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2026-05-16 - 20:48
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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 rackdslot2.osadl.org (updated Sat May 16, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154872233167,21sleep10-21swapper/107:09:511
153392206172,22sleep30-21swapper/307:07:573
154732204170,22sleep20-21swapper/207:09:412
151862203170,22sleep00-21swapper/007:05:570
1848721630,6sleep31580099cyclictest10:35:233
2598721420,6sleep31580099cyclictest12:00:133
1579999689,11cyclictest30866-21fschecks_time12:10:162
1579999668,11cyclictest30205-21cat11:00:192
1579999645,16cyclictest0-21swapper/208:20:002
1579999628,10cyclictest15439-21/usr/sbin/munin10:30:192
1579999615,10cyclictest0-21swapper/209:00:192
1579999608,19cyclictest5155-21/usr/sbin/munin12:25:222
1579999607,10cyclictest25984-21irqrtprio07:30:202
1579999598,9cyclictest30552-21/usr/sbin/munin07:40:152
1579999598,11cyclictest1014-21cut07:45:202
9042580,5sleep1907-21unixbench_singl11:05:271
299942580,3sleep233-21ksoftirqd/207:40:002
1579999588,9cyclictest1973-21/usr/sbin/munin10:00:282
1579999577,11cyclictest31479-21ps09:55:212
1579999567,18cyclictest3554-21cut10:05:212
1579999567,16cyclictest0-21swapper/208:42:472
1579999557,16cyclictest10852-21runrttasks09:13:072
1579999556,15cyclictest1308-21runrttasks11:42:202
15799995410,18cyclictest16471-21awk07:10:182
139291540,1ptp4l401ktimersoftd/308:15:203
139291540,1ptp4l401ktimersoftd/307:41:393
208712530,2sleep30-21swapper/309:35:153
1579999527,11cyclictest20184-21awk10:40:182
1579999526,15cyclictest9036-21timedrift12:30:262
139291520,1ptp4l401ktimersoftd/311:36:563
1579999498,14cyclictest1859-21ssh12:15:262
1579999496,7cyclictest22571-21ps10:45:192
1579999496,7cyclictest22571-21ps10:45:192
139291490,42ptp4l0-21swapper/307:10:003
276752480,2sleep30-21swapper/307:35:123
1579999477,7cyclictest24398-21apt-config10:50:002
1579999477,16cyclictest1312-21snmpd10:15:192
15797994539,3cyclictest9-21ksoftirqd/011:20:000
15800994438,4cyclictest15762-21cron09:25:013
15800994330,3cyclictest41-21ksoftirqd/308:00:303
139291430,0ptp4l401ktimersoftd/309:09:493
15800994237,3cyclictest41-21ksoftirqd/311:45:013
15800994236,3cyclictest41-21ksoftirqd/309:50:003
15797994212,4cyclictest9-21ksoftirqd/010:40:000
15797994212,2cyclictest9-21ksoftirqd/008:05:200
15797994135,3cyclictest9-21ksoftirqd/011:45:000
139291410,1ptp4l401ktimersoftd/310:45:083
139291410,1ptp4l401ktimersoftd/310:45:083
139291410,0ptp4l401ktimersoftd/310:34:053
15800994036,3cyclictest41-21ksoftirqd/308:00:003
15800994035,3cyclictest41-21ksoftirqd/310:20:013
15800994033,4cyclictest41-21ksoftirqd/312:37:523
15800994029,9cyclictest41-21ksoftirqd/312:30:143
15799994026,12cyclictest33-21ksoftirqd/211:38:342
15797994034,3cyclictest9-21ksoftirqd/011:54:590
15797994034,3cyclictest9-21ksoftirqd/010:50:000
15797994034,3cyclictest9-21ksoftirqd/010:50:000
15797994034,3cyclictest9-21ksoftirqd/008:20:120
139291400,1ptp4l401ktimersoftd/311:05:153
15800993935,2cyclictest41-21ksoftirqd/307:50:003
15800993934,3cyclictest41-21ksoftirqd/312:10:013
15800993934,3cyclictest41-21ksoftirqd/311:50:003
15800993934,3cyclictest41-21ksoftirqd/308:15:003
15800993932,4cyclictest41-21ksoftirqd/310:05:043
15800993926,3cyclictest41-21ksoftirqd/309:30:203
1579799396,5cyclictest9-21ksoftirqd/007:35:160
15797993934,3cyclictest9-21ksoftirqd/012:40:010
15797993934,3cyclictest9-21ksoftirqd/008:40:010
15797993932,4cyclictest9-21ksoftirqd/011:38:000
15800993833,3cyclictest41-21ksoftirqd/309:00:003
15800993833,3cyclictest41-21ksoftirqd/308:30:263
15800993832,4cyclictest41-21ksoftirqd/309:58:143
15800993832,4cyclictest41-21ksoftirqd/309:17:583
15800993832,4cyclictest41-21ksoftirqd/308:07:013
15800993832,3cyclictest41-21ksoftirqd/310:25:113
1579999387,8cyclictest11245-21systemctl08:05:262
15799993831,5cyclictest33-21ksoftirqd/211:05:552
15799993831,4cyclictest33-21ksoftirqd/208:55:102
15798993832,4cyclictest25-21ksoftirqd/112:25:501
1579799385,3cyclictest121rcu_preempt08:40:120
15797993833,2cyclictest9-21ksoftirqd/008:20:000
15797993833,2cyclictest9-21ksoftirqd/007:15:010
1579799383,2cyclictest9-21ksoftirqd/012:30:230
1579799382,4cyclictest9-21ksoftirqd/011:05:140
1579799382,3cyclictest121rcu_preempt12:25:210
1579799381,2cyclictest121rcu_preempt07:40:230
139291380,0ptp4l401ktimersoftd/311:10:193
15800993733,3cyclictest41-21ksoftirqd/311:20:203
15800993733,3cyclictest41-21ksoftirqd/307:55:003
15800993733,2cyclictest41-21ksoftirqd/309:40:193
15800993732,3cyclictest41-21ksoftirqd/311:19:593
15800993732,3cyclictest41-21ksoftirqd/310:04:593
15800993732,3cyclictest41-21ksoftirqd/309:00:123
15800993732,3cyclictest41-21ksoftirqd/307:27:553
15800993731,4cyclictest41-21ksoftirqd/311:04:213
15800993731,4cyclictest41-21ksoftirqd/307:15:583
1579999378,9cyclictest0-21swapper/211:25:282
15798993731,4cyclictest25-21ksoftirqd/109:56:311
15798993731,4cyclictest25-21ksoftirqd/107:40:521
15798993730,4cyclictest25-21ksoftirqd/110:14:401
1579799377,2cyclictest9-21ksoftirqd/007:45:220
1579799376,2cyclictest121rcu_preempt10:55:200
1579799374,5cyclictest9-21ksoftirqd/009:50:140
1579799374,3cyclictest121rcu_preempt07:15:170
1579799373,6cyclictest9-21ksoftirqd/009:35:160
1579799373,6cyclictest9-21ksoftirqd/008:45:260
15797993733,3cyclictest9-21ksoftirqd/012:20:000
15797993733,2cyclictest9-21ksoftirqd/009:45:220
1579799373,2cyclictest121rcu_preempt09:25:240
15797993730,4cyclictest9-21ksoftirqd/009:32:510
1579799372,4cyclictest9-21ksoftirqd/011:00:250
1579799372,2cyclictest121rcu_preempt09:55:180
1579799372,2cyclictest121rcu_preempt09:05:190
41298360,2rtkit-daemon0-21swapper/108:55:131
41298360,2rtkit-daemon0-21swapper/008:10:270
15800993631,3cyclictest41-21ksoftirqd/312:20:143
15800993631,3cyclictest41-21ksoftirqd/312:15:103
15800993631,3cyclictest41-21ksoftirqd/309:50:193
15800993631,3cyclictest41-21ksoftirqd/309:25:103
15800993631,3cyclictest41-21ksoftirqd/309:15:013
15800993630,4cyclictest41-21ksoftirqd/307:24:013
15799993630,4cyclictest33-21ksoftirqd/212:08:212
15799993630,4cyclictest33-21ksoftirqd/212:01:192
15799993630,4cyclictest33-21ksoftirqd/209:45:542
15799993630,4cyclictest33-21ksoftirqd/208:48:002
15799993630,3cyclictest33-21ksoftirqd/211:57:002
15798993630,4cyclictest25-21ksoftirqd/111:53:251
15798993630,4cyclictest25-21ksoftirqd/111:17:581
15798993630,4cyclictest25-21ksoftirqd/111:12:171
15798993630,4cyclictest25-21ksoftirqd/109:34:291
15798993630,4cyclictest25-21ksoftirqd/108:25:571
15798993630,4cyclictest25-21ksoftirqd/107:29:331
15798993630,3cyclictest25-21ksoftirqd/111:35:131
15798993629,4cyclictest25-21ksoftirqd/112:21:561
15798993629,4cyclictest25-21ksoftirqd/110:07:141
15798993629,4cyclictest25-21ksoftirqd/109:36:451
1579799366,2cyclictest9-21ksoftirqd/010:50:160
1579799363,5cyclictest9-21ksoftirqd/008:00:190
15797993631,3cyclictest9-21ksoftirqd/008:50:180
15797993630,4cyclictest9-21ksoftirqd/007:34:330
15797993630,3cyclictest9-21ksoftirqd/007:55:010
15797993629,4cyclictest9-21ksoftirqd/011:13:320
1579799362,6cyclictest9-21ksoftirqd/010:40:270
1579799362,3cyclictest9-21ksoftirqd/008:30:150
1579799362,3cyclictest121rcu_preempt09:00:260
1579799362,2cyclictest121rcu_preempt11:20:240
1579799362,2cyclictest121rcu_preempt10:10:220
1579799361,2cyclictest121rcu_preempt11:45:160
1579799361,2cyclictest121rcu_preempt11:25:170
1579799361,2cyclictest121rcu_preempt07:20:150
1579799360,7cyclictest9-21ksoftirqd/010:20:270
1579799360,3cyclictest121rcu_preempt10:05:250
41298350,2rtkit-daemon0-21swapper/008:56:240
15800993531,3cyclictest41-21ksoftirqd/310:50:113
15800993530,3cyclictest41-21ksoftirqd/310:55:143
15800993530,3cyclictest41-21ksoftirqd/308:45:013
15800993529,4cyclictest41-21ksoftirqd/310:14:463
15799993529,4cyclictest33-21ksoftirqd/209:24:032
15799993529,4cyclictest33-21ksoftirqd/208:16:552
15799993529,4cyclictest33-21ksoftirqd/207:56:252
15799993529,4cyclictest33-21ksoftirqd/207:51:042
15798993530,3cyclictest25-21ksoftirqd/110:00:201
15798993530,3cyclictest25-21ksoftirqd/109:16:031
15798993530,3cyclictest25-21ksoftirqd/109:00:111
15798993529,4cyclictest25-21ksoftirqd/110:58:131
15798993529,4cyclictest25-21ksoftirqd/107:54:481
15798993528,4cyclictest25-21ksoftirqd/110:16:131
15797993531,2cyclictest9-21ksoftirqd/007:25:580
15797993530,3cyclictest9-21ksoftirqd/010:20:010
15797993530,3cyclictest9-21ksoftirqd/009:40:140
15797993530,2cyclictest9-21ksoftirqd/012:10:210
15797993529,3cyclictest9-21ksoftirqd/011:58:210
15797993529,3cyclictest9-21ksoftirqd/010:00:200
1579799352,6cyclictest121rcu_preempt11:30:190
1579799351,6cyclictest121rcu_preempt09:10:280
1579799351,3cyclictest121rcu_preempt10:30:270
1579799351,2cyclictest121rcu_preempt12:00:160
139291350,0ptp4l401ktimersoftd/311:50:263
1580099343,3cyclictest41-21ksoftirqd/312:29:593
15800993430,3cyclictest41-21ksoftirqd/308:45:183
15800993430,2cyclictest41-21ksoftirqd/311:28:163
15800993429,3cyclictest41-21ksoftirqd/312:14:573
15800993429,3cyclictest41-21ksoftirqd/308:50:183
15800993428,4cyclictest41-21ksoftirqd/310:40:553
15800993428,4cyclictest41-21ksoftirqd/308:37:023
15800993428,4cyclictest41-21ksoftirqd/307:31:553
15800993423,10cyclictest41-21ksoftirqd/311:55:183
1579999348,16cyclictest1312-21snmpd10:28:052
15799993427,4cyclictest33-21ksoftirqd/209:35:062
15799993427,4cyclictest33-21ksoftirqd/207:21:112
15798993428,4cyclictest25-21ksoftirqd/112:31:551
15798993428,4cyclictest25-21ksoftirqd/109:49:571
15798993428,4cyclictest25-21ksoftirqd/107:38:191
15798993428,4cyclictest25-21ksoftirqd/107:21:301
15798993428,3cyclictest25-21ksoftirqd/111:55:101
15798993428,3cyclictest25-21ksoftirqd/108:01:241
15797993430,2cyclictest9-21ksoftirqd/009:25:010
15797993429,3cyclictest9-21ksoftirqd/009:15:200
1579799341,6cyclictest121rcu_preempt08:25:140
1579799341,3cyclictest121rcu_preempt10:25:120
15800993329,3cyclictest41-21ksoftirqd/311:30:193
15800993328,3cyclictest41-21ksoftirqd/308:20:123
15799993328,3cyclictest33-21ksoftirqd/209:30:132
15799993328,3cyclictest33-21ksoftirqd/208:35:122
15799993327,4cyclictest33-21ksoftirqd/212:36:022
1579999332,28cyclictest5795-21kworker/2:008:10:132
15798993328,3cyclictest25-21ksoftirqd/112:00:101
15798993328,3cyclictest25-21ksoftirqd/110:24:311
15798993328,3cyclictest25-21ksoftirqd/109:30:001
15798993328,3cyclictest25-21ksoftirqd/109:21:001
15798993327,4cyclictest25-21ksoftirqd/110:31:291
15798993327,4cyclictest25-21ksoftirqd/108:15:341
15798993327,4cyclictest25-21ksoftirqd/108:14:411
15798993327,4cyclictest25-21ksoftirqd/107:31:211
15798993326,4cyclictest25-21ksoftirqd/111:43:261
1579799334,5cyclictest121rcu_preempt07:55:030
15797993327,3cyclictest9-21ksoftirqd/012:20:150
15797993323,3cyclictest9-21ksoftirqd/012:05:230
15800993227,3cyclictest41-21ksoftirqd/310:20:223
15800993227,3cyclictest41-21ksoftirqd/308:25:143
1579999327,9cyclictest1312-21snmpd09:15:232
15799993226,4cyclictest33-21ksoftirqd/209:54:192
15799993226,4cyclictest33-21ksoftirqd/208:04:272
15798993227,3cyclictest25-21ksoftirqd/110:42:151
15798993227,3cyclictest25-21ksoftirqd/108:50:131
15798993227,3cyclictest25-21ksoftirqd/108:42:251
15798993227,3cyclictest25-21ksoftirqd/108:06:331
15798993227,3cyclictest25-21ksoftirqd/107:17:241
15798993226,4cyclictest25-21ksoftirqd/109:08:051
15798993226,4cyclictest25-21ksoftirqd/107:56:481
15798993226,4cyclictest25-21ksoftirqd/107:45:531
1579999317,23cyclictest14321-21kworker/2:208:32:452
15799993126,3cyclictest33-21ksoftirqd/210:10:402
15799993126,3cyclictest33-21ksoftirqd/208:28:422
15799993125,4cyclictest33-21ksoftirqd/211:24:302
15799993125,4cyclictest33-21ksoftirqd/210:58:252
15798993127,3cyclictest25-21ksoftirqd/109:55:001
15798993127,3cyclictest25-21ksoftirqd/108:35:201
15798993126,3cyclictest25-21ksoftirqd/109:13:541
15798993126,3cyclictest25-21ksoftirqd/108:47:301
15798993125,4cyclictest25-21ksoftirqd/112:14:111
15798993125,4cyclictest25-21ksoftirqd/111:32:031
15798993125,4cyclictest25-21ksoftirqd/110:52:031
15798993125,4cyclictest25-21ksoftirqd/110:49:471
15798993125,4cyclictest25-21ksoftirqd/110:49:471
15798993125,4cyclictest25-21ksoftirqd/109:41:151
15798993125,3cyclictest25-21ksoftirqd/112:05:031
15798993124,4cyclictest25-21ksoftirqd/110:35:061
1579999307,21cyclictest14321-21kworker/2:209:40:252
15799993025,3cyclictest33-21ksoftirqd/211:31:122
15799993025,3cyclictest33-21ksoftirqd/211:15:112
15799993025,3cyclictest33-21ksoftirqd/210:23:312
15799993025,3cyclictest33-21ksoftirqd/209:28:272
15799993025,3cyclictest33-21ksoftirqd/209:05:112
15799993025,3cyclictest33-21ksoftirqd/208:50:372
15798993024,4cyclictest25-21ksoftirqd/110:26:041
15799992912,4cyclictest2521-21gnome-shell10:36:592
15798992925,3cyclictest25-21ksoftirqd/112:15:101
15798992924,3cyclictest25-21ksoftirqd/111:03:591
15798992923,4cyclictest25-21ksoftirqd/112:36:221
15799992824,3cyclictest33-21ksoftirqd/211:10:182
15798992823,3cyclictest25-21ksoftirqd/107:11:361
15798992822,4cyclictest25-21ksoftirqd/108:30:101
15798992822,3cyclictest25-21ksoftirqd/108:21:071
15798992821,4cyclictest25-21ksoftirqd/111:25:131
15799992722,3cyclictest33-21ksoftirqd/207:15:122
15799992720,5cyclictest33-21ksoftirqd/211:49:362
15798992722,3cyclictest25-21ksoftirqd/111:45:131
15799992621,3cyclictest33-21ksoftirqd/207:27:252
15799992520,3cyclictest33-21ksoftirqd/211:53:352
1579999249,13cyclictest2789-21/usr/sbin/munin12:20:142
15798992418,4cyclictest25-21ksoftirqd/111:24:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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