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2026-09-09 - 00:06
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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 rackdslot3.osadl.org (updated Tue Sep 08, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19082231170,50sleep20-21swapper/207:08:272
139491209166,32phc2sys0-21swapper/307:05:023
18592204173,21sleep10-21swapper/107:07:501
17132202169,22sleep00-21swapper/007:05:560
222542600,2sleep30-21swapper/310:05:153
2340995813,22cyclictest18057-21/usr/sbin/munin11:05:173
105492540,2sleep20-21swapper/211:55:182
234099522,25cyclictest0-21swapper/309:58:573
234099510,2cyclictest68752sleep309:32:133
2339994818,9cyclictest33-21ksoftirqd/209:35:212
2339994617,4cyclictest33-21ksoftirqd/212:39:592
2339994612,5cyclictest33-21ksoftirqd/210:40:002
2339994611,6cyclictest33-21ksoftirqd/207:50:132
120292460,2sleep20-21swapper/207:30:012
234099456,22cyclictest14150-21taskset09:48:253
234099450,2cyclictest7912sleep310:26:373
2340994413,22cyclictest10990-21/usr/sbin/munin08:35:193
234099440,3cyclictest17570-21taskset08:46:133
2339994429,12cyclictest33-21ksoftirqd/207:30:002
2339994411,6cyclictest33-21ksoftirqd/210:20:232
2339994411,5cyclictest33-21ksoftirqd/208:05:232
2337994440,2cyclictest17039-21grep12:10:010
139391440,0ptp4l401ktimersoftd/310:50:303
234099431,3cyclictest0-21swapper/308:03:253
233999438,6cyclictest33-21ksoftirqd/208:50:232
233999437,10cyclictest33-21ksoftirqd/210:25:182
2339994337,3cyclictest33-21ksoftirqd/207:40:012
2339994329,5cyclictest33-21ksoftirqd/209:15:002
2339994328,13cyclictest33-21ksoftirqd/208:05:012
2337994338,3cyclictest24931-21sh11:20:010
2337994338,3cyclictest24931-21sh11:20:000
234099424,21cyclictest0-21swapper/312:17:093
233999428,6cyclictest33-21ksoftirqd/211:35:152
2339994235,4cyclictest16864-21cron09:55:012
2339994231,9cyclictest33-21ksoftirqd/210:00:122
2339994211,4cyclictest33-21ksoftirqd/207:45:002
2338994236,4cyclictest4533-21cron07:15:011
139391420,0ptp4l401ktimersoftd/311:48:303
139391420,0ptp4l401ktimersoftd/307:50:143
233999418,4cyclictest33-21ksoftirqd/211:49:592
2339994136,3cyclictest33-21ksoftirqd/212:05:012
233999405,6cyclictest33-21ksoftirqd/212:25:132
2339994035,3cyclictest33-21ksoftirqd/209:45:202
2339994028,9cyclictest33-21ksoftirqd/209:20:202
2339994028,10cyclictest33-21ksoftirqd/207:10:242
2339994026,12cyclictest33-21ksoftirqd/210:10:202
233999401,4cyclictest33-21ksoftirqd/210:30:262
2339994010,4cyclictest33-21ksoftirqd/211:40:272
2338994035,3cyclictest25-21ksoftirqd/111:00:011
2339993934,3cyclictest33-21ksoftirqd/210:00:012
2339993934,3cyclictest33-21ksoftirqd/209:00:152
2339993933,3cyclictest33-21ksoftirqd/208:25:282
2339993926,11cyclictest33-21ksoftirqd/212:10:132
2338993935,3cyclictest25-21ksoftirqd/111:59:591
233999388,3cyclictest33-21ksoftirqd/210:59:552
2339993826,9cyclictest33-21ksoftirqd/207:20:272
233999381,7cyclictest33-21ksoftirqd/210:50:272
233999381,4cyclictest33-21ksoftirqd/210:05:262
2338993833,3cyclictest25-21ksoftirqd/110:35:121
2340993731,4cyclictest41-21ksoftirqd/312:35:423
2340993731,4cyclictest41-21ksoftirqd/311:39:593
2340993730,4cyclictest41-21ksoftirqd/308:26:123
233999378,4cyclictest33-21ksoftirqd/211:29:252
233999377,4cyclictest33-21ksoftirqd/207:47:412
233999377,3cyclictest33-21ksoftirqd/212:20:172
233999376,5cyclictest33-21ksoftirqd/209:06:042
2339993733,3cyclictest33-21ksoftirqd/210:19:592
2339993733,2cyclictest33-21ksoftirqd/209:34:592
2339993732,3cyclictest33-21ksoftirqd/209:40:142
2339993731,3cyclictest33-21ksoftirqd/211:00:122
2339993731,3cyclictest33-21ksoftirqd/208:45:242
2338993732,3cyclictest25-21ksoftirqd/108:20:011
233899371,2cyclictest121rcu_preempt07:30:001
2337993730,4cyclictest9-21ksoftirqd/009:36:590
2340993631,3cyclictest41-21ksoftirqd/308:50:103
2340993630,4cyclictest41-21ksoftirqd/307:31:223
233999368,3cyclictest33-21ksoftirqd/211:32:502
233999366,4cyclictest33-21ksoftirqd/211:08:412
233999365,6cyclictest33-21ksoftirqd/210:40:152
233999365,6cyclictest33-21ksoftirqd/210:40:152
2339993632,2cyclictest33-21ksoftirqd/211:55:012
2339993631,3cyclictest33-21ksoftirqd/211:14:592
2339993631,3cyclictest33-21ksoftirqd/210:45:192
2339993631,3cyclictest33-21ksoftirqd/209:25:192
2339993630,3cyclictest33-21ksoftirqd/212:05:162
2339993630,3cyclictest33-21ksoftirqd/209:20:002
2339993630,3cyclictest33-21ksoftirqd/207:15:172
2339993629,4cyclictest33-21ksoftirqd/208:12:482
233999361,4cyclictest33-21ksoftirqd/208:55:222
233999360,4cyclictest33-21ksoftirqd/211:20:192
233899363,3cyclictest121rcu_preempt10:30:161
2338993631,3cyclictest25-21ksoftirqd/109:35:211
2338993630,4cyclictest25-21ksoftirqd/112:36:561
2338993630,4cyclictest25-21ksoftirqd/107:49:131
2338993630,4cyclictest25-21ksoftirqd/107:36:501
2338993629,4cyclictest25-21ksoftirqd/111:45:061
2338993621,3cyclictest25-21ksoftirqd/110:05:191
2338993618,5cyclictest25-21ksoftirqd/108:45:271
233899360,5cyclictest29505-21grep08:05:161
2337993630,4cyclictest9-21ksoftirqd/011:21:220
2337993630,4cyclictest9-21ksoftirqd/008:40:000
2337993630,4cyclictest9-21ksoftirqd/008:29:000
2337993630,3cyclictest9-21ksoftirqd/012:00:000
2340993530,3cyclictest41-21ksoftirqd/307:25:103
2340993529,4cyclictest41-21ksoftirqd/311:30:353
2340993529,4cyclictest41-21ksoftirqd/311:04:403
2340993529,4cyclictest41-21ksoftirqd/310:15:423
2340993529,3cyclictest41-21ksoftirqd/308:20:133
234099351,3cyclictest0-21swapper/310:36:133
2339993530,3cyclictest33-21ksoftirqd/211:15:192
2339993530,3cyclictest33-21ksoftirqd/211:15:182
2339993530,3cyclictest33-21ksoftirqd/208:15:122
2339993529,3cyclictest33-21ksoftirqd/208:30:142
2339993529,3cyclictest33-21ksoftirqd/207:59:292
2339993529,3cyclictest33-21ksoftirqd/207:59:292
2339993528,4cyclictest33-21ksoftirqd/212:20:002
2338993530,3cyclictest25-21ksoftirqd/111:20:181
2338993529,4cyclictest25-21ksoftirqd/108:00:001
2338993529,4cyclictest25-21ksoftirqd/108:00:001
2338993528,4cyclictest25-21ksoftirqd/112:15:131
2338993525,9cyclictest25-21ksoftirqd/107:40:191
2337993531,3cyclictest9-21ksoftirqd/009:15:000
2337993531,2cyclictest9-21ksoftirqd/008:55:160
2337993530,3cyclictest9-21ksoftirqd/012:05:010
2337993530,3cyclictest9-21ksoftirqd/009:34:590
2337993530,3cyclictest9-21ksoftirqd/007:55:000
2337993530,3cyclictest9-21ksoftirqd/007:30:000
2337993529,4cyclictest9-21ksoftirqd/011:43:280
2337993529,4cyclictest9-21ksoftirqd/010:13:220
2337993529,4cyclictest9-21ksoftirqd/007:42:300
2337993529,3cyclictest9-21ksoftirqd/012:30:110
2337993528,5cyclictest9-21ksoftirqd/007:58:270
2337993528,5cyclictest9-21ksoftirqd/007:58:270
2337993528,4cyclictest9-21ksoftirqd/009:51:440
234099345,17cyclictest1317-21runrttasks07:56:473
234099345,17cyclictest1317-21runrttasks07:56:473
2340993429,3cyclictest41-21ksoftirqd/307:45:133
2340993428,4cyclictest41-21ksoftirqd/312:32:123
2340993428,4cyclictest41-21ksoftirqd/311:26:093
2340993428,4cyclictest41-21ksoftirqd/311:24:533
2340993428,4cyclictest41-21ksoftirqd/310:41:163
2340993428,4cyclictest41-21ksoftirqd/310:41:163
2340993428,4cyclictest41-21ksoftirqd/310:22:003
2340993428,4cyclictest41-21ksoftirqd/310:01:573
2340993428,4cyclictest41-21ksoftirqd/307:36:563
2340993428,4cyclictest41-21ksoftirqd/307:15:413
234099340,4cyclictest3361-21taskset10:33:083
234099340,4cyclictest1300-21snmpd09:37:373
2339993430,2cyclictest33-21ksoftirqd/208:42:262
2339993430,2cyclictest33-21ksoftirqd/208:42:262
2339993429,3cyclictest33-21ksoftirqd/208:20:222
2339993428,3cyclictest33-21ksoftirqd/208:35:272
2338993430,2cyclictest25-21ksoftirqd/112:15:001
2338993430,2cyclictest25-21ksoftirqd/109:25:191
2338993429,3cyclictest25-21ksoftirqd/111:25:121
2338993428,4cyclictest25-21ksoftirqd/110:29:241
2338993428,4cyclictest25-21ksoftirqd/109:52:201
2338993428,4cyclictest25-21ksoftirqd/109:45:101
2338993428,4cyclictest25-21ksoftirqd/109:22:161
2338993428,4cyclictest25-21ksoftirqd/109:13:531
2338993428,4cyclictest25-21ksoftirqd/109:02:511
2338993427,5cyclictest25-21ksoftirqd/110:45:401
2337993430,2cyclictest9-21ksoftirqd/012:20:000
2337993427,4cyclictest9-21ksoftirqd/009:23:200
2337993420,5cyclictest9-21ksoftirqd/008:18:010
2337993420,5cyclictest9-21ksoftirqd/007:15:020
2340993328,3cyclictest41-21ksoftirqd/308:06:453
2340993327,4cyclictest41-21ksoftirqd/311:54:463
2340993327,4cyclictest41-21ksoftirqd/310:13:493
2340993327,4cyclictest41-21ksoftirqd/309:16:413
2340993327,4cyclictest41-21ksoftirqd/309:13:003
2340993327,4cyclictest41-21ksoftirqd/309:08:133
2339993329,3cyclictest33-21ksoftirqd/212:30:132
2338993329,3cyclictest25-21ksoftirqd/111:15:191
2338993329,3cyclictest25-21ksoftirqd/111:15:181
2338993328,3cyclictest25-21ksoftirqd/112:20:221
2338993328,3cyclictest25-21ksoftirqd/110:15:001
2338993328,2cyclictest25-21ksoftirqd/111:44:591
2338993327,4cyclictest25-21ksoftirqd/111:09:111
2338993327,4cyclictest25-21ksoftirqd/109:05:591
2338993327,4cyclictest25-21ksoftirqd/108:40:321
2338993327,4cyclictest25-21ksoftirqd/108:40:321
2338993327,4cyclictest25-21ksoftirqd/108:21:351
2338993327,4cyclictest25-21ksoftirqd/107:32:081
2338993327,3cyclictest25-21ksoftirqd/112:08:581
2338993327,3cyclictest25-21ksoftirqd/109:30:201
2338993327,3cyclictest25-21ksoftirqd/108:35:201
2337993329,3cyclictest9-21ksoftirqd/010:00:130
2337993329,3cyclictest9-21ksoftirqd/009:05:000
2337993328,3cyclictest9-21ksoftirqd/009:16:260
2337993327,4cyclictest9-21ksoftirqd/008:10:370
2337993327,4cyclictest9-21ksoftirqd/008:06:450
2337993327,3cyclictest9-21ksoftirqd/007:39:290
2340993227,3cyclictest41-21ksoftirqd/312:02:323
2340993227,3cyclictest41-21ksoftirqd/311:58:513
2340993226,4cyclictest41-21ksoftirqd/309:23:473
2340993226,4cyclictest41-21ksoftirqd/308:16:073
2340993218,12cyclictest41-21ksoftirqd/312:08:463
2338993228,3cyclictest25-21ksoftirqd/108:25:191
2338993227,3cyclictest25-21ksoftirqd/110:05:001
2338993227,3cyclictest25-21ksoftirqd/109:00:001
2338993227,3cyclictest25-21ksoftirqd/108:15:011
2338993227,3cyclictest25-21ksoftirqd/108:00:191
2338993226,4cyclictest25-21ksoftirqd/111:53:151
2338993226,4cyclictest25-21ksoftirqd/107:52:291
2337993228,2cyclictest9-21ksoftirqd/011:10:170
2337993228,2cyclictest9-21ksoftirqd/010:45:000
2337993228,2cyclictest9-21ksoftirqd/010:45:000
2337993227,3cyclictest9-21ksoftirqd/012:30:000
2337993227,3cyclictest9-21ksoftirqd/010:05:490
2337993227,3cyclictest9-21ksoftirqd/009:27:080
2337993227,3cyclictest9-21ksoftirqd/008:54:060
2337993227,3cyclictest9-21ksoftirqd/008:45:180
2337993226,4cyclictest9-21ksoftirqd/008:41:190
2337993226,4cyclictest9-21ksoftirqd/008:41:190
2337993226,4cyclictest9-21ksoftirqd/008:04:290
2337993226,4cyclictest9-21ksoftirqd/007:23:530
2337993226,3cyclictest9-21ksoftirqd/011:30:130
2337993225,4cyclictest9-21ksoftirqd/012:20:020
2337993225,4cyclictest9-21ksoftirqd/011:09:290
2340993127,2cyclictest41-21ksoftirqd/310:49:063
2340993125,4cyclictest41-21ksoftirqd/309:41:003
2340993125,4cyclictest41-21ksoftirqd/309:01:073
2340993125,4cyclictest41-21ksoftirqd/308:56:473
2340993125,4cyclictest41-21ksoftirqd/308:43:433
2340993125,4cyclictest41-21ksoftirqd/308:43:433
2340993125,4cyclictest41-21ksoftirqd/307:24:403
2340993113,16cyclictest2757-21df_abs07:10:143
2340993110,18cyclictest551-21rs:main3
234099310,3cyclictest4738-21idleruntime-cro09:30:013
234099310,3cyclictest24446-21grep12:25:133
2338993128,2cyclictest25-21ksoftirqd/108:55:011
2338993126,3cyclictest25-21ksoftirqd/110:24:581
2338993126,3cyclictest25-21ksoftirqd/109:55:251
2338993126,3cyclictest25-21ksoftirqd/109:42:371
2338993126,3cyclictest25-21ksoftirqd/107:20:001
2338993125,4cyclictest25-21ksoftirqd/109:15:141
2338993125,4cyclictest25-21ksoftirqd/107:20:331
2337993126,3cyclictest9-21ksoftirqd/011:54:590
2337993126,3cyclictest9-21ksoftirqd/011:45:040
2337993125,4cyclictest9-21ksoftirqd/011:37:230
2337993125,4cyclictest9-21ksoftirqd/010:47:400
2337993125,4cyclictest9-21ksoftirqd/009:07:350
2337993124,4cyclictest9-21ksoftirqd/010:17:020
2337993124,4cyclictest9-21ksoftirqd/007:15:010
2340993025,3cyclictest41-21ksoftirqd/311:19:053
2340993025,3cyclictest41-21ksoftirqd/311:19:043
2340993024,4cyclictest41-21ksoftirqd/311:42:113
2340993012,15cyclictest22008-21sshd12:20:093
234099300,3cyclictest17440-21hddtemp_smartct07:40:173
234099300,27cyclictest1087-21idleruntime-cro08:15:013
2338993025,3cyclictest25-21ksoftirqd/112:29:481
2338993024,3cyclictest25-21ksoftirqd/112:05:001
2337993025,3cyclictest9-21ksoftirqd/012:10:560
2337993025,3cyclictest9-21ksoftirqd/010:25:170
2337993025,3cyclictest9-21ksoftirqd/007:30:060
2337993024,4cyclictest9-21ksoftirqd/011:04:120
2337993024,4cyclictest9-21ksoftirqd/009:57:260
2337993024,4cyclictest9-21ksoftirqd/008:21:340
2337993024,3cyclictest9-21ksoftirqd/010:37:550
2337993024,3cyclictest9-21ksoftirqd/009:42:440
2337993023,5cyclictest9-21ksoftirqd/010:58:300
139391300,0ptp4l401ktimersoftd/308:30:103
234099297,19cyclictest13475-21cpuspeed_turbos10:55:143
2340992924,3cyclictest41-21ksoftirqd/312:10:093
2338992924,3cyclictest25-21ksoftirqd/111:14:131
2338992924,3cyclictest25-21ksoftirqd/110:52:461
2337992924,3cyclictest9-21ksoftirqd/010:52:200
2337992924,3cyclictest9-21ksoftirqd/009:46:180
2337992924,3cyclictest9-21ksoftirqd/007:46:070
2340992822,4cyclictest41-21ksoftirqd/309:53:143
2338992823,3cyclictest25-21ksoftirqd/111:02:041
2338992822,4cyclictest25-21ksoftirqd/112:34:041
2338992822,4cyclictest25-21ksoftirqd/111:39:071
2337992823,3cyclictest9-21ksoftirqd/012:35:250
2337992823,3cyclictest9-21ksoftirqd/008:35:000
2337992822,4cyclictest9-21ksoftirqd/011:25:110
2338992722,3cyclictest25-21ksoftirqd/111:32:121
2337992722,3cyclictest9-21ksoftirqd/010:30:210
2338992621,3cyclictest25-21ksoftirqd/110:43:381
2338992621,3cyclictest25-21ksoftirqd/110:43:381
2338992619,4cyclictest25-21ksoftirqd/108:30:001
2337992621,3cyclictest9-21ksoftirqd/010:22:100
2338992521,3cyclictest25-21ksoftirqd/110:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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