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2026-09-03 - 10:51
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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 Thu Sep 03, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204492204170,23sleep20-21swapper/219:05:472
204492204170,23sleep20-21swapper/219:05:472
206902202170,21sleep10-21swapper/119:08:541
206902202170,21sleep10-21swapper/119:08:541
138591202168,22phc2sys0-21swapper/319:05:333
138591202168,22phc2sys0-21swapper/319:05:333
206322198166,21sleep00-21swapper/019:08:100
206322198166,21sleep00-21swapper/019:08:100
179982870,27sleep341-21ksoftirqd/322:20:003
138491660,1ptp4l401ktimersoftd/320:16:313
138491650,1ptp4l401ktimersoftd/321:40:153
163022590,2sleep00-21swapper/023:20:190
138491580,1ptp4l401ktimersoftd/323:07:053
285892560,2sleep30-21swapper/319:25:013
21067995622,9cyclictest33-21ksoftirqd/200:35:212
276752550,2sleep327679-21unixbench_multi21:30:263
276752550,2sleep327679-21unixbench_multi21:30:263
21067995529,9cyclictest33-21ksoftirqd/219:25:182
138491550,1ptp4l401ktimersoftd/322:50:223
21067995429,9cyclictest33-21ksoftirqd/220:55:192
21067995325,8cyclictest33-21ksoftirqd/223:05:132
21067995226,9cyclictest33-21ksoftirqd/221:50:302
21067995222,7cyclictest33-21ksoftirqd/222:55:122
138491510,1ptp4l401ktimersoftd/321:26:573
21067995015,7cyclictest33-21ksoftirqd/223:52:092
21066995044,4cyclictest30328-21dump-pmu-power22:45:001
138491500,1ptp4l401ktimersoftd/323:48:063
138491490,1ptp4l401ktimersoftd/321:05:123
21067994724,9cyclictest33-21ksoftirqd/220:10:142
21067994619,8cyclictest33-21ksoftirqd/221:55:122
21067994516,7cyclictest33-21ksoftirqd/221:23:222
2106799445,5cyclictest33-21ksoftirqd/200:25:252
2106799444,8cyclictest33-21ksoftirqd/200:20:212
21067994427,9cyclictest33-21ksoftirqd/223:20:152
2106799442,5cyclictest33-21ksoftirqd/220:15:242
2106799434,6cyclictest33-21ksoftirqd/200:30:192
21067994326,9cyclictest33-21ksoftirqd/200:10:142
138491430,1ptp4l401ktimersoftd/319:15:493
138491430,0ptp4l401ktimersoftd/319:25:193
2106799426,5cyclictest33-21ksoftirqd/219:15:242
21067994237,3cyclictest18026-21latency_hist21:15:012
2106799422,5cyclictest33-21ksoftirqd/223:30:002
21067994221,9cyclictest33-21ksoftirqd/222:20:222
2106799420,8cyclictest321ktimersoftd/221:00:142
138491420,0ptp4l401ktimersoftd/321:35:233
138491420,0ptp4l401ktimersoftd/321:22:003
21067994129,11cyclictest33-21ksoftirqd/219:50:002
2106799412,5cyclictest33-21ksoftirqd/219:55:242
21067994117,5cyclictest33-21ksoftirqd/220:23:582
2106799403,5cyclictest33-21ksoftirqd/223:00:182
2106799403,3cyclictest33-21ksoftirqd/220:36:232
2106799402,7cyclictest33-21ksoftirqd/219:30:132
2106799394,5cyclictest33-21ksoftirqd/223:10:272
21067993922,10cyclictest33-21ksoftirqd/220:40:132
138491390,1ptp4l401ktimersoftd/323:29:253
21068993830,5cyclictest41-21ksoftirqd/321:00:123
2106799385,5cyclictest33-21ksoftirqd/219:38:542
2106799385,5cyclictest33-21ksoftirqd/200:15:252
2106799382,5cyclictest33-21ksoftirqd/222:50:432
2106799382,5cyclictest33-21ksoftirqd/220:00:262
2106799382,4cyclictest0-21swapper/222:00:132
2106799382,4cyclictest0-21swapper/222:00:122
2106799382,3cyclictest33-21ksoftirqd/221:45:232
21067993821,10cyclictest33-21ksoftirqd/223:45:232
21066993832,4cyclictest25-21ksoftirqd/121:43:241
138491380,0ptp4l401ktimersoftd/322:44:073
50798370,3rtkit-daemon29378-21irqstats21:35:190
2106799375,5cyclictest33-21ksoftirqd/221:40:212
2106799374,6cyclictest33-21ksoftirqd/222:05:172
2106799374,5cyclictest33-21ksoftirqd/223:28:072
2106799372,5cyclictest33-21ksoftirqd/219:50:232
2106799372,5cyclictest33-21ksoftirqd/219:50:232
2106799372,5cyclictest33-21ksoftirqd/200:05:262
21067993720,10cyclictest33-21ksoftirqd/222:45:142
2106799371,6cyclictest33-21ksoftirqd/220:31:542
21066993732,3cyclictest25-21ksoftirqd/122:25:011
21066993732,3cyclictest25-21ksoftirqd/121:25:001
21066993731,3cyclictest25-21ksoftirqd/122:00:001
21065993731,4cyclictest9-21ksoftirqd/021:23:530
21068993630,3cyclictest41-21ksoftirqd/319:55:003
21068993630,3cyclictest41-21ksoftirqd/319:55:003
21067993632,2cyclictest33-21ksoftirqd/220:45:212
21067993631,3cyclictest33-21ksoftirqd/220:05:192
2106799362,6cyclictest33-21ksoftirqd/222:10:152
2106799362,5cyclictest33-21ksoftirqd/219:14:092
2106799362,2cyclictest33-21ksoftirqd/219:40:382
21067993620,9cyclictest33-21ksoftirqd/221:25:192
2106799360,5cyclictest33-21ksoftirqd/223:40:172
21066993630,4cyclictest25-21ksoftirqd/122:05:101
21066993630,4cyclictest25-21ksoftirqd/119:24:341
21066993630,4cyclictest25-21ksoftirqd/100:27:191
21066993630,3cyclictest25-21ksoftirqd/121:40:011
21066993629,4cyclictest25-21ksoftirqd/123:36:081
21065993631,3cyclictest9-21ksoftirqd/022:45:080
21065993630,4cyclictest9-21ksoftirqd/022:25:000
21065993630,4cyclictest25327-21cron22:35:000
21068993529,4cyclictest41-21ksoftirqd/323:50:503
21068993529,4cyclictest41-21ksoftirqd/323:36:023
21068993517,15cyclictest15581-21cron00:25:003
2106799353,5cyclictest33-21ksoftirqd/222:16:202
21067993532,2cyclictest33-21ksoftirqd/222:25:142
21067993531,2cyclictest33-21ksoftirqd/222:35:232
21067993530,3cyclictest33-21ksoftirqd/222:30:132
21067993529,4cyclictest33-21ksoftirqd/200:00:322
2106799352,5cyclictest33-21ksoftirqd/221:30:372
2106799352,5cyclictest33-21ksoftirqd/221:30:372
2106799351,5cyclictest33-21ksoftirqd/221:05:172
21066993530,3cyclictest25-21ksoftirqd/100:20:161
21066993529,4cyclictest25-21ksoftirqd/122:49:541
21066993529,4cyclictest25-21ksoftirqd/119:34:061
21066993529,3cyclictest25-21ksoftirqd/123:55:121
21066993529,3cyclictest25-21ksoftirqd/121:00:181
21066993528,4cyclictest25-21ksoftirqd/123:50:191
21066993528,4cyclictest25-21ksoftirqd/121:51:251
21065993529,4cyclictest9-21ksoftirqd/022:27:590
21065993529,4cyclictest9-21ksoftirqd/020:13:400
21065993529,4cyclictest9-21ksoftirqd/019:13:020
21065993528,4cyclictest9-21ksoftirqd/021:20:000
21068993429,3cyclictest41-21ksoftirqd/323:30:033
21068993428,4cyclictest41-21ksoftirqd/321:13:243
21068993428,4cyclictest41-21ksoftirqd/320:00:513
21068993428,4cyclictest41-21ksoftirqd/319:49:123
21068993427,4cyclictest41-21ksoftirqd/320:35:143
21068993427,4cyclictest41-21ksoftirqd/300:35:313
2106799344,4cyclictest33-21ksoftirqd/222:40:202
21067993431,2cyclictest33-21ksoftirqd/223:15:232
21067993429,3cyclictest33-21ksoftirqd/219:20:162
2106799342,4cyclictest33-21ksoftirqd/223:57:202
21067993411,7cyclictest33-21ksoftirqd/221:15:142
21066993428,4cyclictest25-21ksoftirqd/122:56:481
21066993428,4cyclictest25-21ksoftirqd/121:48:131
21066993428,4cyclictest25-21ksoftirqd/121:28:221
21066993428,4cyclictest25-21ksoftirqd/120:45:351
21066993428,4cyclictest25-21ksoftirqd/100:08:291
21066993427,4cyclictest25-21ksoftirqd/123:30:501
21066993427,4cyclictest25-21ksoftirqd/119:40:001
21065993429,3cyclictest9-21ksoftirqd/021:25:110
21065993428,4cyclictest9-21ksoftirqd/023:40:320
21065993428,4cyclictest9-21ksoftirqd/023:08:270
21065993428,4cyclictest9-21ksoftirqd/021:44:060
21065993428,4cyclictest9-21ksoftirqd/020:20:100
21065993428,4cyclictest9-21ksoftirqd/019:20:450
21065993428,4cyclictest9-21ksoftirqd/000:11:570
138491340,0ptp4l401ktimersoftd/323:20:283
138491340,0ptp4l401ktimersoftd/319:55:263
50798330,1rtkit-daemon0-21swapper/123:46:571
21068993328,3cyclictest41-21ksoftirqd/323:40:413
21068993327,4cyclictest41-21ksoftirqd/322:11:153
21068993327,4cyclictest41-21ksoftirqd/320:25:023
21068993327,4cyclictest41-21ksoftirqd/319:44:153
21068993327,4cyclictest41-21ksoftirqd/319:12:483
21068993327,3cyclictest41-21ksoftirqd/322:55:113
21068993326,4cyclictest41-21ksoftirqd/322:35:283
21067993330,2cyclictest33-21ksoftirqd/223:40:002
2106799331,5cyclictest33-21ksoftirqd/221:39:152
21066993328,3cyclictest25-21ksoftirqd/122:39:501
21066993328,3cyclictest25-21ksoftirqd/120:34:151
21066993328,3cyclictest25-21ksoftirqd/120:13:291
21066993328,3cyclictest25-21ksoftirqd/119:10:461
21066993327,4cyclictest25-21ksoftirqd/122:31:211
21066993327,4cyclictest25-21ksoftirqd/122:28:051
21066993327,4cyclictest25-21ksoftirqd/120:29:051
21066993327,4cyclictest25-21ksoftirqd/120:05:421
21066993326,5cyclictest25-21ksoftirqd/122:51:271
21066993326,4cyclictest25-21ksoftirqd/119:54:441
21066993326,4cyclictest25-21ksoftirqd/119:54:431
21065993328,3cyclictest9-21ksoftirqd/023:55:530
21065993328,3cyclictest9-21ksoftirqd/023:00:560
21065993328,3cyclictest9-21ksoftirqd/020:09:460
21065993328,3cyclictest9-21ksoftirqd/020:00:110
21065993327,4cyclictest9-21ksoftirqd/020:59:090
21065993327,4cyclictest9-21ksoftirqd/020:51:260
21065993327,4cyclictest9-21ksoftirqd/019:45:550
21065993327,4cyclictest9-21ksoftirqd/019:44:390
21065993327,4cyclictest9-21ksoftirqd/000:09:130
138491330,1ptp4l401ktimersoftd/322:34:003
21068993226,4cyclictest41-21ksoftirqd/321:49:513
21068993226,4cyclictest41-21ksoftirqd/300:32:343
21068993226,3cyclictest41-21ksoftirqd/320:45:113
21067993229,2cyclictest33-21ksoftirqd/220:25:212
21067993227,3cyclictest33-21ksoftirqd/220:50:132
21066993227,4cyclictest25-21ksoftirqd/120:42:411
21066993227,3cyclictest25-21ksoftirqd/123:28:401
21066993227,3cyclictest25-21ksoftirqd/123:20:391
21066993227,3cyclictest25-21ksoftirqd/123:16:131
21066993227,3cyclictest25-21ksoftirqd/100:30:311
21066993226,4cyclictest25-21ksoftirqd/121:09:251
21066993226,4cyclictest25-21ksoftirqd/100:39:301
21065993227,3cyclictest9-21ksoftirqd/021:48:110
21065993227,3cyclictest9-21ksoftirqd/020:39:190
21065993227,3cyclictest9-21ksoftirqd/019:36:260
21065993227,3cyclictest9-21ksoftirqd/000:29:470
21065993226,4cyclictest9-21ksoftirqd/023:25:360
21065993226,4cyclictest9-21ksoftirqd/023:10:150
21065993226,4cyclictest9-21ksoftirqd/022:50:550
21065993226,4cyclictest9-21ksoftirqd/022:14:070
21065993226,4cyclictest9-21ksoftirqd/022:03:490
21065993226,4cyclictest9-21ksoftirqd/022:03:480
21065993226,4cyclictest9-21ksoftirqd/020:41:400
21065993226,4cyclictest9-21ksoftirqd/020:18:460
21065993226,4cyclictest9-21ksoftirqd/019:52:010
21065993226,4cyclictest9-21ksoftirqd/019:52:010
21065993226,4cyclictest9-21ksoftirqd/019:29:140
21068993126,3cyclictest41-21ksoftirqd/300:04:543
21068993125,4cyclictest41-21ksoftirqd/322:22:293
21068993125,4cyclictest41-21ksoftirqd/322:02:063
21068993125,4cyclictest41-21ksoftirqd/322:02:063
21068993125,4cyclictest41-21ksoftirqd/320:20:043
21068993125,3cyclictest41-21ksoftirqd/322:25:103
21068993124,4cyclictest41-21ksoftirqd/323:17:003
21068993124,4cyclictest41-21ksoftirqd/300:28:293
21066993126,3cyclictest25-21ksoftirqd/123:06:501
21066993126,3cyclictest25-21ksoftirqd/119:40:131
21066993126,3cyclictest25-21ksoftirqd/119:16:391
21066993125,4cyclictest25-21ksoftirqd/123:44:581
21066993125,4cyclictest25-21ksoftirqd/121:11:491
21066993125,3cyclictest25-21ksoftirqd/121:15:101
21066993125,3cyclictest25-21ksoftirqd/120:35:141
21065993126,3cyclictest9-21ksoftirqd/023:54:400
21065993126,3cyclictest9-21ksoftirqd/023:17:010
21065993126,3cyclictest9-21ksoftirqd/022:38:380
21065993126,3cyclictest9-21ksoftirqd/021:12:140
21065993126,3cyclictest9-21ksoftirqd/021:06:250
21065993126,3cyclictest9-21ksoftirqd/000:34:040
21065993126,3cyclictest9-21ksoftirqd/000:16:470
21065993126,3cyclictest9-21ksoftirqd/000:03:010
21065993125,4cyclictest9-21ksoftirqd/023:36:150
21065993125,4cyclictest9-21ksoftirqd/019:56:550
21065993125,4cyclictest9-21ksoftirqd/000:36:210
138491310,0ptp4l401ktimersoftd/322:46:553
21068993025,3cyclictest41-21ksoftirqd/320:52:343
21068993025,3cyclictest41-21ksoftirqd/320:40:083
21066993025,3cyclictest25-21ksoftirqd/120:57:161
21066993025,3cyclictest25-21ksoftirqd/120:16:141
21066993025,3cyclictest25-21ksoftirqd/120:04:581
21066993024,4cyclictest25-21ksoftirqd/123:04:351
21066993023,4cyclictest25-21ksoftirqd/122:15:001
21065993025,3cyclictest9-21ksoftirqd/023:34:180
21065993025,3cyclictest9-21ksoftirqd/021:04:120
21065993025,3cyclictest9-21ksoftirqd/020:47:250
21065993024,4cyclictest9-21ksoftirqd/023:48:590
21065993024,3cyclictest9-21ksoftirqd/022:09:050
21068992925,2cyclictest41-21ksoftirqd/319:38:023
21068992924,3cyclictest41-21ksoftirqd/323:10:163
21068992924,3cyclictest41-21ksoftirqd/323:03:293
21068992924,3cyclictest41-21ksoftirqd/320:05:053
21066992923,4cyclictest25-21ksoftirqd/123:12:251
21066992923,4cyclictest25-21ksoftirqd/119:58:481
21066992922,5cyclictest25-21ksoftirqd/120:21:031
21065992924,3cyclictest9-21ksoftirqd/021:57:370
21065992924,3cyclictest9-21ksoftirqd/020:34:010
21065992924,3cyclictest9-21ksoftirqd/020:27:560
21065992923,4cyclictest9-21ksoftirqd/019:17:520
21068992823,3cyclictest41-21ksoftirqd/321:54:483
21068992823,3cyclictest41-21ksoftirqd/319:35:003
21068992822,4cyclictest41-21ksoftirqd/321:57:133
21068992822,4cyclictest41-21ksoftirqd/321:16:213
21066992823,3cyclictest25-21ksoftirqd/119:45:211
21066992823,3cyclictest25-21ksoftirqd/100:00:391
21066992821,4cyclictest25-21ksoftirqd/100:16:001
21065992823,3cyclictest9-21ksoftirqd/021:54:330
21065992823,3cyclictest9-21ksoftirqd/021:33:180
21065992823,3cyclictest9-21ksoftirqd/021:33:180
21065992822,4cyclictest9-21ksoftirqd/000:24:370
138491280,0ptp4l401ktimersoftd/323:56:413
138491280,0ptp4l401ktimersoftd/320:33:003
138491280,0ptp4l401ktimersoftd/320:13:193
21068992722,3cyclictest41-21ksoftirqd/320:58:003
21066992723,2cyclictest25-21ksoftirqd/120:50:201
21066992722,3cyclictest25-21ksoftirqd/122:15:171
21066992722,3cyclictest25-21ksoftirqd/119:25:431
21065992722,3cyclictest9-21ksoftirqd/019:30:430
138491270,0ptp4l401ktimersoftd/300:08:023
21066992620,4cyclictest25-21ksoftirqd/100:11:461
21066992620,3cyclictest25-21ksoftirqd/122:00:251
21066992620,3cyclictest25-21ksoftirqd/122:00:251
21068992520,3cyclictest41-21ksoftirqd/300:16:053
21068992519,4cyclictest41-21ksoftirqd/322:09:043
21066992519,4cyclictest25-21ksoftirqd/121:33:491
21066992519,4cyclictest25-21ksoftirqd/121:33:481
21065992520,3cyclictest9-21ksoftirqd/022:18:180
138491250,8ptp4l401ktimersoftd/300:11:183
21065992216,3cyclictest9-21ksoftirqd/022:40:190
21065992014,4cyclictest9-21ksoftirqd/022:56:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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