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2026-09-16 - 07:36
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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 Wed Sep 16, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491234169,22phc2sys0-21swapper/319:05:533
106022204170,23sleep20-21swapper/219:07:222
106012204171,22sleep10-21swapper/119:07:211
107242202169,22sleep00-21swapper/019:08:560
13949112074,36phc2sys0-21swapper/319:10:003
13949112074,36phc2sys0-21swapper/319:10:003
11102996126,9cyclictest33-21ksoftirqd/221:25:212
11102996031,10cyclictest33-21ksoftirqd/220:30:012
11102995721,7cyclictest33-21ksoftirqd/200:14:462
277522550,3sleep01110099cyclictest23:05:210
11102995528,9cyclictest33-21ksoftirqd/223:10:012
11102995521,7cyclictest33-21ksoftirqd/223:22:392
11102995520,7cyclictest33-21ksoftirqd/220:53:472
11102995421,6cyclictest33-21ksoftirqd/220:40:072
11102995420,5cyclictest33-21ksoftirqd/221:35:252
11102995416,9cyclictest33-21ksoftirqd/221:20:182
297002530,3sleep01110099cyclictest22:00:300
11102995226,8cyclictest33-21ksoftirqd/221:05:142
11102995226,7cyclictest33-21ksoftirqd/220:04:592
11102995219,5cyclictest33-21ksoftirqd/219:16:242
11102995219,5cyclictest33-21ksoftirqd/200:30:202
11102995216,6cyclictest33-21ksoftirqd/221:10:122
157552510,2sleep10-21swapper/121:34:561
1110299515,7cyclictest33-21ksoftirqd/222:40:012
1110299515,6cyclictest33-21ksoftirqd/200:00:202
11102995121,5cyclictest33-21ksoftirqd/222:09:002
11102995119,5cyclictest33-21ksoftirqd/222:51:212
61492500,1sleep36148-21cut20:05:243
139391500,1ptp4l391rcuc/320:10:463
1110299505,9cyclictest33-21ksoftirqd/221:00:172
1110299505,5cyclictest33-21ksoftirqd/222:55:192
1110299503,6cyclictest33-21ksoftirqd/221:45:002
11102995026,4cyclictest33-21ksoftirqd/223:30:162
1110299495,5cyclictest33-21ksoftirqd/223:45:252
1110299495,5cyclictest33-21ksoftirqd/200:05:132
1110299494,5cyclictest33-21ksoftirqd/200:25:212
134491480,1getstats7826-1kworker/3:0H23:40:193
1110299485,5cyclictest33-21ksoftirqd/220:10:152
1110299483,5cyclictest33-21ksoftirqd/221:00:002
11102994824,8cyclictest33-21ksoftirqd/223:25:272
1110299476,6cyclictest31213-21apt-get23:15:002
1110299476,5cyclictest33-21ksoftirqd/222:20:122
1110299475,8cyclictest33-21ksoftirqd/223:15:272
1110299475,6cyclictest33-21ksoftirqd/219:25:142
1110299475,5cyclictest33-21ksoftirqd/222:15:132
1110299475,5cyclictest33-21ksoftirqd/220:30:282
1110299475,5cyclictest33-21ksoftirqd/200:20:162
1110299475,5cyclictest33-21ksoftirqd/200:15:182
1110299475,2cyclictest0-21swapper/219:55:222
1110299472,6cyclictest33-21ksoftirqd/222:40:222
1110299472,6cyclictest33-21ksoftirqd/219:30:142
11102994724,8cyclictest33-21ksoftirqd/221:55:252
1110299465,9cyclictest33-21ksoftirqd/223:45:002
1110299465,7cyclictest33-21ksoftirqd/221:45:142
1110299465,5cyclictest33-21ksoftirqd/221:30:142
1110299465,5cyclictest33-21ksoftirqd/219:20:192
1110299464,5cyclictest11974-21latency_hist22:35:002
1110299463,5cyclictest33-21ksoftirqd/220:35:242
1110299462,7cyclictest33-21ksoftirqd/221:15:212
1110299461,6cyclictest33-21ksoftirqd/219:10:142
1110299461,6cyclictest33-21ksoftirqd/219:10:142
1110299461,10cyclictest33-21ksoftirqd/220:09:112
1110299456,7cyclictest33-21ksoftirqd/223:55:172
1110299456,7cyclictest33-21ksoftirqd/223:00:232
1110299455,8cyclictest33-21ksoftirqd/223:50:142
1110299455,8cyclictest33-21ksoftirqd/223:50:142
1110299453,3cyclictest33-21ksoftirqd/219:50:152
1110299452,6cyclictest33-21ksoftirqd/222:45:132
139391440,0ptp4l401ktimersoftd/323:38:143
1110299445,7cyclictest33-21ksoftirqd/219:40:202
1110299445,7cyclictest33-21ksoftirqd/219:40:192
1110299445,5cyclictest33-21ksoftirqd/221:50:142
1110299443,9cyclictest33-21ksoftirqd/200:35:222
1110299435,7cyclictest33-21ksoftirqd/223:35:272
1110299435,7cyclictest33-21ksoftirqd/219:45:142
1110299434,5cyclictest33-21ksoftirqd/220:20:192
139391420,0ptp4l401ktimersoftd/322:26:373
139391420,0ptp4l401ktimersoftd/321:00:263
1110299426,8cyclictest33-21ksoftirqd/222:05:002
1110299424,5cyclictest33-21ksoftirqd/222:10:202
1110299424,5cyclictest33-21ksoftirqd/220:45:172
1110299424,5cyclictest33-21ksoftirqd/220:45:172
1110299421,7cyclictest33-21ksoftirqd/222:25:212
1110299420,6cyclictest33-21ksoftirqd/219:40:002
139391410,0ptp4l401ktimersoftd/320:59:003
139391410,0ptp4l401ktimersoftd/320:15:133
139391410,0ptp4l401ktimersoftd/300:11:183
1110299414,9cyclictest33-21ksoftirqd/220:15:242
11101994136,3cyclictest25-21ksoftirqd/122:20:001
139391400,0ptp4l401ktimersoftd/321:31:103
11101994036,3cyclictest25-21ksoftirqd/120:55:011
11101994035,3cyclictest25-21ksoftirqd/123:00:001
11101994035,3cyclictest25-21ksoftirqd/100:00:001
11101994034,3cyclictest25-21ksoftirqd/122:05:251
139391390,2ptp4l401ktimersoftd/319:30:463
11101993832,4cyclictest25-21ksoftirqd/123:22:221
11101993832,3cyclictest25-21ksoftirqd/123:25:031
11103993732,3cyclictest41-21ksoftirqd/322:01:123
11101993733,3cyclictest25-21ksoftirqd/123:00:161
11101993733,3cyclictest25-21ksoftirqd/121:20:191
11101993732,3cyclictest25-21ksoftirqd/119:25:001
11101993731,4cyclictest25-21ksoftirqd/100:12:091
11103993630,4cyclictest41-21ksoftirqd/321:53:593
11101993631,3cyclictest25-21ksoftirqd/122:00:001
11101993631,3cyclictest25-21ksoftirqd/120:45:001
11101993630,4cyclictest25-21ksoftirqd/122:42:271
11101993629,5cyclictest25-21ksoftirqd/120:37:181
11101993629,5cyclictest25-21ksoftirqd/120:35:001
139391350,0ptp4l401ktimersoftd/320:44:113
11103993529,4cyclictest41-21ksoftirqd/320:33:113
11103993529,4cyclictest41-21ksoftirqd/320:26:533
11103993529,3cyclictest41-21ksoftirqd/320:45:213
11103993529,3cyclictest41-21ksoftirqd/320:45:213
11101993532,2cyclictest25-21ksoftirqd/122:50:141
11101993531,3cyclictest25-21ksoftirqd/123:35:141
11101993531,2cyclictest25-21ksoftirqd/123:15:001
11101993530,3cyclictest25-21ksoftirqd/123:42:281
11101993530,3cyclictest25-21ksoftirqd/120:45:161
11101993530,3cyclictest25-21ksoftirqd/120:45:161
11101993529,4cyclictest25-21ksoftirqd/123:48:261
11101993529,4cyclictest25-21ksoftirqd/123:08:181
11101993529,4cyclictest25-21ksoftirqd/120:20:571
11101993529,4cyclictest25-21ksoftirqd/120:10:391
11101993529,4cyclictest25-21ksoftirqd/120:00:561
11101993529,4cyclictest25-21ksoftirqd/119:45:431
11101993529,4cyclictest25-21ksoftirqd/119:39:021
11100993531,2cyclictest9-21ksoftirqd/023:00:000
11100993530,3cyclictest11575-21cron20:17:000
11100993529,4cyclictest9-21ksoftirqd/022:33:440
11100993529,4cyclictest9-21ksoftirqd/022:17:580
11100993529,4cyclictest9-21ksoftirqd/019:15:380
11103993430,3cyclictest41-21ksoftirqd/300:31:343
11103993429,3cyclictest41-21ksoftirqd/323:10:113
11103993429,3cyclictest41-21ksoftirqd/322:24:163
11103993428,4cyclictest41-21ksoftirqd/323:46:283
11103993428,4cyclictest41-21ksoftirqd/319:16:493
11103993428,4cyclictest41-21ksoftirqd/300:24:233
11101993430,3cyclictest25-21ksoftirqd/121:09:211
11101993430,3cyclictest25-21ksoftirqd/100:20:001
11101993430,2cyclictest25-21ksoftirqd/121:15:001
11101993429,3cyclictest25-21ksoftirqd/122:24:361
11101993429,3cyclictest25-21ksoftirqd/121:40:141
11101993429,3cyclictest25-21ksoftirqd/119:35:011
11101993428,4cyclictest25-21ksoftirqd/121:25:411
11101993428,4cyclictest25-21ksoftirqd/119:15:001
11101993428,4cyclictest25-21ksoftirqd/119:15:001
11101993428,4cyclictest25-21ksoftirqd/100:25:111
11101993427,5cyclictest25-21ksoftirqd/122:10:351
11100993429,3cyclictest9-21ksoftirqd/021:51:100
11100993428,4cyclictest9-21ksoftirqd/023:28:550
11100993428,4cyclictest9-21ksoftirqd/021:31:330
11100993428,4cyclictest9-21ksoftirqd/020:39:020
11100993428,4cyclictest9-21ksoftirqd/000:32:590
11100993428,4cyclictest9-21ksoftirqd/000:26:340
1110099340,32cyclictest8803-21latency_hist23:35:000
139391330,0ptp4l401ktimersoftd/323:05:273
11103993328,3cyclictest41-21ksoftirqd/321:56:273
11103993328,3cyclictest41-21ksoftirqd/321:15:243
11103993328,3cyclictest41-21ksoftirqd/320:20:513
11103993327,4cyclictest41-21ksoftirqd/323:34:283
11103993327,4cyclictest41-21ksoftirqd/322:31:583
11101993329,3cyclictest25-21ksoftirqd/100:30:211
11101993329,2cyclictest25-21ksoftirqd/119:40:261
11101993329,2cyclictest25-21ksoftirqd/119:40:251
11101993328,3cyclictest25-21ksoftirqd/122:05:001
11101993328,3cyclictest25-21ksoftirqd/121:18:531
11101993327,4cyclictest25-21ksoftirqd/122:46:001
11101993327,4cyclictest25-21ksoftirqd/121:01:331
11101993327,4cyclictest25-21ksoftirqd/119:54:221
11101993327,4cyclictest25-21ksoftirqd/119:28:591
11101993327,3cyclictest23986-21irqrtprio21:50:191
11100993328,3cyclictest9-21ksoftirqd/000:15:110
11100993327,4cyclictest9-21ksoftirqd/023:51:460
11100993327,4cyclictest9-21ksoftirqd/023:51:460
11100993327,4cyclictest9-21ksoftirqd/023:49:210
11100993327,4cyclictest9-21ksoftirqd/021:38:310
11100993327,4cyclictest9-21ksoftirqd/020:53:460
11100993327,4cyclictest9-21ksoftirqd/020:34:500
11100993327,4cyclictest9-21ksoftirqd/019:12:370
11100993327,4cyclictest9-21ksoftirqd/019:12:370
11100993327,4cyclictest9-21ksoftirqd/000:06:130
139391320,0ptp4l401ktimersoftd/323:59:463
11103993227,3cyclictest41-21ksoftirqd/323:20:003
11103993227,3cyclictest41-21ksoftirqd/300:17:203
11103993226,4cyclictest41-21ksoftirqd/321:11:583
11103993226,4cyclictest41-21ksoftirqd/319:54:043
11103993226,4cyclictest41-21ksoftirqd/300:36:343
11101993228,2cyclictest25-21ksoftirqd/120:20:011
11101993227,3cyclictest25-21ksoftirqd/123:30:111
11101993227,3cyclictest25-21ksoftirqd/123:15:201
11101993227,3cyclictest25-21ksoftirqd/122:30:131
11101993227,3cyclictest25-21ksoftirqd/121:46:091
11101993226,4cyclictest25-21ksoftirqd/123:55:001
11101993226,4cyclictest25-21ksoftirqd/123:55:001
11101993226,4cyclictest25-21ksoftirqd/120:57:081
11101993226,3cyclictest25-21ksoftirqd/119:15:141
11100993227,3cyclictest7376-21ls20:10:140
11100993226,4cyclictest9-21ksoftirqd/023:24:060
11100993226,4cyclictest9-21ksoftirqd/023:18:120
11100993226,4cyclictest9-21ksoftirqd/022:47:150
11100993226,4cyclictest9-21ksoftirqd/020:24:090
11100993226,4cyclictest9-21ksoftirqd/020:00:560
139391310,0ptp4l401ktimersoftd/323:24:183
139391310,0ptp4l401ktimersoftd/323:03:033
139391310,0ptp4l401ktimersoftd/322:05:183
11103993126,3cyclictest41-21ksoftirqd/322:10:413
11103993126,3cyclictest41-21ksoftirqd/320:54:533
11103993125,4cyclictest41-21ksoftirqd/323:51:333
11103993125,4cyclictest41-21ksoftirqd/323:51:333
11103993125,4cyclictest41-21ksoftirqd/322:15:413
11103993125,4cyclictest41-21ksoftirqd/320:02:103
11103993125,3cyclictest41-21ksoftirqd/300:28:593
11101993127,3cyclictest25-21ksoftirqd/119:59:591
11101993126,3cyclictest25-21ksoftirqd/120:30:001
11101993126,3cyclictest25-21ksoftirqd/120:05:201
11101993126,3cyclictest25-21ksoftirqd/100:05:011
11101993125,4cyclictest25-21ksoftirqd/121:39:361
11100993126,3cyclictest9-21ksoftirqd/022:25:120
11100993126,3cyclictest9-21ksoftirqd/022:22:590
11100993125,4cyclictest9-21ksoftirqd/020:59:200
11100993125,4cyclictest9-21ksoftirqd/019:50:120
11100993125,3cyclictest9-21ksoftirqd/021:40:110
139391300,0ptp4l401ktimersoftd/322:46:483
139391300,0ptp4l401ktimersoftd/322:37:063
139391300,0ptp4l401ktimersoftd/321:05:543
11103993025,3cyclictest41-21ksoftirqd/321:28:083
11103993025,3cyclictest41-21ksoftirqd/319:29:593
11103993024,4cyclictest41-21ksoftirqd/322:57:493
11103993024,4cyclictest41-21ksoftirqd/319:46:253
11100993025,3cyclictest9-21ksoftirqd/022:13:250
11100993025,3cyclictest9-21ksoftirqd/019:20:120
11100993024,4cyclictest9-21ksoftirqd/022:52:210
11100993024,4cyclictest9-21ksoftirqd/022:05:350
11100993024,4cyclictest9-21ksoftirqd/021:49:550
139391290,0ptp4l401ktimersoftd/321:45:333
139391290,0ptp4l401ktimersoftd/320:36:003
139391290,0ptp4l401ktimersoftd/319:21:393
11103992923,4cyclictest41-21ksoftirqd/319:39:123
11103992923,4cyclictest41-21ksoftirqd/300:00:083
11101992926,2cyclictest25-21ksoftirqd/122:40:011
11101992925,3cyclictest25-21ksoftirqd/100:35:191
11101992924,3cyclictest25-21ksoftirqd/122:25:121
11101992923,4cyclictest25-21ksoftirqd/100:21:001
11101992923,4cyclictest25-21ksoftirqd/100:07:361
11100992925,3cyclictest9-21ksoftirqd/019:44:510
11100992925,3cyclictest9-21ksoftirqd/019:44:510
11100992924,3cyclictest9-21ksoftirqd/023:57:400
11100992924,3cyclictest9-21ksoftirqd/023:43:080
11100992924,3cyclictest9-21ksoftirqd/023:11:040
11100992924,3cyclictest9-21ksoftirqd/021:20:170
11100992924,3cyclictest9-21ksoftirqd/020:27:390
11100992924,3cyclictest9-21ksoftirqd/020:09:350
11100992924,3cyclictest9-21ksoftirqd/019:57:060
11100992924,3cyclictest9-21ksoftirqd/000:12:120
11100992923,4cyclictest9-21ksoftirqd/023:35:570
11100992923,4cyclictest9-21ksoftirqd/023:03:320
11100992923,4cyclictest9-21ksoftirqd/021:00:040
139391280,0ptp4l401ktimersoftd/323:28:563
11100992823,3cyclictest9-21ksoftirqd/022:41:420
11100992823,3cyclictest9-21ksoftirqd/022:40:010
11100992823,3cyclictest9-21ksoftirqd/019:48:480
11100992822,4cyclictest9-21ksoftirqd/021:14:250
11103992722,3cyclictest41-21ksoftirqd/300:07:333
11103992721,4cyclictest41-21ksoftirqd/322:52:003
11103992721,4cyclictest41-21ksoftirqd/319:59:533
11100992722,3cyclictest9-21ksoftirqd/021:26:350
11100992721,4cyclictest9-21ksoftirqd/000:21:070
11100992721,4cyclictest9-21ksoftirqd/000:02:370
139391260,0ptp4l401ktimersoftd/321:40:203
11103992621,3cyclictest41-21ksoftirqd/322:41:323
11100992621,3cyclictest9-21ksoftirqd/020:48:260
11100992621,3cyclictest9-21ksoftirqd/020:48:260
11100992620,4cyclictest9-21ksoftirqd/021:58:210
11100992620,4cyclictest9-21ksoftirqd/000:37:230
139391250,0ptp4l401ktimersoftd/319:40:133
139391250,0ptp4l401ktimersoftd/319:40:123
139391240,0ptp4l401ktimersoftd/321:35:303
139391240,0ptp4l401ktimersoftd/321:20:213
11100992318,3cyclictest9-21ksoftirqd/021:05:470
11100992317,4cyclictest9-21ksoftirqd/021:15:280
11100992317,4cyclictest9-21ksoftirqd/019:35:590
11100992216,4cyclictest9-21ksoftirqd/020:40:420
11100992113,5cyclictest19415-21tail19:25:220
1110099201,5cyclictest22822-21latency_hist19:34:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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