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2026-04-18 - 15:48
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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 Sat Apr 18, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491222155,22phc2sys0-21swapper/307:06:593
101232204170,23sleep00-21swapper/007:07:480
101242203169,22sleep10-21swapper/107:07:491
101252202169,22sleep20-21swapper/207:07:502
10592997334,8cyclictest25-21ksoftirqd/108:20:001
10592996731,8cyclictest25-21ksoftirqd/108:40:001
10592996629,4cyclictest25-21ksoftirqd/108:30:171
10592996429,9cyclictest25-21ksoftirqd/109:15:201
10592996131,4cyclictest25-21ksoftirqd/109:10:241
10592996130,8cyclictest25-21ksoftirqd/108:40:111
10592996026,4cyclictest25-21ksoftirqd/112:00:181
10591996029,3cyclictest9-21ksoftirqd/008:50:160
10592995922,4cyclictest25-21ksoftirqd/111:10:161
10591995928,3cyclictest9-21ksoftirqd/012:30:150
10592995826,4cyclictest25-21ksoftirqd/111:30:151
10592995825,7cyclictest25-21ksoftirqd/109:45:001
10592995822,3cyclictest25-21ksoftirqd/109:25:151
10591995831,3cyclictest9-21ksoftirqd/010:35:240
171942570,4sleep2321ktimersoftd/208:30:172
10592995720,4cyclictest25-21ksoftirqd/109:35:191
10592995719,9cyclictest25-21ksoftirqd/112:35:231
10591995728,3cyclictest9-21ksoftirqd/012:00:210
10591995727,3cyclictest9-21ksoftirqd/011:35:180
10591995727,3cyclictest9-21ksoftirqd/011:35:180
10592995620,4cyclictest25-21ksoftirqd/112:33:351
10592995619,10cyclictest25-21ksoftirqd/108:00:201
10592995618,9cyclictest25-21ksoftirqd/107:35:171
10591995629,4cyclictest9-21ksoftirqd/007:30:180
23902550,3sleep20-21swapper/211:20:262
10591995527,4cyclictest9-21ksoftirqd/007:40:230
10591995525,3cyclictest9-21ksoftirqd/012:10:010
10591995525,10cyclictest9-21ksoftirqd/010:50:240
10592995422,9cyclictest25-21ksoftirqd/111:45:261
10592995419,4cyclictest25-21ksoftirqd/109:20:261
10591995423,4cyclictest9-21ksoftirqd/008:20:230
10591995327,3cyclictest9-21ksoftirqd/009:15:280
10591995326,3cyclictest9-21ksoftirqd/011:55:160
10591995325,4cyclictest9-21ksoftirqd/007:55:010
1059299522,9cyclictest25-21ksoftirqd/111:19:591
10592995224,11cyclictest25-21ksoftirqd/109:50:161
10592995223,9cyclictest25-21ksoftirqd/110:35:151
10592995220,7cyclictest25-21ksoftirqd/108:05:241
10591995222,6cyclictest9-21ksoftirqd/009:45:260
10592995123,9cyclictest25-21ksoftirqd/108:55:001
10592995120,5cyclictest25-21ksoftirqd/110:06:061
10591995126,3cyclictest9-21ksoftirqd/010:40:160
10591995118,7cyclictest9-21ksoftirqd/011:50:140
139391500,1ptp4l401ktimersoftd/312:05:353
134491500,7getstats1059499cyclictest09:43:573
1059299506,2cyclictest25-21ksoftirqd/108:25:191
10592995032,3cyclictest25-21ksoftirqd/107:50:191
10592995029,11cyclictest25-21ksoftirqd/112:10:191
10592995023,9cyclictest25-21ksoftirqd/107:40:191
10592995020,8cyclictest25-21ksoftirqd/107:55:221
10591995025,4cyclictest9-21ksoftirqd/011:30:210
10591995021,4cyclictest9-21ksoftirqd/008:15:140
10591995020,4cyclictest9-21ksoftirqd/008:40:190
10591995020,3cyclictest9-21ksoftirqd/010:00:230
10591995017,10cyclictest9-21ksoftirqd/011:15:190
10592994921,9cyclictest25-21ksoftirqd/107:20:171
1059299491,9cyclictest25-21ksoftirqd/109:45:361
1059299491,8cyclictest25-21ksoftirqd/110:30:151
10592994915,7cyclictest25-21ksoftirqd/112:27:291
1059299490,6cyclictest25-21ksoftirqd/107:30:001
10591994923,3cyclictest9-21ksoftirqd/009:35:200
10591994918,3cyclictest9-21ksoftirqd/010:25:260
10591994918,3cyclictest9-21ksoftirqd/008:50:010
1059299484,8cyclictest25-21ksoftirqd/109:00:191
1059299483,7cyclictest25-21ksoftirqd/107:15:011
1059299483,12cyclictest25-21ksoftirqd/107:45:281
10592994827,10cyclictest25-21ksoftirqd/110:45:261
10592994816,6cyclictest25-21ksoftirqd/110:55:221
10591994835,4cyclictest9-21ksoftirqd/008:40:000
10591994819,8cyclictest9-21ksoftirqd/009:40:220
10591994817,4cyclictest9-21ksoftirqd/009:50:260
1059299476,3cyclictest25-21ksoftirqd/107:15:001
1059299476,2cyclictest25-21ksoftirqd/110:20:181
1059299474,9cyclictest25-21ksoftirqd/110:25:261
1059299473,3cyclictest121rcu_preempt08:45:241
10592994719,10cyclictest25-21ksoftirqd/109:05:141
10592994712,10cyclictest25-21ksoftirqd/108:10:141
10591994721,3cyclictest9-21ksoftirqd/009:05:200
10591994718,3cyclictest9-21ksoftirqd/008:00:190
10591994715,4cyclictest9-21ksoftirqd/011:20:160
10591994714,4cyclictest9-21ksoftirqd/008:10:160
1059299467,7cyclictest25-21ksoftirqd/108:55:201
1059299466,7cyclictest25-21ksoftirqd/110:54:591
1059299466,3cyclictest25-21ksoftirqd/110:00:141
1059299465,6cyclictest25-21ksoftirqd/110:10:231
1059299464,9cyclictest25-21ksoftirqd/112:20:221
1059299464,6cyclictest25-21ksoftirqd/110:40:261
1059299462,9cyclictest25-21ksoftirqd/111:20:181
1059299461,8cyclictest25-21ksoftirqd/112:05:141
10592994616,8cyclictest25-21ksoftirqd/110:16:151
1059299460,11cyclictest25-21ksoftirqd/107:30:191
1059299457,3cyclictest25-21ksoftirqd/111:35:121
1059299457,3cyclictest25-21ksoftirqd/111:35:121
10591994530,3cyclictest9-21ksoftirqd/011:00:230
1059199451,2cyclictest121rcu_preempt08:55:170
1059299446,6cyclictest25-21ksoftirqd/111:25:121
1059299444,3cyclictest25-21ksoftirqd/109:30:261
1059299444,10cyclictest25-21ksoftirqd/111:50:181
1059299442,10cyclictest25-21ksoftirqd/112:20:001
1059199444,4cyclictest9-21ksoftirqd/007:45:250
10591994431,3cyclictest9-21ksoftirqd/012:20:220
10591994429,4cyclictest9-21ksoftirqd/010:30:150
1059299434,6cyclictest25-21ksoftirqd/111:00:251
1059299433,7cyclictest25-21ksoftirqd/111:05:141
1059299432,9cyclictest25-21ksoftirqd/109:55:171
1059299432,9cyclictest25-21ksoftirqd/109:55:171
1059299431,9cyclictest25-21ksoftirqd/111:55:151
10591994330,3cyclictest9-21ksoftirqd/008:30:150
10591994327,4cyclictest9-21ksoftirqd/007:30:000
10591994316,4cyclictest9-21ksoftirqd/010:20:140
10591994314,4cyclictest9-21ksoftirqd/011:40:130
1059199430,3cyclictest121rcu_preempt09:55:260
1059199430,3cyclictest121rcu_preempt09:55:260
139391420,0ptp4l401ktimersoftd/312:19:093
139391420,0ptp4l401ktimersoftd/311:01:273
10593994215,26cyclictest20479-21kworker/2:110:40:232
1059299425,3cyclictest25-21ksoftirqd/108:25:001
1059199427,4cyclictest9-21ksoftirqd/011:45:260
1059199426,4cyclictest9-21ksoftirqd/007:55:160
1059199424,3cyclictest30255-21chrt11:12:420
10591994230,3cyclictest9-21ksoftirqd/007:15:020
10591994219,3cyclictest9-21ksoftirqd/010:07:470
10591994216,3cyclictest9-21ksoftirqd/011:09:430
10591994212,5cyclictest9-21ksoftirqd/010:45:130
139391410,0ptp4l401ktimersoftd/311:55:513
139391410,0ptp4l401ktimersoftd/308:50:223
139391410,0ptp4l401ktimersoftd/307:50:363
10591994128,4cyclictest9-21ksoftirqd/007:12:350
10591994128,3cyclictest9-21ksoftirqd/010:20:010
1059199410,2cyclictest121rcu_preempt10:15:000
1059199410,2cyclictest121rcu_preempt09:25:220
139391400,1ptp4l401ktimersoftd/307:36:313
10593994034,4cyclictest6655-21cron10:25:002
1059199409,3cyclictest9-21ksoftirqd/009:00:180
10591994035,3cyclictest9-21ksoftirqd/009:34:590
10591994028,3cyclictest9-21ksoftirqd/008:25:190
1059199401,2cyclictest121rcu_preempt07:35:260
10591994011,4cyclictest9-21ksoftirqd/012:10:140
139391390,1ptp4l401ktimersoftd/312:00:443
1059199399,4cyclictest9-21ksoftirqd/008:05:150
1059199398,3cyclictest9-21ksoftirqd/009:10:230
1059199395,3cyclictest4634-21/usr/sbin/munin12:35:160
139391380,8ptp4l401ktimersoftd/308:13:563
139391380,1ptp4l401ktimersoftd/309:24:313
134391380,1getstats0-21swapper/309:49:583
10594993832,4cyclictest41-21ksoftirqd/308:20:113
10592993834,2cyclictest241ktimersoftd/111:40:161
1059199385,3cyclictest9-21ksoftirqd/007:20:140
10591993830,2cyclictest9-21ksoftirqd/011:25:190
10591993825,4cyclictest9-21ksoftirqd/009:20:240
10594993732,3cyclictest21235-21basename08:40:013
10594993729,5cyclictest41-21ksoftirqd/308:05:403
1059399379,27cyclictest0-21swapper/207:15:242
10593993730,4cyclictest33-21ksoftirqd/208:18:372
10591993731,3cyclictest9-21ksoftirqd/012:15:240
10591993725,3cyclictest9-21ksoftirqd/012:25:140
1059199371,2cyclictest121rcu_preempt10:55:170
139391360,0ptp4l401ktimersoftd/312:38:233
10594993630,4cyclictest41-21ksoftirqd/307:40:073
10594993629,4cyclictest41-21ksoftirqd/309:10:173
139391350,0ptp4l401ktimersoftd/307:45:133
10594993529,4cyclictest41-21ksoftirqd/312:32:593
10594993529,4cyclictest41-21ksoftirqd/310:17:413
10594993529,4cyclictest41-21ksoftirqd/309:53:383
10594993529,4cyclictest41-21ksoftirqd/309:05:123
10594993529,4cyclictest41-21ksoftirqd/307:16:573
10593993529,4cyclictest33-21ksoftirqd/211:17:412
10593993529,4cyclictest33-21ksoftirqd/210:27:512
10593993529,4cyclictest33-21ksoftirqd/207:58:202
139391340,0ptp4l401ktimersoftd/310:30:163
10594993428,4cyclictest41-21ksoftirqd/311:17:063
10594993428,4cyclictest41-21ksoftirqd/308:04:183
10594993428,4cyclictest41-21ksoftirqd/307:13:123
10594993427,4cyclictest41-21ksoftirqd/310:26:593
10594993427,4cyclictest41-21ksoftirqd/307:30:263
10593993428,4cyclictest33-21ksoftirqd/211:46:342
10593993428,4cyclictest33-21ksoftirqd/211:32:172
10593993428,4cyclictest33-21ksoftirqd/209:17:552
1059399340,17cyclictest5544-1kworker/2:0H07:25:002
139391330,0ptp4l401ktimersoftd/308:40:143
10594993328,3cyclictest41-21ksoftirqd/308:19:433
10594993327,4cyclictest41-21ksoftirqd/307:20:343
10593993328,3cyclictest33-21ksoftirqd/211:40:112
10593993328,3cyclictest33-21ksoftirqd/207:46:362
10593993327,4cyclictest33-21ksoftirqd/212:15:492
10593993327,4cyclictest33-21ksoftirqd/211:58:492
10593993327,4cyclictest33-21ksoftirqd/211:40:002
10593993327,4cyclictest33-21ksoftirqd/211:40:002
10593993327,4cyclictest33-21ksoftirqd/211:25:272
10593993327,4cyclictest33-21ksoftirqd/211:07:342
10593993327,4cyclictest33-21ksoftirqd/209:27:492
10593993327,4cyclictest33-21ksoftirqd/208:37:472
10593993327,4cyclictest33-21ksoftirqd/207:11:472
10593993327,4cyclictest13576-21irqrtprio09:30:182
1059399330,3cyclictest5544-1kworker/2:0H07:45:002
139391320,9ptp4l401ktimersoftd/311:26:013
139391320,0ptp4l401ktimersoftd/312:20:273
10594993227,3cyclictest41-21ksoftirqd/310:23:143
10594993227,3cyclictest139391ptp4l10:48:283
10594993226,4cyclictest41-21ksoftirqd/311:39:243
10594993226,4cyclictest41-21ksoftirqd/311:39:243
10594993226,4cyclictest41-21ksoftirqd/310:11:023
10594993226,4cyclictest41-21ksoftirqd/308:57:063
10593993226,4cyclictest33-21ksoftirqd/209:47:552
10593993226,4cyclictest33-21ksoftirqd/209:02:022
10593993226,4cyclictest33-21ksoftirqd/208:53:192
10593993226,4cyclictest33-21ksoftirqd/208:03:492
10593993225,4cyclictest33-21ksoftirqd/209:24:122
139391310,0ptp4l401ktimersoftd/310:51:523
139391310,0ptp4l401ktimersoftd/308:49:443
139391310,0ptp4l401ktimersoftd/307:55:233
10594993126,3cyclictest41-21ksoftirqd/311:30:163
10594993126,3cyclictest41-21ksoftirqd/311:12:003
10594993126,3cyclictest41-21ksoftirqd/309:31:483
10593993127,3cyclictest33-21ksoftirqd/211:50:422
10593993126,3cyclictest33-21ksoftirqd/212:20:572
10593993126,3cyclictest33-21ksoftirqd/210:07:012
10593993126,3cyclictest33-21ksoftirqd/209:53:062
10593993126,3cyclictest33-21ksoftirqd/208:14:202
10593993126,3cyclictest33-21ksoftirqd/207:25:142
10593993125,4cyclictest33-21ksoftirqd/211:14:522
10593993125,4cyclictest33-21ksoftirqd/211:02:412
10593993125,4cyclictest33-21ksoftirqd/210:55:072
10593993125,4cyclictest33-21ksoftirqd/210:39:582
10593993125,3cyclictest33-21ksoftirqd/210:14:312
139391300,0ptp4l401ktimersoftd/311:09:333
139391300,0ptp4l401ktimersoftd/310:59:503
139391300,0ptp4l401ktimersoftd/309:16:153
139391300,0ptp4l401ktimersoftd/308:30:283
139391300,0ptp4l401ktimersoftd/308:29:593
10594993025,3cyclictest41-21ksoftirqd/309:58:033
10594993025,3cyclictest41-21ksoftirqd/309:58:033
10594993025,3cyclictest41-21ksoftirqd/309:38:383
10594993024,4cyclictest41-21ksoftirqd/312:11:583
10594993023,4cyclictest41-21ksoftirqd/311:50:073
10594993023,4cyclictest28034-21irqrtprio10:00:183
10593993025,3cyclictest33-21ksoftirqd/208:27:202
10593993025,3cyclictest33-21ksoftirqd/208:24:312
10593993024,4cyclictest33-21ksoftirqd/212:33:032
10593993024,4cyclictest33-21ksoftirqd/210:19:572
10593993024,4cyclictest33-21ksoftirqd/207:34:132
10593993023,4cyclictest33-21ksoftirqd/208:08:352
1059399302,27cyclictest1158-21kworker/2:108:58:452
10593993012,3cyclictest16686-21open_inodes09:35:232
139391290,0ptp4l401ktimersoftd/309:29:253
10594992923,4cyclictest41-21ksoftirqd/310:44:453
10593992924,3cyclictest33-21ksoftirqd/210:01:152
10593992924,3cyclictest33-21ksoftirqd/209:43:482
10593992923,4cyclictest33-21ksoftirqd/208:42:322
10593992923,4cyclictest33-21ksoftirqd/207:51:232
1059399292,25cyclictest17342-21kworker/2:112:04:372
1059399291,27cyclictest20479-21kworker/2:109:55:332
1059399291,27cyclictest20479-21kworker/2:109:55:322
139391280,0ptp4l401ktimersoftd/309:03:373
10594992823,3cyclictest41-21ksoftirqd/307:25:353
10594992822,4cyclictest41-21ksoftirqd/311:44:253
1059399285,22cyclictest17342-21kworker/2:112:35:372
10593992823,3cyclictest33-21ksoftirqd/210:46:042
1059399282,25cyclictest17342-21kworker/2:112:25:372
1059399282,25cyclictest17342-21kworker/2:112:10:482
1059399282,25cyclictest17342-21kworker/2:112:07:012
10593992822,4cyclictest33-21ksoftirqd/209:13:132
10593992822,4cyclictest33-21ksoftirqd/208:49:552
1059399282,24cyclictest20479-21kworker/2:110:31:362
10593992821,4cyclictest33-21ksoftirqd/207:37:182
10594992722,3cyclictest41-21ksoftirqd/311:21:113
10594992721,4cyclictest41-21ksoftirqd/311:45:333
1059399272,24cyclictest1158-21kworker/2:109:07:092
10593992721,4cyclictest33-21ksoftirqd/210:51:102
139391260,0ptp4l401ktimersoftd/312:26:503
10594992621,3cyclictest41-21ksoftirqd/310:09:303
10594992620,4cyclictest41-21ksoftirqd/310:36:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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