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2026-03-27 - 04:42
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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 Fri Mar 27, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206173,22phc2sys0-21swapper/319:09:343
296152203169,23sleep10-21swapper/119:08:341
296712201168,22sleep00-21swapper/019:09:180
295022201168,22sleep20-21swapper/219:07:072
526721670,1sleep20-21swapper/220:30:272
2019921590,7sleep13001699cyclictest23:40:001
326482930,8sleep1241ktimersoftd/100:05:161
326482930,8sleep1241ktimersoftd/100:05:151
30018996832,4cyclictest41-21ksoftirqd/322:35:003
208032650,4sleep30-21swapper/323:40:143
30018996228,5cyclictest41-21ksoftirqd/319:20:223
30018996130,4cyclictest41-21ksoftirqd/323:35:173
30018996027,4cyclictest41-21ksoftirqd/322:25:203
30018995927,8cyclictest41-21ksoftirqd/320:55:013
30018995926,6cyclictest41-21ksoftirqd/319:35:183
294622590,4sleep00-21swapper/022:50:160
30018995830,4cyclictest41-21ksoftirqd/321:20:193
30018995827,8cyclictest41-21ksoftirqd/323:45:203
30018995826,4cyclictest41-21ksoftirqd/320:40:003
30018995826,4cyclictest41-21ksoftirqd/319:15:233
30018995824,5cyclictest41-21ksoftirqd/319:10:163
30018995738,2cyclictest41-21ksoftirqd/320:30:283
30018995727,7cyclictest41-21ksoftirqd/300:00:003
30018995727,4cyclictest41-21ksoftirqd/322:15:003
30018995726,4cyclictest41-21ksoftirqd/319:50:013
30018995725,4cyclictest41-21ksoftirqd/320:00:233
30018995723,4cyclictest41-21ksoftirqd/322:25:013
30018995629,6cyclictest41-21ksoftirqd/319:55:223
30018995626,7cyclictest41-21ksoftirqd/322:17:293
30018995625,7cyclictest41-21ksoftirqd/300:35:193
30018995625,7cyclictest41-21ksoftirqd/300:35:193
30018995625,10cyclictest41-21ksoftirqd/320:20:013
30018995624,4cyclictest41-21ksoftirqd/321:50:023
30018995623,4cyclictest41-21ksoftirqd/322:35:263
30018995620,4cyclictest41-21ksoftirqd/320:55:223
30018995525,7cyclictest41-21ksoftirqd/322:50:253
30018995524,4cyclictest41-21ksoftirqd/323:10:123
30018995524,4cyclictest41-21ksoftirqd/321:45:013
30018995523,8cyclictest41-21ksoftirqd/321:10:123
30018995520,4cyclictest41-21ksoftirqd/321:35:153
30018995426,4cyclictest41-21ksoftirqd/300:26:133
30018995425,4cyclictest41-21ksoftirqd/323:05:243
30018995425,3cyclictest41-21ksoftirqd/320:25:173
30018995423,4cyclictest41-21ksoftirqd/321:00:193
30018995423,4cyclictest41-21ksoftirqd/300:10:133
30018995420,5cyclictest41-21ksoftirqd/323:05:003
30018995420,5cyclictest41-21ksoftirqd/323:05:003
30018995420,4cyclictest41-21ksoftirqd/320:05:163
30018995419,11cyclictest41-21ksoftirqd/300:00:293
30018995418,7cyclictest41-21ksoftirqd/300:30:173
30018995324,7cyclictest41-21ksoftirqd/320:45:213
30018995322,10cyclictest41-21ksoftirqd/321:15:233
30018995321,8cyclictest41-21ksoftirqd/320:35:273
30018995320,8cyclictest41-21ksoftirqd/322:45:133
30018995320,4cyclictest41-21ksoftirqd/300:20:013
30018995316,7cyclictest41-21ksoftirqd/300:05:213
30018995316,7cyclictest41-21ksoftirqd/300:05:203
30018995229,4cyclictest41-21ksoftirqd/323:55:003
30018995220,4cyclictest41-21ksoftirqd/319:30:003
30018995219,5cyclictest41-21ksoftirqd/323:25:123
30018995219,4cyclictest41-21ksoftirqd/323:00:013
30018995122,7cyclictest41-21ksoftirqd/319:30:143
30018995121,7cyclictest41-21ksoftirqd/322:00:163
30018995121,4cyclictest41-21ksoftirqd/320:20:183
30018995120,8cyclictest41-21ksoftirqd/322:40:263
30018995119,7cyclictest41-21ksoftirqd/323:15:143
30018995022,7cyclictest41-21ksoftirqd/319:50:193
30018995017,4cyclictest41-21ksoftirqd/321:05:123
30018995017,4cyclictest41-21ksoftirqd/321:05:123
30018995012,3cyclictest41-21ksoftirqd/320:12:093
57898490,2rtkit-daemon0-21swapper/020:00:250
30018994919,4cyclictest41-21ksoftirqd/321:30:123
30018994918,7cyclictest41-21ksoftirqd/322:00:003
244442490,2sleep00-21swapper/021:10:250
30018994819,8cyclictest41-21ksoftirqd/319:40:133
30018994818,9cyclictest41-21ksoftirqd/321:25:233
30018994719,10cyclictest41-21ksoftirqd/323:20:123
30018994711,4cyclictest41-21ksoftirqd/323:30:143
30018994517,7cyclictest41-21ksoftirqd/300:20:283
3001599451,40cyclictest18009-21ls20:59:590
238242450,3sleep20-21swapper/220:05:162
30018994412,4cyclictest41-21ksoftirqd/322:08:063
292522430,2sleep20-21swapper/222:50:142
30015994237,3cyclictest9574-21latency_hist00:25:000
57898410,4rtkit-daemon26183-21apt-get22:45:120
30018994136,3cyclictest41-21ksoftirqd/321:55:003
30015994035,3cyclictest9-21ksoftirqd/000:00:010
30015994033,4cyclictest9-21ksoftirqd/022:35:000
57898370,2rtkit-daemon0-21swapper/119:40:201
3001799379,26cyclictest28165-21kworker/2:223:45:242
30016993732,3cyclictest25-21ksoftirqd/120:50:011
30015993732,3cyclictest9-21ksoftirqd/023:55:010
30015993732,3cyclictest9-21ksoftirqd/020:54:590
30017993630,4cyclictest33-21ksoftirqd/219:27:052
30017993629,4cyclictest33-21ksoftirqd/222:07:232
30016993632,3cyclictest25-21ksoftirqd/100:17:521
30016993631,3cyclictest25-21ksoftirqd/123:05:111
30016993631,3cyclictest25-21ksoftirqd/120:10:001
57898350,4rtkit-daemon17921-21ls22:25:271
30017993529,4cyclictest33-21ksoftirqd/222:03:582
30017993529,4cyclictest33-21ksoftirqd/220:16:142
30016993530,3cyclictest25-21ksoftirqd/121:36:441
30016993530,3cyclictest25-21ksoftirqd/119:21:341
30016993530,3cyclictest25-21ksoftirqd/100:35:171
30016993530,3cyclictest25-21ksoftirqd/100:35:161
30016993529,4cyclictest25-21ksoftirqd/123:24:351
30016993529,4cyclictest25-21ksoftirqd/121:28:301
30016993529,4cyclictest25-21ksoftirqd/121:21:131
30015993531,2cyclictest9-21ksoftirqd/021:54:590
30015993530,3cyclictest9-21ksoftirqd/022:40:150
30015993530,3cyclictest9-21ksoftirqd/022:24:590
30015993530,3cyclictest9-21ksoftirqd/022:20:000
30015993530,3cyclictest9-21ksoftirqd/021:15:170
30015993530,3cyclictest9-21ksoftirqd/020:29:590
30015993530,3cyclictest9-21ksoftirqd/000:40:000
30015993530,3cyclictest9-21ksoftirqd/000:40:000
30015993529,4cyclictest9-21ksoftirqd/021:46:500
30015993529,3cyclictest9-21ksoftirqd/022:35:140
30015993529,3cyclictest9-21ksoftirqd/021:25:000
30015993529,3cyclictest9-21ksoftirqd/000:20:000
30015993528,3cyclictest9-21ksoftirqd/000:15:000
57898340,2rtkit-daemon0-21swapper/119:15:221
30017993428,4cyclictest33-21ksoftirqd/222:59:572
30017993428,4cyclictest33-21ksoftirqd/219:24:512
30017993428,4cyclictest33-21ksoftirqd/200:34:292
30017993428,4cyclictest33-21ksoftirqd/200:18:242
30016993429,3cyclictest25-21ksoftirqd/120:15:001
30016993428,4cyclictest25-21ksoftirqd/123:44:171
30016993428,4cyclictest25-21ksoftirqd/122:42:391
30016993428,4cyclictest25-21ksoftirqd/122:03:281
30015993429,3cyclictest9-21ksoftirqd/022:05:000
30015993428,4cyclictest9-21ksoftirqd/023:48:420
30015993428,4cyclictest9-21ksoftirqd/020:44:330
30015993427,4cyclictest9-21ksoftirqd/023:30:090
30017993328,3cyclictest33-21ksoftirqd/219:14:332
30017993327,4cyclictest33-21ksoftirqd/223:53:102
30017993327,4cyclictest33-21ksoftirqd/223:35:372
30017993327,4cyclictest33-21ksoftirqd/223:10:492
30017993327,4cyclictest33-21ksoftirqd/222:18:252
30017993327,4cyclictest33-21ksoftirqd/221:11:162
30017993327,4cyclictest33-21ksoftirqd/220:59:262
30017993327,4cyclictest33-21ksoftirqd/220:52:362
30016993329,2cyclictest25-21ksoftirqd/123:20:011
30016993328,3cyclictest25-21ksoftirqd/122:37:461
30016993327,4cyclictest25-21ksoftirqd/122:57:291
30016993327,4cyclictest25-21ksoftirqd/122:31:521
30016993327,4cyclictest25-21ksoftirqd/122:05:081
30016993327,4cyclictest25-21ksoftirqd/121:47:561
30016993327,4cyclictest25-21ksoftirqd/121:09:001
30016993327,4cyclictest25-21ksoftirqd/121:09:001
30016993327,4cyclictest25-21ksoftirqd/121:00:001
30016993327,4cyclictest25-21ksoftirqd/120:19:071
30016993327,4cyclictest25-21ksoftirqd/100:12:291
30016993327,3cyclictest25-21ksoftirqd/100:20:111
30015993328,3cyclictest9-21ksoftirqd/023:38:510
30015993328,3cyclictest9-21ksoftirqd/023:10:010
30015993328,3cyclictest9-21ksoftirqd/020:40:010
30015993327,4cyclictest9-21ksoftirqd/019:34:210
30015993327,4cyclictest9-21ksoftirqd/019:27:300
3001799323,28cyclictest19422-21kworker/2:221:06:502
3001799323,28cyclictest19422-21kworker/2:221:06:502
30017993227,3cyclictest33-21ksoftirqd/223:33:392
30017993227,3cyclictest33-21ksoftirqd/200:10:522
30017993227,3cyclictest15434-21cron23:30:012
30017993226,4cyclictest33-21ksoftirqd/223:43:312
30017993226,4cyclictest33-21ksoftirqd/222:41:372
30017993226,4cyclictest33-21ksoftirqd/219:55:402
30017993217,13cyclictest33-21ksoftirqd/220:14:592
30017993211,19cyclictest28165-21kworker/2:200:05:242
30017993211,19cyclictest28165-21kworker/2:200:05:242
30016993227,3cyclictest25-21ksoftirqd/123:26:291
30016993227,3cyclictest25-21ksoftirqd/120:28:291
30016993227,3cyclictest25-21ksoftirqd/100:03:311
30016993226,4cyclictest25-21ksoftirqd/123:12:201
30016993226,4cyclictest25-21ksoftirqd/122:18:041
30016993226,4cyclictest25-21ksoftirqd/122:14:111
30016993226,4cyclictest25-21ksoftirqd/121:33:071
30016993226,4cyclictest25-21ksoftirqd/119:56:441
30016993226,4cyclictest25-21ksoftirqd/119:26:401
30015993228,2cyclictest9-21ksoftirqd/020:50:010
30015993228,2cyclictest9-21ksoftirqd/000:25:180
30015993227,3cyclictest9-21ksoftirqd/021:40:170
30015993227,3cyclictest9-21ksoftirqd/020:30:200
30015993227,3cyclictest9-21ksoftirqd/019:15:010
30015993226,4cyclictest9-21ksoftirqd/020:20:010
30015993226,4cyclictest9-21ksoftirqd/019:57:100
30015993226,3cyclictest9-21ksoftirqd/019:50:010
30017993126,3cyclictest10901-21cron20:45:012
30017993125,4cyclictest33-21ksoftirqd/223:55:382
30017993125,4cyclictest33-21ksoftirqd/222:46:492
30017993125,4cyclictest33-21ksoftirqd/219:53:472
30016993126,3cyclictest25-21ksoftirqd/123:01:351
30016993126,3cyclictest25-21ksoftirqd/123:01:341
30016993126,3cyclictest25-21ksoftirqd/122:00:001
30016993125,4cyclictest25-21ksoftirqd/121:19:401
30016993125,4cyclictest25-21ksoftirqd/120:42:201
30016993125,4cyclictest25-21ksoftirqd/120:03:581
30016993125,4cyclictest25-21ksoftirqd/100:35:001
30015993126,3cyclictest9-21ksoftirqd/019:35:200
30015993126,3cyclictest9-21ksoftirqd/000:00:210
30015993125,4cyclictest9-21ksoftirqd/023:20:580
30015993125,4cyclictest9-21ksoftirqd/021:00:010
30015993125,4cyclictest9-21ksoftirqd/020:22:380
30015993125,4cyclictest9-21ksoftirqd/019:43:270
30015993125,4cyclictest9-21ksoftirqd/000:33:300
3001799304,24cyclictest28165-21kworker/2:223:06:142
3001799303,25cyclictest8132-21kworker/2:022:12:252
30017993025,3cyclictest33-21ksoftirqd/222:21:022
30017993025,3cyclictest33-21ksoftirqd/220:45:112
30017993025,3cyclictest33-21ksoftirqd/220:23:252
30017993025,3cyclictest33-21ksoftirqd/219:34:452
30017993024,4cyclictest33-21ksoftirqd/220:01:232
30017993024,4cyclictest33-21ksoftirqd/219:40:292
3001799302,26cyclictest19422-21kworker/2:221:46:292
3001799302,16cyclictest8132-21kworker/2:021:59:172
3001799301,17cyclictest19422-21kworker/2:221:27:532
30016993025,3cyclictest25-21ksoftirqd/120:53:571
30016993025,3cyclictest25-21ksoftirqd/119:52:201
30016993024,4cyclictest25-21ksoftirqd/123:52:401
30016993024,4cyclictest25-21ksoftirqd/122:47:451
30016993024,4cyclictest25-21ksoftirqd/120:38:271
30016993024,4cyclictest25-21ksoftirqd/119:38:301
30015993025,3cyclictest9-21ksoftirqd/023:42:570
30015993024,4cyclictest9-21ksoftirqd/021:38:530
30015993024,4cyclictest9-21ksoftirqd/021:06:230
30015993024,4cyclictest9-21ksoftirqd/021:06:230
30015993024,3cyclictest9-21ksoftirqd/021:27:060
3001799297,20cyclictest8132-21kworker/2:021:50:012
30017992924,3cyclictest33-21ksoftirqd/221:02:202
30017992924,3cyclictest33-21ksoftirqd/220:36:532
30017992923,4cyclictest33-21ksoftirqd/222:29:042
30017992923,4cyclictest33-21ksoftirqd/221:35:022
3001799292,26cyclictest28165-21kworker/2:223:01:332
3001799292,26cyclictest28165-21kworker/2:223:01:332
3001799292,14cyclictest31841-21kworker/2:119:45:212
30016992924,3cyclictest25-21ksoftirqd/120:31:221
30016992923,4cyclictest25-21ksoftirqd/119:48:541
30016992923,4cyclictest25-21ksoftirqd/119:10:171
30015992924,3cyclictest9-21ksoftirqd/022:58:310
30015992924,3cyclictest9-21ksoftirqd/020:10:010
30015992924,3cyclictest9-21ksoftirqd/019:50:010
30015992924,2cyclictest9-21ksoftirqd/000:05:150
30015992924,2cyclictest9-21ksoftirqd/000:05:150
30015992923,4cyclictest9-21ksoftirqd/023:19:020
3001799283,24cyclictest31841-21kworker/2:119:37:412
3001799283,13cyclictest28165-21kworker/2:223:16:572
30017992823,3cyclictest33-21ksoftirqd/221:40:222
3001799282,25cyclictest31841-21kworker/2:119:17:492
3001799282,25cyclictest19422-21kworker/2:221:22:372
3001799282,24cyclictest28165-21kworker/2:200:00:572
3001799282,13cyclictest19422-21kworker/2:221:30:262
3001799281,26cyclictest23542-21kworker/2:020:25:572
30016992823,3cyclictest25-21ksoftirqd/123:57:361
30016992823,3cyclictest25-21ksoftirqd/123:30:251
30016992823,3cyclictest25-21ksoftirqd/121:53:091
30016992823,3cyclictest25-21ksoftirqd/121:11:041
30016992823,3cyclictest25-21ksoftirqd/119:30:281
30016992823,3cyclictest25-21ksoftirqd/100:26:321
30016992822,4cyclictest25-21ksoftirqd/122:20:421
30016992822,4cyclictest25-21ksoftirqd/120:20:591
30015992824,2cyclictest9-21ksoftirqd/019:20:010
30015992823,3cyclictest9-21ksoftirqd/023:25:180
30015992823,3cyclictest9-21ksoftirqd/023:13:000
30015992823,3cyclictest9-21ksoftirqd/023:00:180
30015992823,3cyclictest9-21ksoftirqd/023:00:180
30015992823,3cyclictest9-21ksoftirqd/022:10:150
30015992823,3cyclictest9-21ksoftirqd/020:12:000
30015992822,3cyclictest9-21ksoftirqd/022:30:000
3001799273,23cyclictest28165-21kworker/2:200:22:492
3001799272,24cyclictest9688-21kworker/2:100:28:212
3001799272,24cyclictest8132-21kworker/2:022:39:222
3001799272,24cyclictest28165-21kworker/2:223:24:102
30017992722,3cyclictest33-21ksoftirqd/200:35:372
30017992722,3cyclictest33-21ksoftirqd/200:35:372
3001799272,13cyclictest8132-21kworker/2:022:34:332
3001799271,25cyclictest19422-21kworker/2:221:16:292
30016992721,4cyclictest25-21ksoftirqd/123:45:501
30016992721,4cyclictest25-21ksoftirqd/121:44:021
30015992721,4cyclictest9-21ksoftirqd/021:31:070
30016992520,3cyclictest25-21ksoftirqd/122:50:461
30016992520,3cyclictest25-21ksoftirqd/121:02:051
30015992418,4cyclictest9-21ksoftirqd/022:08:170
30015992218,2cyclictest9-21ksoftirqd/019:20:150
30015992014,4cyclictest9-21ksoftirqd/021:59:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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