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2026-03-10 - 17:31
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Tue Mar 10, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147162210177,22sleep00-21swapper/007:06:410
147442204169,23sleep30-21swapper/307:07:063
146852203170,22sleep10-21swapper/107:06:191
151862202169,22sleep20-21swapper/207:09:212
3246821630,4sleep01552899cyclictest08:50:240
1523728163,10sleep10-21swapper/107:10:011
1553099663,61cyclictest24554-21kworker/2:009:40:332
15531996223,9cyclictest41-21ksoftirqd/307:25:243
15531995928,8cyclictest41-21ksoftirqd/308:00:013
280112580,6sleep233-21ksoftirqd/207:35:162
15531995821,4cyclictest41-21ksoftirqd/310:20:243
15531995625,7cyclictest41-21ksoftirqd/307:10:143
15531995519,8cyclictest41-21ksoftirqd/309:20:453
1553199535,8cyclictest41-21ksoftirqd/311:45:163
1553199535,8cyclictest41-21ksoftirqd/311:45:163
1553199534,9cyclictest41-21ksoftirqd/308:55:003
15531995326,7cyclictest41-21ksoftirqd/307:30:133
15531995321,7cyclictest41-21ksoftirqd/312:05:013
15531995321,3cyclictest41-21ksoftirqd/311:16:373
134491530,6getstats1553199cyclictest10:54:363
1553199525,9cyclictest41-21ksoftirqd/308:20:253
1553199523,8cyclictest41-21ksoftirqd/311:05:163
1553199513,9cyclictest41-21ksoftirqd/310:00:143
1553199503,8cyclictest41-21ksoftirqd/312:05:243
1553199503,7cyclictest41-21ksoftirqd/307:35:153
15531995019,7cyclictest41-21ksoftirqd/307:20:223
217612490,2sleep20-21swapper/209:35:262
217612490,2sleep20-21swapper/209:35:262
1553199497,10cyclictest41-21ksoftirqd/310:10:133
1553199495,4cyclictest41-21ksoftirqd/309:00:233
1553199494,4cyclictest41-21ksoftirqd/312:15:153
1553199493,8cyclictest41-21ksoftirqd/307:40:153
1553199493,7cyclictest41-21ksoftirqd/310:34:183
15531994923,7cyclictest41-21ksoftirqd/311:15:003
57898480,7rtkit-daemon0-21swapper/008:09:510
1553199485,8cyclictest41-21ksoftirqd/311:40:253
1553199485,7cyclictest41-21ksoftirqd/309:50:003
1553199485,6cyclictest41-21ksoftirqd/308:05:013
1553199484,8cyclictest41-21ksoftirqd/308:40:133
1553199484,8cyclictest41-21ksoftirqd/308:05:273
1553199484,4cyclictest41-21ksoftirqd/307:45:243
15531994816,7cyclictest41-21ksoftirqd/311:35:143
1553199480,6cyclictest401ktimersoftd/308:55:243
1553199476,9cyclictest41-21ksoftirqd/310:05:253
1553199476,7cyclictest41-21ksoftirqd/310:15:113
1553199474,7cyclictest41-21ksoftirqd/312:10:163
1553199474,7cyclictest41-21ksoftirqd/308:30:223
1553199474,7cyclictest41-21ksoftirqd/307:15:253
1553199470,11cyclictest41-21ksoftirqd/308:16:263
1553199466,9cyclictest41-21ksoftirqd/309:40:003
1553199466,9cyclictest41-21ksoftirqd/309:40:003
1553199465,7cyclictest41-21ksoftirqd/311:30:123
1553199464,8cyclictest41-21ksoftirqd/310:55:173
1553199463,8cyclictest41-21ksoftirqd/309:50:153
1553199463,4cyclictest41-21ksoftirqd/308:25:233
1553199463,4cyclictest41-21ksoftirqd/308:25:233
1553199461,6cyclictest41-21ksoftirqd/312:20:213
1553199455,7cyclictest41-21ksoftirqd/311:20:163
1553199455,7cyclictest41-21ksoftirqd/310:40:153
1553199455,6cyclictest41-21ksoftirqd/311:00:133
1553199454,8cyclictest41-21ksoftirqd/307:55:013
1553199454,7cyclictest41-21ksoftirqd/311:30:013
1553199453,7cyclictest41-21ksoftirqd/310:45:163
1553199453,6cyclictest41-21ksoftirqd/310:25:163
1553199453,6cyclictest41-21ksoftirqd/309:05:163
1553199452,6cyclictest41-21ksoftirqd/312:30:233
1553199452,6cyclictest41-21ksoftirqd/309:40:193
15531994519,8cyclictest41-21ksoftirqd/308:45:153
15531994516,7cyclictest41-21ksoftirqd/312:25:193
1553199444,8cyclictest41-21ksoftirqd/308:15:003
1553199444,6cyclictest41-21ksoftirqd/311:55:213
1553199444,6cyclictest41-21ksoftirqd/310:35:233
1553199443,6cyclictest41-21ksoftirqd/309:25:243
1553199442,6cyclictest41-21ksoftirqd/312:35:133
15531994417,7cyclictest41-21ksoftirqd/308:35:283
57898430,8rtkit-daemon0-21swapper/007:46:240
1553199434,9cyclictest41-21ksoftirqd/309:55:143
1553199434,6cyclictest41-21ksoftirqd/309:10:143
1553199433,6cyclictest41-21ksoftirqd/311:50:233
1553199424,7cyclictest41-21ksoftirqd/309:15:113
15531994215,7cyclictest41-21ksoftirqd/309:30:143
15529994237,3cyclictest28926-21fschecks_count11:00:151
15528994234,4cyclictest9-21ksoftirqd/007:25:240
15528994112,3cyclictest9-21ksoftirqd/010:55:200
15530993910,27cyclictest24554-21kworker/2:009:55:242
57898380,7rtkit-daemon0-21swapper/111:27:271
321692380,4sleep232173-21cpuspeed10:00:132
15530993833,3cyclictest33-21ksoftirqd/209:10:002
15530993831,5cyclictest33-21ksoftirqd/210:13:182
15529993833,3cyclictest25-21ksoftirqd/109:45:081
57898370,6rtkit-daemon0-21swapper/008:13:170
15530993731,4cyclictest33-21ksoftirqd/209:18:132
15530993730,4cyclictest33-21ksoftirqd/207:28:342
15530993724,11cyclictest33-21ksoftirqd/209:49:462
15529993731,4cyclictest25-21ksoftirqd/110:16:131
15529993731,4cyclictest25-21ksoftirqd/108:05:471
15528993732,3cyclictest9-21ksoftirqd/009:30:000
1552899372,32cyclictest21750-21kworker/0:010:50:180
15530993631,3cyclictest33-21ksoftirqd/207:10:202
15530993630,4cyclictest33-21ksoftirqd/209:31:492
15530993630,4cyclictest33-21ksoftirqd/208:21:542
15530993614,2cyclictest319202sleep212:14:592
1553099360,3cyclictest18941-1kworker/2:1H08:00:002
15529993631,3cyclictest25-21ksoftirqd/111:55:091
15529993631,3cyclictest25-21ksoftirqd/109:39:311
15529993631,3cyclictest25-21ksoftirqd/109:39:301
15529993631,3cyclictest25-21ksoftirqd/108:18:431
15529993630,4cyclictest25-21ksoftirqd/110:58:491
15529993630,4cyclictest25-21ksoftirqd/110:13:521
15529993630,4cyclictest25-21ksoftirqd/109:31:011
15529993629,5cyclictest25-21ksoftirqd/107:15:571
15528993632,2cyclictest9-21ksoftirqd/009:35:190
15528993632,2cyclictest9-21ksoftirqd/009:35:190
15528993631,3cyclictest9-21ksoftirqd/012:05:000
15528993631,2cyclictest9-21ksoftirqd/009:40:140
15528993631,2cyclictest9-21ksoftirqd/009:00:010
15528993630,3cyclictest9-21ksoftirqd/011:20:200
15530993530,3cyclictest33-21ksoftirqd/208:53:502
15530993529,4cyclictest33-21ksoftirqd/212:20:582
15530993529,4cyclictest33-21ksoftirqd/211:20:442
15530993529,4cyclictest33-21ksoftirqd/211:07:542
15530993529,4cyclictest33-21ksoftirqd/210:50:492
15530993528,5cyclictest33-21ksoftirqd/210:25:452
1553099350,18cyclictest27380-21cron07:35:012
15529993529,4cyclictest25-21ksoftirqd/111:44:341
15529993529,4cyclictest25-21ksoftirqd/108:52:491
15529993529,4cyclictest25-21ksoftirqd/108:22:401
1552899355,3cyclictest121rcu_preempt10:15:000
15528993531,3cyclictest9-21ksoftirqd/007:25:010
15528993531,2cyclictest9-21ksoftirqd/012:15:180
15528993531,2cyclictest9-21ksoftirqd/011:59:170
15528993531,2cyclictest9-21ksoftirqd/011:55:000
15528993531,2cyclictest9-21ksoftirqd/010:40:000
15528993530,3cyclictest9-21ksoftirqd/012:35:130
15528993530,3cyclictest9-21ksoftirqd/011:09:100
15528993530,3cyclictest9-21ksoftirqd/008:30:000
15528993530,3cyclictest9-21ksoftirqd/008:30:000
15528993530,2cyclictest9-21ksoftirqd/011:40:250
15528993529,4cyclictest9-21ksoftirqd/009:12:410
15528993529,3cyclictest9-21ksoftirqd/011:35:270
15528993529,3cyclictest9-21ksoftirqd/009:55:000
15528993528,4cyclictest9-21ksoftirqd/010:07:580
57898340,2rtkit-daemon0-21swapper/012:05:390
57898340,1rtkit-daemon0-21swapper/107:44:491
15530993430,3cyclictest33-21ksoftirqd/211:19:182
15530993429,3cyclictest33-21ksoftirqd/211:25:112
15530993428,4cyclictest33-21ksoftirqd/210:31:062
15530993428,4cyclictest33-21ksoftirqd/208:27:062
15530993428,4cyclictest33-21ksoftirqd/208:27:062
15530993428,4cyclictest33-21ksoftirqd/207:23:292
15530993428,3cyclictest33-21ksoftirqd/211:40:122
15529993429,3cyclictest25-21ksoftirqd/109:15:541
15529993429,3cyclictest25-21ksoftirqd/108:26:251
15529993429,3cyclictest25-21ksoftirqd/108:26:251
15529993429,3cyclictest11027-21fschecks_count11:30:151
15529993428,4cyclictest25-21ksoftirqd/112:12:101
15529993428,4cyclictest25-21ksoftirqd/112:09:131
15529993428,4cyclictest25-21ksoftirqd/111:10:081
15529993428,4cyclictest25-21ksoftirqd/111:07:361
15529993428,4cyclictest25-21ksoftirqd/108:00:351
1552899346,10cyclictest9-21ksoftirqd/008:00:000
15528993430,2cyclictest9-21ksoftirqd/008:45:000
15528993430,2cyclictest9-21ksoftirqd/007:35:010
15528993429,3cyclictest9-21ksoftirqd/011:20:000
15528993429,3cyclictest9-21ksoftirqd/011:00:130
15528993429,3cyclictest9-21ksoftirqd/010:00:150
15528993429,2cyclictest9-21ksoftirqd/012:30:000
15528993429,2cyclictest9-21ksoftirqd/010:25:000
15528993429,2cyclictest9-21ksoftirqd/009:45:160
15530993327,4cyclictest33-21ksoftirqd/212:17:252
15530993327,4cyclictest33-21ksoftirqd/210:23:162
15530993327,4cyclictest33-21ksoftirqd/209:12:072
15530993327,4cyclictest33-21ksoftirqd/207:43:012
15530993326,5cyclictest33-21ksoftirqd/208:44:192
1553099331,30cyclictest13526-21fschecks_count09:20:152
15529993328,3cyclictest25-21ksoftirqd/112:04:081
15529993328,3cyclictest25-21ksoftirqd/109:05:071
15529993328,3cyclictest25-21ksoftirqd/107:50:151
15529993327,4cyclictest25-21ksoftirqd/112:31:241
15529993327,4cyclictest25-21ksoftirqd/111:49:281
15529993327,4cyclictest25-21ksoftirqd/111:49:281
15529993327,4cyclictest25-21ksoftirqd/110:05:301
15529993327,4cyclictest25-21ksoftirqd/109:52:461
15529993327,4cyclictest25-21ksoftirqd/107:28:481
15528993329,2cyclictest9-21ksoftirqd/010:00:010
15528993329,2cyclictest9-21ksoftirqd/008:20:000
15528993328,3cyclictest9-21ksoftirqd/012:30:180
15528993328,3cyclictest9-21ksoftirqd/009:07:570
15528993328,3cyclictest9-21ksoftirqd/007:50:170
15528993327,3cyclictest9-21ksoftirqd/012:25:000
15528993327,3cyclictest9-21ksoftirqd/010:30:120
15530993226,4cyclictest33-21ksoftirqd/212:09:512
15530993226,4cyclictest33-21ksoftirqd/210:59:342
15530993226,4cyclictest33-21ksoftirqd/210:06:032
15530993226,4cyclictest33-21ksoftirqd/208:57:202
1553099320,15cyclictest2110-21cron07:50:002
15529993227,3cyclictest25-21ksoftirqd/111:52:121
15529993227,3cyclictest25-21ksoftirqd/108:36:291
15529993226,4cyclictest25-21ksoftirqd/110:44:571
15529993226,4cyclictest25-21ksoftirqd/110:36:351
15529993225,4cyclictest25-21ksoftirqd/111:17:101
1552899326,7cyclictest121rcu_preempt10:45:210
1552899323,2cyclictest121rcu_preempt08:00:240
15528993229,2cyclictest9-21ksoftirqd/011:10:120
15528993228,3cyclictest9-21ksoftirqd/007:43:530
15528993228,2cyclictest9-21ksoftirqd/011:25:250
15528993227,3cyclictest9-21ksoftirqd/011:45:140
15528993227,3cyclictest9-21ksoftirqd/011:45:140
15528993227,3cyclictest9-21ksoftirqd/009:30:180
15528993227,2cyclictest9-21ksoftirqd/012:10:200
15530993126,3cyclictest33-21ksoftirqd/211:59:172
15530993125,4cyclictest33-21ksoftirqd/212:35:582
15530993125,4cyclictest33-21ksoftirqd/212:27:322
15530993125,4cyclictest33-21ksoftirqd/211:46:562
15530993125,4cyclictest33-21ksoftirqd/211:46:562
15530993125,4cyclictest33-21ksoftirqd/210:35:072
15530993125,4cyclictest33-21ksoftirqd/210:16:542
15530993124,5cyclictest33-21ksoftirqd/211:03:522
15529993127,3cyclictest25-21ksoftirqd/110:54:091
15529993126,3cyclictest25-21ksoftirqd/112:28:381
15529993126,3cyclictest25-21ksoftirqd/109:23:501
15529993125,4cyclictest25-21ksoftirqd/109:03:521
15529993125,4cyclictest25-21ksoftirqd/108:45:311
15528993127,3cyclictest9-21ksoftirqd/010:15:000
15528993127,3cyclictest9-21ksoftirqd/009:15:240
15528993127,2cyclictest9-21ksoftirqd/010:40:130
15528993126,3cyclictest9-21ksoftirqd/009:05:010
15528993126,3cyclictest9-21ksoftirqd/008:30:210
1552899310,3cyclictest9-21ksoftirqd/007:35:210
1553099306,22cyclictest9176-21kworker/2:208:07:572
15530993025,3cyclictest33-21ksoftirqd/211:34:452
15530993025,3cyclictest33-21ksoftirqd/210:48:192
15530993025,3cyclictest33-21ksoftirqd/208:48:142
15530993024,4cyclictest33-21ksoftirqd/212:01:042
15529993025,3cyclictest25-21ksoftirqd/107:45:541
15529993024,4cyclictest25-21ksoftirqd/112:38:571
15529993024,4cyclictest25-21ksoftirqd/112:18:081
15529993024,4cyclictest25-21ksoftirqd/110:45:091
15529993023,4cyclictest25-21ksoftirqd/108:14:421
15528993025,3cyclictest9-21ksoftirqd/010:25:170
15528993025,3cyclictest9-21ksoftirqd/008:35:220
15528993025,3cyclictest9-21ksoftirqd/007:10:060
15528993024,4cyclictest9-21ksoftirqd/008:46:220
15528993024,4cyclictest9-21ksoftirqd/007:16:000
1553099296,21cyclictest9176-21kworker/2:208:15:022
15530992924,3cyclictest33-21ksoftirqd/208:32:342
15530992923,4cyclictest33-21ksoftirqd/209:03:342
15530992923,4cyclictest33-21ksoftirqd/207:54:092
15529992924,3cyclictest25-21ksoftirqd/110:29:071
15529992924,3cyclictest25-21ksoftirqd/107:55:521
15529992923,4cyclictest25-21ksoftirqd/110:01:121
15529992923,4cyclictest25-21ksoftirqd/108:56:501
15529992923,4cyclictest25-21ksoftirqd/107:37:271
15529992922,5cyclictest25-21ksoftirqd/109:14:111
15529992915,13cyclictest0-21swapper/109:29:551
15528992924,3cyclictest9-21ksoftirqd/009:20:230
1553099287,20cyclictest9176-21kworker/2:208:04:372
15530992822,4cyclictest33-21ksoftirqd/212:31:532
15530992822,4cyclictest33-21ksoftirqd/208:12:152
15530992822,4cyclictest33-21ksoftirqd/207:18:312
15529992822,4cyclictest25-21ksoftirqd/112:23:131
15528992823,3cyclictest9-21ksoftirqd/011:30:160
15528992823,3cyclictest9-21ksoftirqd/008:20:170
1553099275,21cyclictest24554-21kworker/2:009:50:212
1553099274,22cyclictest30494-21kworker/2:111:12:092
1553099273,22cyclictest24554-21kworker/2:010:44:412
15530992721,4cyclictest33-21ksoftirqd/209:28:162
1553099271,24cyclictest8988-21kworker/2:211:37:492
15529992722,3cyclictest25-21ksoftirqd/108:33:551
15529992721,4cyclictest25-21ksoftirqd/110:33:021
15529992721,4cyclictest25-21ksoftirqd/109:55:551
15529992721,4cyclictest25-21ksoftirqd/107:20:091
1553099262,22cyclictest9176-21kworker/2:208:35:412
15530992621,3cyclictest33-21ksoftirqd/211:52:082
15529992520,3cyclictest25-21ksoftirqd/111:38:391
15529992519,4cyclictest25-21ksoftirqd/109:41:351
15529992216,4cyclictest25-21ksoftirqd/110:23:401
15529991914,3cyclictest25-21ksoftirqd/108:43:331
15529991813,3cyclictest26617-21sendmail_mailst07:30:241
15529991811,4cyclictest8041-21cat11:25:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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