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2026-04-29 - 15:18
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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 Wed Apr 29, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591231166,22phc2sys0-21swapper/307:07:153
227532200167,22sleep10-21swapper/107:08:281
226642200166,22sleep20-21swapper/207:07:232
227842199167,21sleep00-21swapper/007:08:500
23165996531,7cyclictest9-21ksoftirqd/008:44:590
23165996430,7cyclictest9-21ksoftirqd/011:00:000
23165996331,5cyclictest9-21ksoftirqd/008:25:270
23165996329,7cyclictest9-21ksoftirqd/007:25:010
23165996327,7cyclictest9-21ksoftirqd/012:10:010
23165996230,7cyclictest9-21ksoftirqd/012:20:140
23165996230,6cyclictest9-21ksoftirqd/008:35:140
23165996228,7cyclictest9-21ksoftirqd/010:00:160
23165996228,6cyclictest9-21ksoftirqd/012:35:000
23165996228,6cyclictest9-21ksoftirqd/011:05:000
23165996228,6cyclictest9-21ksoftirqd/009:40:020
23165996131,4cyclictest9-21ksoftirqd/008:20:230
23165996130,6cyclictest9-21ksoftirqd/011:20:180
23165996130,6cyclictest9-21ksoftirqd/011:05:180
23165996130,5cyclictest9-21ksoftirqd/011:40:190
23165996130,4cyclictest9-21ksoftirqd/007:10:190
23165996129,6cyclictest9-21ksoftirqd/011:10:260
23165996129,6cyclictest9-21ksoftirqd/008:35:010
23165996030,6cyclictest9-21ksoftirqd/009:30:170
23165996030,5cyclictest9-21ksoftirqd/008:15:250
23165996029,6cyclictest9-21ksoftirqd/010:10:170
23165996027,7cyclictest9-21ksoftirqd/011:25:140
23165996027,6cyclictest9-21ksoftirqd/010:45:180
23165996027,4cyclictest9-21ksoftirqd/012:30:000
23165996026,6cyclictest9-21ksoftirqd/012:35:130
23165995927,6cyclictest9-21ksoftirqd/007:40:150
23165995927,4cyclictest9-21ksoftirqd/007:50:240
23165995927,11cyclictest9-21ksoftirqd/008:05:140
23165995926,6cyclictest9-21ksoftirqd/012:10:180
23165995926,4cyclictest9-21ksoftirqd/011:50:010
23165995926,4cyclictest9-21ksoftirqd/010:20:260
23165995925,4cyclictest9-21ksoftirqd/008:45:180
23165995829,5cyclictest9-21ksoftirqd/010:15:250
23165995829,5cyclictest9-21ksoftirqd/009:15:260
23165995828,11cyclictest9-21ksoftirqd/012:15:160
23165995828,10cyclictest9-21ksoftirqd/011:50:140
23165995827,6cyclictest9-21ksoftirqd/009:50:170
23165995826,10cyclictest9-21ksoftirqd/010:40:120
23165995823,6cyclictest9-21ksoftirqd/010:30:160
2316699574,11cyclictest20258-21latency_hist10:20:001
2316699574,11cyclictest16048-21hwlatdetect09:05:161
2316699574,11cyclictest12386-21sshd10:01:371
23165995729,4cyclictest9-21ksoftirqd/007:35:000
23165995727,7cyclictest9-21ksoftirqd/007:35:150
23165995726,7cyclictest9-21ksoftirqd/007:55:130
23165995726,6cyclictest9-21ksoftirqd/011:15:010
23165995724,9cyclictest9-21ksoftirqd/012:00:160
23165995724,6cyclictest9-21ksoftirqd/009:00:010
2316699565,11cyclictest29511-21tr08:25:241
2316699564,11cyclictest26998-21mailstats09:25:251
2316699564,11cyclictest20509-21date09:15:001
2316699563,10cyclictest0-21swapper/109:15:151
23166995610,10cyclictest24530-21awk11:30:261
23165995629,7cyclictest9-21ksoftirqd/010:05:230
23165995628,7cyclictest9-21ksoftirqd/009:40:160
23165995625,4cyclictest9-21ksoftirqd/009:20:180
23165995623,4cyclictest9-21ksoftirqd/011:55:130
23165995623,4cyclictest9-21ksoftirqd/009:05:250
23165995622,6cyclictest9-21ksoftirqd/009:10:130
23165995622,4cyclictest9-21ksoftirqd/009:45:260
2316699555,12cyclictest27554-21date11:40:011
2316699554,11cyclictest30003-21date11:45:001
2316699553,11cyclictest484-21latency_hist08:35:001
2316699553,11cyclictest27553-1kworker/1:2H07:20:001
2316699553,11cyclictest0-21swapper/109:35:221
2316699552,11cyclictest4281-21missed_timers07:35:191
23165995526,7cyclictest9-21ksoftirqd/011:35:150
23165995520,4cyclictest9-21ksoftirqd/009:55:150
2316699546,9cyclictest18652-21needreboot12:25:231
2316699545,11cyclictest24874-21awk09:20:261
2316699544,11cyclictest7584-21date11:00:001
2316699544,10cyclictest12587-21date11:10:011
2316699543,11cyclictest24268-21cat07:10:191
2316699543,11cyclictest23432-21cat12:35:191
2316699543,11cyclictest0-21swapper/110:10:271
2316699543,10cyclictest11133-21latency12:10:191
2316699543,10cyclictest10315-21sed10:00:001
23165995428,5cyclictest9-21ksoftirqd/010:35:110
23165995424,5cyclictest9-21ksoftirqd/009:00:260
23165995421,10cyclictest9-21ksoftirqd/010:55:010
254202530,2sleep30-21swapper/311:35:143
2316699538,10cyclictest29263-21/usr/sbin/munin10:35:251
2316699537,10cyclictest26177-21/usr/sbin/munin08:20:151
2316699537,10cyclictest223-21systemd-journal07:55:391
2316699534,17cyclictest19376-21cat11:20:251
2316699532,12cyclictest434-21/usr/sbin/munin09:40:221
23165995325,7cyclictest9-21ksoftirqd/008:10:140
23165995323,10cyclictest9-21ksoftirqd/007:15:160
23165995319,4cyclictest9-21ksoftirqd/007:25:180
23165995225,9cyclictest9-21ksoftirqd/011:30:190
23165995225,6cyclictest9-21ksoftirqd/008:00:210
92702510,3sleep20-21swapper/212:05:262
2316699517,10cyclictest31062-21forks07:25:171
2316699516,9cyclictest14363-21/usr/sbin/munin09:00:231
2316699513,11cyclictest3157-21cpuspeed08:40:131
8562500,1sleep30-21swapper/307:30:113
2316699506,10cyclictest23857-21/usr/sbin/munin10:25:191
2316699504,11cyclictest0-21swapper/110:45:161
2316699503,11cyclictest1713-21cat07:30:171
2316599508,3cyclictest9-21ksoftirqd/008:50:140
2316599506,5cyclictest9-21ksoftirqd/007:45:160
23165995022,4cyclictest9-21ksoftirqd/010:25:170
138491500,1ptp4l401ktimersoftd/311:00:273
2316699498,10cyclictest16429-21/usr/sbin/munin08:00:161
2316699496,9cyclictest15033-21chrt10:09:001
2316699492,18cyclictest0-21swapper/107:40:241
2316699486,9cyclictest7623-21chrt08:48:201
2316699483,14cyclictest25194-21runrttasks10:30:041
2316699475,10cyclictest32114-21chrt10:42:001
2316699472,16cyclictest9704-21timerandwakeup07:45:241
2316699466,10cyclictest17036-21taskset12:22:411
2316699463,8cyclictest1628-21sensors11:50:241
2316599462,6cyclictest9-21ksoftirqd/009:25:130
2316699454,9cyclictest22161-21sshd11:26:381
2316699454,7cyclictest2692-21cpu11:55:121
2316699454,7cyclictest2315-21gnome-shell11:11:581
2316699453,9cyclictest21704-21ptp4l-jitter10:20:221
2316699453,14cyclictest14842-21apt-get11:15:011
23168994338,3cyclictest25283-21ls09:25:013
2316699434,9cyclictest4606-21/usr/sbin/munin09:45:271
2316699432,9cyclictest8664-21ls12:05:191
23166994311,29cyclictest5489-21df_abs12:00:131
138491430,0ptp4l401ktimersoftd/311:34:023
138491430,0ptp4l401ktimersoftd/308:05:273
50798420,11rtkit-daemon0-21swapper/208:06:052
2316799421,38cyclictest13473-21fschecks_count09:00:152
2316699424,7cyclictest19929-21apt-get12:30:111
2316699424,10cyclictest12385-21chrt08:55:451
138491420,0ptp4l401ktimersoftd/310:52:383
138491420,0ptp4l401ktimersoftd/307:35:203
2316699413,8cyclictest1258-21awk08:35:161
23168994035,3cyclictest41-21ksoftirqd/309:20:003
23167994034,4cyclictest33-21ksoftirqd/210:50:012
138491400,1ptp4l401ktimersoftd/312:16:383
138491400,0ptp4l401ktimersoftd/310:41:383
23167993934,3cyclictest33-21ksoftirqd/209:50:002
138491390,1ptp4l0-21swapper/312:00:143
23168993831,4cyclictest13029-21wc07:55:013
2316699385,16cyclictest12016-21needreboot07:50:211
67342374,2sleep2121rcu_preempt07:40:222
23168993730,5cyclictest41-21ksoftirqd/307:15:063
2316699372,8cyclictest9333-21ps08:50:211
23168993631,3cyclictest41-21ksoftirqd/309:35:123
23168993630,4cyclictest41-21ksoftirqd/310:36:223
23168993629,5cyclictest41-21ksoftirqd/312:07:313
23167993630,4cyclictest33-21ksoftirqd/209:14:252
23167993630,4cyclictest33-21ksoftirqd/207:59:542
23167993629,4cyclictest33-21ksoftirqd/210:10:082
138491360,4ptp4l401ktimersoftd/311:55:163
138491360,0ptp4l401ktimersoftd/310:47:043
138491360,0ptp4l401ktimersoftd/309:10:213
23168993529,4cyclictest41-21ksoftirqd/311:26:473
23168993529,4cyclictest41-21ksoftirqd/310:07:013
23168993529,4cyclictest41-21ksoftirqd/308:21:383
23168993528,4cyclictest41-21ksoftirqd/311:40:103
23168993527,5cyclictest41-21ksoftirqd/310:25:293
23167993530,3cyclictest33-21ksoftirqd/209:55:002
23167993529,4cyclictest33-21ksoftirqd/212:18:462
23167993529,4cyclictest33-21ksoftirqd/211:59:402
23167993529,4cyclictest33-21ksoftirqd/210:58:582
23167993529,4cyclictest33-21ksoftirqd/210:50:042
23167993529,4cyclictest33-21ksoftirqd/210:30:302
23167993529,4cyclictest33-21ksoftirqd/209:23:512
23167993529,4cyclictest33-21ksoftirqd/208:26:472
23167993529,4cyclictest33-21ksoftirqd/208:21:162
2316699352,9cyclictest0-21swapper/108:15:251
150382350,3sleep30-21swapper/311:15:003
23168993428,4cyclictest41-21ksoftirqd/310:04:553
23168993428,4cyclictest41-21ksoftirqd/309:46:553
23168993428,4cyclictest41-21ksoftirqd/309:32:463
23168993427,4cyclictest41-21ksoftirqd/309:25:373
23167993429,3cyclictest33-21ksoftirqd/207:19:032
23167993428,4cyclictest33-21ksoftirqd/212:20:342
23167993428,4cyclictest33-21ksoftirqd/212:11:032
23167993428,4cyclictest33-21ksoftirqd/212:05:002
23167993428,4cyclictest33-21ksoftirqd/211:42:322
23167993428,4cyclictest33-21ksoftirqd/210:39:332
23167993428,4cyclictest33-21ksoftirqd/208:19:362
23167993427,4cyclictest33-21ksoftirqd/211:38:112
138491340,0ptp4l401ktimersoftd/307:55:123
23168993328,3cyclictest41-21ksoftirqd/311:24:483
23168993328,3cyclictest41-21ksoftirqd/309:00:013
23168993328,3cyclictest41-21ksoftirqd/308:05:003
23168993327,4cyclictest41-21ksoftirqd/310:22:533
23168993327,4cyclictest41-21ksoftirqd/310:14:063
23168993327,4cyclictest41-21ksoftirqd/308:33:253
23168993326,5cyclictest41-21ksoftirqd/312:35:273
23167993328,3cyclictest33-21ksoftirqd/212:29:372
23167993328,3cyclictest33-21ksoftirqd/209:06:302
23167993327,4cyclictest33-21ksoftirqd/212:36:552
23167993327,4cyclictest33-21ksoftirqd/211:50:332
23167993327,4cyclictest33-21ksoftirqd/211:15:322
23167993327,4cyclictest33-21ksoftirqd/210:09:202
23167993327,4cyclictest33-21ksoftirqd/210:02:102
23167993327,4cyclictest33-21ksoftirqd/209:55:412
23167993326,4cyclictest33-21ksoftirqd/211:30:402
23167993326,4cyclictest33-21ksoftirqd/208:40:102
2316699336,11cyclictest30063-21chrt09:33:361
23166993328,3cyclictest25-21ksoftirqd/109:52:581
138491330,0ptp4l401ktimersoftd/308:35:243
138491330,0ptp4l401ktimersoftd/307:40:263
23168993228,3cyclictest391rcuc/307:10:173
23168993227,3cyclictest41-21ksoftirqd/311:49:383
23168993227,3cyclictest41-21ksoftirqd/310:57:253
23168993227,3cyclictest41-21ksoftirqd/307:45:153
23168993226,4cyclictest41-21ksoftirqd/312:31:223
23168993226,4cyclictest41-21ksoftirqd/312:28:213
23168993226,4cyclictest41-21ksoftirqd/309:58:583
23167993227,3cyclictest33-21ksoftirqd/211:01:352
23167993227,3cyclictest33-21ksoftirqd/210:43:122
23167993227,3cyclictest33-21ksoftirqd/210:20:002
23167993227,3cyclictest33-21ksoftirqd/209:39:102
23167993227,3cyclictest33-21ksoftirqd/207:49:252
23167993226,4cyclictest33-21ksoftirqd/211:10:102
23167993226,4cyclictest33-21ksoftirqd/211:06:082
23167993226,4cyclictest33-21ksoftirqd/209:31:222
23167993226,4cyclictest33-21ksoftirqd/207:37:002
23167993226,4cyclictest33-21ksoftirqd/207:29:252
23167993225,4cyclictest33-21ksoftirqd/208:37:262
2316699327,11cyclictest4780-21sshd10:53:171
2316699324,14cyclictest31989-21taskset11:46:231
23166993226,4cyclictest25-21ksoftirqd/108:12:101
23168993127,3cyclictest41-21ksoftirqd/307:25:183
23168993126,3cyclictest41-21ksoftirqd/307:25:013
23168993125,4cyclictest41-21ksoftirqd/310:30:513
23168993125,3cyclictest41-21ksoftirqd/308:45:093
23167993126,3cyclictest33-21ksoftirqd/209:44:072
23167993126,3cyclictest33-21ksoftirqd/208:49:532
23167993126,3cyclictest33-21ksoftirqd/207:52:402
23167993125,4cyclictest33-21ksoftirqd/212:32:502
23167993125,4cyclictest33-21ksoftirqd/208:53:472
23167993125,4cyclictest33-21ksoftirqd/208:02:082
23167993125,4cyclictest33-21ksoftirqd/207:13:022
2316699316,11cyclictest20247-21taskset08:07:591
23168993025,3cyclictest41-21ksoftirqd/309:40:083
23167993025,3cyclictest33-21ksoftirqd/208:12:242
23167993025,3cyclictest33-21ksoftirqd/207:24:432
23167993024,4cyclictest33-21ksoftirqd/211:25:352
23167993024,4cyclictest33-21ksoftirqd/209:27:202
23167993024,4cyclictest33-21ksoftirqd/208:30:112
138491300,0ptp4l401ktimersoftd/309:50:263
138491300,0ptp4l401ktimersoftd/308:10:223
23168992925,2cyclictest41-21ksoftirqd/312:21:103
23168992924,3cyclictest41-21ksoftirqd/312:11:093
23168992924,3cyclictest41-21ksoftirqd/308:29:413
23168992923,4cyclictest41-21ksoftirqd/311:16:403
23167992923,4cyclictest33-21ksoftirqd/209:19:462
23166992924,3cyclictest25-21ksoftirqd/107:20:111
23166992923,4cyclictest25-21ksoftirqd/111:04:441
138491290,0ptp4l401ktimersoftd/309:03:233
23168992823,3cyclictest41-21ksoftirqd/308:41:363
23168992822,4cyclictest41-21ksoftirqd/311:08:263
23168992822,4cyclictest41-21ksoftirqd/308:17:413
23168992817,9cyclictest41-21ksoftirqd/310:15:183
23167992823,3cyclictest33-21ksoftirqd/211:46:132
23167992823,3cyclictest33-21ksoftirqd/210:26:322
23167992823,3cyclictest33-21ksoftirqd/208:56:532
23167992822,4cyclictest33-21ksoftirqd/210:21:442
23166992823,3cyclictest25-21ksoftirqd/112:15:221
23168992721,4cyclictest41-21ksoftirqd/311:53:593
23168992621,3cyclictest41-21ksoftirqd/309:06:123
23167992620,4cyclictest33-21ksoftirqd/207:34:472
23168992521,3cyclictest41-21ksoftirqd/308:50:113
2316799230,22cyclictest0-21swapper/211:24:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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