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2026-07-21 - 14:29
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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 all highest latencies:
System rackdslot2.osadl.org (updated Tue Jul 21, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591231168,51phc2sys0-21swapper/319:06:263
47972208174,23sleep20-21swapper/219:07:132
47612206171,23sleep10-21swapper/119:06:481
28822204170,22sleep00-21swapper/019:05:100
54032600,4sleep3401ktimersoftd/322:30:253
530799594,11cyclictest12484-21ptp4l-jitter22:45:243
530799585,11cyclictest5516-21expr19:10:133
530799585,11cyclictest25122-21cut22:05:183
63112570,1sleep00-21swapper/019:10:190
530799564,11cyclictest6607-21gzip21:25:253
530799564,10cyclictest21123-21grep23:05:173
139291550,1ptp4l391rcuc/323:20:263
139291540,1ptp4l391rcuc/319:28:553
530799533,11cyclictest7619-21/usr/sbin/munin21:30:173
530799533,11cyclictest7619-21/usr/sbin/munin21:30:173
530799532,10cyclictest18178-21latency_hist23:00:003
530799525,9cyclictest21762-21cut22:00:003
530799525,9cyclictest16212-21cat00:00:243
530799524,17cyclictest14860-21grep21:45:133
530799522,9cyclictest0-21swapper/300:15:013
530799514,10cyclictest15373-21cut19:30:163
530799502,17cyclictest12226-21latency_hist23:55:003
530799502,11cyclictest17492-21switchtime20:40:263
530799499,14cyclictest25723-21netstat19:50:243
530799492,11cyclictest32078-21timerwakeupswit21:10:273
530799483,16cyclictest25422-21/usr/sbin/munin23:15:243
530799483,11cyclictest11414-21sensors21:35:263
530799482,16cyclictest0-21swapper/320:45:193
5306994836,4cyclictest33-21ksoftirqd/221:35:002
5306994836,4cyclictest33-21ksoftirqd/221:34:592
530799475,9cyclictest2416-21cut23:35:013
530799473,11cyclictest32469-21cut22:20:193
5306994628,15cyclictest23097-21cron20:54:592
530499461,42cyclictest26698-21cron19:55:000
530799452,10cyclictest0-21swapper/321:40:283
530799450,16cyclictest31502-21latency_hist20:05:003
5306994514,3cyclictest33-21ksoftirqd/200:05:002
5306994432,10cyclictest33-21ksoftirqd/219:55:152
139291440,0ptp4l401ktimersoftd/320:53:383
5306994331,10cyclictest33-21ksoftirqd/221:50:292
5304994337,3cyclictest9-21ksoftirqd/022:00:000
530799422,9cyclictest9874-21ls20:25:193
5304994237,2cyclictest9-21ksoftirqd/020:00:000
5307994134,4cyclictest19422-21cron00:10:003
5306994136,3cyclictest33-21ksoftirqd/223:35:132
139291410,0ptp4l401ktimersoftd/320:10:163
530799404,7cyclictest18844-21hddtemp_smartct23:00:183
530799402,15cyclictest7499-21ls22:35:213
5306994035,3cyclictest33-21ksoftirqd/223:00:292
5306994035,3cyclictest33-21ksoftirqd/221:25:002
5306994035,3cyclictest13351-21latency_hist22:50:012
5306994034,3cyclictest33-21ksoftirqd/223:29:592
5306994034,3cyclictest33-21ksoftirqd/221:30:002
530699402,5cyclictest121rcu_preempt23:20:192
5305994036,2cyclictest20805-21kworker/1:100:20:151
5305994033,4cyclictest25-21ksoftirqd/121:20:001
530499408,3cyclictest9-21ksoftirqd/021:20:000
5307993932,4cyclictest32319-21ls23:30:003
530699398,4cyclictest33-21ksoftirqd/220:20:002
530699397,4cyclictest33-21ksoftirqd/219:15:292
5306993935,2cyclictest33-21ksoftirqd/221:59:592
5306993934,3cyclictest33-21ksoftirqd/223:10:002
5306993934,3cyclictest33-21ksoftirqd/222:05:002
5306993934,3cyclictest33-21ksoftirqd/220:30:002
5306993933,4cyclictest33-21ksoftirqd/223:45:142
5306993933,3cyclictest33-21ksoftirqd/223:30:132
5306993933,3cyclictest33-21ksoftirqd/220:55:202
5306993933,3cyclictest33-21ksoftirqd/220:45:012
5306993927,10cyclictest33-21ksoftirqd/222:57:182
530699390,36cyclictest20743-21ls20:50:002
5305993934,3cyclictest25-21ksoftirqd/119:50:001
5305993934,2cyclictest25-21ksoftirqd/123:25:001
5305993933,3cyclictest25-21ksoftirqd/120:40:131
5304993934,3cyclictest9-21ksoftirqd/022:40:000
530699384,2cyclictest121rcu_preempt23:40:232
5306993833,3cyclictest33-21ksoftirqd/222:45:012
5306993833,3cyclictest33-21ksoftirqd/219:25:162
5306993831,3cyclictest33-21ksoftirqd/200:35:142
5305993833,3cyclictest25-21ksoftirqd/123:00:001
5305993832,3cyclictest25-21ksoftirqd/123:35:001
5305993832,3cyclictest25-21ksoftirqd/120:05:151
5305993831,5cyclictest25-21ksoftirqd/119:40:131
530599380,3cyclictest121rcu_preempt19:20:001
135191380,1getstats0-21swapper/320:37:093
5307993731,4cyclictest41-21ksoftirqd/320:19:063
530699375,3cyclictest33-21ksoftirqd/223:54:592
530699374,2cyclictest121rcu_preempt22:50:132
530699373,3cyclictest33-21ksoftirqd/200:15:252
5306993733,2cyclictest33-21ksoftirqd/221:35:202
5306993732,3cyclictest33-21ksoftirqd/222:20:012
5306993732,3cyclictest33-21ksoftirqd/221:45:262
5306993732,3cyclictest33-21ksoftirqd/221:45:012
5306993732,3cyclictest33-21ksoftirqd/220:05:002
5306993732,3cyclictest33-21ksoftirqd/219:35:142
5306993732,3cyclictest33-21ksoftirqd/200:24:592
5306993731,4cyclictest33-21ksoftirqd/222:12:182
5306993731,4cyclictest33-21ksoftirqd/219:30:392
5306993731,4cyclictest33-21ksoftirqd/200:07:162
5306993730,4cyclictest33-21ksoftirqd/223:15:042
5306993726,9cyclictest33-21ksoftirqd/221:15:192
530699372,2cyclictest121rcu_preempt22:20:282
5305993733,2cyclictest25-21ksoftirqd/100:00:001
5305993732,3cyclictest25-21ksoftirqd/121:50:201
5305993732,3cyclictest25-21ksoftirqd/121:20:201
5305993731,3cyclictest25-21ksoftirqd/122:00:001
5305993730,4cyclictest25-21ksoftirqd/122:39:131
530599370,6cyclictest0-21swapper/122:15:131
5304993733,3cyclictest9-21ksoftirqd/019:30:190
5304993731,3cyclictest9-21ksoftirqd/022:45:200
5307993630,4cyclictest41-21ksoftirqd/323:57:503
5307993630,4cyclictest41-21ksoftirqd/322:54:593
5307993630,4cyclictest41-21ksoftirqd/321:09:163
5307993630,4cyclictest41-21ksoftirqd/320:06:023
5307993630,4cyclictest41-21ksoftirqd/300:35:523
530699365,2cyclictest33-21ksoftirqd/220:20:282
530699364,2cyclictest121rcu_preempt00:25:192
530699363,6cyclictest33-21ksoftirqd/223:55:252
5306993632,3cyclictest33-21ksoftirqd/200:10:142
5306993631,3cyclictest33-21ksoftirqd/221:10:132
5306993631,3cyclictest33-21ksoftirqd/220:35:152
5306993631,3cyclictest33-21ksoftirqd/219:45:012
5306993631,3cyclictest33-21ksoftirqd/200:30:202
5306993631,2cyclictest33-21ksoftirqd/222:30:192
5306993630,4cyclictest33-21ksoftirqd/223:15:002
5306993630,4cyclictest33-21ksoftirqd/221:03:262
5306993630,4cyclictest33-21ksoftirqd/221:03:262
5306993630,4cyclictest33-21ksoftirqd/219:24:422
530699362,7cyclictest33-21ksoftirqd/219:50:302
5306993624,10cyclictest33-21ksoftirqd/219:45:252
5305993631,3cyclictest25-21ksoftirqd/122:00:191
5305993631,3cyclictest25-21ksoftirqd/121:05:001
5305993631,3cyclictest25-21ksoftirqd/121:05:001
5305993630,4cyclictest25-21ksoftirqd/121:34:141
5305993630,4cyclictest25-21ksoftirqd/121:34:141
5305993630,4cyclictest25-21ksoftirqd/100:14:291
5305993630,3cyclictest25-21ksoftirqd/121:40:011
5305993629,4cyclictest25-21ksoftirqd/119:33:591
5304993631,3cyclictest9-21ksoftirqd/020:10:000
5304993631,3cyclictest9-21ksoftirqd/019:35:120
5304993630,4cyclictest9-21ksoftirqd/021:03:480
5304993630,4cyclictest9-21ksoftirqd/021:03:480
5304993630,3cyclictest9-21ksoftirqd/023:45:190
5304993630,3cyclictest9-21ksoftirqd/020:48:520
5304993629,4cyclictest9-21ksoftirqd/023:15:340
5304993629,4cyclictest9-21ksoftirqd/021:25:350
230872360,2sleep00-21swapper/019:45:210
530799355,9cyclictest7675-21phc2sys20:20:223
5307993530,3cyclictest41-21ksoftirqd/323:13:023
5307993530,3cyclictest41-21ksoftirqd/300:34:153
5307993529,4cyclictest41-21ksoftirqd/322:44:373
5307993529,4cyclictest41-21ksoftirqd/322:12:553
5307993529,4cyclictest41-21ksoftirqd/320:30:053
5307993529,4cyclictest41-21ksoftirqd/319:58:483
5307993529,4cyclictest41-21ksoftirqd/319:43:083
5306993531,3cyclictest33-21ksoftirqd/221:10:002
5306993531,2cyclictest33-21ksoftirqd/222:40:002
5306993530,3cyclictest33-21ksoftirqd/222:05:122
5306993530,3cyclictest33-21ksoftirqd/220:10:192
5306993530,3cyclictest33-21ksoftirqd/219:10:142
5306993529,4cyclictest33-21ksoftirqd/220:33:582
5305993531,3cyclictest25-21ksoftirqd/122:25:141
5305993531,3cyclictest25-21ksoftirqd/119:55:131
5305993531,3cyclictest25-21ksoftirqd/119:50:201
5305993531,2cyclictest25-21ksoftirqd/122:20:011
5305993531,2cyclictest25-21ksoftirqd/120:00:181
5305993530,3cyclictest25-21ksoftirqd/123:15:011
5305993530,3cyclictest25-21ksoftirqd/120:35:211
5305993530,3cyclictest25-21ksoftirqd/120:30:001
5305993530,3cyclictest25-21ksoftirqd/119:35:201
5305993530,3cyclictest25-21ksoftirqd/100:05:171
5305993529,4cyclictest25-21ksoftirqd/123:17:001
5305993529,4cyclictest25-21ksoftirqd/123:08:181
5305993529,4cyclictest25-21ksoftirqd/121:49:351
5305993529,4cyclictest25-21ksoftirqd/119:26:481
5305993529,3cyclictest25-21ksoftirqd/121:10:231
5304993531,3cyclictest9-21ksoftirqd/020:25:190
5304993531,2cyclictest9-21ksoftirqd/020:45:010
5304993530,3cyclictest9-21ksoftirqd/021:30:190
5304993530,3cyclictest9-21ksoftirqd/021:30:180
5304993530,3cyclictest9-21ksoftirqd/020:30:170
5304993530,3cyclictest9-21ksoftirqd/019:45:010
5304993530,3cyclictest9-21ksoftirqd/000:10:010
5304993529,4cyclictest9-21ksoftirqd/022:25:480
5304993529,4cyclictest9-21ksoftirqd/020:14:140
5304993529,3cyclictest9-21ksoftirqd/023:35:130
5304993529,3cyclictest9-21ksoftirqd/020:50:120
5307993429,3cyclictest41-21ksoftirqd/321:25:003
5306993429,3cyclictest33-21ksoftirqd/222:25:182
5306993428,4cyclictest33-21ksoftirqd/220:08:502
5305993429,3cyclictest25-21ksoftirqd/123:00:071
5305993429,3cyclictest25-21ksoftirqd/122:50:181
5305993429,3cyclictest25-21ksoftirqd/120:30:171
5305993429,3cyclictest25-21ksoftirqd/100:00:131
5305993428,4cyclictest25-21ksoftirqd/120:56:151
5305993428,4cyclictest25-21ksoftirqd/100:38:151
5305993428,3cyclictest25-21ksoftirqd/122:10:011
5304993430,3cyclictest9-21ksoftirqd/022:55:210
5304993430,2cyclictest9-21ksoftirqd/019:25:180
5304993430,2cyclictest9-21ksoftirqd/000:29:590
5304993429,3cyclictest9-21ksoftirqd/023:21:160
5304993429,3cyclictest9-21ksoftirqd/022:33:340
5304993429,3cyclictest9-21ksoftirqd/022:10:400
5304993429,3cyclictest9-21ksoftirqd/021:36:090
5304993428,4cyclictest9-21ksoftirqd/022:54:410
5304993428,4cyclictest9-21ksoftirqd/021:09:100
5304993428,4cyclictest9-21ksoftirqd/000:24:580
5307993328,3cyclictest41-21ksoftirqd/322:27:153
5307993328,3cyclictest41-21ksoftirqd/321:17:273
5307993328,3cyclictest41-21ksoftirqd/319:37:223
5307993327,4cyclictest41-21ksoftirqd/319:45:533
5307993327,3cyclictest41-21ksoftirqd/300:15:123
5305993328,3cyclictest25-21ksoftirqd/123:50:011
5305993328,3cyclictest25-21ksoftirqd/121:05:131
5305993328,3cyclictest25-21ksoftirqd/100:30:001
5305993327,4cyclictest25-21ksoftirqd/122:11:081
5305993327,4cyclictest25-21ksoftirqd/121:29:451
5305993327,4cyclictest25-21ksoftirqd/120:49:491
5305993327,3cyclictest25-21ksoftirqd/123:30:001
5304993330,2cyclictest9-21ksoftirqd/023:30:180
5304993328,3cyclictest9-21ksoftirqd/022:15:250
5304993328,3cyclictest9-21ksoftirqd/020:01:300
5304993328,3cyclictest9-21ksoftirqd/000:30:110
5304993327,4cyclictest9-21ksoftirqd/023:29:500
5304993327,4cyclictest9-21ksoftirqd/023:03:190
5304993327,4cyclictest9-21ksoftirqd/021:48:580
5304993327,4cyclictest9-21ksoftirqd/000:13:160
5304993327,4cyclictest9-21ksoftirqd/000:03:530
5304993327,3cyclictest9-21ksoftirqd/022:40:090
5304993327,3cyclictest9-21ksoftirqd/021:14:310
5304993327,3cyclictest337-21dbus-daemon22:01:590
5307993227,3cyclictest41-21ksoftirqd/322:04:533
5307993227,3cyclictest41-21ksoftirqd/300:20:173
5307993226,4cyclictest41-21ksoftirqd/321:00:143
5307993226,4cyclictest41-21ksoftirqd/321:00:143
5305993227,3cyclictest25-21ksoftirqd/122:40:141
5305993227,3cyclictest25-21ksoftirqd/120:20:131
5305993227,2cyclictest25-21ksoftirqd/119:15:001
5305993226,4cyclictest25-21ksoftirqd/119:20:111
5304993227,3cyclictest9-21ksoftirqd/022:22:230
5304993227,3cyclictest9-21ksoftirqd/022:08:230
5304993227,3cyclictest9-21ksoftirqd/021:50:200
5304993226,4cyclictest9-21ksoftirqd/023:09:240
5304993226,4cyclictest9-21ksoftirqd/020:37:130
5304993226,4cyclictest9-21ksoftirqd/000:18:330
5304993226,3cyclictest9-21ksoftirqd/023:15:000
5307993126,3cyclictest41-21ksoftirqd/323:35:123
5307993126,3cyclictest41-21ksoftirqd/322:17:293
5305993127,2cyclictest25-21ksoftirqd/123:40:011
5305993126,3cyclictest25-21ksoftirqd/122:45:201
5305993126,3cyclictest25-21ksoftirqd/120:15:011
5305993125,4cyclictest25-21ksoftirqd/123:51:301
5305993124,4cyclictest25-21ksoftirqd/120:15:201
5304993126,3cyclictest9-21ksoftirqd/020:56:260
5304993125,4cyclictest9-21ksoftirqd/020:16:140
5307993025,3cyclictest41-21ksoftirqd/300:25:353
5305993024,4cyclictest25-21ksoftirqd/120:52:381
5305993019,9cyclictest25-21ksoftirqd/123:40:261
5304993025,3cyclictest9-21ksoftirqd/021:22:260
5304993024,4cyclictest9-21ksoftirqd/023:59:110
5304993024,4cyclictest9-21ksoftirqd/019:21:310
5304993024,3cyclictest9-21ksoftirqd/021:45:010
5307992924,3cyclictest41-21ksoftirqd/321:50:133
5307992923,4cyclictest41-21ksoftirqd/323:41:223
5305992924,3cyclictest25-21ksoftirqd/122:30:031
5305992924,3cyclictest25-21ksoftirqd/100:30:181
5305992924,3cyclictest25-21ksoftirqd/100:18:341
5305992923,3cyclictest25-21ksoftirqd/121:45:001
5304992926,2cyclictest9-21ksoftirqd/023:45:010
5304992926,2cyclictest9-21ksoftirqd/000:35:190
5304992923,3cyclictest9-21ksoftirqd/020:20:130
5307992823,3cyclictest41-21ksoftirqd/323:46:133
5307992823,3cyclictest41-21ksoftirqd/320:56:293
5307992823,3cyclictest41-21ksoftirqd/319:15:273
5304992823,3cyclictest9-21ksoftirqd/023:51:100
5304992823,3cyclictest9-21ksoftirqd/019:16:290
139291250,0ptp4l401ktimersoftd/319:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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