
1019993327,4cyclictest33-21ksoftirqd/200:01:052
1019993327,4cyclictest33-21ksoftirqd/200:01:052
1017993328,3cyclictest9-21ksoftirqd/023:05:190
1017993328,3cyclictest9-21ksoftirqd/021:31:190
1017993327,4cyclictest9-21ksoftirqd/000:23:240
1017993327,4cyclictest9-21ksoftirqd/000:01:550
1017993327,4cyclictest9-21ksoftirqd/000:01:550
1017993327,3cyclictest9-21ksoftirqd/019:55:010
1017993327,3cyclictest9-21ksoftirqd/019:32:530
139391320,0ptp4l401ktimersoftd/300:31:263
139391320,0ptp4l401ktimersoftd/300:31:253
1020993227,3cyclictest41-21ksoftirqd/322:10:003
1020993227,3cyclictest41-21ksoftirqd/320:20:003
1020993227,3cyclictest41-21ksoftirqd/320:20:003
1020993226,4cyclictest41-21ksoftirqd/323:43:013
1020993226,4cyclictest41-21ksoftirqd/322:58:523
1020993226,4cyclictest41-21ksoftirqd/322:54:223
1020993226,4cyclictest41-21ksoftirqd/319:29:073
1020993218,4cyclictest41-21ksoftirqd/320:20:153
1019993227,3cyclictest33-21ksoftirqd/223:59:592
1019993227,3cyclictest33-21ksoftirqd/223:19:242
1019993227,3cyclictest33-21ksoftirqd/221:47:592
1019993227,3cyclictest33-21ksoftirqd/219:43:592
1019993227,3cyclictest33-21ksoftirqd/200:14:332
1019993226,4cyclictest33-21ksoftirqd/221:43:452
1019993226,4cyclictest33-21ksoftirqd/220:05:442
1019993226,4cyclictest33-21ksoftirqd/200:20:582
1017993227,3cyclictest9-21ksoftirqd/023:00:190
1017993227,3cyclictest9-21ksoftirqd/022:55:400
1017993227,3cyclictest9-21ksoftirqd/019:50:000
1017993227,3cyclictest9-21ksoftirqd/000:16:460
1017993226,3cyclictest9-21ksoftirqd/022:31:290
139391310,0ptp4l401ktimersoftd/323:45:233
1020993126,3cyclictest41-21ksoftirqd/323:52:333
1020993125,4cyclictest41-21ksoftirqd/323:09:513
1020993125,4cyclictest41-21ksoftirqd/322:25:383
1020993125,3cyclictest41-21ksoftirqd/320:05:013
1019993126,3cyclictest33-21ksoftirqd/223:43:052
1019993126,3cyclictest33-21ksoftirqd/221:35:112
1019993126,3cyclictest33-21ksoftirqd/221:18:362
1019993125,4cyclictest33-21ksoftirqd/223:30:562
1019993125,4cyclictest33-21ksoftirqd/223:30:562
1019993125,4cyclictest33-21ksoftirqd/222:44:312
1019993125,4cyclictest33-21ksoftirqd/219:31:462
1019993125,3cyclictest33-21ksoftirqd/220:05:012
1017993127,3cyclictest9-21ksoftirqd/022:25:180
1017993127,2cyclictest9-21ksoftirqd/021:45:000
1017993127,2cyclictest9-21ksoftirqd/019:10:150
1017993126,3cyclictest9-21ksoftirqd/023:57:380
1017993126,3cyclictest9-21ksoftirqd/021:20:000
1017993126,3cyclictest9-21ksoftirqd/020:13:310
1017993125,4cyclictest9-21ksoftirqd/021:48:440
1017993125,4cyclictest9-21ksoftirqd/019:16:080
139391300,0ptp4l401ktimersoftd/320:56:093
139391300,0ptp4l401ktimersoftd/320:56:093
139391300,0ptp4l401ktimersoftd/320:33:363
139391300,0ptp4l401ktimersoftd/319:56:153
1020993026,3cyclictest41-21ksoftirqd/322:44:243
1020993024,4cyclictest41-21ksoftirqd/319:49:243
1019993026,2cyclictest33-21ksoftirqd/223:45:192
1019993025,3cyclictest33-21ksoftirqd/223:54:032
1019993025,3cyclictest33-21ksoftirqd/222:30:502
1019993025,3cyclictest33-21ksoftirqd/222:05:132
1019993025,3cyclictest33-21ksoftirqd/221:24:552
1019993024,4cyclictest33-21ksoftirqd/220:45:122
1019993019,9cyclictest33-21ksoftirqd/222:35:262
1017993025,3cyclictest9-21ksoftirqd/022:00:140
1017993025,3cyclictest9-21ksoftirqd/021:10:370
1017993025,3cyclictest9-21ksoftirqd/020:33:260
1017993025,3cyclictest9-21ksoftirqd/020:22:390
1017993024,4cyclictest9-21ksoftirqd/023:52:400
1017993024,4cyclictest9-21ksoftirqd/023:44:420
1017993024,4cyclictest9-21ksoftirqd/020:29:570
1017993023,5cyclictest9-21ksoftirqd/020:57:490
1017993023,5cyclictest9-21ksoftirqd/020:57:490
139391290,0ptp4l401ktimersoftd/323:15:163
139391290,0ptp4l401ktimersoftd/323:12:353
139391290,0ptp4l401ktimersoftd/321:58:013
139391290,0ptp4l401ktimersoftd/321:21:273
139391290,0ptp4l401ktimersoftd/321:02:023
139391290,0ptp4l401ktimersoftd/320:40:373
1020992924,3cyclictest41-21ksoftirqd/322:10:133
1020992924,3cyclictest41-21ksoftirqd/321:25:133
1020992924,3cyclictest41-21ksoftirqd/319:50:413
1020992924,3cyclictest41-21ksoftirqd/319:20:243
1020992923,4cyclictest41-21ksoftirqd/323:58:373
1020992923,4cyclictest41-21ksoftirqd/320:29:563
1020992923,4cyclictest41-21ksoftirqd/319:40:103
1019992924,3cyclictest33-21ksoftirqd/222:54:432
1019992923,4cyclictest33-21ksoftirqd/223:05:052
1019992918,9cyclictest33-21ksoftirqd/221:05:162
1017992925,3cyclictest9-21ksoftirqd/023:10:210
1017992924,4cyclictest9-21ksoftirqd/019:24:590
1017992924,3cyclictest9-21ksoftirqd/022:20:240
1017992924,3cyclictest9-21ksoftirqd/022:07:580
1017992924,3cyclictest9-21ksoftirqd/000:25:150
1017992923,4cyclictest9-21ksoftirqd/000:33:120
1017992923,4cyclictest9-21ksoftirqd/000:33:110
139391280,7ptp4l401ktimersoftd/321:42:473
139391280,0ptp4l401ktimersoftd/323:20:253
1020992823,3cyclictest41-21ksoftirqd/323:31:533
1020992823,3cyclictest41-21ksoftirqd/323:31:533
1020992821,5cyclictest41-21ksoftirqd/322:23:293
1019992823,3cyclictest33-21ksoftirqd/223:37:452
1019992823,3cyclictest33-21ksoftirqd/222:00:202
1019992822,4cyclictest33-21ksoftirqd/220:38:102
1019992822,4cyclictest33-21ksoftirqd/200:35:392
1017992825,2cyclictest9-21ksoftirqd/019:40:210
1017992824,3cyclictest9-21ksoftirqd/020:05:010
1017992824,2cyclictest9-21ksoftirqd/021:20:240
1017992823,3cyclictest9-21ksoftirqd/020:05:020
1017992822,4cyclictest9-21ksoftirqd/022:49:020
1017992822,4cyclictest9-21ksoftirqd/022:40:110
1020992723,3cyclictest41-21ksoftirqd/320:07:573
1020992721,4cyclictest41-21ksoftirqd/300:15:463
1019992723,2cyclictest33-21ksoftirqd/219:25:182
1019992722,3cyclictest33-21ksoftirqd/223:20:172
1019992722,3cyclictest33-21ksoftirqd/221:03:522
1017992722,3cyclictest9-21ksoftirqd/019:50:080
1017992721,4cyclictest9-21ksoftirqd/023:16:180
1017992721,4cyclictest9-21ksoftirqd/022:35:060
1017992720,4cyclictest9-21ksoftirqd/023:36:240
139391260,8ptp4l0-21swapper/300:20:573
1020992620,4cyclictest41-21ksoftirqd/323:36:113
1020992620,4cyclictest41-21ksoftirqd/323:25:063
1017992621,3cyclictest9-21ksoftirqd/020:35:200
139391250,8ptp4l0-21swapper/322:31:163
1020992520,3cyclictest41-21ksoftirqd/322:45:203
101999243,18cyclictest8162-21cat19:25:002
101999243,18cyclictest2259-21cat20:20:012
1017992419,3cyclictest9-21ksoftirqd/020:50:110
1019992317,3cyclictest33-21ksoftirqd/220:15:212
1019992316,5cyclictest18684-21diskstats00:15:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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