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2025-09-15 - 08:28
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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 rackdslot4.osadl.org (updated Mon Sep 15, 2025 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134791210166,32phc2sys0-21swapper/319:06:063
135702203168,23sleep00-21swapper/019:07:080
135712202169,22sleep10-21swapper/119:07:101
135672202170,21sleep20-21swapper/219:07:062
134991620,0ptp4l391rcuc/322:58:083
181312570,6sleep318133-21ptp4l-jitter23:40:243
134991570,1ptp4l401ktimersoftd/300:30:143
145752560,2sleep00-21swapper/019:10:170
134991500,1ptp4l401ktimersoftd/320:23:373
1408399463,9cyclictest9-21ksoftirqd/000:10:170
1408399463,9cyclictest9-21ksoftirqd/000:10:170
14083994412,7cyclictest9-21ksoftirqd/020:35:000
134991440,1ptp4l401ktimersoftd/321:03:573
14086994338,3cyclictest41-21ksoftirqd/321:55:003
14086994338,3cyclictest41-21ksoftirqd/321:54:593
1408399438,4cyclictest9-21ksoftirqd/023:30:000
14084994236,4cyclictest9064-21cron23:24:591
14084994235,4cyclictest6420-21cron20:00:001
1408399428,6cyclictest9-21ksoftirqd/023:00:230
134991420,0ptp4l401ktimersoftd/322:05:143
36998410,2rtkit-daemon0-21swapper/123:03:031
156082413,7sleep125-21ksoftirqd/121:25:231
14086994128,10cyclictest41-21ksoftirqd/320:55:213
14083994110,5cyclictest9-21ksoftirqd/020:25:220
14086994035,3cyclictest41-21ksoftirqd/319:45:003
14086994034,3cyclictest41-21ksoftirqd/300:30:003
1408599402,35cyclictest1837-21cat23:10:012
1408399404,3cyclictest9-21ksoftirqd/000:00:190
14083994035,3cyclictest18934-21cron23:45:010
14083994033,4cyclictest9-21ksoftirqd/019:40:000
14083994010,4cyclictest9-21ksoftirqd/022:05:000
134991400,0ptp4l401ktimersoftd/321:42:163
130891400,4getstats26802-21cron20:45:013
14086993935,2cyclictest41-21ksoftirqd/323:19:593
14086993934,3cyclictest41-21ksoftirqd/322:47:043
1408399397,7cyclictest9-21ksoftirqd/023:15:010
1408399395,2cyclictest9-21ksoftirqd/022:35:280
1408399394,6cyclictest9-21ksoftirqd/022:25:190
14083993934,3cyclictest9-21ksoftirqd/022:49:590
1408399391,3cyclictest121rcu_preempt19:15:270
14083993911,7cyclictest9-21ksoftirqd/020:15:280
1408399390,3cyclictest121rcu_preempt23:35:240
134991390,2ptp4l0-21swapper/320:50:143
36998380,4rtkit-daemon14245-21apt-get23:35:111
1408699387,4cyclictest41-21ksoftirqd/300:10:003
14086993833,3cyclictest41-21ksoftirqd/322:25:003
14086993833,2cyclictest41-21ksoftirqd/320:40:003
14086993833,2cyclictest41-21ksoftirqd/320:40:003
14086993831,4cyclictest41-21ksoftirqd/323:46:333
14085993832,3cyclictest31725-21dump-pmu-power00:09:592
1408399385,6cyclictest9-21ksoftirqd/022:20:170
1408399384,6cyclictest9-21ksoftirqd/020:45:220
1408399384,4cyclictest9-21ksoftirqd/020:00:250
1408399384,2cyclictest9-21ksoftirqd/020:05:190
14083993833,3cyclictest9-21ksoftirqd/021:20:010
14083993833,3cyclictest9-21ksoftirqd/020:41:390
14086993733,2cyclictest41-21ksoftirqd/300:05:003
14086993732,3cyclictest41-21ksoftirqd/320:31:433
14086993732,3cyclictest41-21ksoftirqd/320:20:003
14086993732,3cyclictest41-21ksoftirqd/319:30:153
14086993731,3cyclictest41-21ksoftirqd/300:10:213
14086993731,3cyclictest41-21ksoftirqd/300:10:213
14086993730,4cyclictest41-21ksoftirqd/323:08:573
14085993731,4cyclictest33-21ksoftirqd/222:08:022
14085993731,4cyclictest33-21ksoftirqd/220:24:132
14085993731,4cyclictest33-21ksoftirqd/200:23:422
14085993730,4cyclictest33-21ksoftirqd/222:18:592
1408599371,33cyclictest12144-21cron00:34:592
14084993732,3cyclictest25-21ksoftirqd/123:47:241
14084993731,4cyclictest25-21ksoftirqd/119:32:521
1408499370,2cyclictest0-21swapper/122:41:471
1408399378,3cyclictest9-21ksoftirqd/000:05:170
1408399377,4cyclictest9-21ksoftirqd/023:55:190
1408399377,4cyclictest9-21ksoftirqd/020:25:010
1408399375,3cyclictest9-21ksoftirqd/000:30:140
1408399374,6cyclictest9-21ksoftirqd/000:25:180
1408399373,3cyclictest9-21ksoftirqd/000:15:230
14083993732,3cyclictest9-21ksoftirqd/020:00:000
1408399371,3cyclictest9-21ksoftirqd/021:00:170
1408399371,3cyclictest121rcu_preempt00:35:220
1408399370,7cyclictest9-21ksoftirqd/023:15:230
134991370,1ptp4l391rcuc/321:34:113
134991370,0ptp4l401ktimersoftd/321:05:363
14086993632,3cyclictest41-21ksoftirqd/323:04:163
14086993632,3cyclictest41-21ksoftirqd/321:55:283
14086993632,2cyclictest41-21ksoftirqd/322:10:173
14086993632,2cyclictest41-21ksoftirqd/320:15:003
14086993632,2cyclictest41-21ksoftirqd/319:25:003
14086993631,3cyclictest41-21ksoftirqd/323:40:003
14086993631,3cyclictest41-21ksoftirqd/320:10:003
14086993630,4cyclictest41-21ksoftirqd/322:41:423
14086993630,4cyclictest41-21ksoftirqd/322:02:193
14086993630,4cyclictest41-21ksoftirqd/321:12:563
14086993630,3cyclictest41-21ksoftirqd/323:25:143
14085993631,3cyclictest33-21ksoftirqd/222:40:032
14085993630,4cyclictest33-21ksoftirqd/220:33:272
14085993629,4cyclictest33-21ksoftirqd/222:12:592
1408599362,31cyclictest2898-21grep19:50:232
14085993612,21cyclictest3450-21sed23:10:272
14085993611,22cyclictest11914-21wc22:25:012
14084993630,4cyclictest25-21ksoftirqd/120:09:391
14084993630,4cyclictest25-21ksoftirqd/119:12:061
1408399367,3cyclictest9-21ksoftirqd/021:20:270
1408399365,2cyclictest9-21ksoftirqd/020:10:260
1408399364,2cyclictest9-21ksoftirqd/020:35:140
1408399364,2cyclictest9-21ksoftirqd/020:35:140
1408399363,3cyclictest9-21ksoftirqd/021:50:250
1408399363,3cyclictest9-21ksoftirqd/021:50:250
14083993630,4cyclictest9-21ksoftirqd/023:21:150
14083993630,4cyclictest9-21ksoftirqd/019:49:240
1408399362,4cyclictest9-21ksoftirqd/021:35:150
1408399362,3cyclictest9-21ksoftirqd/021:45:260
1408399361,5cyclictest9-21ksoftirqd/022:10:160
1408399361,3cyclictest121rcu_preempt21:55:140
134991360,0ptp4l401ktimersoftd/320:00:323
130891360,1getstats0-21swapper/319:30:003
14086993531,3cyclictest41-21ksoftirqd/319:35:213
14086993530,3cyclictest41-21ksoftirqd/323:20:203
14086993530,3cyclictest41-21ksoftirqd/320:45:143
14086993530,3cyclictest41-21ksoftirqd/300:00:003
14086993529,4cyclictest41-21ksoftirqd/323:12:103
14086993529,4cyclictest41-21ksoftirqd/321:27:363
14086993529,4cyclictest41-21ksoftirqd/319:16:543
14086993529,3cyclictest41-21ksoftirqd/322:55:013
14085993530,3cyclictest33-21ksoftirqd/223:46:112
14085993529,4cyclictest33-21ksoftirqd/222:03:062
14085993529,4cyclictest33-21ksoftirqd/221:05:452
14085993529,4cyclictest33-21ksoftirqd/219:17:252
14085993529,4cyclictest33-21ksoftirqd/200:36:062
14085993511,22cyclictest12295-21expr22:25:152
1408599350,3cyclictest26656-1kworker/2:0H22:50:002
14084993530,3cyclictest25-21ksoftirqd/120:30:111
14084993530,3cyclictest25-21ksoftirqd/100:28:511
14084993530,3cyclictest25-21ksoftirqd/100:08:521
14084993529,4cyclictest25-21ksoftirqd/122:49:391
14084993529,4cyclictest25-21ksoftirqd/121:56:151
14084993529,4cyclictest25-21ksoftirqd/121:23:411
14084993529,4cyclictest25-21ksoftirqd/120:44:301
14084993529,4cyclictest25-21ksoftirqd/120:12:481
14084993529,4cyclictest25-21ksoftirqd/119:47:491
14084993529,4cyclictest25-21ksoftirqd/119:38:221
14084993529,4cyclictest25-21ksoftirqd/119:15:071
1408399358,3cyclictest9-21ksoftirqd/022:15:250
1408399354,2cyclictest121rcu_preempt19:20:170
14083993531,3cyclictest9-21ksoftirqd/021:10:000
14083993530,3cyclictest9-21ksoftirqd/021:10:160
14083993529,3cyclictest9-21ksoftirqd/019:25:140
1408399352,3cyclictest9-21ksoftirqd/020:50:240
1408399352,2cyclictest9-21ksoftirqd/000:20:190
1408399350,3cyclictest121rcu_preempt22:05:210
1408399350,2cyclictest121rcu_preempt20:55:190
14086993429,3cyclictest41-21ksoftirqd/323:30:113
14086993429,3cyclictest41-21ksoftirqd/321:50:003
14086993429,3cyclictest41-21ksoftirqd/300:35:163
14086993428,4cyclictest41-21ksoftirqd/323:53:273
14086993428,4cyclictest41-21ksoftirqd/322:28:333
14086993428,3cyclictest41-21ksoftirqd/322:31:443
14086993428,3cyclictest41-21ksoftirqd/320:25:193
14085993428,4cyclictest33-21ksoftirqd/223:03:282
14085993428,4cyclictest33-21ksoftirqd/221:32:132
14085993428,4cyclictest33-21ksoftirqd/221:18:002
14085993428,4cyclictest33-21ksoftirqd/220:49:402
14085993428,4cyclictest33-21ksoftirqd/219:40:442
14085993413,19cyclictest10661-21mailstats20:05:262
14084993429,3cyclictest25-21ksoftirqd/121:14:541
14084993429,3cyclictest25-21ksoftirqd/119:42:551
14084993428,4cyclictest25-21ksoftirqd/123:32:301
14084993428,4cyclictest25-21ksoftirqd/123:11:361
14084993428,4cyclictest25-21ksoftirqd/122:36:271
14084993428,4cyclictest25-21ksoftirqd/122:34:411
14084993428,4cyclictest25-21ksoftirqd/121:51:571
14084993428,4cyclictest25-21ksoftirqd/121:51:571
14084993428,4cyclictest25-21ksoftirqd/121:36:571
14084993428,4cyclictest25-21ksoftirqd/121:15:131
1408399345,7cyclictest9-21ksoftirqd/023:50:170
1408399345,7cyclictest9-21ksoftirqd/023:05:210
1408399345,2cyclictest121rcu_preempt19:30:250
1408399344,3cyclictest9-21ksoftirqd/021:40:170
14083993430,2cyclictest9-21ksoftirqd/021:30:000
14083993429,3cyclictest9-21ksoftirqd/022:40:140
14083993428,3cyclictest9-21ksoftirqd/023:30:130
1408699334,7cyclictest41-21ksoftirqd/319:55:183
14086993328,3cyclictest41-21ksoftirqd/319:54:593
14086993327,3cyclictest41-21ksoftirqd/322:20:013
14086993327,3cyclictest41-21ksoftirqd/321:15:303
1408599339,3cyclictest26810-21/usr/sbin/munin21:50:292
1408599339,3cyclictest26810-21/usr/sbin/munin21:50:292
14085993328,3cyclictest33-21ksoftirqd/220:27:302
14085993327,4cyclictest33-21ksoftirqd/222:53:242
14085993327,4cyclictest33-21ksoftirqd/221:11:472
14085993327,4cyclictest33-21ksoftirqd/220:12:212
14085993313,17cyclictest4199-21acpi19:55:102
14085993313,17cyclictest28352-21sshd19:36:252
1408599331,29cyclictest4548-21latency_hist00:20:012
14085993310,20cyclictest14605-21cpuspeed_turbos22:30:142
1408599330,31cyclictest0-21swapper/223:45:002
14084993328,3cyclictest25-21ksoftirqd/121:31:261
14084993328,3cyclictest25-21ksoftirqd/120:21:361
14084993327,4cyclictest25-21ksoftirqd/123:53:171
14084993327,4cyclictest25-21ksoftirqd/122:29:521
14084993327,4cyclictest25-21ksoftirqd/122:10:111
14084993327,4cyclictest25-21ksoftirqd/120:36:551
14084993327,4cyclictest25-21ksoftirqd/120:36:551
14084993327,4cyclictest25-21ksoftirqd/120:00:391
14084993327,4cyclictest25-21ksoftirqd/119:26:391
14084993327,4cyclictest25-21ksoftirqd/100:10:581
14084993327,4cyclictest25-21ksoftirqd/100:10:581
14083993329,2cyclictest9-21ksoftirqd/023:45:150
14083993328,3cyclictest9-21ksoftirqd/019:40:250
1408399331,3cyclictest121rcu_preempt22:55:240
1408399330,2cyclictest121rcu_preempt22:35:000
14086993227,3cyclictest41-21ksoftirqd/321:38:513
14086993227,3cyclictest41-21ksoftirqd/321:21:433
14086993227,3cyclictest41-21ksoftirqd/319:45:233
14086993226,3cyclictest41-21ksoftirqd/300:20:003
1408599327,22cyclictest13551-21unixbench_multi23:30:262
14085993227,3cyclictest33-21ksoftirqd/200:01:512
14085993226,4cyclictest33-21ksoftirqd/223:57:392
14085993226,4cyclictest33-21ksoftirqd/223:27:232
14085993226,4cyclictest33-21ksoftirqd/220:00:502
1408599321,5cyclictest31638-21sshd20:53:152
14084993228,3cyclictest25-21ksoftirqd/122:02:561
14084993227,3cyclictest25-21ksoftirqd/122:51:071
14084993227,3cyclictest25-21ksoftirqd/119:53:211
14084993226,4cyclictest25-21ksoftirqd/122:05:421
14084993226,4cyclictest25-21ksoftirqd/100:22:541
14083993228,2cyclictest9-21ksoftirqd/022:50:000
14083993227,3cyclictest9-21ksoftirqd/021:30:140
130891320,1getstats0-21swapper/322:35:013
14086993125,3cyclictest41-21ksoftirqd/319:10:163
14085993126,3cyclictest33-21ksoftirqd/221:38:082
14085993126,3cyclictest33-21ksoftirqd/221:02:002
14085993126,3cyclictest33-21ksoftirqd/219:46:562
14085993126,3cyclictest33-21ksoftirqd/219:33:482
14085993125,4cyclictest33-21ksoftirqd/221:58:482
14085993125,4cyclictest33-21ksoftirqd/221:45:532
14085993125,4cyclictest33-21ksoftirqd/219:20:502
1408599311,7cyclictest227-21systemd-journal23:20:132
1408599311,11cyclictest19167-21latency_hist22:40:012
14085993110,19cyclictest1280-21runrttasks19:14:462
14084993127,3cyclictest25-21ksoftirqd/121:01:461
14084993126,3cyclictest25-21ksoftirqd/122:56:441
14084993125,4cyclictest25-21ksoftirqd/121:08:091
14084993125,4cyclictest25-21ksoftirqd/120:59:261
14084993125,4cyclictest25-21ksoftirqd/120:47:141
14083993127,3cyclictest9-21ksoftirqd/019:50:280
1408599307,3cyclictest26411-21taskset20:40:092
1408599306,3cyclictest4932-21sort23:15:192
14085993025,3cyclictest33-21ksoftirqd/220:55:402
14085993025,3cyclictest33-21ksoftirqd/200:11:162
14085993025,3cyclictest33-21ksoftirqd/200:11:162
14084993025,3cyclictest25-21ksoftirqd/123:57:051
14084993025,3cyclictest25-21ksoftirqd/122:21:411
14084993025,3cyclictest25-21ksoftirqd/100:18:281
14084993024,4cyclictest25-21ksoftirqd/123:06:231
14084993024,4cyclictest25-21ksoftirqd/121:48:071
1408499300,28cyclictest0-21swapper/122:15:471
14086992923,3cyclictest41-21ksoftirqd/300:20:143
1408599296,4cyclictest458-21avahi-daemon23:00:012
1408599296,4cyclictest0-21swapper/220:35:272
1408599296,4cyclictest0-21swapper/220:35:272
1408599295,4cyclictest14396-21cpuspeed_turbos23:35:142
1408599291,6cyclictest0-21swapper/200:25:272
14085992910,17cyclictest1280-21runrttasks21:42:152
14085992910,17cyclictest1280-21runrttasks21:26:542
14084992924,3cyclictest25-21ksoftirqd/123:28:161
14084992924,3cyclictest25-21ksoftirqd/120:52:281
14084992924,3cyclictest25-21ksoftirqd/119:22:201
1408599285,3cyclictest22282-21irqrtprio19:25:192
1408599284,3cyclictest12796-21irqrtprio21:20:182
14084992823,3cyclictest25-21ksoftirqd/123:44:271
14084992823,3cyclictest25-21ksoftirqd/121:40:501
14084992823,3cyclictest25-21ksoftirqd/100:31:131
14084992822,4cyclictest25-21ksoftirqd/120:17:421
1408599276,3cyclictest21650-21cpu23:50:132
14085992722,3cyclictest33-21ksoftirqd/220:15:452
14084992721,4cyclictest25-21ksoftirqd/123:19:301
14084992721,3cyclictest21238-21cron20:30:001
14084992620,4cyclictest25-21ksoftirqd/100:00:351
14084992520,3cyclictest25-21ksoftirqd/100:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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