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2026-04-17 - 08:30
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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 792 highest latencies:
System rackdslot4.osadl.org (updated Fri Apr 17, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219072204170,22sleep10-21swapper/119:06:561
220022203169,22sleep30-21swapper/319:07:463
219882201169,21sleep20-21swapper/219:07:452
219062198164,22sleep00-21swapper/019:06:550
1266721470,6sleep22259699cyclictest23:50:222
10952820,2sleep21090-21grep19:19:292
106292810,3sleep30-21swapper/319:17:363
149992770,5sleep215012-21tee19:21:502
208922690,6sleep0101ktimersoftd/019:14:010
271622650,5sleep127160-21od19:18:511
284082640,7sleep02259499cyclictest19:22:550
22597996229,9cyclictest41-21ksoftirqd/319:22:013
259932600,2sleep10-21swapper/119:22:511
175582580,2sleep30-21swapper/319:40:193
22597995725,3cyclictest41-21ksoftirqd/320:20:123
91832560,4sleep0101ktimersoftd/022:40:120
315762560,2sleep20-21swapper/220:10:102
22597995627,8cyclictest41-21ksoftirqd/319:13:103
22597995426,3cyclictest41-21ksoftirqd/300:30:163
22597995425,7cyclictest41-21ksoftirqd/320:00:243
22597995423,4cyclictest41-21ksoftirqd/322:40:213
138491540,0ptp4l401ktimersoftd/322:16:413
22597995317,5cyclictest41-21ksoftirqd/322:25:003
76382490,2sleep20-21swapper/222:35:212
2259799497,4cyclictest41-21ksoftirqd/321:28:143
22597994921,6cyclictest41-21ksoftirqd/323:05:003
22597994919,3cyclictest41-21ksoftirqd/322:00:263
22597994918,3cyclictest41-21ksoftirqd/322:35:143
22597994917,4cyclictest41-21ksoftirqd/322:30:193
22597994916,4cyclictest41-21ksoftirqd/320:45:143
22597994823,6cyclictest41-21ksoftirqd/300:05:143
22597994816,7cyclictest41-21ksoftirqd/323:25:003
22597994814,9cyclictest41-21ksoftirqd/321:10:003
2259799479,4cyclictest41-21ksoftirqd/319:29:483
22597994719,4cyclictest41-21ksoftirqd/322:10:273
22597994718,4cyclictest41-21ksoftirqd/323:40:163
22597994716,4cyclictest41-21ksoftirqd/321:30:263
22597994716,4cyclictest41-21ksoftirqd/320:10:193
2259799468,5cyclictest41-21ksoftirqd/320:59:293
22597994640,3cyclictest41-21ksoftirqd/323:20:003
22597994628,16cyclictest41-21ksoftirqd/320:35:003
22597994621,7cyclictest41-21ksoftirqd/300:20:153
22597994614,4cyclictest41-21ksoftirqd/322:25:153
2259799458,4cyclictest41-21ksoftirqd/323:59:573
22597994518,7cyclictest41-21ksoftirqd/321:55:253
22597994517,3cyclictest41-21ksoftirqd/321:55:003
22597994512,3cyclictest41-21ksoftirqd/300:15:273
2259799447,4cyclictest41-21ksoftirqd/321:37:483
2259799447,4cyclictest41-21ksoftirqd/320:44:253
2259799447,4cyclictest41-21ksoftirqd/320:15:043
2259799446,4cyclictest41-21ksoftirqd/323:53:593
22597994424,17cyclictest41-21ksoftirqd/300:15:013
22597994417,6cyclictest41-21ksoftirqd/300:35:133
22597994413,4cyclictest41-21ksoftirqd/300:00:103
22597994412,10cyclictest41-21ksoftirqd/321:15:253
22597994411,9cyclictest41-21ksoftirqd/323:35:193
22597994411,9cyclictest41-21ksoftirqd/323:35:183
22597994411,4cyclictest41-21ksoftirqd/319:55:123
22597994410,7cyclictest41-21ksoftirqd/323:30:223
138491440,0ptp4l401ktimersoftd/322:52:233
2259799436,4cyclictest41-21ksoftirqd/322:46:283
2259799434,4cyclictest41-21ksoftirqd/323:08:263
2259799431,9cyclictest41-21ksoftirqd/319:30:133
22597994315,10cyclictest41-21ksoftirqd/319:50:133
22597994314,7cyclictest41-21ksoftirqd/320:35:243
138491430,0ptp4l401ktimersoftd/319:46:223
2259799427,4cyclictest41-21ksoftirqd/323:47:053
2259799426,4cyclictest41-21ksoftirqd/321:00:213
22597994211,3cyclictest41-21ksoftirqd/300:25:153
22595994237,3cyclictest25-21ksoftirqd/123:40:001
22595994237,3cyclictest25-21ksoftirqd/123:40:001
2259799413,2cyclictest41-21ksoftirqd/321:14:593
2259799410,3cyclictest41-21ksoftirqd/321:20:163
2259799409,7cyclictest41-21ksoftirqd/320:50:143
2259799409,7cyclictest41-21ksoftirqd/320:50:143
2259799405,4cyclictest41-21ksoftirqd/322:05:243
22596994034,3cyclictest33-21ksoftirqd/222:20:012
22597993934,3cyclictest41-21ksoftirqd/321:50:003
22597993934,3cyclictest41-21ksoftirqd/320:05:133
22597993934,3cyclictest41-21ksoftirqd/319:40:013
22596993933,3cyclictest33-21ksoftirqd/219:50:012
22596993932,5cyclictest33-21ksoftirqd/223:35:582
22596993932,5cyclictest33-21ksoftirqd/223:35:582
22595993933,3cyclictest25-21ksoftirqd/120:34:591
22595993931,5cyclictest25-21ksoftirqd/122:17:001
22594993929,7cyclictest9-21ksoftirqd/019:19:230
138491390,0ptp4l401ktimersoftd/320:25:103
2259799385,7cyclictest41-21ksoftirqd/323:10:153
22597993824,3cyclictest41-21ksoftirqd/321:40:203
22596993834,2cyclictest33-21ksoftirqd/221:19:592
22596993833,3cyclictest33-21ksoftirqd/220:40:002
22595993833,3cyclictest25-21ksoftirqd/121:50:001
22595993832,4cyclictest28977-21cron00:25:001
22595993832,3cyclictest25-21ksoftirqd/119:10:111
22595993831,4cyclictest25-21ksoftirqd/121:31:171
2259799376,7cyclictest41-21ksoftirqd/323:25:223
22597993731,4cyclictest41-21ksoftirqd/322:55:483
22596993731,4cyclictest33-21ksoftirqd/222:08:212
22596993731,3cyclictest33-21ksoftirqd/219:14:162
22596993731,3cyclictest223-21systemd-journal19:40:002
22596993730,4cyclictest33-21ksoftirqd/223:19:212
22596993730,4cyclictest33-21ksoftirqd/222:30:112
2259699372,32cyclictest981-21cron22:25:002
22595993733,2cyclictest25-21ksoftirqd/119:40:011
22595993731,3cyclictest25-21ksoftirqd/120:29:591
2259599371,33cyclictest28763-21cron21:10:001
22596993631,3cyclictest33-21ksoftirqd/220:55:132
22596993631,3cyclictest33-21ksoftirqd/200:25:442
22596993631,2cyclictest33-21ksoftirqd/221:45:002
22596993630,4cyclictest33-21ksoftirqd/222:01:352
22596993630,4cyclictest33-21ksoftirqd/200:32:192
22596993630,4cyclictest33-21ksoftirqd/200:11:332
22595993632,2cyclictest25-21ksoftirqd/122:45:001
22595993631,3cyclictest25-21ksoftirqd/100:15:011
22595993630,4cyclictest25-21ksoftirqd/100:16:291
22595993630,4cyclictest25-21ksoftirqd/100:05:111
22595993630,3cyclictest25-21ksoftirqd/123:05:001
22595993630,3cyclictest25-21ksoftirqd/120:45:101
22595993630,3cyclictest25-21ksoftirqd/120:19:591
22595993629,5cyclictest25-21ksoftirqd/123:41:511
22594993631,3cyclictest9-21ksoftirqd/020:35:010
22594993630,4cyclictest9-21ksoftirqd/021:59:000
22594993630,4cyclictest9-21ksoftirqd/019:50:070
22594993630,4cyclictest9-21ksoftirqd/000:24:140
22596993530,3cyclictest33-21ksoftirqd/222:45:182
22596993530,3cyclictest33-21ksoftirqd/219:35:002
22596993529,4cyclictest33-21ksoftirqd/223:46:012
22596993529,4cyclictest33-21ksoftirqd/222:41:382
22596993529,4cyclictest33-21ksoftirqd/221:07:402
22596993529,3cyclictest33-21ksoftirqd/219:42:582
22596993528,4cyclictest33-21ksoftirqd/223:28:562
22596993528,4cyclictest33-21ksoftirqd/220:34:592
22596993524,9cyclictest33-21ksoftirqd/222:25:172
22595993530,3cyclictest28628-21sh23:20:001
22595993530,3cyclictest25-21ksoftirqd/122:55:001
22595993529,4cyclictest25-21ksoftirqd/123:08:091
22595993529,4cyclictest25-21ksoftirqd/122:46:591
22595993529,4cyclictest25-21ksoftirqd/121:51:031
22595993529,4cyclictest25-21ksoftirqd/120:57:311
22595993529,4cyclictest25-21ksoftirqd/120:40:581
22595993529,4cyclictest25-21ksoftirqd/120:11:151
22595993529,4cyclictest25-21ksoftirqd/119:59:181
22595993529,4cyclictest25-21ksoftirqd/100:30:491
22595993528,4cyclictest25-21ksoftirqd/120:21:171
22594993530,3cyclictest9-21ksoftirqd/022:55:110
22594993530,3cyclictest9-21ksoftirqd/022:00:110
22594993529,4cyclictest9-21ksoftirqd/022:30:330
22594993529,4cyclictest9-21ksoftirqd/022:15:370
22594993529,4cyclictest9-21ksoftirqd/020:45:590
22594993529,4cyclictest9-21ksoftirqd/020:14:460
22596993430,2cyclictest33-21ksoftirqd/221:45:152
22596993429,3cyclictest33-21ksoftirqd/223:40:122
22596993429,3cyclictest33-21ksoftirqd/221:10:182
22596993429,3cyclictest33-21ksoftirqd/200:22:152
22596993427,4cyclictest33-21ksoftirqd/222:59:122
22596993427,4cyclictest33-21ksoftirqd/220:07:092
22595993429,3cyclictest25-21ksoftirqd/122:14:251
22595993428,4cyclictest25-21ksoftirqd/123:47:211
22595993428,4cyclictest25-21ksoftirqd/123:26:381
22595993428,4cyclictest25-21ksoftirqd/122:36:321
22595993428,4cyclictest25-21ksoftirqd/100:04:261
22595993427,4cyclictest25-21ksoftirqd/122:28:371
2259599340,2cyclictest121rcu_preempt20:35:161
22594993428,4cyclictest9-21ksoftirqd/023:57:300
22594993428,4cyclictest9-21ksoftirqd/023:40:500
22594993428,4cyclictest9-21ksoftirqd/023:39:490
22594993428,4cyclictest9-21ksoftirqd/023:39:490
22594993428,4cyclictest9-21ksoftirqd/022:05:500
22594993428,4cyclictest9-21ksoftirqd/021:51:340
22594993428,4cyclictest9-21ksoftirqd/021:45:450
22594993428,4cyclictest9-21ksoftirqd/019:55:570
22594993428,4cyclictest9-21ksoftirqd/019:27:520
22594993428,4cyclictest9-21ksoftirqd/000:34:090
22594993428,4cyclictest9-21ksoftirqd/000:19:170
50798330,2rtkit-daemon0-21swapper/000:05:080
22596993329,2cyclictest33-21ksoftirqd/219:50:192
22596993328,3cyclictest33-21ksoftirqd/223:10:092
22596993328,3cyclictest33-21ksoftirqd/223:05:032
22596993328,3cyclictest33-21ksoftirqd/223:04:592
22596993328,3cyclictest33-21ksoftirqd/221:35:272
22596993328,2cyclictest33-21ksoftirqd/221:30:002
22596993327,4cyclictest33-21ksoftirqd/223:21:422
22596993327,4cyclictest33-21ksoftirqd/221:30:062
22596993327,4cyclictest33-21ksoftirqd/221:03:402
22596993327,4cyclictest33-21ksoftirqd/220:15:362
22596993327,4cyclictest33-21ksoftirqd/200:18:512
22596993327,3cyclictest33-21ksoftirqd/220:00:412
22596993326,4cyclictest33-21ksoftirqd/223:30:092
22596993326,4cyclictest33-21ksoftirqd/221:57:182
22596993326,4cyclictest33-21ksoftirqd/221:51:162
22595993329,2cyclictest17407-21irqrtprio19:40:181
22595993328,3cyclictest25-21ksoftirqd/121:25:151
22595993327,4cyclictest25-21ksoftirqd/123:55:431
22595993327,4cyclictest25-21ksoftirqd/123:53:061
22595993326,5cyclictest25-21ksoftirqd/100:28:121
22594993328,3cyclictest9-21ksoftirqd/019:34:020
22594993327,4cyclictest9-21ksoftirqd/023:08:360
22594993327,4cyclictest9-21ksoftirqd/021:01:400
22594993326,4cyclictest9-21ksoftirqd/020:38:080
22596993227,3cyclictest33-21ksoftirqd/223:59:432
22596993227,3cyclictest33-21ksoftirqd/222:50:272
22596993226,4cyclictest33-21ksoftirqd/200:02:382
2259699320,5cyclictest3163-21ls21:20:262
22595993228,2cyclictest25-21ksoftirqd/122:00:001
22595993227,3cyclictest25-21ksoftirqd/123:13:581
22595993227,3cyclictest25-21ksoftirqd/122:20:191
22595993227,3cyclictest25-21ksoftirqd/119:50:181
22595993227,3cyclictest25-21ksoftirqd/119:45:211
22595993226,4cyclictest25-21ksoftirqd/122:01:151
22595993226,4cyclictest25-21ksoftirqd/100:39:321
22594993227,3cyclictest9-21ksoftirqd/023:33:030
22594993227,3cyclictest9-21ksoftirqd/023:27:340
22594993227,3cyclictest9-21ksoftirqd/023:04:560
22594993227,3cyclictest9-21ksoftirqd/020:16:060
22594993226,4cyclictest9-21ksoftirqd/023:54:380
22594993226,4cyclictest9-21ksoftirqd/023:23:000
22594993226,4cyclictest9-21ksoftirqd/021:05:330
22594993226,4cyclictest9-21ksoftirqd/000:37:540
22594993226,4cyclictest9-21ksoftirqd/000:02:320
22594993226,3cyclictest8777-21cron21:35:000
22596993127,3cyclictest33-21ksoftirqd/200:35:472
22596993126,3cyclictest33-21ksoftirqd/220:22:262
22596993126,3cyclictest33-21ksoftirqd/219:25:092
22595993127,3cyclictest25-21ksoftirqd/123:30:171
22595993126,3cyclictest25-21ksoftirqd/121:23:301
22595993126,3cyclictest25-21ksoftirqd/120:55:001
22595993126,3cyclictest25-21ksoftirqd/120:55:001
22595993125,4cyclictest25-21ksoftirqd/120:07:221
22595993125,4cyclictest25-21ksoftirqd/120:02:151
22594993127,2cyclictest11302-21latency_hist21:40:000
22594993126,3cyclictest9-21ksoftirqd/022:46:420
22594993126,3cyclictest9-21ksoftirqd/022:20:350
22594993125,4cyclictest9-21ksoftirqd/020:04:030
22594993125,3cyclictest9-21ksoftirqd/020:56:010
22594993124,4cyclictest9-21ksoftirqd/021:12:550
22595993025,3cyclictest25-21ksoftirqd/123:20:441
22595993025,3cyclictest25-21ksoftirqd/122:59:551
22595993025,3cyclictest25-21ksoftirqd/122:05:271
22595993024,4cyclictest25-21ksoftirqd/121:44:051
22595993024,4cyclictest25-21ksoftirqd/121:37:511
22594993025,3cyclictest9-21ksoftirqd/022:11:040
22594993024,4cyclictest9-21ksoftirqd/021:29:560
22594993024,3cyclictest9-21ksoftirqd/021:20:120
22594993023,5cyclictest9-21ksoftirqd/023:14:300
22596992924,3cyclictest33-21ksoftirqd/220:45:002
22596992924,3cyclictest33-21ksoftirqd/219:59:212
22596992923,4cyclictest33-21ksoftirqd/220:50:302
22596992923,4cyclictest33-21ksoftirqd/220:50:302
22595992924,3cyclictest25-21ksoftirqd/121:16:011
22595992923,3cyclictest25-21ksoftirqd/119:30:061
22595992922,4cyclictest25-21ksoftirqd/119:25:521
22594992924,3cyclictest9-21ksoftirqd/023:45:240
22594992924,3cyclictest9-21ksoftirqd/022:53:110
22594992924,3cyclictest9-21ksoftirqd/022:36:030
22594992924,3cyclictest9-21ksoftirqd/000:10:380
22596992823,3cyclictest33-21ksoftirqd/200:08:492
22596992817,9cyclictest33-21ksoftirqd/220:45:232
22594992823,3cyclictest9-21ksoftirqd/021:41:060
22594992823,3cyclictest9-21ksoftirqd/020:54:530
22594992823,3cyclictest9-21ksoftirqd/020:54:530
22594992823,3cyclictest9-21ksoftirqd/020:44:460
22594992823,3cyclictest9-21ksoftirqd/000:29:470
22594992822,4cyclictest9-21ksoftirqd/022:25:180
22596992722,3cyclictest33-21ksoftirqd/222:10:252
22595992723,2cyclictest25-21ksoftirqd/121:00:151
22595992722,3cyclictest25-21ksoftirqd/122:30:131
22595992722,3cyclictest25-21ksoftirqd/121:10:121
22594992722,3cyclictest9-21ksoftirqd/020:09:520
22596992622,3cyclictest33-21ksoftirqd/220:25:182
22594992621,3cyclictest9-21ksoftirqd/023:17:090
22594992621,3cyclictest9-21ksoftirqd/019:46:010
22594992621,3cyclictest9-21ksoftirqd/019:35:110
22594992620,4cyclictest9-21ksoftirqd/021:17:560
22594992318,3cyclictest9-21ksoftirqd/019:41:080
2259499211,17cyclictest4316-21df20:20:130
22594991913,3cyclictest7746-21pluginstate20:25:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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