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2025-12-20 - 11:00
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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 rackdslot2.osadl.org (updated Sat Dec 20, 2025 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9452235169,22sleep30-21swapper/319:08:353
9112226159,22sleep20-21swapper/219:08:092
7502203169,23sleep10-21swapper/119:06:041
8592202168,23sleep00-21swapper/019:07:270
1392911240,1ptp4l11264-21iostat_ios00:00:213
139291910,1ptp4l28533-21netstat00:35:223
1356997518,55cyclictest0-21swapper/120:00:251
135699728,58cyclictest0-21swapper/123:05:261
12902720,3sleep10-21swapper/122:30:261
135799710,68cyclictest23312-21kworker/2:020:05:062
1356996333,4cyclictest25-21ksoftirqd/119:45:161
1355996328,4cyclictest9-21ksoftirqd/022:40:000
1356996232,3cyclictest25-21ksoftirqd/119:10:211
1356996231,4cyclictest25-21ksoftirqd/120:35:151
1356996229,4cyclictest25-21ksoftirqd/120:40:211
1356996128,4cyclictest25-21ksoftirqd/123:50:161
1355996128,4cyclictest9-21ksoftirqd/023:40:250
1356996030,4cyclictest25-21ksoftirqd/123:20:241
1356996028,11cyclictest25-21ksoftirqd/120:15:001
1356996026,4cyclictest25-21ksoftirqd/100:15:191
1356996024,4cyclictest25-21ksoftirqd/100:00:211
1355996032,4cyclictest9-21ksoftirqd/022:50:210
1356995928,4cyclictest25-21ksoftirqd/123:15:191
1356995828,4cyclictest25-21ksoftirqd/122:15:241
1356995730,4cyclictest25-21ksoftirqd/122:20:231
1356995728,4cyclictest25-21ksoftirqd/119:40:141
1356995724,4cyclictest25-21ksoftirqd/119:35:001
1356995724,3cyclictest25-21ksoftirqd/121:35:181
171682560,6sleep341-21ksoftirqd/323:05:153
1356995627,4cyclictest25-21ksoftirqd/100:36:411
1356995626,4cyclictest25-21ksoftirqd/121:05:281
1356995624,3cyclictest25-21ksoftirqd/120:05:171
139291550,1ptp4l401ktimersoftd/323:46:193
139291550,1ptp4l401ktimersoftd/320:38:063
139291550,1ptp4l401ktimersoftd/320:08:563
1356995526,4cyclictest25-21ksoftirqd/121:15:001
1356995523,4cyclictest25-21ksoftirqd/121:02:551
1356995523,4cyclictest25-21ksoftirqd/120:15:221
1356995523,3cyclictest25-21ksoftirqd/122:05:201
1356995523,3cyclictest25-21ksoftirqd/121:43:141
1356995523,3cyclictest25-21ksoftirqd/121:43:131
1356995426,4cyclictest25-21ksoftirqd/120:30:171
135699540,7cyclictest25-21ksoftirqd/100:25:191
1355995423,3cyclictest9-21ksoftirqd/019:25:000
1355995422,3cyclictest9-21ksoftirqd/022:15:190
1355995420,4cyclictest9-21ksoftirqd/000:40:000
1356995325,3cyclictest25-21ksoftirqd/120:45:261
1356995325,3cyclictest25-21ksoftirqd/119:50:191
1356995323,3cyclictest25-21ksoftirqd/121:45:131
139291520,1ptp4l401ktimersoftd/320:20:283
1356995222,3cyclictest25-21ksoftirqd/121:55:141
1355995225,3cyclictest9-21ksoftirqd/021:50:230
1356995118,11cyclictest25-21ksoftirqd/119:55:261
135599508,4cyclictest9-21ksoftirqd/022:10:200
1355995022,4cyclictest9-21ksoftirqd/022:55:190
135699493,2cyclictest25-21ksoftirqd/120:55:211
135699493,2cyclictest25-21ksoftirqd/120:55:211
135699492,3cyclictest25-21ksoftirqd/120:50:161
1355994921,3cyclictest9-21ksoftirqd/023:10:260
135291490,1getstats0-21swapper/322:40:163
135291490,1getstats0-21swapper/322:40:163
1356994832,4cyclictest25-21ksoftirqd/122:55:281
135699482,3cyclictest25-21ksoftirqd/122:00:181
135699481,3cyclictest25-21ksoftirqd/119:25:121
1356994812,7cyclictest25-21ksoftirqd/123:40:271
1355994817,7cyclictest9-21ksoftirqd/022:30:280
1355994815,4cyclictest9-21ksoftirqd/022:25:200
135291480,2getstats0-21swapper/321:30:163
135699472,3cyclictest25-21ksoftirqd/122:45:131
135699472,3cyclictest25-21ksoftirqd/122:25:231
135699472,3cyclictest25-21ksoftirqd/122:10:251
135699471,3cyclictest25-21ksoftirqd/122:50:241
135699471,3cyclictest25-21ksoftirqd/122:40:191
135699471,3cyclictest25-21ksoftirqd/122:40:181
135699471,3cyclictest25-21ksoftirqd/122:35:271
135699471,3cyclictest25-21ksoftirqd/121:30:281
1355994719,3cyclictest9-21ksoftirqd/022:05:250
1355994718,5cyclictest9-21ksoftirqd/023:40:000
1357994616,29cyclictest23312-21kworker/2:019:38:452
135699462,3cyclictest25-21ksoftirqd/120:20:291
135699461,3cyclictest25-21ksoftirqd/123:00:251
1355994615,4cyclictest9-21ksoftirqd/022:20:240
1356994516,9cyclictest25-21ksoftirqd/100:10:141
135599454,3cyclictest23459-21ps19:55:200
1355994516,4cyclictest9-21ksoftirqd/022:45:000
1355994515,3cyclictest9-21ksoftirqd/023:50:150
1355994515,3cyclictest9-21ksoftirqd/021:05:140
135599451,3cyclictest121rcu_preempt21:25:150
135699444,3cyclictest25-21ksoftirqd/123:55:131
1356994429,4cyclictest25-21ksoftirqd/121:50:141
135699441,2cyclictest121rcu_preempt19:15:241
135699440,2cyclictest25-21ksoftirqd/119:20:201
135599443,4cyclictest9-21ksoftirqd/019:35:170
1355994429,4cyclictest9-21ksoftirqd/020:20:000
1355994424,3cyclictest9-21ksoftirqd/023:05:230
1355994414,4cyclictest9-21ksoftirqd/021:20:190
135599441,3cyclictest121rcu_preempt23:15:160
1355994413,4cyclictest9-21ksoftirqd/019:40:160
1355994413,3cyclictest9-21ksoftirqd/019:15:150
1355994412,7cyclictest9-21ksoftirqd/019:50:250
139291430,0ptp4l401ktimersoftd/323:25:193
139291430,0ptp4l401ktimersoftd/319:12:013
1356994334,2cyclictest25-21ksoftirqd/123:25:251
1356994329,3cyclictest25-21ksoftirqd/123:50:001
135699432,2cyclictest25-21ksoftirqd/123:35:001
135699430,6cyclictest25-21ksoftirqd/121:20:001
1355994315,3cyclictest9-21ksoftirqd/023:25:240
1355994313,3cyclictest9-21ksoftirqd/021:34:590
135599431,2cyclictest121rcu_preempt21:15:000
135599431,2cyclictest121rcu_preempt20:00:280
135599430,3cyclictest121rcu_preempt00:30:250
139291420,0ptp4l401ktimersoftd/323:10:213
139291420,0ptp4l401ktimersoftd/321:05:233
135699423,3cyclictest25-21ksoftirqd/123:40:001
1356994229,3cyclictest25-21ksoftirqd/119:40:011
135599427,4cyclictest9-21ksoftirqd/000:10:190
135599420,3cyclictest121rcu_preempt23:30:250
135699414,5cyclictest1308-21runrttasks21:26:101
135699414,3cyclictest121rcu_preempt00:30:251
135699413,6cyclictest25-21ksoftirqd/100:20:251
135699413,2cyclictest25-21ksoftirqd/120:25:421
135699412,2cyclictest25-21ksoftirqd/100:05:271
135699411,6cyclictest25-21ksoftirqd/123:10:151
135599417,10cyclictest9-21ksoftirqd/000:10:000
1355994137,2cyclictest17764-21latency_hist21:59:590
1355994131,3cyclictest9-21ksoftirqd/020:35:000
1355994126,3cyclictest9-21ksoftirqd/019:10:200
1355994125,4cyclictest9-21ksoftirqd/020:40:210
135599411,5cyclictest121rcu_preempt20:57:460
135599411,5cyclictest121rcu_preempt20:57:460
1355994111,3cyclictest9-21ksoftirqd/020:05:280
1355994110,4cyclictest9-21ksoftirqd/021:35:200
135699400,3cyclictest1308-21runrttasks21:20:371
135599409,3cyclictest9-21ksoftirqd/020:10:140
1355994026,4cyclictest9-21ksoftirqd/021:00:140
1355994026,4cyclictest9-21ksoftirqd/020:20:120
1355994025,5cyclictest9-21ksoftirqd/023:00:190
1355994025,4cyclictest9-21ksoftirqd/021:45:160
1355994019,4cyclictest9-21ksoftirqd/023:45:170
139291390,2ptp4l401ktimersoftd/300:16:403
135799390,2cyclictest16370-21kworker/2:122:25:252
1355993926,3cyclictest9-21ksoftirqd/020:26:060
1355993925,3cyclictest9-21ksoftirqd/000:26:480
1355993910,4cyclictest9-21ksoftirqd/019:30:280
135599390,3cyclictest11267-21ps00:00:210
1358993832,4cyclictest41-21ksoftirqd/321:43:563
1358993832,4cyclictest41-21ksoftirqd/321:43:553
135799383,33cyclictest15376-21latency_hist21:55:012
135799382,33cyclictest18913-21latency_hist23:10:002
135599382,3cyclictest121rcu_preempt20:35:250
1355993823,3cyclictest9-21ksoftirqd/022:00:120
135599382,2cyclictest121rcu_preempt23:55:240
1355993822,4cyclictest9-21ksoftirqd/022:45:000
1355993810,3cyclictest9-21ksoftirqd/019:25:270
135291380,5getstats23092-21df_abs22:10:153
135291380,1getstats0-21swapper/321:35:163
139291370,0ptp4l401ktimersoftd/300:25:313
1358993731,4cyclictest41-21ksoftirqd/321:19:363
1358993731,4cyclictest41-21ksoftirqd/320:15:583
1357993731,4cyclictest33-21ksoftirqd/223:48:062
1357993731,4cyclictest33-21ksoftirqd/222:16:282
1357993731,4cyclictest33-21ksoftirqd/220:27:152
1357993715,19cyclictest872-21dump-pmu-power21:25:012
1357993712,3cyclictest1489-21sed20:15:272
1355993732,3cyclictest9-21ksoftirqd/019:45:220
1355993731,3cyclictest9-21ksoftirqd/021:40:140
1355993731,3cyclictest9-21ksoftirqd/021:40:140
1355993731,3cyclictest9-21ksoftirqd/020:45:250
1355993724,4cyclictest9-21ksoftirqd/022:45:250
1355993724,3cyclictest9-21ksoftirqd/000:20:170
1355993723,4cyclictest9-21ksoftirqd/021:15:180
1358993631,3cyclictest41-21ksoftirqd/300:32:093
1358993630,4cyclictest41-21ksoftirqd/321:45:473
1358993630,4cyclictest41-21ksoftirqd/320:57:183
1358993630,4cyclictest41-21ksoftirqd/320:57:183
1358993630,4cyclictest41-21ksoftirqd/320:42:453
1358993629,5cyclictest41-21ksoftirqd/322:05:583
1357993631,3cyclictest33-21ksoftirqd/200:31:212
1357993630,4cyclictest33-21ksoftirqd/222:02:392
1357993630,4cyclictest33-21ksoftirqd/219:30:402
1357993630,4cyclictest33-21ksoftirqd/219:26:512
1357993612,3cyclictest6100-21run-parts22:40:252
1357993612,3cyclictest6100-21run-parts22:40:252
135599364,3cyclictest9-21ksoftirqd/020:50:130
135599364,10cyclictest9-21ksoftirqd/023:20:130
1358993530,3cyclictest41-21ksoftirqd/323:38:213
1358993530,3cyclictest41-21ksoftirqd/321:27:423
1358993530,3cyclictest41-21ksoftirqd/319:45:013
1358993529,4cyclictest41-21ksoftirqd/321:21:523
1358993529,4cyclictest41-21ksoftirqd/320:53:283
1358993529,4cyclictest41-21ksoftirqd/320:47:343
1358993529,4cyclictest41-21ksoftirqd/319:32:293
1358993529,4cyclictest41-21ksoftirqd/300:10:093
1358993529,3cyclictest41-21ksoftirqd/321:50:203
1357993530,3cyclictest33-21ksoftirqd/223:36:262
1357993530,3cyclictest33-21ksoftirqd/220:21:542
1357993529,4cyclictest33-21ksoftirqd/223:50:542
1357993529,4cyclictest33-21ksoftirqd/221:03:582
1357993529,4cyclictest33-21ksoftirqd/220:31:582
1357993513,20cyclictest21507-21/usr/sbin/munin23:15:272
1358993429,3cyclictest41-21ksoftirqd/322:22:263
1358993428,4cyclictest41-21ksoftirqd/321:57:403
1358993428,4cyclictest41-21ksoftirqd/319:54:123
1357993428,4cyclictest33-21ksoftirqd/223:55:282
1357993428,4cyclictest33-21ksoftirqd/223:03:252
1357993428,4cyclictest33-21ksoftirqd/222:45:532
1357993428,4cyclictest33-21ksoftirqd/221:41:272
1357993428,4cyclictest33-21ksoftirqd/221:41:272
1357993414,18cyclictest33-21ksoftirqd/219:21:372
135799341,32cyclictest23312-21kworker/2:019:12:242
1357993411,3cyclictest22731-21/usr/sbin/munin22:10:232
135599341,7cyclictest121rcu_preempt00:15:230
1358993328,3cyclictest41-21ksoftirqd/319:28:483
1358993327,4cyclictest41-21ksoftirqd/323:58:463
1358993327,4cyclictest41-21ksoftirqd/321:01:353
1358993327,4cyclictest41-21ksoftirqd/320:25:573
1358993327,4cyclictest41-21ksoftirqd/319:18:043
135899331,30cyclictest25598-21grep20:00:153
135799339,3cyclictest32320-21latency_hist20:15:012
1357993328,3cyclictest33-21ksoftirqd/223:43:202
1357993328,3cyclictest33-21ksoftirqd/222:21:212
1357993328,3cyclictest33-21ksoftirqd/221:05:062
1357993328,3cyclictest33-21ksoftirqd/200:06:562
1357993327,4cyclictest33-21ksoftirqd/223:34:302
1357993327,4cyclictest33-21ksoftirqd/223:13:402
1357993327,4cyclictest33-21ksoftirqd/222:38:292
1357993327,4cyclictest33-21ksoftirqd/200:03:342
1357993326,5cyclictest33-21ksoftirqd/220:53:282
1357993311,3cyclictest5295-21seq21:30:282
1357993311,3cyclictest26203-21sed20:00:202
1357993311,3cyclictest11336-21chrt20:36:152
1357993310,4cyclictest20095-21lockfile-create00:20:002
1357993310,3cyclictest11787-21latency_hist22:55:012
139291320,9ptp4l0-21swapper/319:47:593
139291320,8ptp4l0-21swapper/319:58:043
1358993228,3cyclictest41-21ksoftirqd/320:14:413
1358993227,3cyclictest41-21ksoftirqd/323:40:123
1358993227,3cyclictest41-21ksoftirqd/323:32:143
1358993227,3cyclictest41-21ksoftirqd/321:11:303
1358993227,3cyclictest41-21ksoftirqd/300:08:223
1358993226,3cyclictest41-21ksoftirqd/322:55:003
135799329,3cyclictest29648-21sed21:15:212
135799329,3cyclictest12686-21irqrtprio22:55:202
1357993227,3cyclictest33-21ksoftirqd/221:45:142
1357993211,3cyclictest15535-21/usr/sbin/munin00:10:252
1358993126,3cyclictest41-21ksoftirqd/323:01:043
135799319,4cyclictest23012-21cstates19:55:152
135799319,4cyclictest21389-21latency19:50:192
135799319,3cyclictest782-21sed22:30:202
1357993126,3cyclictest33-21ksoftirqd/222:09:332
1357993126,3cyclictest33-21ksoftirqd/220:56:142
1357993126,3cyclictest33-21ksoftirqd/220:56:142
1357993126,3cyclictest33-21ksoftirqd/219:19:152
1357993125,4cyclictest33-21ksoftirqd/220:41:202
135799312,28cyclictest25955-21kworker/2:221:36:572
135799311,29cyclictest16370-21kworker/2:121:57:452
135799310,1cyclictest0-21swapper/220:50:002
139291300,0ptp4l401ktimersoftd/322:03:013
1358993025,3cyclictest41-21ksoftirqd/300:24:153
1358993024,4cyclictest41-21ksoftirqd/323:50:353
1357993025,3cyclictest33-21ksoftirqd/223:30:002
1357993024,4cyclictest33-21ksoftirqd/223:21:222
1357993024,4cyclictest33-21ksoftirqd/219:46:442
1357993024,4cyclictest33-21ksoftirqd/219:41:462
135799301,28cyclictest25955-21kworker/2:221:26:132
1358992924,3cyclictest41-21ksoftirqd/323:15:333
1358992924,3cyclictest41-21ksoftirqd/322:16:163
1358992924,3cyclictest41-21ksoftirqd/319:23:153
1358992923,4cyclictest41-21ksoftirqd/323:25:013
1358992923,4cyclictest41-21ksoftirqd/322:27:193
139291280,0ptp4l401ktimersoftd/322:36:383
1358992823,3cyclictest41-21ksoftirqd/322:57:343
1357992822,4cyclictest33-21ksoftirqd/200:38:322
1358992722,3cyclictest41-21ksoftirqd/322:32:463
1358992722,3cyclictest41-21ksoftirqd/319:37:383
1357992722,3cyclictest33-21ksoftirqd/200:22:262
1358992620,3cyclictest41-21ksoftirqd/322:45:243
1357992621,3cyclictest33-21ksoftirqd/200:26:082
1357992620,4cyclictest33-21ksoftirqd/221:11:252
139291250,1ptp4l401ktimersoftd/320:30:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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