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2026-07-18 - 07:39
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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 rackdslot2.osadl.org (updated Sat Jul 18, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120962208170,26sleep20-21swapper/219:06:592
119882208175,22sleep10-21swapper/119:05:431
139591206173,22phc2sys0-21swapper/319:09:013
123152204171,22sleep00-21swapper/019:09:510
275721380,6sleep01278899cyclictest21:00:260
1279299710,37cyclictest8980-21ls22:25:012
1279299701,26cyclictest30312-21df_abs00:15:152
1279299680,27cyclictest1374-21df_abs21:00:142
1279299660,21cyclictest31577-21cut20:55:202
12793996529,5cyclictest41-21ksoftirqd/321:00:003
1279299650,23cyclictest16534-21cstates22:40:132
12793996432,7cyclictest41-21ksoftirqd/320:30:003
12793996432,4cyclictest41-21ksoftirqd/322:15:263
1279299640,20cyclictest10094-21cut22:25:192
12793996330,5cyclictest41-21ksoftirqd/322:45:153
12793996329,4cyclictest41-21ksoftirqd/323:40:003
12793996328,4cyclictest41-21ksoftirqd/319:20:003
1279299631,20cyclictest12911-21latency_hist23:40:012
1279299631,18cyclictest25163-21unixbench_multi22:55:282
1279299630,23cyclictest25933-21sed21:50:212
1279299630,22cyclictest28471-21date20:50:002
1279299630,22cyclictest17857-21processes20:25:242
1279299630,20cyclictest22991-21cat20:35:262
139291620,1ptp4l12039-21kworker/3:221:40:163
12793996231,4cyclictest41-21ksoftirqd/320:40:243
12793996231,4cyclictest41-21ksoftirqd/320:40:243
1279299621,23cyclictest9863-21awk23:30:272
1279299621,22cyclictest3660-21timerwakeupswit22:10:262
1279299621,21cyclictest24166-21grep21:45:272
1279299621,20cyclictest6817-21cut21:10:192
1279299620,22cyclictest13417-21sed20:15:272
1279299620,18cyclictest11931-21ptp4l21:20:232
12793996128,4cyclictest41-21ksoftirqd/323:05:223
12793996122,8cyclictest41-21ksoftirqd/323:10:253
12793996120,8cyclictest41-21ksoftirqd/319:50:243
1279299612,27cyclictest22332-21date19:30:012
12792996110,19cyclictest13279-21df_abs23:40:142
12793996028,4cyclictest41-21ksoftirqd/321:15:163
12793996028,4cyclictest41-21ksoftirqd/320:10:003
12793996025,4cyclictest41-21ksoftirqd/322:05:013
12793996025,4cyclictest41-21ksoftirqd/300:15:003
12793996025,4cyclictest41-21ksoftirqd/300:15:003
12793996024,4cyclictest41-21ksoftirqd/323:30:003
1279299601,29cyclictest696-21date23:15:002
1279299601,28cyclictest5760-21date21:10:012
1279299601,20cyclictest1884-21date22:10:002
1279299600,26cyclictest20504-21df_abs21:40:152
12793995928,3cyclictest41-21ksoftirqd/321:30:193
12793995927,8cyclictest41-21ksoftirqd/323:35:013
12793995923,4cyclictest41-21ksoftirqd/321:25:003
12793995829,3cyclictest41-21ksoftirqd/321:10:273
12793995829,3cyclictest41-21ksoftirqd/320:10:143
12793995828,4cyclictest41-21ksoftirqd/322:10:163
12793995827,3cyclictest41-21ksoftirqd/322:40:233
12793995826,7cyclictest41-21ksoftirqd/323:55:243
12793995826,4cyclictest41-21ksoftirqd/300:25:013
12793995825,4cyclictest41-21ksoftirqd/321:10:003
12793995825,10cyclictest41-21ksoftirqd/300:25:253
12793995824,7cyclictest41-21ksoftirqd/321:00:263
12793995824,7cyclictest41-21ksoftirqd/320:00:003
12793995821,8cyclictest41-21ksoftirqd/320:35:163
1279299580,21cyclictest2614-21expr19:55:152
1279299580,20cyclictest22593-21cat22:50:252
139291570,1ptp4l401ktimersoftd/322:06:523
12793995727,4cyclictest41-21ksoftirqd/319:25:253
12793995727,3cyclictest41-21ksoftirqd/323:20:193
12793995726,3cyclictest41-21ksoftirqd/321:45:213
12793995724,8cyclictest41-21ksoftirqd/319:40:003
12793995723,4cyclictest41-21ksoftirqd/321:30:013
12793995722,8cyclictest41-21ksoftirqd/319:10:153
12793995721,4cyclictest41-21ksoftirqd/320:30:243
12793995720,8cyclictest41-21ksoftirqd/322:35:013
1279299570,22cyclictest25394-21awk19:35:152
1279299570,16cyclictest0-21swapper/222:30:242
3522560,5sleep09-21ksoftirqd/020:57:290
12793995630,6cyclictest41-21ksoftirqd/319:20:263
12793995628,3cyclictest41-21ksoftirqd/319:40:123
12793995627,3cyclictest41-21ksoftirqd/322:55:213
12793995626,4cyclictest41-21ksoftirqd/319:45:173
12793995625,4cyclictest41-21ksoftirqd/320:50:223
12793995623,4cyclictest41-21ksoftirqd/323:50:013
1279299560,26cyclictest8706-21timerwakeupswit20:05:272
1279399556,3cyclictest19916-21idleruntime-cro21:40:003
1279399556,3cyclictest19916-21idleruntime-cro21:40:003
12793995526,4cyclictest41-21ksoftirqd/321:55:273
12793995525,4cyclictest41-21ksoftirqd/319:30:123
12793995525,3cyclictest41-21ksoftirqd/323:40:143
12793995521,4cyclictest41-21ksoftirqd/323:15:143
12793995520,4cyclictest41-21ksoftirqd/300:05:193
1279299550,21cyclictest19045-21awk19:20:242
1279299550,16cyclictest0-21swapper/200:20:242
1279399544,3cyclictest121rcu_preempt22:40:003
12793995425,4cyclictest41-21ksoftirqd/300:03:223
12793995423,4cyclictest41-21ksoftirqd/320:15:273
12793995422,8cyclictest41-21ksoftirqd/320:00:133
12793995417,8cyclictest41-21ksoftirqd/321:50:203
12793995322,8cyclictest41-21ksoftirqd/320:45:143
12793995321,11cyclictest41-21ksoftirqd/322:55:003
12793995320,8cyclictest41-21ksoftirqd/323:50:153
12793995320,7cyclictest41-21ksoftirqd/323:05:003
1279299530,20cyclictest31235-21ls19:45:252
1279299530,19cyclictest29740-21processes23:05:232
1279299530,18cyclictest5365-21latency_hist23:25:012
12793995223,7cyclictest41-21ksoftirqd/300:15:173
12793995222,7cyclictest41-21ksoftirqd/320:20:153
12793995220,7cyclictest41-21ksoftirqd/322:25:233
12793995216,9cyclictest41-21ksoftirqd/322:25:013
12793995213,9cyclictest41-21ksoftirqd/300:30:133
12793994921,8cyclictest41-21ksoftirqd/300:35:153
1279299480,22cyclictest16526-21phc2sys-jitter23:45:212
1279299470,19cyclictest2697-21cstates00:25:122
1279299461,17cyclictest27795-21perl21:55:172
12792994310,25cyclictest5009-21cat00:30:132
12792994237,3cyclictest18150-21fschecks_count21:35:152
12792994237,3cyclictest18150-21fschecks_count21:35:152
12792994135,3cyclictest14980-21cron19:15:002
12790994136,3cyclictest25-21ksoftirqd/121:00:011
1279299391,24cyclictest26051-21awk00:05:222
1279299391,17cyclictest0-21swapper/200:35:212
12792993832,4cyclictest33-21ksoftirqd/223:01:002
1279299380,22cyclictest16876-21grep21:30:252
12788993831,4cyclictest9-21ksoftirqd/021:41:590
12792993732,3cyclictest33-21ksoftirqd/223:19:552
12792993731,4cyclictest33-21ksoftirqd/223:29:242
12790993731,4cyclictest25-21ksoftirqd/120:46:511
12790993731,4cyclictest25-21ksoftirqd/119:34:381
12788993731,4cyclictest9-21ksoftirqd/023:35:320
12788993731,4cyclictest9-21ksoftirqd/022:29:360
12788993731,3cyclictest9-21ksoftirqd/022:45:110
41298360,2rtkit-daemon411-21rtkit-daemon23:33:571
12792993631,3cyclictest33-21ksoftirqd/220:50:122
12792993630,4cyclictest33-21ksoftirqd/222:39:292
12790993631,3cyclictest25-21ksoftirqd/122:29:411
12790993631,3cyclictest25-21ksoftirqd/119:35:101
12790993631,3cyclictest25-21ksoftirqd/100:32:501
12790993631,3cyclictest25-21ksoftirqd/100:27:241
12790993630,4cyclictest25-21ksoftirqd/122:52:481
12790993630,4cyclictest25-21ksoftirqd/122:19:141
12790993630,4cyclictest25-21ksoftirqd/120:13:341
12790993630,4cyclictest25-21ksoftirqd/100:09:271
1279099360,35cyclictest23938-21kworker/1:023:58:441
12788993630,4cyclictest9-21ksoftirqd/020:05:310
12788993630,4cyclictest9-21ksoftirqd/019:24:140
12788993630,4cyclictest9-21ksoftirqd/019:19:490
12792993530,3cyclictest33-21ksoftirqd/220:00:402
12792993529,4cyclictest33-21ksoftirqd/219:41:332
12792993528,4cyclictest33-21ksoftirqd/222:48:562
12790993529,4cyclictest25-21ksoftirqd/120:20:531
12790993529,4cyclictest25-21ksoftirqd/119:22:471
12788993529,4cyclictest9-21ksoftirqd/020:22:190
12788993529,4cyclictest9-21ksoftirqd/019:46:530
12788993528,4cyclictest9-21ksoftirqd/023:48:520
12788993512,4cyclictest28733-21mailstats19:40:230
12792993429,3cyclictest33-21ksoftirqd/200:10:402
12792993429,3cyclictest33-21ksoftirqd/200:10:402
12792993428,4cyclictest33-21ksoftirqd/220:42:122
12792993428,4cyclictest33-21ksoftirqd/220:42:122
12792993428,4cyclictest33-21ksoftirqd/219:54:092
1279299340,20cyclictest0-21swapper/222:00:162
12790993430,2cyclictest22961-21fschecks_count21:45:151
12790993429,3cyclictest25-21ksoftirqd/123:02:351
12790993429,3cyclictest25-21ksoftirqd/121:31:391
12790993429,3cyclictest25-21ksoftirqd/119:40:301
12790993428,4cyclictest25-21ksoftirqd/123:12:271
12790993428,4cyclictest25-21ksoftirqd/121:18:411
12790993428,4cyclictest25-21ksoftirqd/100:38:031
12790993428,3cyclictest25-21ksoftirqd/120:15:131
12788993429,3cyclictest9-21ksoftirqd/020:34:430
12788993428,4cyclictest9-21ksoftirqd/023:13:250
12788993428,4cyclictest9-21ksoftirqd/019:55:590
12788993428,4cyclictest9-21ksoftirqd/019:36:510
12788993428,3cyclictest9-21ksoftirqd/000:30:520
12788993427,4cyclictest9-21ksoftirqd/022:21:500
12788993427,4cyclictest9-21ksoftirqd/020:51:580
12788993413,4cyclictest27951-21sed00:10:140
12788993413,4cyclictest27951-21sed00:10:140
12790993329,3cyclictest25-21ksoftirqd/122:30:121
12790993328,3cyclictest25-21ksoftirqd/123:44:391
12790993328,3cyclictest25-21ksoftirqd/123:19:561
12790993328,3cyclictest25-21ksoftirqd/122:45:111
12790993328,3cyclictest25-21ksoftirqd/122:24:281
12790993328,3cyclictest25-21ksoftirqd/121:43:011
12790993328,3cyclictest25-21ksoftirqd/119:15:141
12790993327,4cyclictest25-21ksoftirqd/122:11:361
12790993327,4cyclictest25-21ksoftirqd/121:06:411
12790993327,4cyclictest25-21ksoftirqd/119:46:311
12790993326,4cyclictest25-21ksoftirqd/119:29:291
12788993328,3cyclictest9-21ksoftirqd/021:22:570
12788993328,3cyclictest9-21ksoftirqd/020:26:480
12788993328,3cyclictest14345-21fschecks_count22:35:140
12788993327,4cyclictest9-21ksoftirqd/023:04:550
12788993327,4cyclictest9-21ksoftirqd/022:42:440
12788993327,4cyclictest9-21ksoftirqd/022:12:390
12788993327,4cyclictest9-21ksoftirqd/021:52:340
12788993327,4cyclictest9-21ksoftirqd/021:48:130
12788993327,4cyclictest9-21ksoftirqd/020:41:420
12788993327,4cyclictest9-21ksoftirqd/020:41:410
12788993327,4cyclictest9-21ksoftirqd/019:30:050
12788993327,4cyclictest9-21ksoftirqd/019:12:230
12788993327,4cyclictest9-21ksoftirqd/000:39:340
12788993327,3cyclictest9-21ksoftirqd/022:08:420
12788993313,3cyclictest11830-21/usr/sbin/munin20:15:240
12792993227,3cyclictest33-21ksoftirqd/221:19:382
12792993226,4cyclictest33-21ksoftirqd/222:17:392
12790993227,3cyclictest25-21ksoftirqd/120:26:581
12790993226,4cyclictest25-21ksoftirqd/123:46:241
12790993226,4cyclictest25-21ksoftirqd/121:53:231
12790993225,4cyclictest16059-21cron22:40:011
12790993218,12cyclictest23938-21kworker/1:022:40:341
12788993227,3cyclictest9-21ksoftirqd/022:17:060
12788993227,3cyclictest9-21ksoftirqd/021:32:000
12788993227,3cyclictest9-21ksoftirqd/020:36:470
12788993227,3cyclictest9-21ksoftirqd/019:25:310
12788993227,3cyclictest9-21ksoftirqd/000:10:000
12788993227,3cyclictest9-21ksoftirqd/000:02:520
12788993226,4cyclictest9-21ksoftirqd/023:41:580
12788993226,4cyclictest9-21ksoftirqd/023:30:380
12788993226,4cyclictest9-21ksoftirqd/021:19:120
12788993226,4cyclictest9-21ksoftirqd/021:15:000
12788993225,4cyclictest9-21ksoftirqd/000:21:000
12788993214,3cyclictest30096-21unixbench_multi23:05:260
12788993212,2cyclictest17732-21/usr/sbin/munin21:35:140
12788993212,2cyclictest17732-21/usr/sbin/munin21:35:140
12788993211,3cyclictest4593-21cat21:05:210
12788993211,3cyclictest28275-21latency_hist20:50:000
12788993210,4cyclictest14784-21seq21:25:420
12790993126,3cyclictest25-21ksoftirqd/120:41:371
12790993126,3cyclictest25-21ksoftirqd/120:41:371
12790993126,3cyclictest25-21ksoftirqd/119:51:361
12790993125,4cyclictest25-21ksoftirqd/123:26:541
12790993125,4cyclictest25-21ksoftirqd/121:57:041
12790993125,4cyclictest25-21ksoftirqd/100:17:291
12790993124,4cyclictest25-21ksoftirqd/119:10:121
12788993126,3cyclictest9-21ksoftirqd/000:27:110
12788993125,4cyclictest9-21ksoftirqd/023:59:070
12788993125,4cyclictest9-21ksoftirqd/022:04:290
12788993125,4cyclictest9-21ksoftirqd/019:54:430
12792993024,4cyclictest33-21ksoftirqd/219:19:312
12792993012,15cyclictest23288-21cut19:30:192
1279299300,17cyclictest0-21swapper/223:55:172
12790993025,3cyclictest25-21ksoftirqd/123:37:241
12790993025,3cyclictest25-21ksoftirqd/123:06:071
12790993025,3cyclictest25-21ksoftirqd/121:25:481
12790993025,3cyclictest25-21ksoftirqd/100:21:011
12790993024,4cyclictest25-21ksoftirqd/122:56:571
1278899309,3cyclictest6268-21irqrtprio23:25:200
12788993025,3cyclictest9-21ksoftirqd/021:58:420
12788993010,3cyclictest4852-21wc20:00:130
12792992924,3cyclictest33-21ksoftirqd/220:12:012
1279299290,17cyclictest0-21swapper/220:20:172
12790992924,3cyclictest25-21ksoftirqd/122:04:421
12790992924,3cyclictest25-21ksoftirqd/120:36:561
12790992923,4cyclictest25-21ksoftirqd/121:37:181
12790992923,4cyclictest25-21ksoftirqd/121:37:181
12788992924,3cyclictest9-21ksoftirqd/022:32:010
12788992923,3cyclictest9-21ksoftirqd/022:55:020
12788992912,3cyclictest22417-21ptp4l22:50:230
12792992812,13cyclictest19547-21awk20:30:162
12792992811,14cyclictest17701-21cpu23:50:142
12790992823,3cyclictest25-21ksoftirqd/120:50:401
12790992822,4cyclictest25-21ksoftirqd/121:01:441
12790992822,4cyclictest25-21ksoftirqd/100:12:031
12790992822,4cyclictest25-21ksoftirqd/100:12:031
12790992822,3cyclictest25-21ksoftirqd/123:50:131
12788992822,4cyclictest9-21ksoftirqd/000:18:280
12792992723,3cyclictest33-21ksoftirqd/200:00:282
12790992722,3cyclictest25-21ksoftirqd/122:05:591
12790992721,4cyclictest25-21ksoftirqd/120:32:351
12790992721,4cyclictest25-21ksoftirqd/119:57:531
12788992721,4cyclictest9-21ksoftirqd/023:23:240
12788992721,4cyclictest9-21ksoftirqd/023:17:300
12788992721,4cyclictest9-21ksoftirqd/020:10:370
1279299260,23cyclictest13434-21tune2fs21:25:162
12790992621,3cyclictest25-21ksoftirqd/121:20:331
12790992621,3cyclictest25-21ksoftirqd/120:09:061
12790992520,3cyclictest25-21ksoftirqd/123:24:501
12790992418,3cyclictest25-21ksoftirqd/120:00:521
1279099240,23cyclictest0-21swapper/100:01:151
12788992317,3cyclictest9-21ksoftirqd/023:50:070
12790992217,3cyclictest25-21ksoftirqd/121:14:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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