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2026-06-04 - 14:19
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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 all highest latencies:
System rackdslot4.osadl.org (updated Thu Jun 04, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
296052233166,22sleep30-21swapper/319:09:163
295782202167,23sleep10-21swapper/119:08:541
295422202169,22sleep20-21swapper/219:08:272
293532198166,21sleep00-21swapper/019:06:030
2265821400,8sleep12995799cyclictest23:00:001
138491690,1ptp4l401ktimersoftd/322:50:213
29958996526,6cyclictest33-21ksoftirqd/200:25:182
29958996526,6cyclictest33-21ksoftirqd/200:25:182
29958996431,8cyclictest33-21ksoftirqd/222:50:122
29958996330,8cyclictest33-21ksoftirqd/223:15:202
29958996228,6cyclictest33-21ksoftirqd/221:54:592
29958996228,4cyclictest33-21ksoftirqd/200:10:182
29958996127,12cyclictest33-21ksoftirqd/222:00:242
29958996125,4cyclictest33-21ksoftirqd/222:10:142
29958996029,9cyclictest33-21ksoftirqd/221:40:132
29958996029,6cyclictest33-21ksoftirqd/220:40:112
29958996024,6cyclictest33-21ksoftirqd/219:20:102
29958996023,6cyclictest33-21ksoftirqd/200:05:132
29958996021,6cyclictest33-21ksoftirqd/223:30:252
2995799607,11cyclictest159832sleep120:08:141
29958995929,3cyclictest33-21ksoftirqd/222:45:112
29958995925,6cyclictest33-21ksoftirqd/223:10:012
29958995924,5cyclictest33-21ksoftirqd/223:45:002
29958995924,5cyclictest33-21ksoftirqd/220:20:102
29958995923,5cyclictest33-21ksoftirqd/223:50:012
29958995923,5cyclictest33-21ksoftirqd/222:40:112
29958995831,4cyclictest33-21ksoftirqd/200:20:212
29958995824,8cyclictest33-21ksoftirqd/223:00:252
29958995823,5cyclictest33-21ksoftirqd/221:30:252
29958995822,5cyclictest33-21ksoftirqd/223:45:122
29958995822,5cyclictest33-21ksoftirqd/223:35:132
29958995822,5cyclictest33-21ksoftirqd/222:10:012
2995799587,12cyclictest30733-21irqrtprio19:10:191
2995799587,11cyclictest5843-21/usr/sbin/munin00:35:131
29958995721,5cyclictest33-21ksoftirqd/220:30:072
29958995719,7cyclictest33-21ksoftirqd/222:20:122
2995799579,12cyclictest2192-21switchtime22:15:251
29956995723,3cyclictest9-21ksoftirqd/022:25:170
134991570,6getstats2995999cyclictest20:56:173
29958995624,5cyclictest33-21ksoftirqd/219:20:012
29958995621,6cyclictest33-21ksoftirqd/220:50:062
2995799569,11cyclictest22388-21seq21:50:271
2995799567,13cyclictest27016-21ps20:40:181
2995799567,10cyclictest29589-21mailstats22:05:251
29958995527,6cyclictest33-21ksoftirqd/219:40:202
29958995527,3cyclictest33-21ksoftirqd/200:35:242
29958995526,4cyclictest33-21ksoftirqd/222:15:262
29958995525,3cyclictest33-21ksoftirqd/223:55:192
29958995525,3cyclictest33-21ksoftirqd/223:25:182
29958995521,5cyclictest33-21ksoftirqd/200:00:102
2995799558,18cyclictest19563-21phc2sys21:45:211
2995799556,13cyclictest3814-21cut00:30:181
2995799556,11cyclictest13354-21expr21:35:131
138491550,1ptp4l401ktimersoftd/323:20:123
138491550,1ptp4l401ktimersoftd/323:20:123
29958995426,3cyclictest33-21ksoftirqd/219:11:052
29958995425,7cyclictest33-21ksoftirqd/221:35:202
29958995422,5cyclictest33-21ksoftirqd/220:10:072
2995799548,18cyclictest27008-21/usr/sbin/munin00:10:251
2995799546,12cyclictest30756-21/usr/sbin/munin23:15:141
2995799546,12cyclictest15701-21cpuspeed_turbos21:40:121
5192530,3sleep10-21swapper/100:25:131
5192530,3sleep10-21swapper/100:25:131
29958995327,4cyclictest33-21ksoftirqd/221:10:112
29958995325,7cyclictest33-21ksoftirqd/222:35:242
29958995324,6cyclictest33-21ksoftirqd/223:20:102
29958995324,6cyclictest33-21ksoftirqd/223:20:102
29958995319,6cyclictest33-21ksoftirqd/222:25:132
2995899524,8cyclictest30253-21sendmail-msp00:19:592
29958995220,5cyclictest33-21ksoftirqd/221:20:192
29958995220,3cyclictest33-21ksoftirqd/219:30:182
2995699523,5cyclictest9-21ksoftirqd/022:40:110
280892520,3sleep3401ktimersoftd/323:10:123
29958995122,5cyclictest33-21ksoftirqd/220:10:012
2995799519,11cyclictest23638-21/usr/sbin/munin23:00:181
2995799516,18cyclictest23619-21latency20:30:151
2995799516,11cyclictest26184-21cut23:05:171
2995699515,9cyclictest9-21ksoftirqd/020:10:120
2995699515,10cyclictest9-21ksoftirqd/022:00:240
2995699514,8cyclictest9-21ksoftirqd/022:20:140
2995899506,6cyclictest33-21ksoftirqd/220:37:052
2995899504,6cyclictest6690-21latency_hist19:40:002
29958995024,4cyclictest33-21ksoftirqd/220:00:222
2995699506,9cyclictest9-21ksoftirqd/021:20:160
2995699506,9cyclictest9-21ksoftirqd/019:50:090
2995699505,9cyclictest9-21ksoftirqd/021:30:250
2995699505,9cyclictest9-21ksoftirqd/021:00:110
2995699503,6cyclictest9-21ksoftirqd/000:00:160
2995699502,5cyclictest9-21ksoftirqd/023:41:380
2995899495,9cyclictest33-21ksoftirqd/221:55:242
2995899495,6cyclictest33-21ksoftirqd/221:45:012
2995899494,7cyclictest33-21ksoftirqd/221:25:262
29958994920,8cyclictest33-21ksoftirqd/221:00:162
29958994915,5cyclictest33-21ksoftirqd/219:30:002
2995799496,10cyclictest2270-21taskset19:20:191
2995699495,9cyclictest9-21ksoftirqd/022:59:590
2995699494,8cyclictest9-21ksoftirqd/022:35:170
2995699494,10cyclictest9-21ksoftirqd/023:25:230
2995699492,6cyclictest9-21ksoftirqd/019:10:190
2995699490,13cyclictest9-21ksoftirqd/023:00:250
2995899483,7cyclictest33-21ksoftirqd/223:15:012
2995799487,11cyclictest7621-21runrttasks22:27:171
2995799487,11cyclictest28961-21cstates20:50:091
2995799487,10cyclictest13735-21grep22:40:171
2995699486,9cyclictest9-21ksoftirqd/020:30:130
2995699486,6cyclictest29620-21ls00:15:260
2995699484,8cyclictest9-21ksoftirqd/019:40:210
2995699483,8cyclictest9-21ksoftirqd/020:20:090
2995699482,6cyclictest9-21ksoftirqd/021:55:250
2995699480,8cyclictest0-21swapper/022:50:140
29958994714,5cyclictest33-21ksoftirqd/222:58:262
2995799478,11cyclictest7182-21ls19:40:101
2995799477,11cyclictest16466-21cpuspeed_turbos20:10:091
2995799476,11cyclictest2606-21/usr/sbin/munin21:10:081
2995799476,10cyclictest0-21swapper/122:50:161
2995699475,9cyclictest9-21ksoftirqd/021:40:120
2995699475,9cyclictest9-21ksoftirqd/000:07:080
2995699475,10cyclictest9-21ksoftirqd/022:30:140
2995699474,9cyclictest9-21ksoftirqd/023:20:180
2995699474,9cyclictest9-21ksoftirqd/023:20:180
2995699474,9cyclictest9-21ksoftirqd/000:35:140
2995699473,8cyclictest9-21ksoftirqd/023:10:160
2995699471,5cyclictest9-21ksoftirqd/021:50:170
2995899466,2cyclictest33-21ksoftirqd/222:30:172
2995899465,5cyclictest33-21ksoftirqd/220:30:002
2995899463,8cyclictest33-21ksoftirqd/200:30:132
2995899461,5cyclictest33-21ksoftirqd/220:50:012
2995799468,16cyclictest12669-21seq22:39:051
2995799466,11cyclictest24796-21sed21:55:261
2995799465,9cyclictest0-21swapper/120:20:171
29957994611,10cyclictest447-21gmain19:33:351
2995699465,8cyclictest9-21ksoftirqd/000:10:210
2995699464,9cyclictest9-21ksoftirqd/023:35:230
2995699461,6cyclictest9-21ksoftirqd/023:16:120
2995699460,5cyclictest9-21ksoftirqd/021:14:350
2995899456,5cyclictest33-21ksoftirqd/219:50:172
2995799456,12cyclictest9376-21ls23:35:261
2995799456,11cyclictest223-21systemd-journal19:36:351
2995699454,8cyclictest9-21ksoftirqd/022:15:140
2995699453,5cyclictest9-21ksoftirqd/021:25:140
2995699452,8cyclictest9-21ksoftirqd/023:30:250
2995699452,5cyclictest9-21ksoftirqd/000:20:240
2995699451,6cyclictest9-21ksoftirqd/021:05:540
2995699450,5cyclictest9-21ksoftirqd/023:45:140
2995899446,2cyclictest33-21ksoftirqd/219:50:002
2995899445,6cyclictest33-21ksoftirqd/221:17:262
2995799448,10cyclictest14934-21cron23:50:011
2995799444,8cyclictest31086-21/usr/sbin/munin22:10:151
29957994438,3cyclictest30183-21cron00:20:001
2995699445,8cyclictest9-21ksoftirqd/023:55:110
2995699443,6cyclictest9-21ksoftirqd/000:30:160
2995699442,6cyclictest9-21ksoftirqd/019:20:100
2995699440,7cyclictest9-21ksoftirqd/020:59:340
2995699440,5cyclictest0-21swapper/020:06:330
2995699440,5cyclictest0-21swapper/019:35:000
138491440,0ptp4l401ktimersoftd/319:25:283
2995899435,5cyclictest31257-21chrt20:55:362
2995899433,7cyclictest33-21ksoftirqd/220:20:012
2995899430,2cyclictest121rcu_preempt20:00:002
2995799437,9cyclictest0-21swapper/122:50:001
2995799437,10cyclictest31227-21seq20:55:151
2995799436,11cyclictest28343-21fschecks_count23:10:141
2995799436,11cyclictest10991-21cut19:50:141
2995799435,12cyclictest27382-21timerwakeupswit22:00:281
2995699432,5cyclictest9-21ksoftirqd/019:30:000
2995699430,5cyclictest9-21ksoftirqd/022:05:270
138491430,0ptp4l401ktimersoftd/319:54:303
2995799429,18cyclictest11947-21grep21:30:211
2995699425,9cyclictest9-21ksoftirqd/023:50:010
2995699424,8cyclictest9-21ksoftirqd/020:50:110
2995699423,8cyclictest9-21ksoftirqd/022:13:540
2995699422,4cyclictest9-21ksoftirqd/020:41:190
2995699421,5cyclictest9-21ksoftirqd/020:37:420
138491420,0ptp4l401ktimersoftd/322:55:203
138491420,0ptp4l401ktimersoftd/322:36:093
138491420,0ptp4l401ktimersoftd/300:35:423
29959994136,3cyclictest352-21cron19:20:013
2995899412,5cyclictest33-21ksoftirqd/221:07:442
2995799418,11cyclictest8424-21cstates22:30:141
2995699415,9cyclictest9-21ksoftirqd/000:25:160
2995699415,9cyclictest9-21ksoftirqd/000:25:160
2995799406,11cyclictest20450-21cpuspeed00:00:111
2995799405,11cyclictest10327-21cpuspeed23:40:131
2995699400,4cyclictest9-21ksoftirqd/019:46:020
138491400,0ptp4l401ktimersoftd/322:25:133
2995799396,9cyclictest0-21swapper/122:20:121
2995699395,9cyclictest9-21ksoftirqd/022:45:220
2995699394,9cyclictest9-21ksoftirqd/020:00:120
2995699393,7cyclictest9-21ksoftirqd/021:35:180
138491390,0ptp4l401ktimersoftd/319:20:213
2995799386,11cyclictest8081-21latency_hist21:24:591
2995799383,10cyclictest0-21swapper/123:55:151
2995699382,5cyclictest9-21ksoftirqd/023:05:140
2995699381,3cyclictest9-21ksoftirqd/020:47:560
138491380,0ptp4l401ktimersoftd/323:05:243
29959993733,3cyclictest41-21ksoftirqd/322:50:003
29959993731,4cyclictest41-21ksoftirqd/323:38:013
29959993731,4cyclictest41-21ksoftirqd/321:41:193
29959993731,4cyclictest41-21ksoftirqd/321:37:343
29957993730,5cyclictest25-21ksoftirqd/119:56:111
2995699373,8cyclictest9-21ksoftirqd/021:20:010
29959993630,4cyclictest41-21ksoftirqd/321:47:013
29959993629,4cyclictest41-21ksoftirqd/321:27:463
2995799365,10cyclictest223-21systemd-journal20:00:421
29957993630,4cyclictest25-21ksoftirqd/120:19:221
138491360,13ptp4l401ktimersoftd/323:45:153
29959993529,4cyclictest41-21ksoftirqd/322:43:093
29959993529,4cyclictest41-21ksoftirqd/321:53:203
29959993529,4cyclictest41-21ksoftirqd/321:34:243
29959993529,4cyclictest41-21ksoftirqd/300:31:083
29959993528,4cyclictest41-21ksoftirqd/321:05:293
29957993529,4cyclictest25-21ksoftirqd/123:25:551
29957993529,4cyclictest25-21ksoftirqd/119:16:151
2995699352,6cyclictest9-21ksoftirqd/019:40:010
29959993429,3cyclictest41-21ksoftirqd/323:20:003
29959993429,3cyclictest41-21ksoftirqd/319:48:193
29959993429,3cyclictest41-21ksoftirqd/300:00:013
29959993428,4cyclictest41-21ksoftirqd/323:51:213
29959993428,4cyclictest41-21ksoftirqd/322:10:313
29959993428,4cyclictest41-21ksoftirqd/321:16:513
29959993428,4cyclictest41-21ksoftirqd/319:58:173
2995799348,11cyclictest2613-21chrt23:24:421
2995799348,11cyclictest2613-21chrt23:24:421
2995799346,11cyclictest5590-21cat21:20:001
29957993429,3cyclictest25-21ksoftirqd/120:26:551
29957993428,4cyclictest25-21ksoftirqd/123:46:061
50798330,10rtkit-daemon0-21swapper/321:04:313
29959993328,3cyclictest41-21ksoftirqd/322:00:143
29959993328,3cyclictest41-21ksoftirqd/320:33:133
29959993328,3cyclictest41-21ksoftirqd/319:40:013
29959993327,4cyclictest41-21ksoftirqd/322:30:263
29959993327,4cyclictest41-21ksoftirqd/322:22:423
29959993327,4cyclictest41-21ksoftirqd/321:59:293
2995799338,11cyclictest1046-21awk21:00:211
29957993327,4cyclictest25-21ksoftirqd/120:38:111
29957993327,4cyclictest25-21ksoftirqd/100:07:201
2995699332,5cyclictest9-21ksoftirqd/021:45:020
2995699331,6cyclictest9-21ksoftirqd/019:59:590
2995699330,4cyclictest0-21swapper/020:16:270
138491330,0ptp4l401ktimersoftd/300:10:233
29959993228,2cyclictest138491ptp4l22:15:313
29959993227,3cyclictest41-21ksoftirqd/320:39:423
29959993227,3cyclictest41-21ksoftirqd/300:23:283
29959993227,3cyclictest41-21ksoftirqd/300:16:533
29959993227,3cyclictest41-21ksoftirqd/300:05:063
29959993226,4cyclictest41-21ksoftirqd/323:00:143
29959993226,4cyclictest41-21ksoftirqd/320:19:323
29959993226,4cyclictest41-21ksoftirqd/319:31:303
2995799328,10cyclictest6932-21date23:30:251
2995799326,11cyclictest31957-21/usr/sbin/munin00:20:251
29957993227,3cyclictest25-21ksoftirqd/120:48:221
29957993226,4cyclictest25-21ksoftirqd/119:46:201
29956993227,3cyclictest9-21ksoftirqd/019:18:440
138491320,0ptp4l401ktimersoftd/322:06:403
29959993126,3cyclictest41-21ksoftirqd/320:04:163
29959993126,3cyclictest41-21ksoftirqd/319:15:013
29959993125,4cyclictest41-21ksoftirqd/320:49:403
29957993125,4cyclictest25-21ksoftirqd/119:29:071
29959993024,4cyclictest41-21ksoftirqd/323:33:233
138491300,0ptp4l401ktimersoftd/323:44:143
138491300,0ptp4l401ktimersoftd/320:22:503
138491300,0ptp4l401ktimersoftd/300:26:493
138491300,0ptp4l401ktimersoftd/300:26:493
29959992925,3cyclictest41-21ksoftirqd/321:24:593
29959992924,3cyclictest41-21ksoftirqd/321:14:043
29956992922,4cyclictest9-21ksoftirqd/020:26:430
138491290,0ptp4l401ktimersoftd/323:25:123
29959992823,3cyclictest41-21ksoftirqd/320:52:353
29959992823,3cyclictest41-21ksoftirqd/300:01:013
29959992722,3cyclictest41-21ksoftirqd/320:40:143
29959992720,4cyclictest41-21ksoftirqd/320:28:533
29959992621,3cyclictest41-21ksoftirqd/320:10:093
29959992620,4cyclictest41-21ksoftirqd/320:06:523
29959992520,3cyclictest41-21ksoftirqd/319:40:163
29957992419,3cyclictest25-21ksoftirqd/121:08:431
29957992110,8cyclictest8850-21/usr/sbin/munin21:25:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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