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2026-11-15 - 04:03
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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 376 highest latencies:
System rackdslot4.osadl.org (updated Sun Nov 15, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65912206170,24sleep30-21swapper/319:06:203
65912206170,24sleep30-21swapper/319:06:193
68332201167,23sleep00-21swapper/019:09:210
68332201167,23sleep00-21swapper/019:09:210
65672201167,23sleep10-21swapper/119:06:011
65672201167,23sleep10-21swapper/119:06:011
67112200167,22sleep20-21swapper/219:07:472
67112200167,22sleep20-21swapper/219:07:472
1385918565,11phc2sys0-21swapper/319:10:013
138491660,1ptp4l401ktimersoftd/300:38:413
7176996518,4cyclictest33-21ksoftirqd/200:00:282
7176996220,9cyclictest33-21ksoftirqd/221:45:152
7176996124,4cyclictest33-21ksoftirqd/223:03:222
7176996019,4cyclictest33-21ksoftirqd/222:00:152
7176995821,4cyclictest33-21ksoftirqd/220:36:112
7176995820,9cyclictest33-21ksoftirqd/200:20:172
7176995820,5cyclictest33-21ksoftirqd/223:30:152
7176995817,9cyclictest33-21ksoftirqd/220:45:262
7176995817,4cyclictest33-21ksoftirqd/222:55:512
138491580,1ptp4l401ktimersoftd/320:05:383
138491580,1ptp4l401ktimersoftd/319:50:183
135191580,6getstats717799cyclictest20:00:133
7176995716,8cyclictest33-21ksoftirqd/221:40:272
7176995716,8cyclictest33-21ksoftirqd/219:30:212
138491570,1ptp4l401ktimersoftd/300:05:233
7176995625,10cyclictest33-21ksoftirqd/221:00:002
7176995622,4cyclictest33-21ksoftirqd/200:06:412
7176995621,4cyclictest33-21ksoftirqd/222:30:192
7176995621,4cyclictest33-21ksoftirqd/222:25:592
7176995619,9cyclictest33-21ksoftirqd/219:35:212
7176995520,9cyclictest33-21ksoftirqd/221:30:002
7176995519,9cyclictest33-21ksoftirqd/200:25:162
7176995514,9cyclictest33-21ksoftirqd/221:50:212
138491550,1ptp4l401ktimersoftd/322:20:243
7176995421,8cyclictest33-21ksoftirqd/200:30:262
7176995419,8cyclictest33-21ksoftirqd/220:50:202
7176995417,8cyclictest33-21ksoftirqd/220:05:152
7176995417,4cyclictest33-21ksoftirqd/221:10:132
286902540,3sleep1241ktimersoftd/123:05:271
7176995321,9cyclictest33-21ksoftirqd/221:05:002
7176995321,5cyclictest33-21ksoftirqd/219:25:172
7176995320,9cyclictest33-21ksoftirqd/223:55:132
7176995316,4cyclictest33-21ksoftirqd/220:30:232
7176995315,8cyclictest33-21ksoftirqd/221:30:202
7176995314,6cyclictest33-21ksoftirqd/222:50:132
717699526,7cyclictest33-21ksoftirqd/223:20:132
7176995221,8cyclictest33-21ksoftirqd/220:05:002
7176995220,9cyclictest33-21ksoftirqd/219:20:242
7176995219,10cyclictest33-21ksoftirqd/220:25:242
7176995215,9cyclictest33-21ksoftirqd/222:20:192
7176995215,8cyclictest33-21ksoftirqd/221:55:152
7176995122,9cyclictest33-21ksoftirqd/223:40:242
7176995118,9cyclictest33-21ksoftirqd/223:15:242
7176995118,10cyclictest33-21ksoftirqd/222:05:132
7176995116,9cyclictest33-21ksoftirqd/223:45:252
7177995020,4cyclictest41-21ksoftirqd/323:40:133
717699504,3cyclictest33-21ksoftirqd/223:50:222
7176995017,9cyclictest33-21ksoftirqd/220:40:212
7176995016,6cyclictest33-21ksoftirqd/222:40:162
7176994918,9cyclictest33-21ksoftirqd/220:20:132
717699483,3cyclictest33-21ksoftirqd/200:15:142
717699482,3cyclictest33-21ksoftirqd/200:35:142
7176994818,8cyclictest33-21ksoftirqd/222:10:182
7176994817,7cyclictest33-21ksoftirqd/221:15:122
717699481,5cyclictest33-21ksoftirqd/222:39:592
7176994815,9cyclictest33-21ksoftirqd/219:55:252
7176994811,6cyclictest33-21ksoftirqd/220:15:222
7176994811,6cyclictest33-21ksoftirqd/219:50:132
7176994737,2cyclictest33-21ksoftirqd/200:10:152
717699473,3cyclictest33-21ksoftirqd/221:05:232
717699473,3cyclictest33-21ksoftirqd/221:05:232
7176994716,10cyclictest33-21ksoftirqd/223:25:142
717699462,2cyclictest33-21ksoftirqd/222:45:212
7176994614,9cyclictest33-21ksoftirqd/221:35:222
717499461,42cyclictest11804-21cron23:40:000
7176994537,6cyclictest33-21ksoftirqd/219:15:002
7176994535,3cyclictest33-21ksoftirqd/223:35:192
7176994411,5cyclictest33-21ksoftirqd/222:15:182
7175994414,29cyclictest0-21swapper/121:02:231
135191440,1getstats1551-1kworker/3:0H20:20:143
717799432,5cyclictest41-21ksoftirqd/320:55:003
717699437,6cyclictest33-21ksoftirqd/221:22:502
717699434,8cyclictest33-21ksoftirqd/219:15:122
717699430,2cyclictest33-21ksoftirqd/223:15:012
138491430,0ptp4l401ktimersoftd/320:55:123
83722420,3sleep30-21swapper/322:25:213
717699422,2cyclictest121rcu_preempt19:40:182
7176994214,9cyclictest33-21ksoftirqd/220:10:132
138491420,0ptp4l401ktimersoftd/319:17:073
7177994128,11cyclictest41-21ksoftirqd/320:37:013
7177994112,3cyclictest41-21ksoftirqd/300:25:003
7177994111,4cyclictest41-21ksoftirqd/323:50:133
7177994110,3cyclictest41-21ksoftirqd/321:55:203
7176994136,3cyclictest33-21ksoftirqd/223:10:002
7176994135,3cyclictest33-21ksoftirqd/219:50:002
138491410,0ptp4l401ktimersoftd/320:25:113
138491410,0ptp4l401ktimersoftd/320:19:413
717799407,4cyclictest41-21ksoftirqd/322:35:253
7174994036,2cyclictest9-21ksoftirqd/019:15:000
717799397,4cyclictest41-21ksoftirqd/300:00:173
717799393,3cyclictest41-21ksoftirqd/322:05:003
7177993930,5cyclictest41-21ksoftirqd/321:45:003
7177993925,12cyclictest41-21ksoftirqd/319:35:003
7177993911,4cyclictest41-21ksoftirqd/322:40:163
138491390,0ptp4l401ktimersoftd/323:16:083
717799389,3cyclictest41-21ksoftirqd/300:30:183
717799388,3cyclictest41-21ksoftirqd/319:25:143
7177993833,3cyclictest41-21ksoftirqd/323:25:003
7177993831,4cyclictest41-21ksoftirqd/320:30:093
7177993823,4cyclictest41-21ksoftirqd/323:55:243
717799381,2cyclictest121rcu_preempt00:20:013
7175993811,26cyclictest0-21swapper/119:53:531
717799375,3cyclictest41-21ksoftirqd/322:15:163
717799374,3cyclictest41-21ksoftirqd/322:50:133
717799373,3cyclictest121rcu_preempt20:50:003
7177993732,3cyclictest41-21ksoftirqd/323:25:173
7177993732,3cyclictest41-21ksoftirqd/300:25:173
7177993731,4cyclictest41-21ksoftirqd/322:59:343
7177993731,3cyclictest41-21ksoftirqd/321:25:003
7177993724,4cyclictest41-21ksoftirqd/321:05:183
7177993724,4cyclictest41-21ksoftirqd/321:05:183
7177993723,3cyclictest41-21ksoftirqd/323:45:153
7177993715,15cyclictest41-21ksoftirqd/321:15:013
7175993731,4cyclictest25-21ksoftirqd/100:28:391
7175993730,4cyclictest25-21ksoftirqd/122:34:581
7175993710,25cyclictest0-21swapper/123:34:131
7174993731,4cyclictest9-21ksoftirqd/019:53:170
50798370,12rtkit-daemon1023-21apache221:22:003
717799366,2cyclictest41-21ksoftirqd/322:45:203
717799365,3cyclictest41-21ksoftirqd/321:15:223
717799364,4cyclictest41-21ksoftirqd/320:10:223
717799364,3cyclictest41-21ksoftirqd/321:35:003
7177993630,4cyclictest41-21ksoftirqd/323:13:273
7177993630,3cyclictest41-21ksoftirqd/321:35:143
7177993629,5cyclictest24414-21ls19:45:013
7175993631,3cyclictest25-21ksoftirqd/119:45:121
7175993630,4cyclictest25-21ksoftirqd/121:56:431
7175993630,4cyclictest25-21ksoftirqd/121:38:171
7175993630,4cyclictest25-21ksoftirqd/120:21:021
7174993631,3cyclictest9-21ksoftirqd/019:50:000
7174993630,4cyclictest9-21ksoftirqd/021:17:300
7174993630,4cyclictest9-21ksoftirqd/021:07:190
7174993630,4cyclictest9-21ksoftirqd/021:07:190
717799355,3cyclictest41-21ksoftirqd/322:10:133
7177993529,3cyclictest41-21ksoftirqd/323:35:243
7177993529,3cyclictest41-21ksoftirqd/321:00:133
7177993529,3cyclictest41-21ksoftirqd/320:40:143
717799352,3cyclictest41-21ksoftirqd/320:00:003
7177993523,3cyclictest41-21ksoftirqd/322:30:183
7175993530,3cyclictest25-21ksoftirqd/122:07:141
7175993530,3cyclictest25-21ksoftirqd/121:44:551
7175993529,4cyclictest25-21ksoftirqd/122:13:161
7175993529,4cyclictest25-21ksoftirqd/120:17:411
7175993529,4cyclictest25-21ksoftirqd/120:14:041
7175993529,4cyclictest25-21ksoftirqd/120:01:051
7175993529,4cyclictest25-21ksoftirqd/100:20:411
7174993530,3cyclictest9-21ksoftirqd/020:05:000
7174993530,3cyclictest19528-21cron21:45:000
7174993529,4cyclictest9-21ksoftirqd/023:33:060
7174993529,4cyclictest9-21ksoftirqd/023:12:000
7174993529,4cyclictest9-21ksoftirqd/020:20:000
717799344,3cyclictest41-21ksoftirqd/323:10:013
717799343,3cyclictest41-21ksoftirqd/319:35:123
7177993429,3cyclictest41-21ksoftirqd/300:10:183
7177993427,2cyclictest41-21ksoftirqd/321:45:133
717799342,4cyclictest41-21ksoftirqd/319:25:003
7177993420,3cyclictest41-21ksoftirqd/323:30:183
7175993430,2cyclictest25-21ksoftirqd/121:00:001
7175993429,3cyclictest25-21ksoftirqd/122:45:081
7175993428,4cyclictest25-21ksoftirqd/123:40:041
7175993428,4cyclictest25-21ksoftirqd/123:36:471
7175993428,4cyclictest25-21ksoftirqd/120:44:051
7175993428,4cyclictest25-21ksoftirqd/119:57:321
7175993428,4cyclictest25-21ksoftirqd/119:41:551
7174993429,3cyclictest9-21ksoftirqd/023:20:090
7174993429,3cyclictest9-21ksoftirqd/021:55:330
7174993428,4cyclictest9-21ksoftirqd/023:06:540
7174993428,4cyclictest9-21ksoftirqd/022:23:220
7174993428,4cyclictest9-21ksoftirqd/020:10:340
7174993428,4cyclictest9-21ksoftirqd/000:20:320
717799335,3cyclictest41-21ksoftirqd/322:05:123
717799333,6cyclictest41-21ksoftirqd/321:50:123
717799333,2cyclictest41-21ksoftirqd/319:45:253
7175993328,3cyclictest25-21ksoftirqd/123:48:551
7175993328,3cyclictest25-21ksoftirqd/123:02:301
7175993328,3cyclictest25-21ksoftirqd/122:35:131
7175993327,4cyclictest25-21ksoftirqd/121:51:451
7175993326,4cyclictest25-21ksoftirqd/123:14:461
7175993323,3cyclictest25-21ksoftirqd/121:45:181
7174993329,2cyclictest9-21ksoftirqd/021:25:010
7174993328,3cyclictest9-21ksoftirqd/023:17:090
7174993328,3cyclictest9-21ksoftirqd/022:05:280
7174993328,3cyclictest9-21ksoftirqd/021:55:000
7174993328,3cyclictest9-21ksoftirqd/020:34:200
7174993328,3cyclictest9-21ksoftirqd/020:21:140
7174993327,4cyclictest9-21ksoftirqd/023:55:330
7174993327,4cyclictest9-21ksoftirqd/023:44:050
7174993327,4cyclictest9-21ksoftirqd/022:29:150
7174993327,4cyclictest9-21ksoftirqd/021:01:450
7174993327,4cyclictest9-21ksoftirqd/020:58:120
7174993327,4cyclictest9-21ksoftirqd/020:51:590
50798330,1rtkit-daemon0-21swapper/021:29:040
7177993228,3cyclictest41-21ksoftirqd/323:05:003
7175993228,3cyclictest25-21ksoftirqd/120:05:191
7175993227,3cyclictest25-21ksoftirqd/123:51:071
7175993227,3cyclictest25-21ksoftirqd/123:21:201
7175993227,3cyclictest25-21ksoftirqd/122:00:121
7175993227,3cyclictest25-21ksoftirqd/120:33:581
7175993227,3cyclictest25-21ksoftirqd/119:12:191
7175993226,4cyclictest25-21ksoftirqd/122:26:191
7175993226,4cyclictest25-21ksoftirqd/121:24:131
7175993226,4cyclictest25-21ksoftirqd/120:29:301
7175993226,4cyclictest25-21ksoftirqd/119:38:341
7175993225,5cyclictest25-21ksoftirqd/119:24:061
7175993225,4cyclictest25-21ksoftirqd/100:31:231
7174993228,2cyclictest9-21ksoftirqd/020:10:010
7174993227,3cyclictest9-21ksoftirqd/023:50:430
7174993227,3cyclictest9-21ksoftirqd/022:50:090
7174993227,3cyclictest9-21ksoftirqd/022:14:390
7174993227,3cyclictest9-21ksoftirqd/022:03:120
7174993227,3cyclictest9-21ksoftirqd/021:13:130
7174993226,4cyclictest9-21ksoftirqd/020:40:440
7174993226,4cyclictest9-21ksoftirqd/020:35:060
7174993226,4cyclictest9-21ksoftirqd/019:30:360
7174993226,3cyclictest12666-21cpuspeed_turbos20:25:130
7175993126,3cyclictest25-21ksoftirqd/122:57:201
7175993126,3cyclictest25-21ksoftirqd/121:32:191
7175993125,4cyclictest25-21ksoftirqd/121:16:311
7175993125,4cyclictest25-21ksoftirqd/100:15:441
7174993126,3cyclictest9-21ksoftirqd/023:25:170
7174993126,3cyclictest9-21ksoftirqd/000:40:000
7174993126,3cyclictest9-21ksoftirqd/000:15:100
7174993126,3cyclictest31977-21kworker/0:219:30:000
7174993124,4cyclictest9-21ksoftirqd/019:40:580
7175993024,4cyclictest25-21ksoftirqd/120:53:161
7174993025,3cyclictest9-21ksoftirqd/019:55:190
7174993025,3cyclictest9-21ksoftirqd/019:22:360
7174993024,4cyclictest9-21ksoftirqd/021:36:320
7174993024,4cyclictest9-21ksoftirqd/019:18:190
717499302,25cyclictest5030-21fschecks_count00:30:150
7175992923,4cyclictest25-21ksoftirqd/123:58:461
7175992923,4cyclictest25-21ksoftirqd/121:14:341
7175992923,4cyclictest25-21ksoftirqd/121:06:161
7175992923,4cyclictest25-21ksoftirqd/121:06:161
7175992923,4cyclictest25-21ksoftirqd/100:36:411
7174992925,3cyclictest9-21ksoftirqd/022:30:200
7174992924,3cyclictest9-21ksoftirqd/023:45:320
7174992924,3cyclictest9-21ksoftirqd/022:44:210
7174992924,3cyclictest9-21ksoftirqd/000:27:460
7174992923,4cyclictest9-21ksoftirqd/022:47:290
7175992824,2cyclictest25-21ksoftirqd/120:40:001
7175992823,3cyclictest25-21ksoftirqd/123:15:161
7175992823,3cyclictest25-21ksoftirqd/122:19:581
7175992823,3cyclictest25-21ksoftirqd/119:34:251
7175992823,3cyclictest25-21ksoftirqd/119:27:021
7175992823,3cyclictest25-21ksoftirqd/100:04:411
7175992822,4cyclictest25-21ksoftirqd/120:47:541
7175992822,4cyclictest25-21ksoftirqd/100:08:381
7174992824,3cyclictest9-21ksoftirqd/000:07:240
7174992823,3cyclictest9-21ksoftirqd/021:30:180
7174992822,4cyclictest9-21ksoftirqd/000:11:530
7174992821,5cyclictest9-21ksoftirqd/000:01:350
7175992722,3cyclictest25-21ksoftirqd/122:40:111
7175992721,4cyclictest25-21ksoftirqd/122:50:311
7175992721,3cyclictest25-21ksoftirqd/123:25:521
7174992722,3cyclictest9-21ksoftirqd/023:04:220
7174992722,3cyclictest9-21ksoftirqd/019:36:040
7175992621,3cyclictest25-21ksoftirqd/122:20:191
7175992621,3cyclictest25-21ksoftirqd/119:15:251
7175992621,3cyclictest25-21ksoftirqd/100:14:341
7174992623,2cyclictest9-21ksoftirqd/022:55:230
7174992621,3cyclictest9-21ksoftirqd/022:35:190
7174992621,3cyclictest9-21ksoftirqd/020:47:330
7174992421,2cyclictest9-21ksoftirqd/022:15:130
7174992420,3cyclictest9-21ksoftirqd/021:45:180
7175991913,4cyclictest25-21ksoftirqd/121:25:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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