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2026-01-05 - 03:53
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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 Jan 05, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4812203168,23sleep30-21swapper/319:06:063
7832201167,22sleep00-21swapper/019:09:450
5942201167,23sleep10-21swapper/119:07:251
6962200167,22sleep20-21swapper/219:08:392
110699639,16cyclictest24643-21awk19:55:243
110699629,12cyclictest19922-21sed23:00:273
1106996210,12cyclictest5071-21cut19:15:263
1106996110,11cyclictest18210-21latency_hist23:00:003
1106996010,15cyclictest16010-21/usr/sbin/munin19:40:153
110699559,16cyclictest30830-21/usr/sbin/munin22:20:213
1106995510,11cyclictest29073-21/usr/sbin/munin21:10:163
1103995146,2cyclictest9-21ksoftirqd/020:00:000
110699477,14cyclictest11803-21ps21:40:193
110699458,7cyclictest29483-21meminfo23:20:213
110699447,11cyclictest0-21swapper/323:55:213
138491430,0ptp4l401ktimersoftd/322:29:453
1105994234,5cyclictest13108-21cron22:50:012
138491410,0ptp4l401ktimersoftd/300:31:583
1104994136,3cyclictest25-21ksoftirqd/120:40:001
1104994136,3cyclictest25-21ksoftirqd/119:55:001
1104994035,3cyclictest25-21ksoftirqd/122:40:001
110699398,7cyclictest9696-21memory21:35:223
110599390,37cyclictest0-21swapper/220:09:132
1104993934,3cyclictest25-21ksoftirqd/121:40:191
1104993927,3cyclictest25-21ksoftirqd/120:10:301
110499390,2cyclictest121rcu_preempt23:05:001
1104993833,3cyclictest25-21ksoftirqd/120:55:191
1104993832,3cyclictest25-21ksoftirqd/100:05:011
1106993731,4cyclictest41-21ksoftirqd/300:08:383
1105993726,9cyclictest33-21ksoftirqd/221:50:282
1104993732,3cyclictest25-21ksoftirqd/100:10:001
1104993732,3cyclictest10609-21cron20:35:011
1104993731,4cyclictest25-21ksoftirqd/123:16:571
1104993731,3cyclictest25-21ksoftirqd/121:50:141
1104993731,3cyclictest25-21ksoftirqd/119:15:001
1103993733,3cyclictest9-21ksoftirqd/021:00:000
1103993732,3cyclictest9-21ksoftirqd/021:40:000
1103993732,3cyclictest9-21ksoftirqd/020:50:000
1103993731,3cyclictest9-21ksoftirqd/023:09:590
1103993731,3cyclictest9-21ksoftirqd/022:05:180
1103993731,3cyclictest18040-21cron00:04:590
110699369,16cyclictest1319-21snmpd23:40:173
110699364,10cyclictest0-21swapper/319:35:243
1106993630,4cyclictest41-21ksoftirqd/323:50:413
1106993630,4cyclictest41-21ksoftirqd/320:45:093
1106993629,5cyclictest41-21ksoftirqd/322:18:383
1106993610,17cyclictest20921-21/usr/sbin/munin20:55:253
1105993631,3cyclictest33-21ksoftirqd/200:20:012
1105993630,4cyclictest33-21ksoftirqd/222:42:322
1105993630,4cyclictest33-21ksoftirqd/222:23:552
1105993630,3cyclictest33-21ksoftirqd/221:17:002
1105993629,4cyclictest33-21ksoftirqd/200:35:582
1105993629,4cyclictest33-21ksoftirqd/200:21:592
1104993632,2cyclictest25-21ksoftirqd/123:55:011
1104993631,3cyclictest25-21ksoftirqd/121:30:191
1104993631,3cyclictest25-21ksoftirqd/121:25:131
1104993631,3cyclictest25-21ksoftirqd/119:30:141
1104993631,3cyclictest25-21ksoftirqd/119:25:001
1104993630,4cyclictest25-21ksoftirqd/122:30:131
1104993630,4cyclictest25-21ksoftirqd/121:01:101
1104993630,4cyclictest25-21ksoftirqd/120:25:031
1104993630,4cyclictest25-21ksoftirqd/119:36:091
1104993630,4cyclictest25-21ksoftirqd/100:33:551
1104993630,3cyclictest25-21ksoftirqd/122:05:281
1104993630,3cyclictest25-21ksoftirqd/121:10:191
1104993630,3cyclictest25-21ksoftirqd/100:20:001
1103993631,3cyclictest9-21ksoftirqd/021:30:190
1103993631,3cyclictest9-21ksoftirqd/021:05:010
1103993629,4cyclictest9-21ksoftirqd/019:38:580
110699359,10cyclictest21705-21ps22:00:193
1106993530,3cyclictest41-21ksoftirqd/319:21:433
1106993529,4cyclictest41-21ksoftirqd/322:36:033
1105993529,3cyclictest33-21ksoftirqd/220:50:002
1104993531,3cyclictest25-21ksoftirqd/120:55:001
1104993531,2cyclictest25-21ksoftirqd/119:45:111
1104993530,3cyclictest25-21ksoftirqd/122:55:171
1104993530,3cyclictest25-21ksoftirqd/122:20:191
1104993530,3cyclictest25-21ksoftirqd/121:56:421
1104993530,2cyclictest25-21ksoftirqd/123:35:121
1104993529,4cyclictest25-21ksoftirqd/123:27:431
1104993529,3cyclictest25-21ksoftirqd/120:45:121
1103993530,3cyclictest9-21ksoftirqd/021:20:200
1103993530,3cyclictest9-21ksoftirqd/020:25:190
1103993529,4cyclictest9-21ksoftirqd/023:17:400
1103993529,4cyclictest9-21ksoftirqd/022:35:560
1103993529,3cyclictest9-21ksoftirqd/020:15:230
1103993529,3cyclictest9-21ksoftirqd/020:10:000
1103993528,4cyclictest9-21ksoftirqd/000:21:310
1103993528,4cyclictest9-21ksoftirqd/000:20:010
50798340,8rtkit-daemon0-21swapper/121:45:561
1106993428,4cyclictest41-21ksoftirqd/323:16:233
1106993428,4cyclictest41-21ksoftirqd/322:30:383
1106993428,4cyclictest41-21ksoftirqd/321:45:293
1106993428,4cyclictest41-21ksoftirqd/321:00:523
1106993428,4cyclictest41-21ksoftirqd/300:04:013
1105993429,3cyclictest33-21ksoftirqd/223:29:222
1105993429,3cyclictest33-21ksoftirqd/220:35:112
1105993429,3cyclictest33-21ksoftirqd/220:17:402
1105993429,3cyclictest33-21ksoftirqd/219:21:322
1105993428,4cyclictest33-21ksoftirqd/223:51:432
1105993428,4cyclictest33-21ksoftirqd/223:41:172
1105993428,4cyclictest33-21ksoftirqd/221:22:412
1105993428,4cyclictest33-21ksoftirqd/220:42:252
1105993428,4cyclictest33-21ksoftirqd/200:27:472
110599340,33cyclictest0-21swapper/222:01:532
1104993430,3cyclictest25-21ksoftirqd/100:20:201
1104993429,3cyclictest25-21ksoftirqd/123:45:221
1104993429,3cyclictest25-21ksoftirqd/122:50:171
1104993429,3cyclictest25-21ksoftirqd/100:25:191
1104993429,2cyclictest25-21ksoftirqd/120:00:001
1104993428,4cyclictest25-21ksoftirqd/121:22:161
1104993428,4cyclictest25-21ksoftirqd/120:45:001
1104993428,4cyclictest25-21ksoftirqd/120:24:271
1104993428,3cyclictest25-21ksoftirqd/121:05:181
1104993427,5cyclictest25-21ksoftirqd/123:41:311
110499340,8cyclictest121rcu_preempt00:40:011
1103993430,3cyclictest9-21ksoftirqd/023:00:190
1103993429,3cyclictest9-21ksoftirqd/022:30:190
1103993429,3cyclictest9-21ksoftirqd/022:10:210
1103993429,3cyclictest9-21ksoftirqd/019:40:210
1103993428,4cyclictest9-21ksoftirqd/022:25:490
1103993428,4cyclictest9-21ksoftirqd/021:50:340
1103993428,4cyclictest9-21ksoftirqd/021:49:550
1103993428,4cyclictest9-21ksoftirqd/019:23:200
1103993428,4cyclictest9-21ksoftirqd/000:28:410
1103993428,3cyclictest9-21ksoftirqd/022:59:590
1103993428,3cyclictest9-21ksoftirqd/021:45:000
1103993428,3cyclictest9-21ksoftirqd/020:10:150
1103993427,5cyclictest9-21ksoftirqd/023:46:450
110699335,10cyclictest0-21swapper/323:12:563
1106993327,4cyclictest41-21ksoftirqd/320:13:153
1106993311,19cyclictest25897-1kworker/3:0H22:45:013
1106993310,7cyclictest26977-21ls20:00:213
1105993328,3cyclictest33-21ksoftirqd/223:48:182
1105993328,3cyclictest33-21ksoftirqd/223:33:432
1105993328,3cyclictest33-21ksoftirqd/223:02:392
1105993328,3cyclictest33-21ksoftirqd/222:15:122
1105993328,3cyclictest33-21ksoftirqd/222:07:062
1105993328,3cyclictest33-21ksoftirqd/221:59:592
1105993328,3cyclictest20683-21cron20:55:002
1105993327,4cyclictest33-21ksoftirqd/221:39:542
1105993327,4cyclictest33-21ksoftirqd/221:33:442
1105993327,4cyclictest33-21ksoftirqd/220:33:192
1105993327,3cyclictest33-21ksoftirqd/223:16:082
1105993327,3cyclictest33-21ksoftirqd/220:02:582
1105993326,4cyclictest33-21ksoftirqd/219:59:052
1104993329,3cyclictest25-21ksoftirqd/123:20:141
1104993328,3cyclictest25-21ksoftirqd/123:55:201
1104993328,3cyclictest25-21ksoftirqd/122:15:181
1104993328,3cyclictest25-21ksoftirqd/121:40:001
1104993328,3cyclictest25-21ksoftirqd/120:15:171
1104993328,3cyclictest25-21ksoftirqd/119:30:001
1104993328,3cyclictest25-21ksoftirqd/119:15:061
1104993327,4cyclictest25-21ksoftirqd/120:10:001
1104993327,3cyclictest25-21ksoftirqd/122:10:151
110499331,5cyclictest121rcu_preempt22:26:321
1103993329,2cyclictest9-21ksoftirqd/022:15:130
1103993328,3cyclictest9-21ksoftirqd/023:20:200
1103993328,3cyclictest9-21ksoftirqd/021:05:240
1103993327,4cyclictest9-21ksoftirqd/023:37:500
1103993327,4cyclictest9-21ksoftirqd/022:22:120
1103993327,4cyclictest9-21ksoftirqd/020:41:030
1103993327,4cyclictest9-21ksoftirqd/020:21:570
1103993327,4cyclictest9-21ksoftirqd/019:16:260
1103993327,3cyclictest9-21ksoftirqd/022:50:170
1103993326,4cyclictest9-21ksoftirqd/023:41:190
138491320,1ptp4l391rcuc/320:06:153
110699329,7cyclictest22475-21sensors_temp23:05:263
110699326,14cyclictest0-21swapper/320:23:453
1106993211,19cyclictest28307-21latency_hist21:10:003
1105993227,3cyclictest33-21ksoftirqd/221:45:102
1105993227,3cyclictest33-21ksoftirqd/219:34:392
1105993226,4cyclictest33-21ksoftirqd/222:36:262
1105993226,4cyclictest33-21ksoftirqd/220:22:232
1105993226,4cyclictest33-21ksoftirqd/219:11:152
1105993226,4cyclictest33-21ksoftirqd/200:10:462
1104993228,3cyclictest25-21ksoftirqd/123:05:201
1104993227,3cyclictest25-21ksoftirqd/122:45:201
1104993227,3cyclictest25-21ksoftirqd/122:00:191
1104993227,3cyclictest25-21ksoftirqd/121:19:591
1104993226,4cyclictest25-21ksoftirqd/122:40:421
1104993226,4cyclictest25-21ksoftirqd/119:40:141
1104993226,3cyclictest25-21ksoftirqd/100:10:121
1103993227,3cyclictest9-21ksoftirqd/022:40:210
1103993227,3cyclictest9-21ksoftirqd/021:56:410
1103993227,3cyclictest9-21ksoftirqd/020:32:060
1103993227,3cyclictest9-21ksoftirqd/019:29:500
1103993227,3cyclictest9-21ksoftirqd/019:12:390
1103993226,4cyclictest9-21ksoftirqd/023:27:350
1103993226,4cyclictest9-21ksoftirqd/021:26:400
1103993226,4cyclictest9-21ksoftirqd/019:33:350
1103993225,4cyclictest9-21ksoftirqd/023:13:460
110699317,10cyclictest0-21swapper/300:25:023
110699315,17cyclictest0-21swapper/322:10:223
1106993126,3cyclictest41-21ksoftirqd/323:39:493
1106993125,4cyclictest41-21ksoftirqd/322:47:513
1106993125,4cyclictest41-21ksoftirqd/321:26:313
1106993125,4cyclictest41-21ksoftirqd/321:18:523
1106993111,17cyclictest20694-21latency_hist20:55:003
1105993126,3cyclictest33-21ksoftirqd/222:27:422
1105993126,3cyclictest33-21ksoftirqd/220:28:342
1105993125,4cyclictest33-21ksoftirqd/222:57:352
1105993125,4cyclictest33-21ksoftirqd/222:12:552
1105993125,4cyclictest33-21ksoftirqd/219:29:522
1105993124,5cyclictest33-21ksoftirqd/221:26:262
110499313,6cyclictest25-21ksoftirqd/123:30:151
1104993125,4cyclictest25-21ksoftirqd/123:15:011
1103993127,2cyclictest13112-21cron22:50:010
1103993126,3cyclictest9-21ksoftirqd/020:50:190
1103993126,3cyclictest9-21ksoftirqd/000:35:000
1103993125,4cyclictest9-21ksoftirqd/022:00:460
1103993123,5cyclictest9-21ksoftirqd/023:52:010
110699307,9cyclictest0-21swapper/320:35:013
1106993024,4cyclictest41-21ksoftirqd/322:06:433
1106993024,4cyclictest41-21ksoftirqd/321:59:293
1106993024,4cyclictest41-21ksoftirqd/319:49:033
1106993024,4cyclictest41-21ksoftirqd/319:33:183
1106993018,10cyclictest41-21ksoftirqd/300:10:473
1106993017,11cyclictest41-21ksoftirqd/320:30:003
1105993025,3cyclictest33-21ksoftirqd/222:33:152
1105993024,4cyclictest33-21ksoftirqd/223:59:542
1105993024,4cyclictest33-21ksoftirqd/223:10:402
1105993024,4cyclictest33-21ksoftirqd/221:14:022
1105993024,4cyclictest33-21ksoftirqd/220:12:202
1105993024,4cyclictest33-21ksoftirqd/219:47:172
1105993024,4cyclictest33-21ksoftirqd/219:38:392
1105993024,4cyclictest33-21ksoftirqd/200:04:432
1104993025,3cyclictest25-21ksoftirqd/120:00:201
1103993025,3cyclictest9-21ksoftirqd/019:51:320
1103993024,4cyclictest9-21ksoftirqd/021:12:240
1103993024,4cyclictest9-21ksoftirqd/019:48:400
1103993024,3cyclictest9-21ksoftirqd/020:35:190
1103993024,3cyclictest9-21ksoftirqd/000:12:180
110699296,9cyclictest0-21swapper/321:50:283
110699296,15cyclictest0-21swapper/322:50:223
1106992923,4cyclictest41-21ksoftirqd/321:33:493
1106992913,13cyclictest1319-21snmpd21:20:293
1106992912,14cyclictest24100-21fschecks_count00:15:163
1105992924,3cyclictest33-21ksoftirqd/222:54:492
1105992924,3cyclictest33-21ksoftirqd/219:41:172
1105992923,4cyclictest33-21ksoftirqd/219:50:462
1105992923,4cyclictest33-21ksoftirqd/219:16:082
1103992923,4cyclictest9-21ksoftirqd/020:00:190
1103992923,4cyclictest9-21ksoftirqd/000:09:380
1106992823,3cyclictest41-21ksoftirqd/323:47:003
1106992823,3cyclictest41-21ksoftirqd/323:33:083
1105992823,3cyclictest33-21ksoftirqd/223:20:122
1105992822,4cyclictest33-21ksoftirqd/223:39:252
1103992823,3cyclictest9-21ksoftirqd/023:55:190
1103992823,3cyclictest9-21ksoftirqd/021:17:000
138491270,1ptp4l401ktimersoftd/320:40:213
1106992721,4cyclictest41-21ksoftirqd/300:20:413
1103992722,3cyclictest9-21ksoftirqd/023:35:000
1103992722,3cyclictest9-21ksoftirqd/000:36:010
1106992621,3cyclictest41-21ksoftirqd/320:16:123
1106992612,11cyclictest20933-21/usr/sbin/munin19:50:163
1106992610,14cyclictest32582-21sed23:25:283
1105992620,4cyclictest33-21ksoftirqd/221:05:122
110699258,15cyclictest0-21swapper/319:15:003
1106992515,7cyclictest3617-21latency_hist00:40:003
1106992513,9cyclictest11471-21sort20:35:173
1105992419,3cyclictest33-21ksoftirqd/223:08:392
1105992418,4cyclictest33-21ksoftirqd/220:59:422
1012522418,3sleep341-21ksoftirqd/319:25:293
1105992318,3cyclictest33-21ksoftirqd/221:40:222
110599218,10cyclictest25122-21mailstats21:00:292
1105992015,3cyclictest33-21ksoftirqd/200:09:592
1105991914,3cyclictest33-21ksoftirqd/200:31:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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