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2025-11-20 - 10:25
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Thu Nov 20, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1618423160,20sleep10-21swapper/119:05:171
136691227164,22phc2sys0-21swapper/319:07:153
178272226164,51sleep00-21swapper/019:08:110
178392205169,24sleep20-21swapper/219:08:212
1366918464,11phc2sys0-21swapper/319:10:003
1844499628,52cyclictest22275-21kworker/2:122:30:242
243982540,2sleep30-21swapper/323:15:173
136591520,0ptp4l401ktimersoftd/320:35:253
1844199506,6cyclictest32288-21dpkg00:39:590
1844199475,6cyclictest21428-21missed_timers22:00:230
1844199462,6cyclictest0-21swapper/023:25:010
1844199456,7cyclictest10641-21touch23:55:010
18441994510,4cyclictest9-21ksoftirqd/023:40:090
1844199450,10cyclictest28401-21if_err_enp4s020:00:260
51698430,11rtkit-daemon0-21swapper/323:55:163
1844199424,4cyclictest9-21ksoftirqd/023:05:130
1844199415,7cyclictest17982-21egrep21:55:120
136591410,1ptp4l401ktimersoftd/319:23:263
136591410,0ptp4l401ktimersoftd/322:40:283
136591400,0ptp4l401ktimersoftd/322:15:203
136591390,0ptp4l401ktimersoftd/321:05:213
1844499387,5cyclictest33-21ksoftirqd/200:04:592
18444993825,11cyclictest33-21ksoftirqd/219:59:462
18443993826,10cyclictest25-21ksoftirqd/122:19:251
1844199389,4cyclictest9-21ksoftirqd/000:10:220
1844499379,5cyclictest33-21ksoftirqd/221:05:262
1844499379,4cyclictest33-21ksoftirqd/222:05:242
1844499376,6cyclictest33-21ksoftirqd/200:30:232
1844499375,4cyclictest33-21ksoftirqd/223:34:592
1844499373,8cyclictest33-21ksoftirqd/221:30:162
1844499372,3cyclictest121rcu_preempt20:50:162
18444993710,4cyclictest33-21ksoftirqd/223:55:132
1844199371,4cyclictest9-21ksoftirqd/022:15:240
136591370,0ptp4l401ktimersoftd/323:03:213
1844499366,6cyclictest33-21ksoftirqd/220:00:162
1844499366,5cyclictest33-21ksoftirqd/221:50:162
1844499365,11cyclictest33-21ksoftirqd/200:20:192
1844499363,3cyclictest121rcu_preempt21:00:162
18444993631,3cyclictest33-21ksoftirqd/223:45:232
1844499362,6cyclictest33-21ksoftirqd/200:35:252
18444993625,9cyclictest33-21ksoftirqd/223:40:162
1844499357,3cyclictest121rcu_preempt22:50:162
1844499355,6cyclictest33-21ksoftirqd/223:15:002
1844499354,5cyclictest33-21ksoftirqd/221:25:002
1844499353,6cyclictest33-21ksoftirqd/223:05:122
1844499353,6cyclictest33-21ksoftirqd/220:20:172
1844499352,5cyclictest33-21ksoftirqd/223:00:142
18444993525,8cyclictest33-21ksoftirqd/223:15:142
1844499351,3cyclictest121rcu_preempt22:40:202
136591350,0ptp4l401ktimersoftd/320:08:403
247042340,12sleep11844399cyclictest23:15:191
1844499347,3cyclictest33-21ksoftirqd/222:50:002
1844499346,2cyclictest33-21ksoftirqd/220:05:142
1844499345,6cyclictest33-21ksoftirqd/222:00:002
1844499345,5cyclictest33-21ksoftirqd/221:15:002
1844499344,6cyclictest33-21ksoftirqd/222:35:142
1844499343,6cyclictest33-21ksoftirqd/223:20:152
1844499343,5cyclictest33-21ksoftirqd/221:40:192
1844499343,5cyclictest33-21ksoftirqd/200:10:192
18444993429,3cyclictest33-21ksoftirqd/200:09:592
1844499341,5cyclictest33-21ksoftirqd/219:40:012
1844199345,4cyclictest9-21ksoftirqd/022:35:180
18441993413,7cyclictest9-21ksoftirqd/022:34:240
18441993412,7cyclictest9-21ksoftirqd/023:15:000
18447993327,4cyclictest41-21ksoftirqd/323:39:163
18447993326,4cyclictest41-21ksoftirqd/319:46:443
1844499337,6cyclictest33-21ksoftirqd/221:35:142
1844499336,7cyclictest33-21ksoftirqd/219:50:002
1844499333,7cyclictest33-21ksoftirqd/220:30:232
18444993329,3cyclictest33-21ksoftirqd/219:20:012
18444993329,2cyclictest33-21ksoftirqd/220:49:592
18444993329,2cyclictest33-21ksoftirqd/220:49:592
18444993329,2cyclictest33-21ksoftirqd/219:40:002
18444993328,2cyclictest33-21ksoftirqd/200:15:152
1844499332,7cyclictest33-21ksoftirqd/223:35:172
1844499332,6cyclictest33-21ksoftirqd/220:35:142
18444993326,4cyclictest33-21ksoftirqd/222:15:202
18443993326,5cyclictest25-21ksoftirqd/119:37:271
18443993326,4cyclictest25-21ksoftirqd/121:50:591
18441993327,3cyclictest9-21ksoftirqd/022:26:580
1844199332,5cyclictest9-21ksoftirqd/022:40:270
1844199332,4cyclictest9-21ksoftirqd/020:18:150
18447993227,3cyclictest41-21ksoftirqd/300:13:383
18447993226,4cyclictest41-21ksoftirqd/320:12:043
1844499324,6cyclictest33-21ksoftirqd/221:45:152
1844499323,3cyclictest121rcu_preempt21:15:132
18444993228,2cyclictest33-21ksoftirqd/223:50:292
18444993228,2cyclictest33-21ksoftirqd/220:15:232
18444993227,3cyclictest33-21ksoftirqd/222:55:212
18444993227,3cyclictest33-21ksoftirqd/219:53:252
1844499322,6cyclictest33-21ksoftirqd/222:20:142
1844499321,6cyclictest33-21ksoftirqd/222:10:192
1844499321,6cyclictest33-21ksoftirqd/222:00:162
1844499321,5cyclictest33-21ksoftirqd/223:25:162
1844499321,5cyclictest33-21ksoftirqd/222:25:162
1844499320,2cyclictest121rcu_preempt00:25:122
18443993226,4cyclictest25-21ksoftirqd/123:54:271
18443993226,4cyclictest25-21ksoftirqd/122:56:411
18443993226,4cyclictest25-21ksoftirqd/122:30:341
18443993226,4cyclictest25-21ksoftirqd/100:34:581
1844199329,3cyclictest9-21ksoftirqd/020:55:150
18441993227,3cyclictest9-21ksoftirqd/020:49:560
18441993227,3cyclictest9-21ksoftirqd/020:49:550
18441993226,4cyclictest9-21ksoftirqd/023:53:530
18441993226,4cyclictest9-21ksoftirqd/022:07:260
18441993226,4cyclictest9-21ksoftirqd/020:50:360
18441993226,4cyclictest9-21ksoftirqd/020:28:130
136591320,0ptp4l401ktimersoftd/323:30:223
136591320,0ptp4l401ktimersoftd/321:52:103
136591320,0ptp4l401ktimersoftd/319:27:533
18447993126,3cyclictest7026-21cron20:25:003
18447993126,3cyclictest41-21ksoftirqd/320:45:333
18447993126,3cyclictest41-21ksoftirqd/320:45:333
18447993125,4cyclictest41-21ksoftirqd/323:29:173
18447993125,4cyclictest41-21ksoftirqd/322:57:193
18447993125,4cyclictest41-21ksoftirqd/322:39:593
18447993125,4cyclictest41-21ksoftirqd/320:42:533
1844499316,3cyclictest33-21ksoftirqd/219:26:272
1844499315,5cyclictest33-21ksoftirqd/220:55:112
18444993126,3cyclictest33-21ksoftirqd/221:25:172
18444993126,3cyclictest33-21ksoftirqd/220:10:172
18443993125,4cyclictest25-21ksoftirqd/119:41:251
18443993125,4cyclictest25-21ksoftirqd/119:14:571
18443993125,4cyclictest25-21ksoftirqd/100:18:531
18443993125,4cyclictest25-21ksoftirqd/100:12:401
1844199312,5cyclictest101ktimersoftd/000:21:210
18441993125,4cyclictest9-21ksoftirqd/022:12:240
18441993125,4cyclictest9-21ksoftirqd/021:17:200
18441993125,4cyclictest9-21ksoftirqd/000:06:280
136591310,0ptp4l401ktimersoftd/323:49:193
136591310,0ptp4l401ktimersoftd/322:54:153
136591310,0ptp4l401ktimersoftd/322:46:113
136591310,0ptp4l401ktimersoftd/321:45:223
136591310,0ptp4l401ktimersoftd/321:30:153
136591310,0ptp4l401ktimersoftd/320:16:183
136591310,0ptp4l401ktimersoftd/300:20:263
18447993025,3cyclictest41-21ksoftirqd/323:22:193
18447993024,4cyclictest41-21ksoftirqd/323:13:093
18447993024,4cyclictest41-21ksoftirqd/322:34:413
18447993024,4cyclictest41-21ksoftirqd/322:27:473
18447993024,4cyclictest41-21ksoftirqd/319:42:553
18444993026,2cyclictest33-21ksoftirqd/219:30:242
1844499301,2cyclictest121rcu_preempt20:40:242
18443993025,3cyclictest25-21ksoftirqd/123:12:591
18443993025,3cyclictest25-21ksoftirqd/100:06:571
18443993024,4cyclictest25-21ksoftirqd/121:57:041
18443993024,4cyclictest25-21ksoftirqd/121:05:491
18443993024,4cyclictest25-21ksoftirqd/120:10:131
1844399301,4cyclictest4998-21df_inode22:35:151
18441993024,4cyclictest9-21ksoftirqd/023:03:430
18441993024,4cyclictest9-21ksoftirqd/022:53:000
18441993024,4cyclictest9-21ksoftirqd/021:54:500
18441993024,4cyclictest9-21ksoftirqd/020:14:290
18441993024,4cyclictest9-21ksoftirqd/019:58:530
136591300,0ptp4l401ktimersoftd/323:42:283
136591300,0ptp4l401ktimersoftd/322:24:573
136591300,0ptp4l401ktimersoftd/322:10:103
136591300,0ptp4l401ktimersoftd/321:55:563
136591300,0ptp4l401ktimersoftd/321:44:463
136591300,0ptp4l401ktimersoftd/320:28:183
136591300,0ptp4l401ktimersoftd/300:02:573
18447992924,3cyclictest41-21ksoftirqd/322:09:183
18447992924,3cyclictest41-21ksoftirqd/321:19:473
18444992925,2cyclictest33-21ksoftirqd/220:25:162
18443992924,3cyclictest25-21ksoftirqd/123:35:541
18443992924,3cyclictest25-21ksoftirqd/123:20:411
18443992924,3cyclictest25-21ksoftirqd/122:02:211
18443992924,3cyclictest25-21ksoftirqd/120:45:061
18443992924,3cyclictest25-21ksoftirqd/120:45:061
18443992923,4cyclictest25-21ksoftirqd/121:31:211
18443992923,4cyclictest25-21ksoftirqd/121:13:111
18443992923,4cyclictest25-21ksoftirqd/121:02:311
18443992923,4cyclictest25-21ksoftirqd/120:58:031
18443992923,4cyclictest25-21ksoftirqd/120:51:531
18443992923,4cyclictest25-21ksoftirqd/120:38:131
18443992923,4cyclictest25-21ksoftirqd/100:37:231
18441992924,3cyclictest9-21ksoftirqd/019:44:550
18441992923,4cyclictest9-21ksoftirqd/023:49:230
18441992923,4cyclictest9-21ksoftirqd/023:10:320
18441992923,4cyclictest9-21ksoftirqd/021:21:240
18441992923,4cyclictest9-21ksoftirqd/019:33:450
18441992923,4cyclictest9-21ksoftirqd/000:30:480
18441992923,4cyclictest9-21ksoftirqd/000:16:430
136591290,0ptp4l401ktimersoftd/323:52:293
136591290,0ptp4l401ktimersoftd/319:32:553
136591290,0ptp4l401ktimersoftd/300:20:003
18447992823,3cyclictest41-21ksoftirqd/300:25:303
18447992823,3cyclictest41-21ksoftirqd/300:07:013
18447992822,4cyclictest41-21ksoftirqd/323:05:553
18444992824,2cyclictest33-21ksoftirqd/219:21:022
18443992823,3cyclictest25-21ksoftirqd/123:28:581
18443992823,3cyclictest25-21ksoftirqd/119:55:001
18443992823,3cyclictest25-21ksoftirqd/119:16:181
18443992822,4cyclictest25-21ksoftirqd/123:08:211
18443992822,4cyclictest25-21ksoftirqd/122:48:511
18443992822,4cyclictest25-21ksoftirqd/122:20:351
18443992822,4cyclictest25-21ksoftirqd/122:09:111
18443992822,4cyclictest25-21ksoftirqd/121:24:511
18443992822,4cyclictest25-21ksoftirqd/120:43:271
18443992822,4cyclictest25-21ksoftirqd/100:20:451
1844199285,5cyclictest9-21ksoftirqd/021:25:210
18441992823,3cyclictest9-21ksoftirqd/021:10:200
18441992823,3cyclictest9-21ksoftirqd/019:50:590
18441992822,4cyclictest9-21ksoftirqd/021:37:500
18441992822,4cyclictest9-21ksoftirqd/021:31:280
18441992822,4cyclictest9-21ksoftirqd/020:37:360
18441992822,4cyclictest9-21ksoftirqd/000:27:350
18441992812,5cyclictest9-21ksoftirqd/019:48:060
136591280,0ptp4l401ktimersoftd/321:39:303
136591280,0ptp4l401ktimersoftd/319:55:013
18447992722,3cyclictest41-21ksoftirqd/321:28:263
18447992722,3cyclictest41-21ksoftirqd/321:22:133
18447992722,3cyclictest41-21ksoftirqd/300:31:513
18447992721,4cyclictest41-21ksoftirqd/320:02:253
1844499270,3cyclictest121rcu_preempt19:15:002
18443992722,3cyclictest25-21ksoftirqd/123:30:121
18443992722,3cyclictest25-21ksoftirqd/121:28:191
18443992722,3cyclictest25-21ksoftirqd/120:29:171
18443992721,4cyclictest25-21ksoftirqd/122:51:391
18443992721,4cyclictest25-21ksoftirqd/120:15:351
18443992721,4cyclictest25-21ksoftirqd/120:05:041
18443992721,4cyclictest25-21ksoftirqd/119:27:081
18441992722,3cyclictest9-21ksoftirqd/000:01:030
18441992721,4cyclictest9-21ksoftirqd/023:36:230
18441992721,4cyclictest9-21ksoftirqd/021:07:330
18441992721,4cyclictest9-21ksoftirqd/020:43:260
136591270,10ptp4l0-21swapper/320:56:563
136591270,0ptp4l401ktimersoftd/320:52:093
18447992621,3cyclictest41-21ksoftirqd/319:37:333
18443992620,4cyclictest25-21ksoftirqd/121:46:331
18443992620,4cyclictest25-21ksoftirqd/120:01:591
18443992620,4cyclictest25-21ksoftirqd/119:34:511
18441992621,3cyclictest9-21ksoftirqd/020:22:560
18441992621,3cyclictest9-21ksoftirqd/019:39:320
18441992620,4cyclictest9-21ksoftirqd/023:27:210
18441992612,5cyclictest9-21ksoftirqd/022:47:300
136591260,1ptp4l401ktimersoftd/322:00:153
136591260,0ptp4l401ktimersoftd/321:13:523
136591260,0ptp4l401ktimersoftd/300:35:473
18447992520,3cyclictest41-21ksoftirqd/319:15:163
18447992519,4cyclictest41-21ksoftirqd/320:33:173
18443992520,3cyclictest25-21ksoftirqd/123:47:121
18443992520,3cyclictest25-21ksoftirqd/122:11:161
18443992520,3cyclictest25-21ksoftirqd/121:41:351
18443992520,3cyclictest25-21ksoftirqd/119:49:301
18443992520,3cyclictest25-21ksoftirqd/100:28:071
1844199254,6cyclictest9-21ksoftirqd/021:45:260
18441992519,4cyclictest9-21ksoftirqd/020:31:180
136591250,0ptp4l401ktimersoftd/321:00:113
18443992419,3cyclictest25-21ksoftirqd/121:37:151
18443992419,3cyclictest25-21ksoftirqd/121:19:271
18443992419,3cyclictest25-21ksoftirqd/120:30:021
18443992418,4cyclictest25-21ksoftirqd/123:56:031
18443992418,4cyclictest25-21ksoftirqd/119:58:331
18443992418,3cyclictest25-21ksoftirqd/100:01:341
18441992420,3cyclictest9-21ksoftirqd/019:19:550
18441992419,3cyclictest9-21ksoftirqd/020:06:510
18441992419,3cyclictest9-21ksoftirqd/019:22:140
18441992418,4cyclictest9-21ksoftirqd/023:31:540
18441992418,4cyclictest9-21ksoftirqd/019:27:110
1844199240,4cyclictest0-21swapper/022:25:010
136591240,0ptp4l401ktimersoftd/319:50:033
18443992318,3cyclictest25-21ksoftirqd/122:40:551
18443992317,4cyclictest25-21ksoftirqd/122:26:451
1844199232,5cyclictest9-21ksoftirqd/019:10:050
18441992318,3cyclictest9-21ksoftirqd/021:02:400
18443992217,3cyclictest25-21ksoftirqd/123:40:471
18443992116,3cyclictest25-21ksoftirqd/123:02:101
1844199212,5cyclictest9-21ksoftirqd/021:44:250
18441992116,3cyclictest9-21ksoftirqd/022:56:490
18443992016,3cyclictest25-21ksoftirqd/120:20:231
18443992015,3cyclictest25-21ksoftirqd/119:20:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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