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2026-04-20 - 05:00
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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 Mon Apr 20, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37882217151,22sleep00-21swapper/019:06:110
40452205172,22sleep20-21swapper/219:09:272
40762204169,23sleep30-21swapper/319:09:523
39152202168,22sleep10-21swapper/119:07:451
3128221520,6sleep1438499cyclictest20:05:181
139391810,1ptp4l391rcuc/300:35:253
139391560,1ptp4l391rcuc/323:15:313
4312520,2sleep30-21swapper/320:10:013
139391500,1ptp4l391rcuc/322:34:163
438599491,45cyclictest18590-21kworker/2:119:55:232
409124937,6sleep00-21swapper/019:10:010
164482490,2sleep10-21swapper/119:35:001
4385994516,27cyclictest0-21swapper/222:40:332
4384994540,3cyclictest25726-21sh19:55:001
438599440,43cyclictest0-21swapper/223:00:232
438599440,43cyclictest0-21swapper/223:00:232
139391440,0ptp4l401ktimersoftd/319:16:153
139391430,0ptp4l401ktimersoftd/323:33:403
139391430,0ptp4l401ktimersoftd/322:23:283
139391430,0ptp4l401ktimersoftd/321:53:313
438699421,2cyclictest0-21swapper/323:40:533
139391420,1ptp4l401ktimersoftd/321:21:183
139391420,0ptp4l401ktimersoftd/321:42:523
139391420,0ptp4l401ktimersoftd/321:04:413
139391420,0ptp4l401ktimersoftd/300:12:043
57898410,8rtkit-daemon0-21swapper/021:13:550
139391410,0ptp4l401ktimersoftd/323:26:433
57898390,3rtkit-daemon32463-21users20:05:270
57898390,2rtkit-daemon0-21swapper/121:57:011
4385993911,26cyclictest0-21swapper/221:20:232
438599389,27cyclictest0-21swapper/221:05:332
4385993810,26cyclictest0-21swapper/221:45:332
438599380,2cyclictest14198-21apt-get00:00:122
4383993831,4cyclictest9-21ksoftirqd/020:25:260
4386993731,4cyclictest41-21ksoftirqd/321:36:133
4386993716,18cyclictest4315-21apt-key23:40:013
438699371,34cyclictest0-21swapper/300:25:533
438599377,28cyclictest0-21swapper/219:14:432
4385993731,4cyclictest33-21ksoftirqd/223:46:462
4384993731,4cyclictest25-21ksoftirqd/123:03:491
4384993731,4cyclictest25-21ksoftirqd/123:03:481
4384993730,4cyclictest25-21ksoftirqd/120:20:051
57898360,5rtkit-daemon0-21swapper/021:17:560
57898360,5rtkit-daemon0-21swapper/021:17:560
4386993631,3cyclictest41-21ksoftirqd/320:55:003
4385993631,3cyclictest33-21ksoftirqd/220:45:112
4385993630,4cyclictest33-21ksoftirqd/200:33:322
4384993631,3cyclictest25-21ksoftirqd/119:37:381
4384993630,4cyclictest25-21ksoftirqd/123:08:101
4384993630,4cyclictest25-21ksoftirqd/122:55:381
4384993630,4cyclictest25-21ksoftirqd/122:31:031
4384993630,4cyclictest25-21ksoftirqd/121:31:541
4384993630,4cyclictest25-21ksoftirqd/121:25:561
4384993630,4cyclictest1-21systemd00:04:541
4384993629,4cyclictest25-21ksoftirqd/122:15:471
4384993629,4cyclictest25-21ksoftirqd/120:47:011
4383993630,3cyclictest14770-21irqrtprio19:30:180
57898350,2rtkit-daemon0-21swapper/019:43:440
4386993529,4cyclictest41-21ksoftirqd/322:41:443
4386993513,19cyclictest5897-21/usr/sbin/munin22:35:273
4386993513,19cyclictest14183-21/usr/sbin/munin00:00:273
4385993513,20cyclictest21350-21kworker/2:023:40:132
4384993529,4cyclictest25-21ksoftirqd/123:33:211
4384993529,4cyclictest25-21ksoftirqd/122:12:411
4384993529,4cyclictest25-21ksoftirqd/121:48:271
4384993529,4cyclictest25-21ksoftirqd/120:26:191
4384993529,3cyclictest25-21ksoftirqd/119:45:111
4383993531,2cyclictest9-21ksoftirqd/000:00:010
4383993530,3cyclictest9-21ksoftirqd/020:00:120
57898340,3rtkit-daemon0-21swapper/020:34:170
4386993429,3cyclictest41-21ksoftirqd/321:55:123
4386993428,4cyclictest41-21ksoftirqd/320:49:443
4386993413,19cyclictest1833-21apache220:16:293
4386993413,18cyclictest23227-21interrupts20:55:183
4386993410,21cyclictest11924-21diskstats19:25:163
438699340,20cyclictest0-21swapper/321:30:273
4385993428,4cyclictest33-21ksoftirqd/223:52:442
4385993428,4cyclictest33-21ksoftirqd/222:18:492
4385993428,4cyclictest33-21ksoftirqd/221:33:232
4385993428,4cyclictest33-21ksoftirqd/220:58:172
4385993428,4cyclictest33-21ksoftirqd/220:54:282
4385993415,3cyclictest22516-21acpi23:10:112
438599341,17cyclictest14900-21cat20:40:002
4384993429,3cyclictest25-21ksoftirqd/122:45:101
4384993429,3cyclictest25-21ksoftirqd/100:33:221
4384993428,4cyclictest25-21ksoftirqd/123:39:581
4384993428,4cyclictest25-21ksoftirqd/120:44:331
4384993428,4cyclictest25-21ksoftirqd/120:33:451
4384993428,4cyclictest25-21ksoftirqd/119:55:541
4384993428,4cyclictest25-21ksoftirqd/119:26:181
4384993428,4cyclictest25-21ksoftirqd/119:13:221
4383993429,3cyclictest9-21ksoftirqd/000:05:110
4383993428,4cyclictest9-21ksoftirqd/023:53:100
4383993428,4cyclictest9-21ksoftirqd/023:07:370
4383993427,5cyclictest9-21ksoftirqd/023:12:380
4386993327,4cyclictest41-21ksoftirqd/319:13:243
4386993327,3cyclictest11317-21irqrtprio22:45:173
4386993326,4cyclictest41-21ksoftirqd/321:05:443
4386993312,18cyclictest15392-21/usr/sbin/munin22:55:263
4386993311,19cyclictest29644-21ptp4l20:00:243
4386993311,19cyclictest1703-21sh22:25:193
4386993310,20cyclictest9241-21grep20:25:243
4385993328,3cyclictest33-21ksoftirqd/200:21:082
4385993327,4cyclictest33-21ksoftirqd/222:33:372
4385993327,4cyclictest33-21ksoftirqd/222:28:422
4385993327,4cyclictest33-21ksoftirqd/219:52:392
4385993327,4cyclictest33-21ksoftirqd/219:34:212
4385993327,4cyclictest33-21ksoftirqd/200:12:302
4384993328,3cyclictest25-21ksoftirqd/121:41:561
4384993328,3cyclictest25-21ksoftirqd/120:17:231
4384993327,4cyclictest25-21ksoftirqd/123:55:161
4384993327,4cyclictest25-21ksoftirqd/123:42:441
4384993327,4cyclictest25-21ksoftirqd/123:22:061
4384993327,4cyclictest25-21ksoftirqd/123:18:211
4384993327,4cyclictest25-21ksoftirqd/123:12:111
4384993327,4cyclictest25-21ksoftirqd/120:10:381
4384993327,4cyclictest25-21ksoftirqd/119:21:441
4383993329,2cyclictest9-21ksoftirqd/020:50:000
4383993328,3cyclictest9-21ksoftirqd/020:45:000
4383993328,3cyclictest9-21ksoftirqd/020:15:120
4383993327,4cyclictest9-21ksoftirqd/022:29:590
4383993327,4cyclictest9-21ksoftirqd/021:25:030
4383993327,4cyclictest9-21ksoftirqd/021:22:060
4383993327,4cyclictest9-21ksoftirqd/019:57:550
4383993326,5cyclictest9-21ksoftirqd/021:09:180
4386993226,4cyclictest41-21ksoftirqd/323:46:353
4386993226,4cyclictest41-21ksoftirqd/320:13:053
4386993225,4cyclictest41-21ksoftirqd/319:31:293
4386993212,18cyclictest25955-21/usr/sbin/munin19:55:193
4386993210,20cyclictest1342-21sed21:15:243
4386993210,20cyclictest1342-21sed21:15:243
4386993210,19cyclictest15660-21phc2sys21:45:233
4386993210,19cyclictest12402-21cat23:55:173
4386993210,19cyclictest11167-21uptime23:50:273
438699320,29cyclictest22529-21ls00:15:203
4385993227,3cyclictest33-21ksoftirqd/223:30:002
4385993227,3cyclictest33-21ksoftirqd/221:50:482
4385993226,4cyclictest33-21ksoftirqd/221:29:302
4385993226,4cyclictest33-21ksoftirqd/220:33:182
4385993226,4cyclictest33-21ksoftirqd/220:02:412
4385993225,5cyclictest33-21ksoftirqd/219:38:302
4384993228,3cyclictest25-21ksoftirqd/121:35:081
4384993228,3cyclictest25-21ksoftirqd/121:10:351
4384993227,3cyclictest25-21ksoftirqd/120:51:251
4384993226,4cyclictest25-21ksoftirqd/122:29:471
4384993226,4cyclictest25-21ksoftirqd/122:00:501
4384993226,4cyclictest25-21ksoftirqd/121:20:391
4384993226,4cyclictest25-21ksoftirqd/121:18:421
4384993226,4cyclictest25-21ksoftirqd/121:18:421
4384993226,4cyclictest25-21ksoftirqd/119:41:021
4384993226,4cyclictest25-21ksoftirqd/100:22:351
4384993226,4cyclictest25-21ksoftirqd/100:14:131
4383993228,3cyclictest9-21ksoftirqd/000:26:080
4383993226,4cyclictest9-21ksoftirqd/023:04:560
4383993226,4cyclictest9-21ksoftirqd/023:04:560
4383993226,4cyclictest9-21ksoftirqd/022:03:260
4383993226,4cyclictest9-21ksoftirqd/021:36:340
4383993225,5cyclictest9-21ksoftirqd/020:52:380
4383993225,4cyclictest9-21ksoftirqd/019:39:320
57898310,1rtkit-daemon0-21swapper/022:22:090
438699318,20cyclictest28858-21expr22:15:133
438699317,21cyclictest23814-21ls19:50:143
438699317,21cyclictest22287-21irqrtprio22:00:183
4386993126,3cyclictest41-21ksoftirqd/323:04:543
4386993126,3cyclictest41-21ksoftirqd/323:04:533
4386993126,3cyclictest41-21ksoftirqd/319:45:533
4386993125,4cyclictest41-21ksoftirqd/320:23:443
438699311,24cyclictest28640-21apt-get00:30:133
4386993110,18cyclictest10498-21rt-features19:20:243
4385993126,3cyclictest33-21ksoftirqd/222:52:282
4385993126,3cyclictest33-21ksoftirqd/222:04:162
4385993125,4cyclictest33-21ksoftirqd/223:31:182
4385993125,4cyclictest33-21ksoftirqd/222:05:132
4385993125,4cyclictest33-21ksoftirqd/221:15:342
4385993125,4cyclictest33-21ksoftirqd/221:15:342
4385993125,4cyclictest33-21ksoftirqd/220:07:142
4384993126,3cyclictest25-21ksoftirqd/100:27:081
4384993125,4cyclictest25-21ksoftirqd/100:37:081
4383993126,3cyclictest9-21ksoftirqd/022:39:210
4383993126,3cyclictest9-21ksoftirqd/022:07:270
4383993125,4cyclictest9-21ksoftirqd/022:43:540
4383993125,4cyclictest9-21ksoftirqd/019:21:390
4383993125,4cyclictest9-21ksoftirqd/000:20:130
4383993125,4cyclictest9-21ksoftirqd/000:19:540
4383993125,4cyclictest9-21ksoftirqd/000:13:480
4383993125,3cyclictest9-21ksoftirqd/021:50:060
4383993124,5cyclictest9-21ksoftirqd/022:47:350
4383993124,4cyclictest9-21ksoftirqd/023:50:010
4383993124,4cyclictest9-21ksoftirqd/019:25:120
438699309,19cyclictest27268-21/usr/sbin/munin23:20:253
438699307,20cyclictest13564-21sed20:35:203
438699307,19cyclictest20438-21date19:40:263
4386993024,4cyclictest41-21ksoftirqd/322:53:243
4386993010,17cyclictest15350-21df_abs20:40:153
4385993025,3cyclictest33-21ksoftirqd/223:57:142
4385993025,3cyclictest33-21ksoftirqd/200:17:102
4385993024,4cyclictest33-21ksoftirqd/221:42:142
4385993024,4cyclictest33-21ksoftirqd/221:04:512
438599302,26cyclictest12102-21kworker/2:221:55:232
438599301,28cyclictest12102-21kworker/2:221:38:452
438599301,27cyclictest18590-21kworker/2:120:29:332
4384993025,3cyclictest25-21ksoftirqd/121:00:571
4384993024,4cyclictest25-21ksoftirqd/122:41:461
4384993024,4cyclictest25-21ksoftirqd/120:59:251
4383993024,4cyclictest9-21ksoftirqd/022:17:000
4383993024,4cyclictest9-21ksoftirqd/021:57:240
4383993023,4cyclictest9-21ksoftirqd/022:14:090
438699297,19cyclictest5160-21entropy21:25:163
438699293,21cyclictest22526-21apt-get23:10:123
4385992925,3cyclictest33-21ksoftirqd/219:46:532
4385992924,4cyclictest33-21ksoftirqd/200:08:152
4385992924,3cyclictest33-21ksoftirqd/222:13:172
4385992924,3cyclictest33-21ksoftirqd/220:15:142
4385992924,3cyclictest33-21ksoftirqd/219:40:352
4385992923,4cyclictest33-21ksoftirqd/221:13:142
438599292,25cyclictest12102-21kworker/2:220:43:132
4384992924,3cyclictest25-21ksoftirqd/121:53:011
4384992924,3cyclictest25-21ksoftirqd/119:16:221
4384992923,4cyclictest25-21ksoftirqd/123:54:311
4384992923,4cyclictest25-21ksoftirqd/120:38:061
4383992924,3cyclictest9-21ksoftirqd/021:04:210
4383992924,3cyclictest9-21ksoftirqd/019:50:120
4383992923,4cyclictest9-21ksoftirqd/023:32:560
4383992923,4cyclictest9-21ksoftirqd/023:27:230
4383992923,4cyclictest9-21ksoftirqd/020:36:130
4383992923,4cyclictest9-21ksoftirqd/020:22:380
4383992923,4cyclictest9-21ksoftirqd/019:15:510
438699289,17cyclictest1317-21runrttasks00:20:103
438699281,24cyclictest29711-21dpkg21:10:023
438699281,24cyclictest24519-21/usr/sbin/munin22:05:163
438699281,24cyclictest17191-21/usr/sbin/munin00:05:193
438699281,23cyclictest10307-21apt-get20:30:133
4385992823,3cyclictest33-21ksoftirqd/200:36:342
438599282,25cyclictest31825-21kworker/2:122:48:012
4385992822,4cyclictest33-21ksoftirqd/223:37:072
4385992822,4cyclictest33-21ksoftirqd/222:39:392
4385992822,4cyclictest33-21ksoftirqd/220:12:562
4385992822,4cyclictest33-21ksoftirqd/200:25:092
4384992823,3cyclictest25-21ksoftirqd/122:05:581
4384992822,4cyclictest25-21ksoftirqd/123:25:391
4384992822,4cyclictest25-21ksoftirqd/122:50:451
4383992823,3cyclictest9-21ksoftirqd/023:37:290
4383992823,3cyclictest9-21ksoftirqd/022:52:230
4383992823,3cyclictest9-21ksoftirqd/000:00:120
4383992822,4cyclictest9-21ksoftirqd/021:41:160
4383992822,4cyclictest9-21ksoftirqd/021:31:510
4383992822,4cyclictest9-21ksoftirqd/000:33:460
4383992822,3cyclictest9-21ksoftirqd/022:30:120
4386992722,3cyclictest41-21ksoftirqd/322:12:533
438699272,22cyclictest20146-21/usr/sbin/munin23:05:203
438699270,24cyclictest17723-21ps19:35:233
438599276,20cyclictest21350-21kworker/2:023:15:532
4385992722,3cyclictest33-21ksoftirqd/223:20:282
4385992722,3cyclictest33-21ksoftirqd/220:23:072
4385992721,4cyclictest33-21ksoftirqd/219:21:182
438599271,25cyclictest17798-21kworker/2:223:07:492
4384992722,3cyclictest25-21ksoftirqd/100:15:081
4384992721,4cyclictest25-21ksoftirqd/100:09:481
4383992722,3cyclictest9-21ksoftirqd/023:40:130
4383992722,3cyclictest9-21ksoftirqd/023:21:140
4383992722,3cyclictest9-21ksoftirqd/020:56:360
4383992722,3cyclictest9-21ksoftirqd/020:11:260
4385992621,3cyclictest33-21ksoftirqd/222:24:462
4384992621,3cyclictest25-21ksoftirqd/120:01:491
4383992621,3cyclictest9-21ksoftirqd/021:45:520
4383992621,3cyclictest9-21ksoftirqd/019:46:140
4383992620,4cyclictest9-21ksoftirqd/022:56:170
4385992520,3cyclictest33-21ksoftirqd/219:25:582
4385992520,3cyclictest33-21ksoftirqd/219:18:472
4385992519,4cyclictest33-21ksoftirqd/222:57:282
4384992520,3cyclictest25-21ksoftirqd/122:21:281
4384992519,4cyclictest25-21ksoftirqd/121:07:351
4384992419,3cyclictest25-21ksoftirqd/123:46:061
4383992419,3cyclictest9-21ksoftirqd/023:18:140
4383992217,3cyclictest9-21ksoftirqd/000:38:460
4384991914,3cyclictest6388-21fschecks_time22:35:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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