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2026-07-02 - 01:35
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Wed Jul 01, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
370022100,5sleep00-21swapper/007:05:140
54582206173,22sleep20-21swapper/207:07:022
139491206173,22phc2sys0-21swapper/307:05:043
55702202169,22sleep10-21swapper/107:08:211
862021740,7sleep0598799cyclictest08:20:250
2541521430,5sleep2598999cyclictest10:05:012
2649621420,3sleep3599099cyclictest10:05:223
139391930,1ptp4l27852-21diskstats07:55:153
5987997528,4cyclictest9-21ksoftirqd/012:04:590
5987996727,5cyclictest9-21ksoftirqd/009:55:120
599099660,25cyclictest29173-21sendmail_mailqu10:10:243
5987996626,5cyclictest9-21ksoftirqd/010:00:140
5987996527,5cyclictest9-21ksoftirqd/012:15:130
5987996527,5cyclictest9-21ksoftirqd/012:15:130
5987996425,10cyclictest9-21ksoftirqd/009:30:010
5987996128,4cyclictest9-21ksoftirqd/012:30:280
5987996125,4cyclictest9-21ksoftirqd/010:40:250
5987996028,4cyclictest9-21ksoftirqd/011:40:130
5987996026,4cyclictest9-21ksoftirqd/011:20:000
5987995926,4cyclictest9-21ksoftirqd/007:30:180
5987995925,10cyclictest9-21ksoftirqd/011:00:250
5987995829,4cyclictest9-21ksoftirqd/009:50:000
5987995825,5cyclictest9-21ksoftirqd/010:05:170
5987995724,4cyclictest9-21ksoftirqd/008:55:250
315272570,5sleep131529-21rt-features10:15:231
599099561,23cyclictest23097-21apt-get10:00:123
5987995624,8cyclictest9-21ksoftirqd/007:40:010
5987995619,4cyclictest9-21ksoftirqd/007:55:240
599099550,24cyclictest14619-21awk11:55:233
598799555,8cyclictest9-21ksoftirqd/008:50:190
598799546,8cyclictest9-21ksoftirqd/009:00:180
598799545,8cyclictest9-21ksoftirqd/011:05:150
5987995413,6cyclictest9-21ksoftirqd/007:46:430
599099531,22cyclictest21630-21irqstats09:55:193
599099530,23cyclictest1300-21snmpd08:01:473
599099521,25cyclictest32038-21sed11:25:173
5987995226,9cyclictest9-21ksoftirqd/010:25:260
5987995028,4cyclictest9-21ksoftirqd/011:00:010
5987995023,9cyclictest9-21ksoftirqd/012:35:190
5987995022,8cyclictest9-21ksoftirqd/010:35:150
5987995021,8cyclictest9-21ksoftirqd/008:25:150
598799493,7cyclictest101ktimersoftd/008:10:010
598799493,6cyclictest9-21ksoftirqd/011:20:110
5987994925,9cyclictest9-21ksoftirqd/007:20:230
5987994925,9cyclictest9-21ksoftirqd/007:20:230
5987994921,8cyclictest9-21ksoftirqd/011:50:120
5987994920,8cyclictest9-21ksoftirqd/009:15:140
5987994916,4cyclictest9-21ksoftirqd/010:53:590
36712490,1sleep00-21swapper/011:35:010
598799484,9cyclictest9-21ksoftirqd/007:40:220
598799480,12cyclictest9-21ksoftirqd/012:28:260
569524834,7sleep30-21swapper/307:10:003
599099470,26cyclictest12649-21switchtime09:35:253
598799477,7cyclictest9-21ksoftirqd/008:00:220
5987994743,2cyclictest111rcuc/008:47:130
5987994743,2cyclictest111rcuc/007:15:220
598799473,5cyclictest101ktimersoftd/007:25:280
598799470,5cyclictest101ktimersoftd/010:15:180
599099460,22cyclictest6744-21df_abs09:25:143
5988994641,3cyclictest25-21ksoftirqd/111:20:001
598799464,8cyclictest9-21ksoftirqd/009:10:120
5987994642,2cyclictest111rcuc/010:34:000
598799462,5cyclictest9-21ksoftirqd/009:20:270
5987994621,7cyclictest9-21ksoftirqd/009:40:240
598799460,7cyclictest101ktimersoftd/010:20:250
598799460,5cyclictest101ktimersoftd/010:45:160
5987994542,2cyclictest111rcuc/009:31:390
598799453,5cyclictest9-21ksoftirqd/012:20:220
5987994527,4cyclictest9-21ksoftirqd/012:15:000
5987994523,9cyclictest9-21ksoftirqd/012:05:230
5987994517,8cyclictest9-21ksoftirqd/011:10:260
598799445,6cyclictest9-21ksoftirqd/008:30:250
598799441,6cyclictest101ktimersoftd/008:10:000
598799440,6cyclictest6440-21tune2fs07:10:150
139391440,0ptp4l401ktimersoftd/311:45:303
598899436,9cyclictest25-21ksoftirqd/112:25:011
598899435,9cyclictest25-21ksoftirqd/110:00:161
5988994310,5cyclictest25-21ksoftirqd/108:40:171
5987994339,3cyclictest111rcuc/011:45:200
598799431,6cyclictest9-21ksoftirqd/008:37:110
139391430,0ptp4l401ktimersoftd/312:38:393
134491430,7getstats599099cyclictest12:16:503
134491430,7getstats599099cyclictest12:16:503
599099421,27cyclictest1300-21snmpd11:39:083
5988994237,3cyclictest25-21ksoftirqd/107:40:001
5988994211,3cyclictest25-21ksoftirqd/111:40:141
598799422,6cyclictest9-21ksoftirqd/009:50:170
598799421,5cyclictest9-21ksoftirqd/011:37:330
598799421,5cyclictest101ktimersoftd/009:05:160
139391420,0ptp4l401ktimersoftd/310:30:303
139391420,0ptp4l401ktimersoftd/309:14:453
599099410,19cyclictest20117-21latency_hist07:40:003
598899419,4cyclictest25-21ksoftirqd/109:40:191
5988994135,3cyclictest25-21ksoftirqd/108:30:001
5988994118,3cyclictest25-21ksoftirqd/111:10:271
5988994111,4cyclictest25-21ksoftirqd/109:10:221
598799415,6cyclictest27147-21runrttasks07:54:090
598799415,6cyclictest27147-21runrttasks07:54:090
598799414,7cyclictest9-21ksoftirqd/010:13:520
598799411,6cyclictest9-21ksoftirqd/011:25:130
598899408,4cyclictest25-21ksoftirqd/112:00:261
598899407,4cyclictest25-21ksoftirqd/108:50:001
5988994036,2cyclictest25-21ksoftirqd/110:39:591
5988994036,2cyclictest25-21ksoftirqd/108:10:001
5988994035,3cyclictest17633-21sh07:35:001
598899402,11cyclictest25-21ksoftirqd/108:10:271
139391400,0ptp4l401ktimersoftd/307:50:003
599099391,19cyclictest0-21swapper/309:40:273
598899397,4cyclictest25-21ksoftirqd/109:55:141
5988993936,2cyclictest25-21ksoftirqd/111:30:111
5988993934,3cyclictest25-21ksoftirqd/112:34:591
5988993934,3cyclictest25-21ksoftirqd/108:40:001
598899391,9cyclictest25-21ksoftirqd/111:45:191
598799393,8cyclictest9-21ksoftirqd/008:15:140
598799390,5cyclictest14405-21kernelversion11:55:190
599099380,25cyclictest22967-21cut12:15:013
5989993826,10cyclictest33-21ksoftirqd/208:52:442
598899388,4cyclictest25-21ksoftirqd/110:05:261
598899386,10cyclictest25-21ksoftirqd/112:05:131
598899384,7cyclictest25-21ksoftirqd/110:10:271
598899384,4cyclictest25-21ksoftirqd/107:50:001
598899384,3cyclictest25-21ksoftirqd/110:30:131
5988993834,2cyclictest25-21ksoftirqd/112:00:011
5988993834,2cyclictest25-21ksoftirqd/108:00:001
5988993834,2cyclictest25-21ksoftirqd/107:25:001
5988993834,2cyclictest25-21ksoftirqd/107:25:001
5988993833,3cyclictest25-21ksoftirqd/111:00:001
5988993833,3cyclictest25-21ksoftirqd/109:10:001
5988993833,3cyclictest25-21ksoftirqd/108:20:001
5988993833,3cyclictest25-21ksoftirqd/107:45:001
5988993833,3cyclictest25-21ksoftirqd/107:15:261
5988993832,3cyclictest25-21ksoftirqd/112:39:591
598899382,9cyclictest25-21ksoftirqd/111:20:121
5990993715,20cyclictest9685-21munin-node08:55:143
5990993714,20cyclictest7898-21vmstat11:40:273
599099370,23cyclictest0-21swapper/309:33:193
5989993731,4cyclictest33-21ksoftirqd/211:13:392
5989993725,10cyclictest33-21ksoftirqd/210:20:162
598899378,4cyclictest25-21ksoftirqd/109:15:221
598899375,4cyclictest25-21ksoftirqd/111:00:261
598899375,3cyclictest121rcu_preempt09:30:271
598899374,4cyclictest25-21ksoftirqd/107:10:191
5988993733,2cyclictest25-21ksoftirqd/110:50:181
5988993733,2cyclictest25-21ksoftirqd/110:25:261
5988993732,3cyclictest25-21ksoftirqd/112:15:271
5988993732,3cyclictest25-21ksoftirqd/112:15:271
5988993732,3cyclictest25-21ksoftirqd/111:55:011
5988993732,3cyclictest25-21ksoftirqd/111:25:181
5988993732,3cyclictest25-21ksoftirqd/110:49:591
5988993732,3cyclictest25-21ksoftirqd/108:20:191
5988993732,3cyclictest25-21ksoftirqd/107:25:201
598899372,7cyclictest25-21ksoftirqd/109:25:191
5990993630,4cyclictest41-21ksoftirqd/309:18:253
5990993629,5cyclictest41-21ksoftirqd/310:48:263
5990993612,21cyclictest28955-21phc2sys12:25:233
5989993631,3cyclictest33-21ksoftirqd/211:19:592
5989993631,3cyclictest33-21ksoftirqd/208:44:592
5989993630,4cyclictest33-21ksoftirqd/207:59:452
5989993630,4cyclictest33-21ksoftirqd/207:27:592
598999360,2cyclictest121rcu_preempt12:12:182
598899367,4cyclictest25-21ksoftirqd/110:20:201
598899364,9cyclictest25-21ksoftirqd/108:30:141
598899364,4cyclictest25-21ksoftirqd/108:00:291
598899364,3cyclictest121rcu_preempt10:40:161
598899363,5cyclictest121rcu_preempt08:50:231
5988993633,2cyclictest25-21ksoftirqd/109:00:011
5988993631,3cyclictest25-21ksoftirqd/111:35:251
5988993631,3cyclictest25-21ksoftirqd/109:00:131
5988993630,4cyclictest25-21ksoftirqd/109:50:121
5988993630,3cyclictest25-21ksoftirqd/107:55:001
5988993630,3cyclictest25-21ksoftirqd/107:55:001
5988993629,4cyclictest25-21ksoftirqd/112:10:571
598799365,7cyclictest9-21ksoftirqd/008:40:190
5987993630,3cyclictest9-21ksoftirqd/009:35:150
5990993530,3cyclictest41-21ksoftirqd/311:05:013
5990993530,3cyclictest41-21ksoftirqd/308:13:043
5989993531,3cyclictest33-21ksoftirqd/209:23:172
5989993529,4cyclictest33-21ksoftirqd/212:30:112
5989993529,4cyclictest33-21ksoftirqd/211:07:472
5989993529,4cyclictest33-21ksoftirqd/211:03:062
5989993529,4cyclictest33-21ksoftirqd/210:13:592
5989993529,4cyclictest33-21ksoftirqd/209:29:192
5989993529,4cyclictest33-21ksoftirqd/208:49:192
5989993529,4cyclictest33-21ksoftirqd/208:05:102
5989993528,5cyclictest33-21ksoftirqd/210:09:502
598899355,3cyclictest25-21ksoftirqd/109:20:191
5988993530,3cyclictest25-21ksoftirqd/109:35:211
5988993529,3cyclictest25-21ksoftirqd/109:45:131
599099344,27cyclictest9532-21cut08:25:013
5990993428,4cyclictest41-21ksoftirqd/309:07:253
599099341,28cyclictest26479-21apt-get09:00:123
5989993428,4cyclictest33-21ksoftirqd/212:39:222
5989993428,4cyclictest33-21ksoftirqd/211:59:502
5989993428,4cyclictest33-21ksoftirqd/210:25:112
5988993429,3cyclictest25-21ksoftirqd/111:10:001
5988993429,2cyclictest25-21ksoftirqd/112:25:201
5990993328,3cyclictest41-21ksoftirqd/312:03:523
5990993327,4cyclictest41-21ksoftirqd/311:52:543
5990993310,20cyclictest9880-21tr10:40:113
5989993328,3cyclictest33-21ksoftirqd/209:45:102
5989993327,4cyclictest33-21ksoftirqd/212:23:242
5989993327,4cyclictest33-21ksoftirqd/210:36:542
5989993327,4cyclictest33-21ksoftirqd/210:18:052
5989993327,4cyclictest33-21ksoftirqd/209:14:432
5989993327,4cyclictest33-21ksoftirqd/207:40:512
5989993327,4cyclictest33-21ksoftirqd/207:33:382
139391330,0ptp4l401ktimersoftd/307:20:223
139391330,0ptp4l401ktimersoftd/307:20:223
599099329,20cyclictest8812-21switchtime10:35:263
599099329,20cyclictest4826-21apt08:15:093
599099329,20cyclictest18242-21cat09:50:013
599099329,20cyclictest1264-21switchtime08:05:283
5990993227,3cyclictest41-21ksoftirqd/311:06:103
5990993227,3cyclictest41-21ksoftirqd/307:51:103
5990993227,3cyclictest41-21ksoftirqd/307:51:103
5990993227,3cyclictest41-21ksoftirqd/307:15:113
5990993226,4cyclictest41-21ksoftirqd/312:24:433
5990993226,4cyclictest41-21ksoftirqd/311:24:173
5990993226,4cyclictest41-21ksoftirqd/308:51:093
5990993226,4cyclictest41-21ksoftirqd/308:48:203
5990993226,4cyclictest41-21ksoftirqd/308:30:073
599099322,26cyclictest2518-21gnome-shell09:22:593
599099322,24cyclictest26391-21apt-get11:15:123
5990993212,18cyclictest16068-21sed08:35:273
5990993210,19cyclictest1287-21/usr/sbin/munin11:30:163
5989993227,3cyclictest33-21ksoftirqd/209:16:472
5989993226,4cyclictest33-21ksoftirqd/210:48:542
5989993226,4cyclictest33-21ksoftirqd/208:14:092
139391320,1ptp4l391rcuc/308:43:113
599099319,20cyclictest1148-21latency10:20:203
5990993126,3cyclictest41-21ksoftirqd/310:15:103
5990993125,4cyclictest41-21ksoftirqd/307:27:083
599099311,27cyclictest3265-21iostat_ios10:25:203
599099311,23cyclictest18286-21apt-get09:50:123
599099310,1cyclictest0-21swapper/312:08:333
5989993126,3cyclictest33-21ksoftirqd/211:41:512
5989993126,3cyclictest33-21ksoftirqd/211:25:022
5989993125,4cyclictest33-21ksoftirqd/212:03:152
5989993125,4cyclictest33-21ksoftirqd/210:58:252
5989993125,4cyclictest33-21ksoftirqd/209:54:342
5989993125,4cyclictest33-21ksoftirqd/208:29:452
5989993125,4cyclictest33-21ksoftirqd/207:52:232
5989993125,4cyclictest33-21ksoftirqd/207:52:232
599099309,18cyclictest15021-21idleruntime10:50:173
599099308,19cyclictest10137-21df_abs08:25:153
5990993025,3cyclictest41-21ksoftirqd/307:43:483
599099301,25cyclictest2518-21gnome-shell12:31:583
5989993025,3cyclictest33-21ksoftirqd/212:25:462
5989993025,3cyclictest33-21ksoftirqd/211:37:182
5989993025,3cyclictest33-21ksoftirqd/209:55:122
5989993024,4cyclictest33-21ksoftirqd/211:52:482
5989993024,4cyclictest33-21ksoftirqd/211:31:222
5989993024,4cyclictest33-21ksoftirqd/210:31:132
5989993024,4cyclictest33-21ksoftirqd/209:43:232
5989992925,2cyclictest33-21ksoftirqd/207:20:002
5989992924,3cyclictest6423-21cut07:10:152
5989992924,3cyclictest33-21ksoftirqd/212:19:442
5989992924,3cyclictest33-21ksoftirqd/212:19:442
5989992924,3cyclictest33-21ksoftirqd/212:05:352
5989992924,3cyclictest33-21ksoftirqd/209:06:242
5989992924,3cyclictest33-21ksoftirqd/208:24:262
5989992924,3cyclictest33-21ksoftirqd/207:49:102
5989992923,4cyclictest33-21ksoftirqd/208:33:312
5990992822,4cyclictest41-21ksoftirqd/311:12:343
599099281,24cyclictest15895-21diskstats07:30:143
5989992823,3cyclictest33-21ksoftirqd/209:40:002
5989992823,3cyclictest33-21ksoftirqd/209:32:172
5989992823,3cyclictest33-21ksoftirqd/208:35:422
5989992823,3cyclictest33-21ksoftirqd/207:20:212
5989992823,3cyclictest33-21ksoftirqd/207:20:212
5989992822,4cyclictest33-21ksoftirqd/209:02:032
5989992817,9cyclictest33-21ksoftirqd/208:55:312
599099271,21cyclictest16847-21apt-get10:55:103
5989992722,3cyclictest33-21ksoftirqd/210:43:212
5989992722,3cyclictest33-21ksoftirqd/207:36:282
5989992721,4cyclictest33-21ksoftirqd/211:24:312
5989992621,3cyclictest33-21ksoftirqd/210:51:232
5989992514,9cyclictest33-21ksoftirqd/211:45:242
5989992318,3cyclictest33-21ksoftirqd/208:00:192
598999229,11cyclictest6966-21latency_hist08:20:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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