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2026-04-05 - 15:38
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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 rackdslot4.osadl.org (updated Sun Apr 05, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6082231167,52sleep30-21swapper/307:09:323
5802202168,22sleep10-21swapper/107:09:101
4882202169,22sleep00-21swapper/007:08:080
4142202170,21sleep20-21swapper/207:07:212
138591161120,14phc2sys0-21swapper/307:10:013
95799670,3cyclictest12068-21latency09:40:212
248152590,2sleep30-21swapper/309:00:243
138491530,1ptp4l401ktimersoftd/308:39:493
95899456,4cyclictest41-21ksoftirqd/308:45:143
95899450,6cyclictest41-21ksoftirqd/311:07:483
95899449,4cyclictest41-21ksoftirqd/311:50:213
958994436,5cyclictest4162-21cut08:20:153
138491440,0ptp4l401ktimersoftd/309:34:463
958994330,3cyclictest41-21ksoftirqd/309:10:003
958994330,11cyclictest41-21ksoftirqd/309:25:153
958994324,16cyclictest41-21ksoftirqd/312:40:003
958994313,8cyclictest41-21ksoftirqd/307:25:143
958994313,6cyclictest41-21ksoftirqd/309:10:273
95799430,26cyclictest21833-21netstat11:05:212
138491430,0ptp4l401ktimersoftd/309:24:393
138491430,0ptp4l401ktimersoftd/309:15:203
138491430,0ptp4l401ktimersoftd/308:43:163
138491430,0ptp4l401ktimersoftd/308:30:333
958994214,3cyclictest41-21ksoftirqd/307:40:193
958994212,4cyclictest41-21ksoftirqd/310:40:283
958994135,3cyclictest41-21ksoftirqd/312:20:003
958994130,9cyclictest41-21ksoftirqd/307:55:143
958994117,7cyclictest41-21ksoftirqd/308:10:283
958994111,10cyclictest41-21ksoftirqd/310:05:273
956994135,3cyclictest25896-21cron08:00:011
138491410,0ptp4l401ktimersoftd/312:33:073
138491410,0ptp4l401ktimersoftd/311:47:133
138491410,0ptp4l401ktimersoftd/310:45:143
95899409,4cyclictest41-21ksoftirqd/311:40:223
958994028,3cyclictest41-21ksoftirqd/311:30:243
958993934,2cyclictest41-21ksoftirqd/307:25:013
958993933,3cyclictest41-21ksoftirqd/308:05:003
958993927,9cyclictest41-21ksoftirqd/311:15:263
95899391,5cyclictest41-21ksoftirqd/310:58:053
95899391,5cyclictest41-21ksoftirqd/310:35:013
95899391,5cyclictest41-21ksoftirqd/310:03:093
95899391,4cyclictest41-21ksoftirqd/307:35:093
958993912,3cyclictest41-21ksoftirqd/309:40:263
958993910,3cyclictest41-21ksoftirqd/312:05:063
957993925,12cyclictest33-21ksoftirqd/211:15:102
958993834,3cyclictest41-21ksoftirqd/311:25:113
958993833,3cyclictest41-21ksoftirqd/307:50:263
95899382,5cyclictest41-21ksoftirqd/309:45:273
95899382,5cyclictest41-21ksoftirqd/308:16:053
95899382,5cyclictest41-21ksoftirqd/308:16:053
95899381,5cyclictest41-21ksoftirqd/310:51:513
95899381,5cyclictest41-21ksoftirqd/310:17:363
95899381,5cyclictest41-21ksoftirqd/308:26:243
95899381,4cyclictest41-21ksoftirqd/311:21:443
95899381,4cyclictest41-21ksoftirqd/307:17:173
95899381,4cyclictest41-21ksoftirqd/307:17:173
95899380,5cyclictest41-21ksoftirqd/312:23:053
957993831,5cyclictest33-21ksoftirqd/208:15:032
957993831,5cyclictest33-21ksoftirqd/208:15:032
956993831,5cyclictest25-21ksoftirqd/108:28:111
955993824,12cyclictest9-21ksoftirqd/007:37:090
95899374,5cyclictest41-21ksoftirqd/308:05:203
95899373,8cyclictest41-21ksoftirqd/309:55:153
958993733,2cyclictest41-21ksoftirqd/311:00:253
958993732,3cyclictest41-21ksoftirqd/312:00:003
958993732,3cyclictest41-21ksoftirqd/311:40:013
95899372,4cyclictest41-21ksoftirqd/311:14:053
95899371,5cyclictest41-21ksoftirqd/310:26:433
95899371,5cyclictest41-21ksoftirqd/309:38:573
95899371,4cyclictest41-21ksoftirqd/312:25:103
956993731,4cyclictest25-21ksoftirqd/110:13:221
955993724,11cyclictest9-21ksoftirqd/010:50:090
95899363,3cyclictest41-21ksoftirqd/309:50:243
958993631,3cyclictest41-21ksoftirqd/310:30:193
958993631,3cyclictest41-21ksoftirqd/308:55:143
95899361,3cyclictest41-21ksoftirqd/307:32:483
95899361,3cyclictest121rcu_preempt07:45:143
95899361,3cyclictest121rcu_preempt07:45:143
95899360,5cyclictest41-21ksoftirqd/310:11:463
957993630,4cyclictest33-21ksoftirqd/212:33:122
957993630,4cyclictest33-21ksoftirqd/212:27:182
957993630,4cyclictest33-21ksoftirqd/207:38:552
956993631,3cyclictest25-21ksoftirqd/110:43:361
956993630,4cyclictest25-21ksoftirqd/112:11:161
955993629,4cyclictest9-21ksoftirqd/008:24:220
138491360,0ptp4l401ktimersoftd/312:02:393
95899353,4cyclictest41-21ksoftirqd/308:55:013
958993530,3cyclictest41-21ksoftirqd/312:10:133
957993530,3cyclictest33-21ksoftirqd/209:02:242
957993529,4cyclictest33-21ksoftirqd/212:20:002
957993529,4cyclictest33-21ksoftirqd/211:53:292
957993529,4cyclictest33-21ksoftirqd/211:33:422
957993529,4cyclictest33-21ksoftirqd/211:27:522
957993529,4cyclictest33-21ksoftirqd/210:37:502
957993529,4cyclictest33-21ksoftirqd/209:22:212
957993529,4cyclictest33-21ksoftirqd/208:31:422
957993529,4cyclictest33-21ksoftirqd/208:14:522
957993528,4cyclictest33-21ksoftirqd/209:51:292
957993527,5cyclictest33-21ksoftirqd/210:52:462
956993530,3cyclictest25-21ksoftirqd/111:35:141
956993529,4cyclictest25-21ksoftirqd/110:31:391
956993529,4cyclictest25-21ksoftirqd/110:05:161
956993529,4cyclictest25-21ksoftirqd/109:55:341
956993529,4cyclictest25-21ksoftirqd/109:48:591
956993529,4cyclictest25-21ksoftirqd/108:03:331
956993529,4cyclictest25-21ksoftirqd/107:41:421
955993529,4cyclictest9-21ksoftirqd/011:51:260
955993529,4cyclictest9-21ksoftirqd/011:37:290
955993529,4cyclictest9-21ksoftirqd/009:31:140
955993529,4cyclictest9-21ksoftirqd/008:51:330
955993511,22cyclictest5630-21sed10:35:000
957993429,3cyclictest33-21ksoftirqd/212:10:392
957993428,4cyclictest33-21ksoftirqd/210:22:552
957993428,4cyclictest33-21ksoftirqd/210:05:452
957993428,4cyclictest33-21ksoftirqd/209:25:062
957993428,4cyclictest33-21ksoftirqd/208:54:242
957993428,4cyclictest33-21ksoftirqd/208:49:552
957993428,4cyclictest33-21ksoftirqd/208:05:542
957993428,4cyclictest33-21ksoftirqd/208:02:452
956993429,3cyclictest30573-21cron12:30:011
956993429,3cyclictest25-21ksoftirqd/111:09:541
956993429,3cyclictest25-21ksoftirqd/109:25:101
956993429,3cyclictest25-21ksoftirqd/108:56:121
956993429,3cyclictest25-21ksoftirqd/108:39:071
956993428,4cyclictest25-21ksoftirqd/112:06:071
956993428,4cyclictest25-21ksoftirqd/111:25:481
956993428,4cyclictest25-21ksoftirqd/111:19:571
956993428,4cyclictest25-21ksoftirqd/110:37:171
956993428,4cyclictest25-21ksoftirqd/110:00:111
956993428,4cyclictest25-21ksoftirqd/109:22:431
956993428,4cyclictest25-21ksoftirqd/107:51:091
956993428,4cyclictest25-21ksoftirqd/107:45:521
956993428,4cyclictest25-21ksoftirqd/107:45:511
956993428,4cyclictest25-21ksoftirqd/107:20:111
956993428,4cyclictest25-21ksoftirqd/107:16:351
956993428,4cyclictest25-21ksoftirqd/107:16:351
956993427,4cyclictest25-21ksoftirqd/112:39:581
955993429,3cyclictest9-21ksoftirqd/010:25:350
955993429,3cyclictest9-21ksoftirqd/008:45:230
955993428,4cyclictest9-21ksoftirqd/007:42:580
955993428,4cyclictest9-21ksoftirqd/007:21:280
955993427,5cyclictest9-21ksoftirqd/008:42:470
955993411,21cyclictest7246-21sed08:25:190
95599340,2cyclictest121rcu_preempt08:59:160
958993329,3cyclictest41-21ksoftirqd/310:20:173
957993328,3cyclictest33-21ksoftirqd/209:46:072
957993327,4cyclictest33-21ksoftirqd/212:21:482
957993327,4cyclictest33-21ksoftirqd/212:06:202
957993327,4cyclictest33-21ksoftirqd/209:35:452
957993327,4cyclictest33-21ksoftirqd/208:36:352
957993327,4cyclictest33-21ksoftirqd/207:16:162
957993327,4cyclictest33-21ksoftirqd/207:16:152
957993326,4cyclictest33-21ksoftirqd/208:00:002
95799330,5cyclictest23165-21systemctl09:00:002
956993327,4cyclictest25-21ksoftirqd/112:19:471
956993327,4cyclictest25-21ksoftirqd/108:30:491
956993327,4cyclictest25-21ksoftirqd/108:22:091
956993327,4cyclictest25-21ksoftirqd/108:15:331
956993327,4cyclictest25-21ksoftirqd/108:15:321
955993328,3cyclictest9-21ksoftirqd/011:58:060
955993328,3cyclictest9-21ksoftirqd/011:47:320
955993328,3cyclictest9-21ksoftirqd/009:46:090
955993328,3cyclictest9-21ksoftirqd/009:14:290
955993328,3cyclictest9-21ksoftirqd/008:08:530
955993328,3cyclictest9-21ksoftirqd/007:46:390
955993328,3cyclictest9-21ksoftirqd/007:46:390
955993328,3cyclictest9-21ksoftirqd/007:27:370
955993327,4cyclictest9-21ksoftirqd/011:30:560
955993327,4cyclictest9-21ksoftirqd/011:00:430
955993327,4cyclictest9-21ksoftirqd/010:39:420
955993327,4cyclictest9-21ksoftirqd/009:56:480
955993327,4cyclictest9-21ksoftirqd/008:33:250
955993327,4cyclictest9-21ksoftirqd/007:31:270
955993327,4cyclictest9-21ksoftirqd/007:13:410
95599330,2cyclictest121rcu_preempt10:20:170
957993227,3cyclictest33-21ksoftirqd/212:36:332
957993226,4cyclictest33-21ksoftirqd/211:45:302
957993226,4cyclictest33-21ksoftirqd/211:38:562
957993226,4cyclictest33-21ksoftirqd/210:26:002
95799320,2cyclictest0-21swapper/208:25:012
956993227,3cyclictest25-21ksoftirqd/111:53:171
956993227,3cyclictest25-21ksoftirqd/111:41:041
956993226,4cyclictest25-21ksoftirqd/111:47:411
956993226,4cyclictest25-21ksoftirqd/109:30:581
956993226,4cyclictest25-21ksoftirqd/109:03:181
956993226,4cyclictest25-21ksoftirqd/108:45:291
956993226,4cyclictest25-21ksoftirqd/107:38:491
955993227,3cyclictest9-21ksoftirqd/012:33:540
955993227,3cyclictest9-21ksoftirqd/012:15:060
955993227,3cyclictest9-21ksoftirqd/012:03:500
955993227,3cyclictest9-21ksoftirqd/009:27:310
955993227,3cyclictest9-21ksoftirqd/009:07:170
955993226,4cyclictest9-21ksoftirqd/012:39:200
955993226,4cyclictest9-21ksoftirqd/011:20:330
955993212,18cyclictest4054-21fschecks_time07:15:150
955993212,18cyclictest4054-21fschecks_time07:15:150
50798320,2rtkit-daemon4228-21apache212:23:071
957993126,3cyclictest33-21ksoftirqd/211:23:092
957993125,4cyclictest33-21ksoftirqd/207:53:472
95799311,3cyclictest223-21systemd-journal09:17:112
957993113,15cyclictest20754-21cut10:00:002
957993111,17cyclictest22016-21sed10:00:202
95799310,4cyclictest29074-21sed10:15:172
95799310,3cyclictest17896-21dump-pmu-power11:00:002
95799310,1cyclictest0-21swapper/207:10:122
956993125,4cyclictest25-21ksoftirqd/112:33:051
956993125,4cyclictest25-21ksoftirqd/109:43:091
956993125,4cyclictest25-21ksoftirqd/109:12:041
956993125,4cyclictest25-21ksoftirqd/108:54:401
956993125,4cyclictest25-21ksoftirqd/108:44:131
956993125,4cyclictest25-21ksoftirqd/107:13:431
955993126,3cyclictest9-21ksoftirqd/010:16:070
955993126,3cyclictest9-21ksoftirqd/009:40:160
955993125,4cyclictest9-21ksoftirqd/011:10:180
955993125,4cyclictest9-21ksoftirqd/010:49:270
955993125,4cyclictest9-21ksoftirqd/007:59:510
955993124,5cyclictest9-21ksoftirqd/010:00:570
955993110,18cyclictest25695-21latency_hist10:10:000
95799303,22cyclictest13118-21apt-get11:55:122
957993025,3cyclictest33-21ksoftirqd/211:03:132
957993025,3cyclictest33-21ksoftirqd/210:43:422
957993025,3cyclictest33-21ksoftirqd/210:12:092
957993024,3cyclictest33-21ksoftirqd/208:29:292
95799302,25cyclictest6781-21cut11:40:182
957993013,14cyclictest23036-21/usr/sbin/munin11:10:172
95799301,2cyclictest0-21swapper/207:45:202
95799301,2cyclictest0-21swapper/207:45:202
95799300,3cyclictest11066-21expr10:45:122
95799300,2cyclictest129272sleep207:32:012
95799300,2cyclictest0-21swapper/207:20:212
956993024,4cyclictest25-21ksoftirqd/111:59:411
956993024,4cyclictest25-21ksoftirqd/111:20:341
956993024,4cyclictest25-21ksoftirqd/110:51:181
956993024,4cyclictest25-21ksoftirqd/109:39:281
95599309,18cyclictest27754-21latency_hist11:20:010
955993025,3cyclictest9-21ksoftirqd/012:21:330
955993025,3cyclictest9-21ksoftirqd/011:42:310
955993025,3cyclictest9-21ksoftirqd/011:26:100
955993025,3cyclictest9-21ksoftirqd/009:15:330
955993025,3cyclictest9-21ksoftirqd/008:16:400
955993025,3cyclictest9-21ksoftirqd/008:16:400
955993024,4cyclictest9-21ksoftirqd/011:08:050
955993024,4cyclictest9-21ksoftirqd/009:23:470
955993024,4cyclictest9-21ksoftirqd/007:52:130
95799292,22cyclictest3306-21apt-get10:30:142
957992911,15cyclictest26765-21irqrtprio09:05:192
95799290,2cyclictest304312sleep209:13:472
95799290,2cyclictest16232-21/usr/sbin/munin12:00:172
95799290,1cyclictest0-21swapper/208:40:122
956992924,3cyclictest25-21ksoftirqd/112:00:031
956992923,4cyclictest25-21ksoftirqd/109:16:371
955992924,3cyclictest9-21ksoftirqd/012:27:360
955992924,3cyclictest9-21ksoftirqd/010:55:370
95599291,8cyclictest10081-21unixbench_singl10:40:270
955992911,15cyclictest32257-21needreboot08:10:220
955992910,16cyclictest17378-21find09:50:230
95799282,19cyclictest5895-21apt-get09:30:122
957992812,13cyclictest16098-21/usr/sbin/munin07:40:262
95799280,25cyclictest9781-21phc2sys07:25:222
956992823,3cyclictest25-21ksoftirqd/110:57:491
956992822,4cyclictest25-21ksoftirqd/109:05:461
956992822,4cyclictest25-21ksoftirqd/107:29:231
95599288,18cyclictest461-21dbus-daemon08:00:230
955992823,3cyclictest9-21ksoftirqd/009:01:270
955992822,4cyclictest9-21ksoftirqd/012:10:150
956992722,3cyclictest25-21ksoftirqd/111:12:261
956992722,3cyclictest25-21ksoftirqd/111:04:361
956992722,3cyclictest25-21ksoftirqd/109:52:241
956992722,3cyclictest25-21ksoftirqd/107:30:021
956992721,4cyclictest25-21ksoftirqd/108:11:111
955992722,3cyclictest9-21ksoftirqd/012:06:250
955992721,4cyclictest9-21ksoftirqd/010:12:090
955992712,13cyclictest101ktimersoftd/009:35:220
956992621,3cyclictest25-21ksoftirqd/110:45:271
956992620,4cyclictest25-21ksoftirqd/108:05:141
95599257,3cyclictest11963-21irqrtprio08:35:190
956992419,3cyclictest25-21ksoftirqd/110:25:221
956992418,4cyclictest25-21ksoftirqd/110:21:041
956992217,3cyclictest25-21ksoftirqd/111:32:461
956992216,4cyclictest25-21ksoftirqd/110:15:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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