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2026-03-11 - 19:11
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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 rackdslot4.osadl.org (updated Wed Mar 11, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591220157,51phc2sys0-21swapper/307:08:563
180542206172,23sleep10-21swapper/107:06:401
180832202169,22sleep00-21swapper/007:07:030
181652200167,22sleep20-21swapper/207:08:012
1074921650,5sleep31861399cyclictest08:00:003
2492321400,6sleep21861299cyclictest09:30:252
138491670,1ptp4l401ktimersoftd/308:55:253
14422630,5sleep341-21ksoftirqd/310:55:153
130262590,7sleep01861099cyclictest10:15:010
272002580,3sleep227204-21ptp4l10:40:222
18613995821,9cyclictest41-21ksoftirqd/307:15:123
84442540,3sleep38446-21cpuspeed_turbos10:05:123
18610995421,3cyclictest9-21ksoftirqd/009:25:010
138491540,1ptp4l401ktimersoftd/308:51:403
18611995322,4cyclictest25-21ksoftirqd/108:00:121
18610995324,3cyclictest9-21ksoftirqd/007:15:010
18610995324,3cyclictest9-21ksoftirqd/007:15:010
70282520,2sleep10-21swapper/107:50:201
70282520,2sleep10-21swapper/107:50:191
18611995218,4cyclictest25-21ksoftirqd/110:25:261
18610995219,3cyclictest9-21ksoftirqd/009:40:250
1861099516,4cyclictest9-21ksoftirqd/009:50:000
18610995122,4cyclictest9-21ksoftirqd/007:35:130
18610995121,4cyclictest9-21ksoftirqd/012:15:000
18610994919,3cyclictest9-21ksoftirqd/011:30:130
18611994815,11cyclictest25-21ksoftirqd/107:10:181
18611994815,11cyclictest25-21ksoftirqd/107:10:181
18611994815,10cyclictest25-21ksoftirqd/107:30:181
18610994816,4cyclictest9-21ksoftirqd/010:15:230
18610994717,4cyclictest9-21ksoftirqd/012:05:120
18610994715,4cyclictest9-21ksoftirqd/008:50:000
18610994712,3cyclictest9-21ksoftirqd/011:50:150
151572470,1sleep315156-21unixbench_multi08:05:273
1861199468,9cyclictest25-21ksoftirqd/109:20:151
18611994630,3cyclictest25-21ksoftirqd/111:40:001
18610994618,3cyclictest9-21ksoftirqd/012:30:100
18611994530,11cyclictest10606-21apt09:05:001
18611994510,7cyclictest25-21ksoftirqd/107:40:001
18610994516,3cyclictest9-21ksoftirqd/009:55:140
18610994515,4cyclictest9-21ksoftirqd/009:15:250
18610994514,4cyclictest9-21ksoftirqd/009:05:000
18610994414,3cyclictest9-21ksoftirqd/010:35:130
18610994413,3cyclictest9-21ksoftirqd/010:00:140
138491440,35ptp4l0-21swapper/307:10:003
138491440,35ptp4l0-21swapper/307:10:003
18611994330,3cyclictest25-21ksoftirqd/108:05:151
18611994310,10cyclictest25-21ksoftirqd/111:20:131
18610994314,4cyclictest9-21ksoftirqd/012:35:130
138491430,0ptp4l401ktimersoftd/312:13:503
18613994237,3cyclictest41-21ksoftirqd/308:40:003
18613994236,3cyclictest41-21ksoftirqd/309:20:003
18611994237,3cyclictest25-21ksoftirqd/110:24:591
18611994237,3cyclictest25-21ksoftirqd/108:15:001
1861199421,3cyclictest121rcu_preempt09:55:121
1861199420,2cyclictest25-21ksoftirqd/112:40:011
18610994236,3cyclictest9-21ksoftirqd/007:25:010
18610994228,4cyclictest9-21ksoftirqd/011:59:590
18610994213,4cyclictest9-21ksoftirqd/007:50:140
18610994213,4cyclictest9-21ksoftirqd/007:50:130
138491420,0ptp4l401ktimersoftd/309:30:483
138491420,0ptp4l401ktimersoftd/307:51:033
138491420,0ptp4l401ktimersoftd/307:51:023
1861399411,3cyclictest121rcu_preempt10:20:163
18611994135,3cyclictest25-21ksoftirqd/108:00:001
18611994134,4cyclictest25-21ksoftirqd/112:35:001
1861199412,2cyclictest121rcu_preempt10:35:171
18610994114,3cyclictest9-21ksoftirqd/011:40:130
1861099411,3cyclictest15735-21sshd11:23:410
18610994113,3cyclictest9-21ksoftirqd/008:35:140
138491410,0ptp4l401ktimersoftd/312:20:243
138491410,0ptp4l401ktimersoftd/312:20:243
18611994035,3cyclictest25-21ksoftirqd/112:15:221
18611994035,3cyclictest25-21ksoftirqd/107:29:591
1861199402,7cyclictest25-21ksoftirqd/110:05:241
1861199402,7cyclictest121rcu_preempt09:05:211
1861199400,3cyclictest25-21ksoftirqd/109:10:221
1861099405,3cyclictest9-21ksoftirqd/007:25:200
18610994026,4cyclictest9-21ksoftirqd/009:05:200
18610994012,3cyclictest9-21ksoftirqd/011:05:170
138491400,0ptp4l401ktimersoftd/309:59:483
1861199399,10cyclictest25-21ksoftirqd/109:40:151
1861199398,6cyclictest25-21ksoftirqd/109:45:151
1861199394,7cyclictest25-21ksoftirqd/110:30:151
1861199394,3cyclictest121rcu_preempt09:30:121
18611993934,3cyclictest25-21ksoftirqd/110:45:001
18611993934,3cyclictest25-21ksoftirqd/109:20:001
18611993933,3cyclictest25-21ksoftirqd/107:50:001
18611993924,7cyclictest25-21ksoftirqd/111:50:001
18611993923,5cyclictest25-21ksoftirqd/111:05:161
1861099398,4cyclictest9-21ksoftirqd/010:45:130
1861099392,3cyclictest5606-1kworker/dying12:20:130
1861099392,3cyclictest5606-1kworker/dying12:20:130
18610993911,3cyclictest9-21ksoftirqd/008:00:260
18610993910,4cyclictest9-21ksoftirqd/007:40:190
18613993831,4cyclictest41-21ksoftirqd/311:59:153
1861199386,6cyclictest25-21ksoftirqd/111:55:241
18611993832,3cyclictest25-21ksoftirqd/111:00:241
18611993832,3cyclictest25-21ksoftirqd/110:19:591
18611993832,3cyclictest25-21ksoftirqd/108:20:011
1861199382,3cyclictest121rcu_preempt08:50:201
1861199382,2cyclictest5856-21cron12:10:001
1861199380,3cyclictest121rcu_preempt11:50:221
1861199380,3cyclictest121rcu_preempt08:25:171
1861099389,3cyclictest9-21ksoftirqd/009:30:160
18610993834,2cyclictest9-21ksoftirqd/010:29:590
18610993834,2cyclictest9-21ksoftirqd/007:49:590
18610993833,2cyclictest9-21ksoftirqd/008:15:130
18610993825,3cyclictest9-21ksoftirqd/011:45:170
18610993825,3cyclictest9-21ksoftirqd/011:25:130
18610993825,3cyclictest9-21ksoftirqd/010:30:140
18610993813,3cyclictest9-21ksoftirqd/012:25:240
18613993733,2cyclictest41-21ksoftirqd/310:50:003
18613993733,2cyclictest41-21ksoftirqd/309:40:013
18613993732,3cyclictest41-21ksoftirqd/311:53:483
18613993724,4cyclictest41-21ksoftirqd/309:15:013
18612993732,3cyclictest33-21ksoftirqd/208:02:452
1861199376,5cyclictest25-21ksoftirqd/110:47:171
18611993732,3cyclictest25-21ksoftirqd/112:02:301
18611993732,3cyclictest25-21ksoftirqd/110:55:131
18611993732,2cyclictest25-21ksoftirqd/108:40:001
18611993731,3cyclictest25-21ksoftirqd/112:30:001
18611993731,3cyclictest25-21ksoftirqd/109:30:001
18611993731,3cyclictest25-21ksoftirqd/109:30:001
18611993730,4cyclictest25-21ksoftirqd/112:10:181
18611993730,3cyclictest25-21ksoftirqd/109:50:131
1861199371,4cyclictest25-21ksoftirqd/108:56:111
1861199371,3cyclictest121rcu_preempt11:30:131
1861199371,3cyclictest121rcu_preempt08:40:231
1861199370,3cyclictest121rcu_preempt11:10:261
1861199370,3cyclictest121rcu_preempt07:20:221
1861099375,3cyclictest9-21ksoftirqd/007:55:250
1861099373,3cyclictest121rcu_preempt10:54:170
18610993730,4cyclictest9-21ksoftirqd/010:45:000
18610993725,3cyclictest9-21ksoftirqd/008:25:150
18610993724,3cyclictest9-21ksoftirqd/008:20:140
1646623730,3sleep233-21ksoftirqd/210:20:172
138491370,0ptp4l401ktimersoftd/308:15:013
18613993632,2cyclictest41-21ksoftirqd/310:45:003
18613993631,3cyclictest41-21ksoftirqd/308:30:003
18613993630,4cyclictest41-21ksoftirqd/309:50:173
18613993630,4cyclictest41-21ksoftirqd/309:48:373
18613993630,4cyclictest41-21ksoftirqd/309:09:413
18613993630,3cyclictest41-21ksoftirqd/312:05:003
1861399360,2cyclictest121rcu_preempt07:36:403
18612993631,3cyclictest33-21ksoftirqd/211:26:312
18612993630,4cyclictest33-21ksoftirqd/212:38:442
1861199363,7cyclictest25-21ksoftirqd/108:34:191
18611993631,3cyclictest25-21ksoftirqd/112:20:151
18611993631,3cyclictest25-21ksoftirqd/112:20:151
18611993631,3cyclictest25-21ksoftirqd/110:55:001
18611993631,3cyclictest25-21ksoftirqd/107:40:211
18611993631,3cyclictest25-21ksoftirqd/107:20:001
18611993630,3cyclictest25-21ksoftirqd/111:25:251
1861199361,3cyclictest121rcu_preempt10:10:151
1861199361,2cyclictest121rcu_preempt10:00:201
18610993631,3cyclictest9-21ksoftirqd/009:55:000
18610993631,3cyclictest9-21ksoftirqd/007:15:130
18610993629,4cyclictest9-21ksoftirqd/012:18:440
18610993629,4cyclictest9-21ksoftirqd/008:51:080
18610993623,4cyclictest9-21ksoftirqd/008:40:240
1861099361,5cyclictest0-21swapper/011:15:250
138491360,0ptp4l401ktimersoftd/311:47:393
138491360,0ptp4l401ktimersoftd/311:37:383
18613993531,3cyclictest41-21ksoftirqd/312:35:183
18613993529,3cyclictest41-21ksoftirqd/312:05:173
18613993511,10cyclictest41-21ksoftirqd/309:00:163
18612993530,3cyclictest33-21ksoftirqd/208:20:102
18612993529,4cyclictest33-21ksoftirqd/212:28:572
18612993529,4cyclictest33-21ksoftirqd/208:50:102
18612993529,3cyclictest33-21ksoftirqd/210:10:022
18612993528,5cyclictest33-21ksoftirqd/212:18:062
1861199354,3cyclictest121rcu_preempt09:38:331
18611993529,3cyclictest25-21ksoftirqd/111:40:261
18611993529,3cyclictest25-21ksoftirqd/108:20:131
18610993530,3cyclictest9-21ksoftirqd/009:10:200
1861099352,4cyclictest0-21swapper/008:10:260
18610993523,3cyclictest9-21ksoftirqd/007:30:250
18610993521,4cyclictest9-21ksoftirqd/008:05:550
18610993520,4cyclictest9-21ksoftirqd/011:35:230
18613993430,3cyclictest41-21ksoftirqd/308:15:013
18613993430,2cyclictest41-21ksoftirqd/311:20:003
18613993429,3cyclictest41-21ksoftirqd/311:05:003
18613993429,3cyclictest41-21ksoftirqd/307:35:003
18613993428,4cyclictest41-21ksoftirqd/311:33:383
18613993428,3cyclictest41-21ksoftirqd/309:45:013
18613993427,4cyclictest41-21ksoftirqd/307:42:563
18612993429,3cyclictest33-21ksoftirqd/212:34:182
18612993429,3cyclictest33-21ksoftirqd/211:33:092
18612993429,3cyclictest33-21ksoftirqd/208:07:592
18612993429,3cyclictest33-21ksoftirqd/207:50:512
18612993429,3cyclictest33-21ksoftirqd/207:50:512
18612993428,4cyclictest33-21ksoftirqd/211:50:422
18612993428,4cyclictest33-21ksoftirqd/211:22:272
18612993428,4cyclictest33-21ksoftirqd/209:17:192
18612993428,4cyclictest33-21ksoftirqd/208:19:042
18612993428,3cyclictest33-21ksoftirqd/207:26:302
18612993427,5cyclictest33-21ksoftirqd/209:02:172
18612993427,4cyclictest33-21ksoftirqd/211:14:282
18612993427,4cyclictest33-21ksoftirqd/210:25:052
18611993430,2cyclictest25-21ksoftirqd/108:45:171
18610993431,2cyclictest9-21ksoftirqd/009:30:010
18610993431,2cyclictest9-21ksoftirqd/009:30:010
18610993428,3cyclictest9-21ksoftirqd/010:05:160
18610993421,4cyclictest9-21ksoftirqd/012:00:460
18610993421,4cyclictest9-21ksoftirqd/008:56:320
18610993421,3cyclictest9-21ksoftirqd/011:10:140
18610993421,3cyclictest9-21ksoftirqd/010:24:180
18610993420,3cyclictest9-21ksoftirqd/009:35:150
1861099341,2cyclictest26669-21iostat_ios08:30:180
1861099340,4cyclictest9-21ksoftirqd/010:55:190
18613993329,3cyclictest41-21ksoftirqd/311:08:383
18613993329,3cyclictest41-21ksoftirqd/309:20:233
18613993328,3cyclictest41-21ksoftirqd/312:30:243
18613993328,3cyclictest41-21ksoftirqd/311:20:243
18613993328,3cyclictest41-21ksoftirqd/308:02:333
18613993327,4cyclictest41-21ksoftirqd/308:32:213
18613993327,3cyclictest41-21ksoftirqd/311:26:253
18612993328,3cyclictest33-21ksoftirqd/208:57:522
18612993328,3cyclictest33-21ksoftirqd/208:32:582
18612993328,3cyclictest33-21ksoftirqd/207:15:012
18612993328,3cyclictest33-21ksoftirqd/207:15:012
18612993327,4cyclictest33-21ksoftirqd/209:56:452
18612993327,4cyclictest33-21ksoftirqd/209:52:362
18612993327,4cyclictest33-21ksoftirqd/209:22:562
18612993327,4cyclictest33-21ksoftirqd/207:47:192
18612993326,4cyclictest33-21ksoftirqd/212:20:402
18612993326,4cyclictest33-21ksoftirqd/212:20:392
18611993329,3cyclictest25-21ksoftirqd/111:15:281
18610993328,3cyclictest9-21ksoftirqd/011:00:220
18613993228,2cyclictest41-21ksoftirqd/311:15:003
18613993226,4cyclictest41-21ksoftirqd/310:30:373
18613993226,3cyclictest41-21ksoftirqd/308:40:173
1861399322,3cyclictest121rcu_preempt08:45:173
18612993227,3cyclictest33-21ksoftirqd/211:36:082
18612993227,3cyclictest33-21ksoftirqd/209:11:162
18612993226,4cyclictest33-21ksoftirqd/211:57:042
18612993226,4cyclictest33-21ksoftirqd/209:46:182
18612993226,4cyclictest33-21ksoftirqd/209:06:592
18612993226,4cyclictest33-21ksoftirqd/208:43:212
18612993225,4cyclictest33-21ksoftirqd/212:12:572
18612993225,4cyclictest33-21ksoftirqd/211:03:412
18612993225,4cyclictest33-21ksoftirqd/207:43:102
18612993225,4cyclictest33-21ksoftirqd/207:38:132
18613993126,3cyclictest41-21ksoftirqd/311:40:113
18613993126,3cyclictest41-21ksoftirqd/310:15:123
18613993125,3cyclictest41-21ksoftirqd/310:00:183
18613993124,4cyclictest41-21ksoftirqd/312:16:033
18612993126,3cyclictest33-21ksoftirqd/212:03:522
18612993126,3cyclictest33-21ksoftirqd/210:59:552
18612993126,3cyclictest33-21ksoftirqd/207:17:452
18612993126,3cyclictest1319-21snmpd08:38:052
18612993125,4cyclictest33-21ksoftirqd/208:10:422
18613993026,3cyclictest41-21ksoftirqd/310:35:193
18613993023,4cyclictest41-21ksoftirqd/308:20:033
18612993024,4cyclictest33-21ksoftirqd/211:45:112
18612993024,4cyclictest33-21ksoftirqd/210:07:172
18612993024,4cyclictest33-21ksoftirqd/207:30:392
18612993024,3cyclictest33-21ksoftirqd/211:09:192
18612993024,3cyclictest33-21ksoftirqd/209:30:002
18612993024,3cyclictest33-21ksoftirqd/209:30:002
18612993023,4cyclictest33-21ksoftirqd/212:08:482
138491300,0ptp4l401ktimersoftd/310:51:593
18613992925,2cyclictest41-21ksoftirqd/310:25:183
18613992924,3cyclictest41-21ksoftirqd/309:30:003
18613992924,3cyclictest41-21ksoftirqd/309:30:003
18613992924,3cyclictest41-21ksoftirqd/307:28:193
18613992923,3cyclictest41-21ksoftirqd/312:27:153
18612992924,3cyclictest33-21ksoftirqd/210:50:102
18612992924,3cyclictest33-21ksoftirqd/210:15:392
18612992923,4cyclictest33-21ksoftirqd/210:47:242
18612992923,4cyclictest33-21ksoftirqd/210:00:072
18612992923,4cyclictest33-21ksoftirqd/209:43:342
18612992923,3cyclictest33-21ksoftirqd/211:40:062
138491290,0ptp4l401ktimersoftd/307:20:073
18613992822,4cyclictest41-21ksoftirqd/310:12:353
18612992822,4cyclictest33-21ksoftirqd/208:48:452
18612992822,4cyclictest33-21ksoftirqd/207:21:412
18613992721,4cyclictest41-21ksoftirqd/307:46:453
18612992722,3cyclictest33-21ksoftirqd/209:39:112
18612992722,3cyclictest33-21ksoftirqd/207:58:482
18612992520,3cyclictest33-21ksoftirqd/210:37:112
18612992519,4cyclictest33-21ksoftirqd/208:28:552
18612992317,4cyclictest33-21ksoftirqd/210:33:282
18612992310,11cyclictest1344-21lldpd11:15:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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