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2026-08-07 - 13:45
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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 all highest latencies:
System rackdslot4.osadl.org (updated Fri Aug 07, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591220153,23phc2sys0-21swapper/319:05:303
301872203170,22sleep00-21swapper/019:06:400
302422202168,22sleep20-21swapper/219:07:192
301882201168,22sleep10-21swapper/119:06:411
3126821810,6sleep33089399cyclictest21:20:183
1652821550,7sleep03089099cyclictest00:05:190
154162760,2sleep20-21swapper/200:05:012
269952610,2sleep00-21swapper/021:10:200
213042600,2sleep20-21swapper/200:15:162
189952580,5sleep233-21ksoftirqd/219:50:142
214302570,5sleep321436-21irqrtprio23:10:183
214302570,5sleep321436-21irqrtprio23:10:183
138491550,1ptp4l401ktimersoftd/321:30:273
3089199470,45cyclictest0-21swapper/121:30:231
30890994740,4cyclictest20306-21cron23:10:000
3089199450,43cyclictest0-21swapper/119:40:141
3089199450,43cyclictest0-21swapper/119:40:141
138491430,0ptp4l401ktimersoftd/300:07:363
30892994237,3cyclictest33-21ksoftirqd/222:00:002
138491420,0ptp4l401ktimersoftd/319:36:173
30893994135,3cyclictest41-21ksoftirqd/300:40:013
30893994128,9cyclictest41-21ksoftirqd/321:50:283
30892994136,3cyclictest13370-21awk19:40:002
138491410,1ptp4l401ktimersoftd/300:22:493
138491410,1ptp4l401ktimersoftd/300:15:553
138491410,0ptp4l401ktimersoftd/319:34:013
138491400,0ptp4l401ktimersoftd/323:35:003
138491400,0ptp4l401ktimersoftd/321:55:203
30893993933,3cyclictest41-21ksoftirqd/300:05:013
3089299390,38cyclictest0-21swapper/223:55:332
3089199391,35cyclictest11549-21diskstats20:40:131
30890993933,3cyclictest8072-21sh21:40:000
30893993833,3cyclictest41-21ksoftirqd/322:30:003
30893993833,3cyclictest41-21ksoftirqd/319:55:003
3089299380,36cyclictest0-21swapper/220:40:032
3089299380,2cyclictest0-21swapper/223:30:232
30891993810,26cyclictest0-21swapper/122:41:031
30890993833,3cyclictest9-21ksoftirqd/020:25:000
30890993832,3cyclictest9-21ksoftirqd/020:30:000
138491380,1ptp4l401ktimersoftd/321:35:133
30893993731,3cyclictest41-21ksoftirqd/320:09:593
30893993730,4cyclictest41-21ksoftirqd/323:47:053
30893993725,9cyclictest41-21ksoftirqd/319:25:263
3089299370,36cyclictest0-21swapper/221:10:232
3089299370,36cyclictest0-21swapper/219:30:232
30891993731,4cyclictest25-21ksoftirqd/123:48:591
3089099373,3cyclictest121rcu_preempt22:15:140
30890993732,3cyclictest9-21ksoftirqd/021:40:150
30890993732,3cyclictest9-21ksoftirqd/019:20:010
30890993731,3cyclictest9-21ksoftirqd/021:25:130
30890993731,3cyclictest9-21ksoftirqd/019:34:590
138491370,1ptp4l401ktimersoftd/320:39:203
30893993631,3cyclictest41-21ksoftirqd/322:50:003
30893993631,3cyclictest41-21ksoftirqd/319:20:003
30893993630,4cyclictest41-21ksoftirqd/323:30:403
30893993630,4cyclictest41-21ksoftirqd/320:19:203
30893993630,3cyclictest41-21ksoftirqd/323:55:213
30893993630,3cyclictest41-21ksoftirqd/322:55:003
30893993629,4cyclictest41-21ksoftirqd/320:00:103
30892993629,5cyclictest33-21ksoftirqd/200:27:202
30892993629,5cyclictest33-21ksoftirqd/200:27:202
30892993629,4cyclictest33-21ksoftirqd/223:18:112
30892993629,4cyclictest33-21ksoftirqd/222:16:132
3089299360,35cyclictest0-21swapper/223:40:332
3089199367,27cyclictest0-21swapper/121:55:331
30891993630,4cyclictest25-21ksoftirqd/122:51:261
30891993630,4cyclictest25-21ksoftirqd/121:00:461
30891993630,4cyclictest25-21ksoftirqd/120:12:561
30891993629,4cyclictest25-21ksoftirqd/120:45:011
30890993631,3cyclictest9-21ksoftirqd/023:20:260
30890993631,3cyclictest9-21ksoftirqd/019:25:010
30890993629,5cyclictest9-21ksoftirqd/000:16:260
3089099361,2cyclictest121rcu_preempt23:33:030
30893993530,3cyclictest41-21ksoftirqd/323:50:333
30893993530,3cyclictest41-21ksoftirqd/322:05:003
30893993530,3cyclictest41-21ksoftirqd/320:00:003
30893993530,3cyclictest41-21ksoftirqd/319:50:003
30893993529,3cyclictest41-21ksoftirqd/322:40:213
30892993530,3cyclictest33-21ksoftirqd/200:20:122
30892993529,4cyclictest33-21ksoftirqd/221:23:422
30892993529,4cyclictest33-21ksoftirqd/219:56:292
30892993529,4cyclictest33-21ksoftirqd/219:48:462
30892993528,4cyclictest33-21ksoftirqd/222:38:562
30892993528,4cyclictest33-21ksoftirqd/221:30:242
30892993528,4cyclictest33-21ksoftirqd/220:37:322
30892993527,5cyclictest33-21ksoftirqd/223:54:142
3089199356,27cyclictest0-21swapper/119:51:331
30891993530,3cyclictest25-21ksoftirqd/122:32:011
30891993530,3cyclictest25-21ksoftirqd/122:32:011
30891993530,3cyclictest25-21ksoftirqd/100:09:591
30891993529,4cyclictest25-21ksoftirqd/122:49:301
30891993529,4cyclictest25-21ksoftirqd/122:19:411
30891993529,4cyclictest25-21ksoftirqd/120:21:431
30891993529,4cyclictest25-21ksoftirqd/100:02:591
30891993513,3cyclictest21350-21grep22:05:151
30890993530,3cyclictest9-21ksoftirqd/000:35:010
30890993530,3cyclictest9-21ksoftirqd/000:25:120
30890993530,3cyclictest9-21ksoftirqd/000:25:120
30890993529,4cyclictest9-21ksoftirqd/022:47:400
30890993529,4cyclictest9-21ksoftirqd/022:29:270
30890993529,4cyclictest9-21ksoftirqd/019:47:480
30890993529,4cyclictest9-21ksoftirqd/000:22:400
30890993528,4cyclictest9-21ksoftirqd/020:55:280
50798340,2rtkit-daemon0-21swapper/123:22:101
30893993429,3cyclictest41-21ksoftirqd/323:05:133
30893993429,3cyclictest41-21ksoftirqd/323:00:153
30893993428,4cyclictest41-21ksoftirqd/320:21:003
30893993424,9cyclictest41-21ksoftirqd/319:40:273
30893993424,9cyclictest41-21ksoftirqd/319:40:273
30892993429,3cyclictest33-21ksoftirqd/223:22:212
30892993429,3cyclictest33-21ksoftirqd/221:16:352
30892993428,4cyclictest33-21ksoftirqd/222:57:372
30892993428,4cyclictest33-21ksoftirqd/221:02:362
30892993428,4cyclictest33-21ksoftirqd/220:29:342
3089199348,25cyclictest23081-21kworker/1:200:21:041
3089199346,26cyclictest0-21swapper/121:45:031
3089199345,27cyclictest0-21swapper/123:30:431
30891993429,3cyclictest25-21ksoftirqd/123:40:121
30891993428,4cyclictest25-21ksoftirqd/121:44:271
30891993427,4cyclictest25-21ksoftirqd/120:18:091
30891993414,4cyclictest27633-21sendmail_mailst20:05:251
30891993413,3cyclictest13982-21sed21:50:201
30890993429,3cyclictest9-21ksoftirqd/023:40:000
30890993429,3cyclictest9-21ksoftirqd/022:55:210
30890993428,3cyclictest9-21ksoftirqd/021:10:010
30890993427,5cyclictest9-21ksoftirqd/000:36:320
30890993427,4cyclictest9-21ksoftirqd/023:55:140
30890993427,4cyclictest9-21ksoftirqd/023:53:120
30890993427,4cyclictest9-21ksoftirqd/019:27:420
30893993329,3cyclictest41-21ksoftirqd/322:20:153
30893993329,2cyclictest41-21ksoftirqd/322:30:143
30893993329,2cyclictest41-21ksoftirqd/322:30:143
30893993328,3cyclictest41-21ksoftirqd/322:35:183
30893993328,3cyclictest41-21ksoftirqd/321:02:353
30893993328,3cyclictest41-21ksoftirqd/320:35:013
30893993327,4cyclictest41-21ksoftirqd/322:18:153
30893993327,4cyclictest41-21ksoftirqd/300:33:513
30893993326,4cyclictest41-21ksoftirqd/320:48:123
30892993329,2cyclictest33-21ksoftirqd/222:28:352
30892993328,3cyclictest33-21ksoftirqd/223:00:182
30892993328,3cyclictest33-21ksoftirqd/221:35:112
30892993328,3cyclictest33-21ksoftirqd/220:58:152
30892993328,3cyclictest33-21ksoftirqd/219:41:452
30892993328,3cyclictest33-21ksoftirqd/219:41:452
30892993327,4cyclictest33-21ksoftirqd/223:11:572
30892993327,4cyclictest33-21ksoftirqd/223:11:572
30892993327,4cyclictest33-21ksoftirqd/223:09:592
30892993327,4cyclictest33-21ksoftirqd/222:34:312
30892993327,4cyclictest33-21ksoftirqd/222:34:312
30892993327,4cyclictest33-21ksoftirqd/222:14:372
30892993327,3cyclictest33-21ksoftirqd/223:26:282
30892993327,3cyclictest33-21ksoftirqd/220:45:192
30892993326,4cyclictest33-21ksoftirqd/221:30:002
30892993326,4cyclictest33-21ksoftirqd/221:05:402
30891993328,3cyclictest25-21ksoftirqd/123:56:331
30891993328,3cyclictest25-21ksoftirqd/100:27:581
30891993328,3cyclictest25-21ksoftirqd/100:27:581
30891993327,4cyclictest25-21ksoftirqd/122:24:391
30891993327,4cyclictest25-21ksoftirqd/122:04:091
30891993326,4cyclictest25-21ksoftirqd/120:34:071
30890993328,3cyclictest9-21ksoftirqd/022:53:420
30890993328,3cyclictest9-21ksoftirqd/022:10:000
30890993328,3cyclictest9-21ksoftirqd/020:05:200
30890993328,3cyclictest9-21ksoftirqd/019:55:000
30890993328,3cyclictest9-21ksoftirqd/019:15:010
30890993328,3cyclictest9-21ksoftirqd/019:15:010
30890993328,3cyclictest9-21ksoftirqd/000:15:000
30890993327,4cyclictest9-21ksoftirqd/023:43:210
30890993327,4cyclictest9-21ksoftirqd/023:10:270
30890993327,4cyclictest9-21ksoftirqd/023:10:270
30890993327,4cyclictest9-21ksoftirqd/022:41:190
30890993327,4cyclictest9-21ksoftirqd/020:01:130
30890993326,4cyclictest9-21ksoftirqd/022:39:220
30890993326,4cyclictest9-21ksoftirqd/019:39:210
30893993229,2cyclictest41-21ksoftirqd/323:25:003
30893993229,2cyclictest41-21ksoftirqd/321:10:003
30893993228,3cyclictest41-21ksoftirqd/321:40:203
30893993228,3cyclictest41-21ksoftirqd/319:13:373
30893993228,3cyclictest41-21ksoftirqd/319:13:373
30893993227,2cyclictest41-21ksoftirqd/300:10:173
30893993226,4cyclictest41-21ksoftirqd/322:55:123
30893993225,4cyclictest41-21ksoftirqd/323:42:113
30893993225,4cyclictest41-21ksoftirqd/321:27:283
30892993227,3cyclictest33-21ksoftirqd/222:04:392
30892993227,3cyclictest33-21ksoftirqd/220:34:012
30892993226,4cyclictest33-21ksoftirqd/222:44:212
30892993226,4cyclictest33-21ksoftirqd/222:20:422
30892993226,4cyclictest33-21ksoftirqd/219:26:472
30892993226,4cyclictest33-21ksoftirqd/219:16:092
30892993226,3cyclictest33-21ksoftirqd/223:37:572
3089299321,2cyclictest0-21swapper/220:50:242
30891993227,3cyclictest25-21ksoftirqd/100:13:461
30891993226,4cyclictest25-21ksoftirqd/121:18:521
30891993226,4cyclictest25-21ksoftirqd/100:15:471
30891993226,3cyclictest25-21ksoftirqd/123:25:121
30890993226,4cyclictest9-21ksoftirqd/023:17:570
30890993226,4cyclictest9-21ksoftirqd/022:30:400
30890993226,4cyclictest9-21ksoftirqd/022:30:390
30890993226,4cyclictest9-21ksoftirqd/021:30:020
30890993226,4cyclictest9-21ksoftirqd/020:44:000
30890993225,4cyclictest9-21ksoftirqd/023:48:060
138491320,10ptp4l401ktimersoftd/319:20:353
30893993126,3cyclictest41-21ksoftirqd/322:11:063
30893993125,4cyclictest41-21ksoftirqd/323:15:473
30893993125,4cyclictest41-21ksoftirqd/321:47:023
30893993125,4cyclictest41-21ksoftirqd/300:26:483
30893993125,4cyclictest41-21ksoftirqd/300:26:483
3089299313,2cyclictest121rcu_preempt00:38:232
30892993127,3cyclictest33-21ksoftirqd/221:45:022
30892993127,2cyclictest33-21ksoftirqd/222:45:192
30892993126,3cyclictest33-21ksoftirqd/219:23:582
30892993125,4cyclictest33-21ksoftirqd/220:14:182
30892993125,4cyclictest33-21ksoftirqd/220:08:332
30892993125,4cyclictest33-21ksoftirqd/200:02:002
30892993125,3cyclictest33-21ksoftirqd/200:34:172
30891993126,3cyclictest25-21ksoftirqd/119:30:111
30891993126,3cyclictest25-21ksoftirqd/100:30:141
30891993125,4cyclictest25-21ksoftirqd/123:04:581
30891993125,4cyclictest25-21ksoftirqd/119:21:371
30891993125,3cyclictest25-21ksoftirqd/120:00:441
30891993124,4cyclictest25-21ksoftirqd/123:37:161
30891993112,3cyclictest18921-21forks20:55:141
30890993127,3cyclictest9-21ksoftirqd/019:55:190
30890993126,3cyclictest9-21ksoftirqd/021:51:240
30890993125,4cyclictest9-21ksoftirqd/023:26:120
30890993125,4cyclictest9-21ksoftirqd/020:11:320
30890993125,3cyclictest9-21ksoftirqd/021:45:150
30890993125,3cyclictest9-21ksoftirqd/021:00:190
30890993125,3cyclictest9-21ksoftirqd/020:16:370
30893993026,2cyclictest41-21ksoftirqd/320:55:173
30893993025,3cyclictest41-21ksoftirqd/322:05:133
30893993025,3cyclictest41-21ksoftirqd/320:10:063
30893993023,4cyclictest41-21ksoftirqd/321:16:213
30892993025,3cyclictest33-21ksoftirqd/221:45:182
30892993025,3cyclictest33-21ksoftirqd/220:00:132
30892993024,4cyclictest33-21ksoftirqd/223:47:122
30891993025,3cyclictest25-21ksoftirqd/123:50:261
30891993025,3cyclictest25-21ksoftirqd/121:05:111
30891993025,3cyclictest25-21ksoftirqd/119:58:571
30891993025,3cyclictest25-21ksoftirqd/119:37:171
30891993024,4cyclictest25-21ksoftirqd/123:16:101
30891993024,3cyclictest25-21ksoftirqd/122:10:121
30891993023,5cyclictest25-21ksoftirqd/121:38:251
30890993025,3cyclictest9-21ksoftirqd/020:48:360
30890993025,3cyclictest9-21ksoftirqd/000:02:500
30890993024,4cyclictest9-21ksoftirqd/021:23:160
30890993024,3cyclictest9-21ksoftirqd/022:15:000
30890993024,3cyclictest9-21ksoftirqd/022:00:430
138491300,0ptp4l401ktimersoftd/320:26:053
30893992925,2cyclictest41-21ksoftirqd/320:50:113
30893992925,2cyclictest41-21ksoftirqd/320:40:113
30893992923,4cyclictest41-21ksoftirqd/323:26:153
30893992923,4cyclictest41-21ksoftirqd/321:10:113
30892992925,3cyclictest33-21ksoftirqd/220:20:182
30892992925,2cyclictest33-21ksoftirqd/219:15:012
30892992925,2cyclictest33-21ksoftirqd/219:15:012
30892992924,3cyclictest33-21ksoftirqd/222:53:062
30892992919,9cyclictest33-21ksoftirqd/200:10:262
30891992924,3cyclictest25-21ksoftirqd/121:29:381
30891992923,4cyclictest25-21ksoftirqd/122:59:091
30891992923,4cyclictest25-21ksoftirqd/100:38:021
30890992924,3cyclictest9-21ksoftirqd/023:01:200
30890992923,3cyclictest9-21ksoftirqd/021:19:220
30890992923,3cyclictest9-21ksoftirqd/020:30:160
30892992823,3cyclictest33-21ksoftirqd/220:15:482
30892992818,9cyclictest33-21ksoftirqd/222:05:212
30891992823,3cyclictest25-21ksoftirqd/120:28:171
30891992822,4cyclictest25-21ksoftirqd/122:38:031
30891992822,4cyclictest25-21ksoftirqd/119:19:081
30890992824,3cyclictest9-21ksoftirqd/019:45:000
30890992824,3cyclictest9-21ksoftirqd/019:45:000
30890992824,2cyclictest9-21ksoftirqd/021:57:290
30890992823,3cyclictest9-21ksoftirqd/022:25:000
30892992722,3cyclictest33-21ksoftirqd/221:51:392
30891992722,3cyclictest25-21ksoftirqd/123:11:311
30891992722,3cyclictest25-21ksoftirqd/123:11:311
30891992722,3cyclictest25-21ksoftirqd/121:10:291
30891992722,3cyclictest25-21ksoftirqd/120:51:311
30891992721,4cyclictest25-21ksoftirqd/122:27:111
30891992620,4cyclictest25-21ksoftirqd/119:28:591
30890992622,3cyclictest9-21ksoftirqd/020:50:120
30891992520,3cyclictest25-21ksoftirqd/119:10:141
30891992520,3cyclictest25-21ksoftirqd/119:10:141
50798240,8rtkit-daemon0-21swapper/121:20:141
30890992419,3cyclictest9-21ksoftirqd/020:40:000
30891992318,3cyclictest25-21ksoftirqd/123:09:171
30891992317,4cyclictest25-21ksoftirqd/120:40:011
30891992116,3cyclictest25-21ksoftirqd/119:46:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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