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2026-08-27 - 09:09
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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 rackdslot2.osadl.org (updated Thu Aug 27, 2026 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8242209173,24sleep20-21swapper/219:07:262
9722206172,22sleep10-21swapper/119:09:221
7782205171,23sleep30-21swapper/319:06:513
7652203170,21sleep00-21swapper/019:06:400
1319997414,58cyclictest0-21swapper/119:35:251
68632650,4sleep16858-21turbostat22:45:011
310192600,4sleep231017-21apt-config21:20:002
310192600,4sleep231017-21apt-config21:20:002
139291580,1ptp4l401ktimersoftd/321:25:003
139291580,1ptp4l401ktimersoftd/321:25:003
170802560,1sleep00-21swapper/020:50:140
204052550,4sleep120409-21switchtime23:10:231
131999544,15cyclictest23997-21apt-get21:05:141
1319995416,36cyclictest0-21swapper/120:41:451
131999514,14cyclictest8417-21ls20:30:211
131999496,8cyclictest687-21sshd21:20:471
131999496,8cyclictest687-21sshd21:20:471
131999495,14cyclictest24625-21ssh00:25:251
132199489,29cyclictest21209-21seq20:58:523
1321994710,26cyclictest30815-21seq21:19:383
1321994710,26cyclictest30815-21seq21:19:373
139291450,0ptp4l401ktimersoftd/320:15:173
131999454,7cyclictest25134-21apt-get22:15:131
132199447,23cyclictest15437-21seq19:37:483
131999443,7cyclictest18305-21ls20:50:251
1318994439,3cyclictest28484-21apt21:15:000
1321994337,4cyclictest41-21ksoftirqd/300:40:003
132099430,42cyclictest0-21swapper/221:25:352
131999435,8cyclictest23789-21meminfo22:10:201
131999435,8cyclictest22237-21irqstats23:15:201
1318994337,3cyclictest17995-21cron19:45:000
139291420,0ptp4l401ktimersoftd/319:40:003
1320994011,28cyclictest0-21swapper/219:55:352
131999403,7cyclictest21114-21perl19:50:161
1321993933,4cyclictest41-21ksoftirqd/322:31:273
1321993832,4cyclictest41-21ksoftirqd/322:03:493
1321993832,4cyclictest41-21ksoftirqd/321:55:043
1321993832,4cyclictest41-21ksoftirqd/320:03:033
1321993832,4cyclictest41-21ksoftirqd/319:26:203
1321993832,4cyclictest41-21ksoftirqd/319:22:473
1321993831,4cyclictest41-21ksoftirqd/322:29:423
1321993831,4cyclictest41-21ksoftirqd/322:29:413
132199380,4cyclictest22404-21taskset19:50:493
132099380,37cyclictest0-21swapper/222:10:242
1319993833,3cyclictest20489-21turbostat00:20:011
1318993831,4cyclictest9-21ksoftirqd/023:43:290
1318993831,4cyclictest9-21ksoftirqd/023:43:290
139591372,10phc2sys1279-21calmdown-rtkit19:10:013
139591372,10phc2sys1279-21calmdown-rtkit19:10:013
139291370,1ptp4l401ktimersoftd/323:14:253
1321993731,4cyclictest41-21ksoftirqd/321:08:463
1321993731,4cyclictest41-21ksoftirqd/320:26:543
1321993731,4cyclictest41-21ksoftirqd/300:32:383
1321993730,4cyclictest41-21ksoftirqd/323:17:593
1321993722,12cyclictest41-21ksoftirqd/321:50:013
1320993732,3cyclictest33-21ksoftirqd/222:50:012
1320993731,4cyclictest33-21ksoftirqd/223:31:072
1320993731,4cyclictest33-21ksoftirqd/222:25:322
1320993731,4cyclictest33-21ksoftirqd/222:25:322
1320993731,4cyclictest33-21ksoftirqd/221:21:572
1320993731,4cyclictest33-21ksoftirqd/221:21:562
1320993731,4cyclictest33-21ksoftirqd/220:15:092
1320993731,4cyclictest33-21ksoftirqd/219:38:512
1320993731,4cyclictest33-21ksoftirqd/200:34:102
1320993730,4cyclictest33-21ksoftirqd/221:38:022
1319993732,3cyclictest22459-21cron22:10:001
1319993731,4cyclictest25-21ksoftirqd/121:39:041
1319993730,4cyclictest25-21ksoftirqd/122:21:421
1318993731,4cyclictest9-21ksoftirqd/020:31:560
1318993730,4cyclictest9-21ksoftirqd/023:17:370
132199368,27cyclictest31083-21kworker/3:220:51:043
1321993629,5cyclictest41-21ksoftirqd/319:55:323
1320993631,3cyclictest33-21ksoftirqd/221:30:122
1319993629,5cyclictest25-21ksoftirqd/123:56:451
1319993629,4cyclictest25-21ksoftirqd/122:48:581
1318993630,4cyclictest9-21ksoftirqd/023:45:520
1318993630,4cyclictest9-21ksoftirqd/021:49:070
41298350,8rtkit-daemon0-21swapper/300:21:053
41298350,3rtkit-daemon0-21swapper/000:37:500
1321993530,3cyclictest41-21ksoftirqd/322:36:253
1321993529,4cyclictest41-21ksoftirqd/323:55:023
1321993529,4cyclictest41-21ksoftirqd/323:54:273
1321993529,4cyclictest41-21ksoftirqd/323:08:333
1321993529,4cyclictest41-21ksoftirqd/322:11:053
1321993529,4cyclictest41-21ksoftirqd/321:25:553
1321993529,4cyclictest41-21ksoftirqd/320:35:443
1321993529,4cyclictest41-21ksoftirqd/300:10:483
1321993510,22cyclictest217-21systemd-journal23:46:153
1320993530,3cyclictest33-21ksoftirqd/220:10:112
1320993530,3cyclictest33-21ksoftirqd/200:38:462
1320993530,3cyclictest33-21ksoftirqd/200:15:092
1320993529,4cyclictest33-21ksoftirqd/222:09:392
1320993529,4cyclictest33-21ksoftirqd/200:24:152
1319993530,3cyclictest25-21ksoftirqd/122:01:111
1319993529,4cyclictest25-21ksoftirqd/121:17:071
1319993529,4cyclictest25-21ksoftirqd/121:17:071
1319993529,4cyclictest25-21ksoftirqd/120:01:571
1319993528,4cyclictest25-21ksoftirqd/123:50:361
1319993528,4cyclictest25-21ksoftirqd/120:21:381
1319993528,4cyclictest25-21ksoftirqd/119:33:041
1319993528,4cyclictest25-21ksoftirqd/100:30:101
1318993529,4cyclictest9-21ksoftirqd/022:55:010
1318993529,4cyclictest9-21ksoftirqd/022:12:460
1318993529,4cyclictest9-21ksoftirqd/022:06:200
1318993529,4cyclictest9-21ksoftirqd/021:56:370
1318993529,4cyclictest9-21ksoftirqd/021:42:370
1318993529,4cyclictest9-21ksoftirqd/020:37:020
132199349,22cyclictest14079-21cut00:05:223
1321993429,3cyclictest41-21ksoftirqd/300:26:473
1321993428,4cyclictest41-21ksoftirqd/323:34:563
1321993428,4cyclictest41-21ksoftirqd/323:00:313
1321993428,4cyclictest41-21ksoftirqd/322:18:553
1321993428,4cyclictest41-21ksoftirqd/321:14:483
1321993428,4cyclictest41-21ksoftirqd/300:01:003
1320993429,3cyclictest33-21ksoftirqd/221:10:092
1320993429,3cyclictest33-21ksoftirqd/219:43:552
1320993429,3cyclictest33-21ksoftirqd/219:24:102
1320993429,3cyclictest33-21ksoftirqd/219:19:222
1320993428,4cyclictest33-21ksoftirqd/223:55:012
131999343,15cyclictest16917-21meminfo19:40:271
1319993429,3cyclictest25-21ksoftirqd/121:56:381
1319993429,3cyclictest25-21ksoftirqd/121:34:251
1319993429,3cyclictest25-21ksoftirqd/120:48:421
1319993428,4cyclictest25-21ksoftirqd/122:59:451
1319993428,4cyclictest25-21ksoftirqd/122:51:591
1319993428,4cyclictest25-21ksoftirqd/100:37:461
1319993428,4cyclictest25-21ksoftirqd/100:08:411
1319993428,3cyclictest25-21ksoftirqd/123:02:461
1319993428,3cyclictest25-21ksoftirqd/121:25:591
1319993427,4cyclictest25-21ksoftirqd/121:13:581
1319993427,4cyclictest25-21ksoftirqd/120:10:001
1318993430,3cyclictest9-21ksoftirqd/021:33:060
1318993429,3cyclictest9-21ksoftirqd/023:33:300
1318993429,3cyclictest9-21ksoftirqd/022:00:380
1318993429,3cyclictest9-21ksoftirqd/020:20:360
1318993428,4cyclictest9-21ksoftirqd/023:57:010
1318993428,4cyclictest9-21ksoftirqd/022:42:070
1318993428,4cyclictest9-21ksoftirqd/020:06:130
1318993428,3cyclictest9-21ksoftirqd/023:50:010
1318993427,4cyclictest9-21ksoftirqd/021:27:410
131899342,29cyclictest30858-21uname22:25:190
131899342,29cyclictest30858-21uname22:25:190
1321993328,3cyclictest41-21ksoftirqd/323:43:003
1321993328,3cyclictest41-21ksoftirqd/323:43:003
1321993328,3cyclictest41-21ksoftirqd/322:49:043
1321993328,3cyclictest41-21ksoftirqd/322:24:053
1321993328,3cyclictest41-21ksoftirqd/321:50:403
1321993328,3cyclictest41-21ksoftirqd/321:33:253
1321993328,3cyclictest41-21ksoftirqd/320:32:243
1321993327,4cyclictest41-21ksoftirqd/322:58:393
1321993327,4cyclictest41-21ksoftirqd/321:00:363
1321993327,4cyclictest41-21ksoftirqd/319:48:313
1321993327,4cyclictest41-21ksoftirqd/319:48:313
1321993327,4cyclictest41-21ksoftirqd/319:18:183
1321993317,14cyclictest4724-21latency_hist20:25:003
1321993311,19cyclictest27628-21cut23:25:233
1320993328,3cyclictest33-21ksoftirqd/223:43:372
1320993328,3cyclictest33-21ksoftirqd/223:43:362
1320993328,3cyclictest33-21ksoftirqd/222:33:132
1320993328,3cyclictest33-21ksoftirqd/221:05:132
1320993328,3cyclictest33-21ksoftirqd/220:37:202
1320993328,3cyclictest33-21ksoftirqd/220:21:152
1320993328,3cyclictest33-21ksoftirqd/219:11:352
1320993328,3cyclictest33-21ksoftirqd/219:11:352
1320993328,3cyclictest33-21ksoftirqd/200:13:142
1320993327,4cyclictest33-21ksoftirqd/220:58:502
131999335,12cyclictest9511-21memory21:40:211
1319993328,3cyclictest25-21ksoftirqd/120:38:551
1319993328,3cyclictest25-21ksoftirqd/119:22:491
1319993327,4cyclictest25-21ksoftirqd/123:43:421
1319993327,4cyclictest25-21ksoftirqd/123:43:411
1319993327,4cyclictest25-21ksoftirqd/122:34:051
1318993328,3cyclictest9-21ksoftirqd/020:49:510
1318993328,3cyclictest9-21ksoftirqd/019:50:130
1318993327,4cyclictest9-21ksoftirqd/023:35:420
1318993327,4cyclictest9-21ksoftirqd/022:20:480
1318993327,4cyclictest9-21ksoftirqd/021:02:170
1318993327,4cyclictest9-21ksoftirqd/020:55:590
1318993327,4cyclictest9-21ksoftirqd/019:27:050
1318993326,4cyclictest9-21ksoftirqd/022:32:270
1318993326,4cyclictest9-21ksoftirqd/020:10:060
1318993326,4cyclictest9-21ksoftirqd/000:22:000
1318993326,4cyclictest9-21ksoftirqd/000:13:000
1321993227,3cyclictest41-21ksoftirqd/320:45:593
1321993226,4cyclictest41-21ksoftirqd/322:52:093
1321993226,4cyclictest41-21ksoftirqd/321:39:183
1321993226,4cyclictest41-21ksoftirqd/319:30:453
1321993213,16cyclictest23864-21cat23:20:143
1321993210,19cyclictest31880-21unixbench_singl20:10:273
1320993227,3cyclictest33-21ksoftirqd/223:20:032
1320993227,3cyclictest33-21ksoftirqd/222:20:122
1320993227,3cyclictest33-21ksoftirqd/220:06:552
1320993226,4cyclictest33-21ksoftirqd/223:18:512
1320993226,4cyclictest33-21ksoftirqd/223:10:572
1320993226,4cyclictest33-21ksoftirqd/222:50:472
1320993226,4cyclictest33-21ksoftirqd/222:18:532
1320993226,4cyclictest33-21ksoftirqd/221:54:542
132099322,28cyclictest14208-21kworker/2:119:45:252
132099322,28cyclictest14208-21kworker/2:119:45:252
131999325,15cyclictest8639-21cpuspeed_turbos19:25:131
1319993227,3cyclictest25-21ksoftirqd/123:25:351
1319993226,4cyclictest25-21ksoftirqd/119:49:411
1319993226,4cyclictest25-21ksoftirqd/119:49:411
1319993225,4cyclictest25-21ksoftirqd/123:49:391
1319993225,4cyclictest25-21ksoftirqd/123:20:311
1318993227,3cyclictest9-21ksoftirqd/023:23:580
1318993227,3cyclictest9-21ksoftirqd/023:04:360
1318993226,4cyclictest9-21ksoftirqd/023:29:400
1318993226,4cyclictest9-21ksoftirqd/020:25:590
1318993226,4cyclictest9-21ksoftirqd/019:21:200
1318993226,4cyclictest9-21ksoftirqd/000:06:070
1318993226,3cyclictest9-21ksoftirqd/020:42:010
1318993226,3cyclictest9-21ksoftirqd/020:03:040
1318993225,4cyclictest9-21ksoftirqd/023:11:310
1321993126,3cyclictest41-21ksoftirqd/323:36:103
1321993125,4cyclictest41-21ksoftirqd/300:18:023
132199310,4cyclictest20435-21cpuspeed_turbos22:05:133
1320993127,3cyclictest33-21ksoftirqd/220:50:012
1320993126,3cyclictest33-21ksoftirqd/223:00:102
1320993126,3cyclictest33-21ksoftirqd/221:56:152
1320993126,3cyclictest33-21ksoftirqd/219:50:242
1320993126,3cyclictest33-21ksoftirqd/219:25:512
1320993126,3cyclictest33-21ksoftirqd/200:27:032
1320993125,4cyclictest33-21ksoftirqd/223:38:052
1320993125,4cyclictest33-21ksoftirqd/221:45:522
1320993125,3cyclictest33-21ksoftirqd/222:39:512
1320993124,5cyclictest33-21ksoftirqd/220:04:462
1319993126,3cyclictest25-21ksoftirqd/120:00:011
1319993125,4cyclictest25-21ksoftirqd/121:51:091
1319993125,4cyclictest25-21ksoftirqd/121:01:421
1319993124,4cyclictest25-21ksoftirqd/122:35:461
1319993124,4cyclictest25-21ksoftirqd/100:02:541
1318993126,3cyclictest9-21ksoftirqd/023:05:540
1318993126,3cyclictest9-21ksoftirqd/021:38:480
1318993126,3cyclictest9-21ksoftirqd/021:19:150
1318993126,3cyclictest9-21ksoftirqd/021:19:150
1318993125,3cyclictest9-21ksoftirqd/022:37:040
1318993124,4cyclictest9-21ksoftirqd/000:31:270
1321993024,4cyclictest41-21ksoftirqd/320:42:433
132099303,3cyclictest121rcu_preempt20:25:252
1320993025,3cyclictest33-21ksoftirqd/221:04:362
1320993024,4cyclictest33-21ksoftirqd/223:55:422
1319993025,3cyclictest25-21ksoftirqd/120:15:331
1318993025,3cyclictest9-21ksoftirqd/022:51:210
1318993024,4cyclictest9-21ksoftirqd/020:17:280
1318993024,3cyclictest9-21ksoftirqd/021:05:410
1318993024,3cyclictest9-21ksoftirqd/020:00:010
1318993023,5cyclictest9-21ksoftirqd/021:54:200
132199297,19cyclictest5641-21irqstats22:40:163
132199297,19cyclictest29393-21sed20:05:283
1320992924,3cyclictest33-21ksoftirqd/222:40:092
1320992924,3cyclictest33-21ksoftirqd/220:32:272
1320992924,3cyclictest33-21ksoftirqd/219:35:002
1320992924,3cyclictest33-21ksoftirqd/200:01:102
132099291,27cyclictest14208-21kworker/2:121:40:532
1319992923,4cyclictest25-21ksoftirqd/122:28:081
1319992923,4cyclictest25-21ksoftirqd/122:28:071
1319992923,4cyclictest25-21ksoftirqd/120:28:311
1319992923,4cyclictest25-21ksoftirqd/120:10:351
1319992923,4cyclictest25-21ksoftirqd/100:20:321
1319992923,4cyclictest25-21ksoftirqd/100:10:421
1318992924,3cyclictest9-21ksoftirqd/022:46:120
1318992924,3cyclictest9-21ksoftirqd/019:35:110
1318992924,3cyclictest9-21ksoftirqd/000:30:010
1318992924,3cyclictest9-21ksoftirqd/000:17:450
1318992923,4cyclictest9-21ksoftirqd/021:24:040
1318992923,4cyclictest9-21ksoftirqd/021:24:030
1318992923,4cyclictest9-21ksoftirqd/019:12:010
1318992923,4cyclictest9-21ksoftirqd/019:12:010
1320992822,4cyclictest33-21ksoftirqd/223:47:432
1320992822,4cyclictest33-21ksoftirqd/223:25:042
131999283,22cyclictest4074-21df19:15:131
1319992823,3cyclictest25-21ksoftirqd/120:59:241
1318992823,3cyclictest9-21ksoftirqd/000:03:590
1318992822,4cyclictest9-21ksoftirqd/019:15:060
132199278,17cyclictest1308-21runrttasks21:44:373
1320992721,4cyclictest33-21ksoftirqd/200:05:392
1319992722,3cyclictest25-21ksoftirqd/123:35:461
1319992722,3cyclictest25-21ksoftirqd/123:05:111
1318992722,3cyclictest9-21ksoftirqd/019:45:220
1318992722,3cyclictest9-21ksoftirqd/019:45:220
1318992722,3cyclictest9-21ksoftirqd/019:30:420
1320992620,3cyclictest33-21ksoftirqd/222:02:012
1319992621,3cyclictest25-21ksoftirqd/119:10:221
1319992621,3cyclictest25-21ksoftirqd/119:10:221
1320992520,3cyclictest33-21ksoftirqd/223:09:012
1320992520,3cyclictest33-21ksoftirqd/222:56:122
1320992520,3cyclictest33-21ksoftirqd/220:52:532
1319992520,3cyclictest25-21ksoftirqd/121:46:311
1320992418,3cyclictest33-21ksoftirqd/220:40:082
1319992318,3cyclictest25-21ksoftirqd/123:31:181
1318992318,3cyclictest9-21ksoftirqd/022:15:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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