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2026-04-01 - 16:51
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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 Apr 01, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290172236171,22sleep10-21swapper/107:06:431
290062216151,22sleep00-21swapper/007:06:340
139491206172,23phc2sys0-21swapper/307:09:523
291572202168,23sleep20-21swapper/207:08:262
139391800,1ptp4l401ktimersoftd/310:00:223
118532700,3sleep311857-21timerandwakeup08:45:263
140452640,5sleep314047-21grep08:50:233
253802600,2sleep30-21swapper/310:20:293
39082570,2sleep00-21swapper/009:35:290
2957599541,17cyclictest0-21swapper/207:15:202
2957599521,17cyclictest0-21swapper/208:55:142
2957599510,17cyclictest0-21swapper/211:25:252
2957599510,17cyclictest0-21swapper/207:30:262
45592470,2sleep20-21swapper/208:30:242
2957599473,15cyclictest1016-21timerandwakeup11:45:272
2957599470,16cyclictest0-21swapper/211:30:272
2957599461,7cyclictest13134-21grep12:10:262
2957599460,16cyclictest0-21swapper/210:45:262
2957599455,22cyclictest22926-21smartctl09:10:162
2957599453,13cyclictest18965-21/usr/sbin/munin12:25:212
2957599441,16cyclictest12184-21unixbench_singl11:00:272
2957599440,14cyclictest0-21swapper/212:30:152
2957599433,15cyclictest5639-21cat09:40:212
139391430,0ptp4l401ktimersoftd/312:31:083
2957599423,15cyclictest21681-21expr10:15:122
2957599421,7cyclictest18964-21grep09:00:262
2957599420,15cyclictest0-21swapper/211:50:232
139391420,0ptp4l401ktimersoftd/309:55:273
2957599412,7cyclictest30563-21ls09:25:182
2957599410,6cyclictest10489-21ls07:35:232
29573994135,3cyclictest9-21ksoftirqd/010:40:000
29573994135,3cyclictest9-21ksoftirqd/010:40:000
139391410,34ptp4l0-21swapper/307:10:003
139391410,0ptp4l401ktimersoftd/312:10:053
139391410,0ptp4l401ktimersoftd/309:10:043
139391410,0ptp4l401ktimersoftd/307:26:523
2957599403,12cyclictest32567-21ps09:30:192
29575994012,26cyclictest13429-21kworker/2:110:10:232
2957599401,15cyclictest17272-21ps12:20:202
29575994010,28cyclictest13429-21kworker/2:110:20:222
29573994034,3cyclictest9-21ksoftirqd/007:55:000
2957599394,13cyclictest14857-21sshd11:08:312
2957599391,7cyclictest5610-21ls11:55:232
2957599391,35cyclictest17348-21cron11:15:002
139391390,0ptp4l401ktimersoftd/309:15:283
29575993831,4cyclictest33-21ksoftirqd/211:23:592
2957599382,7cyclictest24738-21meminfo12:35:192
2957599380,16cyclictest0-21swapper/208:13:402
29573993834,2cyclictest9-21ksoftirqd/010:00:000
29573993832,3cyclictest9-21ksoftirqd/010:15:000
29573993832,3cyclictest9-21ksoftirqd/009:55:000
29573993832,3cyclictest9-21ksoftirqd/009:40:190
29573993832,3cyclictest9-21ksoftirqd/009:35:010
29576993731,3cyclictest41-21ksoftirqd/310:50:003
2957599372,15cyclictest8138-21ps12:00:222
2957599372,14cyclictest30034-21grep10:30:232
2957599371,9cyclictest1300-21snmpd12:17:442
29574993731,4cyclictest25-21ksoftirqd/108:46:281
29574993731,3cyclictest25-21ksoftirqd/110:56:581
29574993730,4cyclictest25-21ksoftirqd/111:23:051
29574993730,4cyclictest25-21ksoftirqd/108:50:101
29573993733,2cyclictest9-21ksoftirqd/012:05:010
29573993732,3cyclictest9-21ksoftirqd/010:19:590
29573993732,2cyclictest9-21ksoftirqd/007:45:180
139391370,0ptp4l401ktimersoftd/309:00:233
29576993629,4cyclictest41-21ksoftirqd/311:47:463
29576993623,10cyclictest41-21ksoftirqd/310:58:193
2957599361,8cyclictest6825-21ps08:35:232
2957599361,15cyclictest0-21swapper/209:35:192
2957599360,7cyclictest28724-21ls11:35:272
2957599360,15cyclictest0-21swapper/208:50:222
29574993630,4cyclictest25-21ksoftirqd/111:18:281
29574993630,4cyclictest25-21ksoftirqd/107:49:471
29574993629,5cyclictest25-21ksoftirqd/107:50:121
29573993631,3cyclictest9-21ksoftirqd/012:20:000
29573993631,3cyclictest9-21ksoftirqd/012:05:190
29573993631,3cyclictest9-21ksoftirqd/011:10:180
29573993631,3cyclictest9-21ksoftirqd/010:45:010
29573993631,3cyclictest9-21ksoftirqd/008:40:000
29573993631,2cyclictest9-21ksoftirqd/009:25:000
29573993630,3cyclictest9-21ksoftirqd/010:50:010
29573993629,4cyclictest9-21ksoftirqd/009:03:150
139391360,13ptp4l401ktimersoftd/310:07:183
29576993528,4cyclictest41-21ksoftirqd/311:38:443
29576993528,4cyclictest41-21ksoftirqd/311:25:353
29575993529,4cyclictest33-21ksoftirqd/210:02:152
29575993529,4cyclictest33-21ksoftirqd/207:30:002
29574993530,3cyclictest25-21ksoftirqd/108:13:061
29574993529,4cyclictest25-21ksoftirqd/112:24:351
29574993529,4cyclictest25-21ksoftirqd/111:39:501
29574993529,4cyclictest25-21ksoftirqd/109:55:031
29574993529,4cyclictest25-21ksoftirqd/109:14:521
29574993529,4cyclictest25-21ksoftirqd/107:44:311
29574993528,4cyclictest25-21ksoftirqd/108:04:201
29573993531,3cyclictest9-21ksoftirqd/007:35:200
29573993531,3cyclictest9-21ksoftirqd/007:25:190
29573993531,2cyclictest9-21ksoftirqd/011:00:010
29573993530,3cyclictest9-21ksoftirqd/008:30:000
29573993530,3cyclictest9-21ksoftirqd/007:10:200
29573993530,2cyclictest9-21ksoftirqd/009:00:000
139391350,0ptp4l401ktimersoftd/309:30:243
29576993429,3cyclictest41-21ksoftirqd/308:57:063
29576993428,4cyclictest41-21ksoftirqd/311:02:563
29576993428,4cyclictest41-21ksoftirqd/309:42:223
29576993428,4cyclictest41-21ksoftirqd/308:20:553
29576993428,4cyclictest41-21ksoftirqd/307:50:383
29576993428,4cyclictest41-21ksoftirqd/307:39:183
29576993428,3cyclictest41-21ksoftirqd/312:25:123
29576993428,3cyclictest41-21ksoftirqd/309:52:163
29575993428,4cyclictest33-21ksoftirqd/211:17:322
29575993428,4cyclictest33-21ksoftirqd/210:39:302
29575993428,4cyclictest33-21ksoftirqd/210:39:302
29574993429,3cyclictest25-21ksoftirqd/112:30:591
29574993428,4cyclictest25-21ksoftirqd/112:13:151
29574993428,4cyclictest25-21ksoftirqd/109:37:511
29574993428,4cyclictest25-21ksoftirqd/107:57:421
29574993428,4cyclictest25-21ksoftirqd/107:28:571
29574993428,3cyclictest25-21ksoftirqd/110:05:121
29573993430,2cyclictest111rcuc/012:30:180
29573993429,3cyclictest9-21ksoftirqd/011:30:200
29573993429,3cyclictest9-21ksoftirqd/011:05:200
29573993429,3cyclictest9-21ksoftirqd/009:15:010
29573993428,3cyclictest9-21ksoftirqd/009:06:570
29576993327,4cyclictest41-21ksoftirqd/311:51:323
29576993327,4cyclictest41-21ksoftirqd/310:35:463
29576993327,4cyclictest41-21ksoftirqd/310:35:463
29576993327,4cyclictest41-21ksoftirqd/309:21:283
29576993327,4cyclictest41-21ksoftirqd/308:32:463
29576993326,4cyclictest41-21ksoftirqd/312:07:353
29576993326,4cyclictest41-21ksoftirqd/309:27:263
29575993327,4cyclictest33-21ksoftirqd/211:44:192
29575993327,4cyclictest33-21ksoftirqd/210:40:542
29575993327,4cyclictest33-21ksoftirqd/210:26:132
29575993327,4cyclictest33-21ksoftirqd/209:23:002
29574993327,4cyclictest25-21ksoftirqd/110:46:061
29574993327,4cyclictest25-21ksoftirqd/110:32:551
29574993327,4cyclictest25-21ksoftirqd/110:26:371
29574993327,4cyclictest25-21ksoftirqd/109:07:221
29574993327,4cyclictest25-21ksoftirqd/109:00:001
29574993327,4cyclictest25-21ksoftirqd/107:30:541
29574993327,4cyclictest25-21ksoftirqd/107:21:191
29574993327,4cyclictest25-21ksoftirqd/107:21:191
29574993327,4cyclictest25-21ksoftirqd/107:19:191
29573993329,3cyclictest9-21ksoftirqd/008:50:000
29573993329,3cyclictest9-21ksoftirqd/007:55:190
29573993329,2cyclictest9-21ksoftirqd/010:00:140
29573993328,3cyclictest9-21ksoftirqd/012:00:010
29573993328,3cyclictest9-21ksoftirqd/010:34:590
29573993328,3cyclictest9-21ksoftirqd/010:23:490
29573993328,2cyclictest9-21ksoftirqd/008:10:120
29573993327,4cyclictest9-21ksoftirqd/011:25:090
29573993327,4cyclictest9-21ksoftirqd/010:27:150
139391330,0ptp4l401ktimersoftd/310:15:133
29576993226,4cyclictest41-21ksoftirqd/311:13:203
29576993226,4cyclictest41-21ksoftirqd/309:38:213
29576993226,4cyclictest41-21ksoftirqd/308:35:503
29576993226,4cyclictest41-21ksoftirqd/307:16:243
29576993226,3cyclictest41-21ksoftirqd/312:18:123
29575993225,5cyclictest33-21ksoftirqd/208:41:072
29574993228,3cyclictest25-21ksoftirqd/109:15:311
29574993227,3cyclictest25-21ksoftirqd/111:10:331
29574993227,3cyclictest25-21ksoftirqd/111:00:111
29574993227,3cyclictest25-21ksoftirqd/109:00:121
29574993227,3cyclictest25-21ksoftirqd/108:06:031
29574993226,4cyclictest25-21ksoftirqd/111:27:581
29574993226,4cyclictest25-21ksoftirqd/110:19:511
29574993226,4cyclictest25-21ksoftirqd/109:54:151
29574993226,4cyclictest25-21ksoftirqd/109:26:031
29574993226,4cyclictest25-21ksoftirqd/107:36:081
29574993226,3cyclictest25-21ksoftirqd/112:17:001
29574993226,3cyclictest25-21ksoftirqd/111:54:591
29573993228,2cyclictest9-21ksoftirqd/009:50:010
29573993228,2cyclictest9-21ksoftirqd/008:35:000
29573993227,3cyclictest9-21ksoftirqd/011:22:100
29573993227,3cyclictest9-21ksoftirqd/008:25:000
29573993226,4cyclictest9-21ksoftirqd/009:27:110
29573993226,3cyclictest9-21ksoftirqd/011:37:280
29573993226,3cyclictest9-21ksoftirqd/008:04:550
29573993226,3cyclictest9-21ksoftirqd/007:20:190
29573993226,3cyclictest9-21ksoftirqd/007:20:190
29576993126,3cyclictest41-21ksoftirqd/312:01:543
29576993126,3cyclictest41-21ksoftirqd/311:16:413
29576993125,4cyclictest41-21ksoftirqd/312:21:003
29576993125,4cyclictest41-21ksoftirqd/309:48:323
29576993125,4cyclictest41-21ksoftirqd/307:46:373
29575993125,4cyclictest33-21ksoftirqd/212:08:232
29575993125,4cyclictest33-21ksoftirqd/207:12:232
29575993118,11cyclictest0-21swapper/209:15:222
29574993126,3cyclictest25-21ksoftirqd/111:33:101
29574993126,3cyclictest25-21ksoftirqd/108:39:141
29574993125,4cyclictest25-21ksoftirqd/110:41:531
29574993125,4cyclictest25-21ksoftirqd/108:34:491
29573993128,2cyclictest9-21ksoftirqd/007:20:010
29573993126,3cyclictest9-21ksoftirqd/012:25:130
29573993126,3cyclictest9-21ksoftirqd/010:05:160
29573993126,3cyclictest9-21ksoftirqd/008:50:260
29573993126,3cyclictest9-21ksoftirqd/008:42:020
29573993126,3cyclictest9-21ksoftirqd/007:45:000
29573993126,2cyclictest25550-21irqrtprio09:15:170
29573993125,4cyclictest9-21ksoftirqd/011:52:440
29573993125,4cyclictest9-21ksoftirqd/008:18:030
139391310,0ptp4l401ktimersoftd/308:16:533
29576993025,3cyclictest41-21ksoftirqd/311:05:113
29576993024,4cyclictest41-21ksoftirqd/312:38:493
29576993024,4cyclictest41-21ksoftirqd/311:31:503
29576993024,4cyclictest41-21ksoftirqd/310:11:023
29576993024,4cyclictest41-21ksoftirqd/308:03:423
29576993024,4cyclictest41-21ksoftirqd/307:56:113
29576993024,4cyclictest41-21ksoftirqd/307:32:573
2957599303,8cyclictest13414-21ls07:40:252
29575993025,3cyclictest33-21ksoftirqd/210:07:042
29575993024,4cyclictest33-21ksoftirqd/210:56:112
29575993024,4cyclictest33-21ksoftirqd/208:08:422
29575993024,4cyclictest33-21ksoftirqd/207:45:312
29574993024,4cyclictest25-21ksoftirqd/110:39:291
29574993024,4cyclictest25-21ksoftirqd/110:39:291
29574993024,4cyclictest25-21ksoftirqd/108:27:181
29573993025,3cyclictest9-21ksoftirqd/011:00:190
29573993024,4cyclictest9-21ksoftirqd/011:49:550
29573993024,4cyclictest9-21ksoftirqd/008:06:510
29573993024,3cyclictest9-21ksoftirqd/011:40:170
29576992924,3cyclictest41-21ksoftirqd/311:59:493
29576992923,4cyclictest41-21ksoftirqd/310:54:383
29576992923,4cyclictest41-21ksoftirqd/310:42:593
29575992926,2cyclictest33-21ksoftirqd/208:00:132
29575992924,3cyclictest33-21ksoftirqd/209:47:062
29575992923,4cyclictest33-21ksoftirqd/209:07:592
29575992923,4cyclictest33-21ksoftirqd/208:28:242
29574992924,3cyclictest25-21ksoftirqd/111:42:171
29574992924,3cyclictest25-21ksoftirqd/110:01:301
29574992924,3cyclictest25-21ksoftirqd/108:42:351
29574992924,3cyclictest25-21ksoftirqd/108:22:161
29574992923,4cyclictest25-21ksoftirqd/111:47:041
29574992923,4cyclictest25-21ksoftirqd/107:10:121
29574992922,4cyclictest25-21ksoftirqd/111:05:351
29573992924,3cyclictest9-21ksoftirqd/012:35:520
29573992923,4cyclictest9-21ksoftirqd/010:52:270
139391290,7ptp4l401ktimersoftd/310:34:333
139391290,0ptp4l401ktimersoftd/311:43:203
29576992823,3cyclictest41-21ksoftirqd/307:21:473
29576992823,3cyclictest41-21ksoftirqd/307:21:473
29576992822,4cyclictest41-21ksoftirqd/308:29:133
2957599284,21cyclictest551-21rs:main2
29575992823,3cyclictest33-21ksoftirqd/209:50:532
29575992823,3cyclictest33-21ksoftirqd/208:46:572
29575992823,3cyclictest33-21ksoftirqd/207:54:582
29575992823,3cyclictest33-21ksoftirqd/207:22:072
29575992823,3cyclictest33-21ksoftirqd/207:22:072
29575992822,4cyclictest33-21ksoftirqd/207:57:232
29575992810,9cyclictest11897-21/usr/sbin/munin09:55:202
29574992823,3cyclictest25-21ksoftirqd/109:42:401
29574992822,4cyclictest25-21ksoftirqd/112:27:441
29574992822,4cyclictest25-21ksoftirqd/112:08:381
29574992822,4cyclictest25-21ksoftirqd/109:47:221
29574992822,4cyclictest25-21ksoftirqd/109:22:501
29573992823,3cyclictest9-21ksoftirqd/012:24:090
29573992823,3cyclictest9-21ksoftirqd/007:30:460
29573992823,2cyclictest9-21ksoftirqd/011:15:240
139391280,0ptp4l401ktimersoftd/308:40:163
139391280,0ptp4l401ktimersoftd/308:05:503
29574992722,3cyclictest25-21ksoftirqd/110:23:201
29574992721,4cyclictest25-21ksoftirqd/112:36:311
29573992723,2cyclictest9-21ksoftirqd/012:10:270
139391270,0ptp4l401ktimersoftd/311:22:153
139391270,0ptp4l401ktimersoftd/309:09:133
29576992621,3cyclictest41-21ksoftirqd/308:14:293
29575992620,4cyclictest33-21ksoftirqd/208:24:312
29575992619,4cyclictest33-21ksoftirqd/210:50:092
29574992621,3cyclictest25-21ksoftirqd/110:10:481
139391250,0ptp4l401ktimersoftd/310:25:153
29574992419,3cyclictest25-21ksoftirqd/108:15:351
29574992418,4cyclictest25-21ksoftirqd/110:53:481
29574992418,4cyclictest25-21ksoftirqd/109:31:091
139391240,0ptp4l401ktimersoftd/307:43:063
29574992317,4cyclictest25-21ksoftirqd/111:59:041
29574992217,3cyclictest25-21ksoftirqd/112:04:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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