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2026-06-22 - 04:41
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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 rackdslot3.osadl.org (updated Mon Jun 22, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491237169,23phc2sys0-21swapper/319:08:563
82532206141,21sleep10-21swapper/119:07:181
81362206172,22sleep00-21swapper/019:05:530
63292205172,22sleep20-21swapper/219:05:072
8751996511,19cyclictest13294-21latency_hist19:20:000
8754995810,46cyclictest17614-21kworker/3:023:09:133
8753995414,7cyclictest33-21ksoftirqd/221:20:002
8754995213,37cyclictest23135-21kworker/3:219:52:333
8754995213,37cyclictest23135-21kworker/3:219:52:333
8753995119,4cyclictest33-21ksoftirqd/220:00:012
173062500,3sleep117308-21timerandwakeup23:55:261
139391490,21ptp4l875499cyclictest22:25:133
875399488,10cyclictest33-21ksoftirqd/220:30:202
198212470,2sleep20-21swapper/222:55:132
198212470,2sleep20-21swapper/222:55:132
875399467,5cyclictest33-21ksoftirqd/221:40:282
8753994619,3cyclictest33-21ksoftirqd/219:40:222
8753994538,4cyclictest22834-21cron00:10:012
8753994515,6cyclictest33-21ksoftirqd/200:35:142
8753994515,4cyclictest33-21ksoftirqd/220:40:212
8753994513,6cyclictest33-21ksoftirqd/223:40:002
875399448,5cyclictest33-21ksoftirqd/200:05:012
139391440,0ptp4l401ktimersoftd/319:30:283
875399439,4cyclictest33-21ksoftirqd/222:25:132
8753994313,7cyclictest33-21ksoftirqd/200:24:592
875399429,6cyclictest33-21ksoftirqd/220:30:012
875399429,5cyclictest33-21ksoftirqd/223:30:142
875399427,6cyclictest33-21ksoftirqd/219:50:242
875399427,6cyclictest33-21ksoftirqd/219:50:242
875399426,7cyclictest33-21ksoftirqd/220:55:242
875399425,3cyclictest33-21ksoftirqd/223:15:242
875399425,3cyclictest33-21ksoftirqd/222:30:182
875399420,3cyclictest121rcu_preempt21:45:152
57898420,2rtkit-daemon0-21swapper/119:32:501
139391420,0ptp4l401ktimersoftd/321:11:573
139391420,0ptp4l401ktimersoftd/300:06:513
875399419,4cyclictest33-21ksoftirqd/220:15:002
875399417,6cyclictest33-21ksoftirqd/223:20:142
875399417,6cyclictest33-21ksoftirqd/222:20:182
875399415,7cyclictest33-21ksoftirqd/200:10:252
875399413,7cyclictest33-21ksoftirqd/221:30:012
8753994136,2cyclictest33-21ksoftirqd/223:05:012
8753994129,10cyclictest33-21ksoftirqd/220:05:252
8753994113,4cyclictest33-21ksoftirqd/200:15:142
8753994112,3cyclictest33-21ksoftirqd/219:10:202
8753994112,3cyclictest33-21ksoftirqd/219:10:192
139391410,0ptp4l401ktimersoftd/323:35:193
875399409,7cyclictest33-21ksoftirqd/221:35:012
875399408,7cyclictest33-21ksoftirqd/219:20:242
875399408,5cyclictest33-21ksoftirqd/222:00:152
875399408,5cyclictest33-21ksoftirqd/222:00:152
875399408,5cyclictest33-21ksoftirqd/219:25:222
875399407,7cyclictest33-21ksoftirqd/221:20:162
8753994014,6cyclictest33-21ksoftirqd/222:35:162
8753994011,4cyclictest33-21ksoftirqd/221:55:152
8753994011,3cyclictest33-21ksoftirqd/222:10:132
875399396,5cyclictest33-21ksoftirqd/200:25:242
8753993928,3cyclictest33-21ksoftirqd/220:05:002
8753993913,7cyclictest33-21ksoftirqd/223:45:272
8753993911,3cyclictest33-21ksoftirqd/220:50:252
57898390,6rtkit-daemon9-21ksoftirqd/022:30:130
8754993832,3cyclictest15799-21cron21:40:003
8754993831,5cyclictest41-21ksoftirqd/323:22:093
875399388,7cyclictest33-21ksoftirqd/223:10:252
875399385,6cyclictest33-21ksoftirqd/219:15:142
875399384,3cyclictest33-21ksoftirqd/223:05:272
8753993833,3cyclictest33-21ksoftirqd/221:50:212
8753993833,3cyclictest33-21ksoftirqd/220:35:252
8753993813,7cyclictest33-21ksoftirqd/222:15:182
8753993813,6cyclictest33-21ksoftirqd/222:40:132
8752993831,5cyclictest25-21ksoftirqd/121:16:241
8751993832,4cyclictest9-21ksoftirqd/022:16:550
875499379,17cyclictest1317-21runrttasks00:10:463
8754993731,4cyclictest41-21ksoftirqd/321:48:393
875399379,6cyclictest33-21ksoftirqd/221:00:222
875399379,6cyclictest33-21ksoftirqd/221:00:222
875399378,3cyclictest33-21ksoftirqd/221:35:142
875399377,8cyclictest33-21ksoftirqd/220:45:162
875399377,6cyclictest33-21ksoftirqd/223:25:152
875399376,6cyclictest33-21ksoftirqd/223:50:222
875399375,5cyclictest33-21ksoftirqd/200:30:172
875399375,5cyclictest33-21ksoftirqd/200:30:162
8753993732,3cyclictest33-21ksoftirqd/223:40:142
8753993732,3cyclictest33-21ksoftirqd/200:00:002
8753993731,4cyclictest33-21ksoftirqd/219:40:002
8753993724,11cyclictest33-21ksoftirqd/219:50:002
875399371,6cyclictest33-21ksoftirqd/222:05:222
8753993711,7cyclictest33-21ksoftirqd/221:10:192
8752993731,4cyclictest25-21ksoftirqd/119:28:281
8751993714,21cyclictest31203-21idleruntime-cro23:20:010
875199370,3cyclictest21618-21taskset22:59:040
875199370,3cyclictest21618-21taskset22:59:040
8754993630,4cyclictest41-21ksoftirqd/322:11:223
8754993629,5cyclictest41-21ksoftirqd/300:15:423
875399366,3cyclictest33-21ksoftirqd/221:05:242
8753993631,3cyclictest33-21ksoftirqd/222:50:142
8753993631,3cyclictest33-21ksoftirqd/220:20:182
8753993611,6cyclictest33-21ksoftirqd/219:30:232
8752993630,4cyclictest25-21ksoftirqd/100:25:351
8752993630,3cyclictest25-21ksoftirqd/120:50:161
8751993630,4cyclictest9-21ksoftirqd/021:36:120
8754993530,3cyclictest41-21ksoftirqd/319:25:413
8754993529,4cyclictest41-21ksoftirqd/322:24:463
8754993529,4cyclictest41-21ksoftirqd/300:27:463
8754993528,4cyclictest41-21ksoftirqd/319:10:583
8754993528,4cyclictest41-21ksoftirqd/319:10:583
875399355,7cyclictest33-21ksoftirqd/222:45:242
8753993511,6cyclictest33-21ksoftirqd/220:20:002
8752993530,3cyclictest25-21ksoftirqd/100:00:111
8752993529,4cyclictest25-21ksoftirqd/123:13:341
8752993529,4cyclictest25-21ksoftirqd/121:06:091
8752993529,4cyclictest25-21ksoftirqd/120:59:551
8752993529,4cyclictest25-21ksoftirqd/120:26:491
8752993529,4cyclictest25-21ksoftirqd/120:24:121
8752993529,4cyclictest25-21ksoftirqd/119:47:101
8752993529,4cyclictest25-21ksoftirqd/100:21:141
8752993528,5cyclictest25-21ksoftirqd/122:16:091
8751993530,3cyclictest9-21ksoftirqd/021:55:000
8751993529,4cyclictest9-21ksoftirqd/022:45:410
8751993529,4cyclictest9-21ksoftirqd/000:12:540
875199350,4cyclictest31094-21chrt21:02:510
875199350,4cyclictest31094-21chrt21:02:510
8754993429,3cyclictest41-21ksoftirqd/319:41:273
8754993429,3cyclictest41-21ksoftirqd/300:00:013
8754993428,4cyclictest41-21ksoftirqd/322:50:093
8754993428,4cyclictest41-21ksoftirqd/321:44:223
8754993428,4cyclictest41-21ksoftirqd/320:33:133
8754993428,4cyclictest41-21ksoftirqd/320:15:323
8754993428,4cyclictest41-21ksoftirqd/319:36:043
8754993413,20cyclictest10524-21kworker/3:100:37:523
8752993428,4cyclictest25-21ksoftirqd/123:49:401
8752993428,4cyclictest25-21ksoftirqd/123:42:011
8752993428,4cyclictest25-21ksoftirqd/122:01:131
8752993428,4cyclictest25-21ksoftirqd/122:01:131
8752993428,4cyclictest25-21ksoftirqd/120:46:221
8752993428,4cyclictest25-21ksoftirqd/119:24:041
8752993428,4cyclictest25-21ksoftirqd/100:15:481
8751993428,4cyclictest9-21ksoftirqd/023:01:170
8751993428,4cyclictest9-21ksoftirqd/021:59:190
8751993428,4cyclictest9-21ksoftirqd/021:16:020
8751993428,4cyclictest9-21ksoftirqd/000:34:290
8751993428,4cyclictest9-21ksoftirqd/000:34:280
8751993427,5cyclictest9-21ksoftirqd/019:58:040
875499339,21cyclictest24631-21expr20:50:133
8754993328,3cyclictest41-21ksoftirqd/322:34:283
8754993328,3cyclictest41-21ksoftirqd/319:58:233
8754993327,4cyclictest41-21ksoftirqd/321:33:313
8754993327,4cyclictest41-21ksoftirqd/320:12:073
8754993327,4cyclictest41-21ksoftirqd/320:05:053
8752993328,3cyclictest25-21ksoftirqd/123:20:121
8752993328,3cyclictest25-21ksoftirqd/121:20:131
8752993327,4cyclictest25-21ksoftirqd/122:31:261
8752993327,4cyclictest25-21ksoftirqd/120:44:311
8752993327,4cyclictest25-21ksoftirqd/100:12:101
875199338,23cyclictest8383-21cron23:40:000
8751993328,3cyclictest9-21ksoftirqd/023:21:550
8751993327,4cyclictest9-21ksoftirqd/023:11:160
8751993327,4cyclictest9-21ksoftirqd/022:11:550
8751993327,4cyclictest9-21ksoftirqd/021:41:380
8751993327,4cyclictest9-21ksoftirqd/020:33:340
8751993327,4cyclictest9-21ksoftirqd/000:22:450
8751993327,4cyclictest9-21ksoftirqd/000:09:210
139391330,11ptp4l875499cyclictest22:16:403
139391330,10ptp4l875499cyclictest22:07:153
8754993227,3cyclictest41-21ksoftirqd/323:12:443
8754993227,3cyclictest41-21ksoftirqd/320:43:573
8754993227,3cyclictest41-21ksoftirqd/320:25:003
8754993227,3cyclictest41-21ksoftirqd/300:04:163
8754993226,4cyclictest41-21ksoftirqd/323:50:033
8754993226,4cyclictest41-21ksoftirqd/320:26:393
8754993226,4cyclictest41-21ksoftirqd/320:00:353
8754993225,4cyclictest41-21ksoftirqd/321:15:133
8754993211,18cyclictest19805-21expr22:55:133
8754993211,18cyclictest19805-21expr22:55:133
875499320,4cyclictest1300-21snmpd21:24:253
8752993227,3cyclictest25-21ksoftirqd/123:09:411
8752993227,3cyclictest25-21ksoftirqd/121:59:311
8752993227,3cyclictest25-21ksoftirqd/121:00:421
8752993227,3cyclictest25-21ksoftirqd/121:00:421
8752993226,4cyclictest25-21ksoftirqd/123:27:221
8752993226,4cyclictest25-21ksoftirqd/122:27:071
8752993226,4cyclictest25-21ksoftirqd/121:31:401
8752993226,4cyclictest25-21ksoftirqd/119:11:111
8752993226,4cyclictest25-21ksoftirqd/119:11:111
8751993227,3cyclictest9-21ksoftirqd/020:48:160
8751993227,3cyclictest9-21ksoftirqd/019:28:260
8751993227,3cyclictest9-21ksoftirqd/019:10:470
8751993227,3cyclictest9-21ksoftirqd/019:10:460
8751993226,4cyclictest9-21ksoftirqd/023:50:110
8751993226,4cyclictest9-21ksoftirqd/023:09:320
8751993226,4cyclictest9-21ksoftirqd/020:17:450
8751993226,4cyclictest9-21ksoftirqd/020:12:080
8751993226,4cyclictest9-21ksoftirqd/019:31:360
8751993226,4cyclictest9-21ksoftirqd/019:22:450
8751993226,4cyclictest9-21ksoftirqd/000:00:010
8751993226,3cyclictest9-21ksoftirqd/021:08:440
8751993215,14cyclictest27192-21users00:15:260
8751993211,18cyclictest4890-21latency_hist20:10:000
8751993211,18cyclictest13007-21hwlatdetect22:40:170
875199320,4cyclictest17627-21sed20:35:120
875199320,3cyclictest2050-21if_enp1s021:10:160
875199320,3cyclictest12417-21awk23:45:250
875199320,3cyclictest11075-21apt21:30:000
139391320,13ptp4l875499cyclictest00:30:173
139391320,13ptp4l875499cyclictest00:30:173
139391320,12ptp4l875499cyclictest22:49:043
8754993126,3cyclictest41-21ksoftirqd/323:15:413
8754993126,3cyclictest41-21ksoftirqd/319:49:143
8754993125,4cyclictest41-21ksoftirqd/323:30:333
8754993125,4cyclictest41-21ksoftirqd/320:45:413
8754993111,17cyclictest13658-21cat19:20:153
8752993126,3cyclictest25-21ksoftirqd/122:54:411
8752993126,3cyclictest25-21ksoftirqd/121:38:111
8752993126,3cyclictest25-21ksoftirqd/120:15:381
8752993125,4cyclictest25-21ksoftirqd/122:47:381
8752993125,4cyclictest25-21ksoftirqd/122:24:231
875199318,20cyclictest26228-21sed19:45:190
8751993126,3cyclictest9-21ksoftirqd/022:00:110
8751993126,3cyclictest9-21ksoftirqd/022:00:110
8751993125,4cyclictest9-21ksoftirqd/023:32:300
8751993125,4cyclictest9-21ksoftirqd/021:23:130
8751993125,4cyclictest9-21ksoftirqd/020:51:510
8751993125,4cyclictest9-21ksoftirqd/020:41:200
875199310,3cyclictest32549-21cpu20:00:120
875199310,3cyclictest3217-21tr00:35:130
875199310,3cyclictest29115-21cut21:00:000
875199310,3cyclictest24525-21sshd19:40:240
875199310,3cyclictest19503-21cat21:45:200
875199310,3cyclictest12643-21sed20:25:170
875499309,20cyclictest23135-21kworker/3:220:56:333
875499307,20cyclictest207-21systemd-journal22:39:593
8754993025,3cyclictest41-21ksoftirqd/321:04:413
8754993025,3cyclictest41-21ksoftirqd/321:04:413
8754993024,4cyclictest41-21ksoftirqd/321:53:443
8754993011,16cyclictest13489-21cat19:20:013
8752993025,3cyclictest25-21ksoftirqd/123:53:501
8752993025,3cyclictest25-21ksoftirqd/121:10:361
8752993025,3cyclictest25-21ksoftirqd/120:14:581
8752993025,3cyclictest25-21ksoftirqd/100:40:001
8752993024,4cyclictest25-21ksoftirqd/123:32:481
8752993024,4cyclictest25-21ksoftirqd/122:10:391
8752993024,4cyclictest25-21ksoftirqd/121:48:211
875199309,19cyclictest16004-21expr23:55:130
875199308,19cyclictest207-21systemd-journal23:30:000
8751993024,4cyclictest9-21ksoftirqd/022:26:430
8751993024,4cyclictest9-21ksoftirqd/020:21:390
8754992925,2cyclictest41-21ksoftirqd/320:40:003
8754992925,2cyclictest139391ptp4l23:45:393
8754992924,3cyclictest41-21ksoftirqd/323:43:493
8754992923,4cyclictest41-21ksoftirqd/322:42:513
8754992923,4cyclictest41-21ksoftirqd/321:57:143
8754992910,16cyclictest8931-21/usr/sbin/munin21:25:243
8752992924,3cyclictest25-21ksoftirqd/100:07:331
8752992923,4cyclictest25-21ksoftirqd/120:30:381
8752992920,7cyclictest25-21ksoftirqd/122:44:401
875199297,20cyclictest29902-21sh19:55:000
875199297,20cyclictest29902-21sh19:55:000
8751992924,3cyclictest9-21ksoftirqd/021:32:230
8751992924,3cyclictest9-21ksoftirqd/000:26:000
8751992923,4cyclictest9-21ksoftirqd/022:37:500
8751992923,4cyclictest9-21ksoftirqd/019:38:470
875199292,22cyclictest1317-21runrttasks22:20:120
8751992910,16cyclictest19454-21cat22:55:000
875499286,3cyclictest30198-21cat00:25:003
875499280,3cyclictest0-21swapper/323:27:133
8752992823,3cyclictest25-21ksoftirqd/122:06:091
8752992823,3cyclictest25-21ksoftirqd/119:19:481
8752992822,4cyclictest25-21ksoftirqd/122:59:541
8752992822,4cyclictest25-21ksoftirqd/122:59:531
875199286,20cyclictest10037-21grep23:40:240
8754992722,3cyclictest41-21ksoftirqd/323:04:443
875499270,4cyclictest26063-21hddtemp_smartct22:00:173
875499270,4cyclictest26063-21hddtemp_smartct22:00:163
8752992722,3cyclictest25-21ksoftirqd/120:07:221
8752992722,3cyclictest25-21ksoftirqd/119:51:141
8752992722,3cyclictest25-21ksoftirqd/119:51:131
8752992721,4cyclictest25-21ksoftirqd/123:00:341
8752992720,4cyclictest25-21ksoftirqd/121:40:161
875299270,26cyclictest0-21swapper/123:15:241
875199271,4cyclictest29021-21seq22:05:210
875499261,5cyclictest2031-21Xorg21:05:583
8752992621,3cyclictest25-21ksoftirqd/119:40:321
8752992620,4cyclictest25-21ksoftirqd/121:29:191
8752992519,4cyclictest25-21ksoftirqd/122:39:441
8752992519,4cyclictest25-21ksoftirqd/120:37:161
8752992318,3cyclictest25-21ksoftirqd/121:53:391
8752992317,4cyclictest25-21ksoftirqd/120:00:581
8752992015,3cyclictest25-21ksoftirqd/119:56:311
8752992014,4cyclictest25-21ksoftirqd/100:33:571
8752992014,4cyclictest25-21ksoftirqd/100:33:571
875299197,3cyclictest57898rtkit-daemon19:35:131
8752991712,3cyclictest6499-21ls23:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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