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2026-08-13 - 09:43
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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 rackdslot2.osadl.org (updated Thu Aug 13, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
280442237170,22sleep10-21swapper/119:08:481
281182235169,22sleep30-21swapper/319:09:463
260102206173,22sleep20-21swapper/219:05:082
279862202169,21sleep00-21swapper/019:08:030
407121590,4sleep12843799cyclictest23:55:231
1449821460,7sleep02843699cyclictest22:00:480
2843899717,62cyclictest19883-21kworker/2:220:25:252
104832580,2sleep30-21swapper/300:10:133
139291560,1ptp4l401ktimersoftd/323:38:313
139291550,1ptp4l401ktimersoftd/319:22:563
2843899536,45cyclictest11221-21kworker/2:223:20:252
160122530,2sleep30-21swapper/300:20:203
160122530,2sleep30-21swapper/300:20:203
139291490,1ptp4l401ktimersoftd/323:01:043
28438994728,16cyclictest33-21ksoftirqd/223:05:002
2843799471,43cyclictest2951-21cron21:40:001
139291460,1ptp4l0-21swapper/321:45:293
139291460,1ptp4l0-21swapper/321:45:293
41298450,1rtkit-daemon0-21swapper/121:03:061
139291450,0ptp4l401ktimersoftd/319:35:023
28436994439,3cyclictest32642-21cron23:50:000
139291440,0ptp4l401ktimersoftd/322:35:153
41298430,2rtkit-daemon0-21swapper/120:19:111
28439994338,3cyclictest41-21ksoftirqd/320:20:013
2814524232,3sleep10-21swapper/119:10:001
139291420,0ptp4l401ktimersoftd/323:51:483
139291420,0ptp4l401ktimersoftd/322:24:353
139291420,0ptp4l401ktimersoftd/320:42:293
139291420,0ptp4l401ktimersoftd/319:33:383
41298410,4rtkit-daemon13057-21ls23:05:271
41298410,3rtkit-daemon19864-21apt-get22:15:101
41298410,3rtkit-daemon19864-21apt-get22:15:101
28439994136,3cyclictest41-21ksoftirqd/319:55:003
41298400,7rtkit-daemon0-21swapper/019:50:580
41298400,4rtkit-daemon3200-21irqstats20:30:221
28439993934,3cyclictest41-21ksoftirqd/323:20:003
28439993834,3cyclictest41-21ksoftirqd/321:25:173
28439993833,3cyclictest41-21ksoftirqd/322:20:003
28439993833,3cyclictest41-21ksoftirqd/322:19:593
28439993832,4cyclictest41-21ksoftirqd/323:05:463
2843899388,28cyclictest11221-21kworker/2:223:10:252
28438993832,4cyclictest33-21ksoftirqd/219:49:202
28436993831,4cyclictest9-21ksoftirqd/019:43:400
28439993733,2cyclictest41-21ksoftirqd/323:25:003
28439993732,3cyclictest41-21ksoftirqd/321:15:193
28439993731,4cyclictest9983-21cron00:10:013
28439993731,4cyclictest41-21ksoftirqd/322:56:113
28439993730,4cyclictest41-21ksoftirqd/320:31:173
28438993732,3cyclictest33-21ksoftirqd/223:50:302
28438993731,4cyclictest33-21ksoftirqd/222:09:052
28438993731,4cyclictest33-21ksoftirqd/221:34:062
28438993731,4cyclictest33-21ksoftirqd/221:07:022
28438993731,4cyclictest33-21ksoftirqd/219:33:472
28438993715,21cyclictest0-21swapper/223:35:152
28437993731,4cyclictest25-21ksoftirqd/121:09:101
28436993731,4cyclictest9-21ksoftirqd/022:28:400
28436993731,4cyclictest9-21ksoftirqd/020:20:430
28439993631,3cyclictest41-21ksoftirqd/323:49:593
28439993631,3cyclictest41-21ksoftirqd/321:59:553
28439993631,3cyclictest41-21ksoftirqd/321:44:063
28439993631,3cyclictest41-21ksoftirqd/319:20:003
28439993631,3cyclictest41-21ksoftirqd/300:16:313
28439993630,4cyclictest41-21ksoftirqd/322:05:413
28439993630,4cyclictest41-21ksoftirqd/320:04:573
28439993625,9cyclictest41-21ksoftirqd/321:00:233
28438993631,3cyclictest33-21ksoftirqd/223:45:102
28438993630,4cyclictest33-21ksoftirqd/223:16:082
28438993630,4cyclictest33-21ksoftirqd/221:21:232
28438993630,4cyclictest33-21ksoftirqd/220:53:262
28438993630,4cyclictest33-21ksoftirqd/220:34:092
28438993630,4cyclictest33-21ksoftirqd/220:23:222
28438993630,4cyclictest33-21ksoftirqd/220:01:272
28437993631,3cyclictest25-21ksoftirqd/119:41:001
28437993630,4cyclictest25-21ksoftirqd/123:34:521
28437993630,4cyclictest25-21ksoftirqd/122:02:221
28437993630,4cyclictest25-21ksoftirqd/121:27:551
28437993630,4cyclictest25-21ksoftirqd/119:46:381
28437993629,4cyclictest25-21ksoftirqd/122:35:271
28437993629,4cyclictest25-21ksoftirqd/122:07:311
28436993630,4cyclictest9-21ksoftirqd/023:08:320
28436993630,4cyclictest9-21ksoftirqd/021:00:430
28436993630,4cyclictest9-21ksoftirqd/020:56:170
28436993630,4cyclictest9-21ksoftirqd/019:38:340
28436993630,4cyclictest9-21ksoftirqd/000:01:030
28436993629,4cyclictest9-21ksoftirqd/020:01:400
28439993530,3cyclictest41-21ksoftirqd/321:21:223
28439993530,3cyclictest41-21ksoftirqd/320:57:003
28439993530,3cyclictest41-21ksoftirqd/320:25:013
28439993530,3cyclictest41-21ksoftirqd/319:45:403
28439993529,4cyclictest41-21ksoftirqd/319:12:383
28439993529,4cyclictest41-21ksoftirqd/300:36:363
2843899353,29cyclictest13609-21latency_hist23:10:012
28438993530,3cyclictest33-21ksoftirqd/222:34:392
28438993530,3cyclictest33-21ksoftirqd/220:37:542
28438993530,3cyclictest33-21ksoftirqd/200:25:042
28438993529,4cyclictest33-21ksoftirqd/223:44:492
28438993529,4cyclictest33-21ksoftirqd/222:35:382
28438993529,4cyclictest33-21ksoftirqd/222:29:142
28438993529,4cyclictest33-21ksoftirqd/221:18:302
28438993529,4cyclictest33-21ksoftirqd/220:15:312
28438993529,4cyclictest33-21ksoftirqd/219:56:272
28438993529,4cyclictest33-21ksoftirqd/219:18:122
28438993529,4cyclictest33-21ksoftirqd/200:31:422
28437993530,3cyclictest25-21ksoftirqd/123:51:451
28437993530,3cyclictest25-21ksoftirqd/100:07:261
28437993529,4cyclictest25-21ksoftirqd/123:10:501
28437993529,4cyclictest25-21ksoftirqd/123:02:071
28437993529,4cyclictest25-21ksoftirqd/120:26:381
28437993528,4cyclictest25-21ksoftirqd/120:07:001
28437993528,4cyclictest25-21ksoftirqd/100:21:501
28437993528,4cyclictest25-21ksoftirqd/100:21:501
28436993529,4cyclictest9-21ksoftirqd/023:57:500
28436993529,4cyclictest9-21ksoftirqd/022:15:280
28436993529,4cyclictest9-21ksoftirqd/022:15:280
28436993529,3cyclictest9-21ksoftirqd/020:49:360
28436993529,3cyclictest9-21ksoftirqd/020:49:360
28436993528,4cyclictest9-21ksoftirqd/020:10:320
41298340,2rtkit-daemon0-21swapper/122:26:451
28439993429,3cyclictest41-21ksoftirqd/323:34:183
28439993429,3cyclictest41-21ksoftirqd/321:09:003
28439993429,3cyclictest41-21ksoftirqd/320:25:193
28439993429,3cyclictest41-21ksoftirqd/320:09:353
28439993429,3cyclictest41-21ksoftirqd/319:30:003
28439993429,3cyclictest41-21ksoftirqd/300:00:193
28439993428,4cyclictest41-21ksoftirqd/323:26:163
28439993428,4cyclictest41-21ksoftirqd/323:11:123
28439993428,4cyclictest41-21ksoftirqd/322:48:173
28439993428,4cyclictest41-21ksoftirqd/319:44:553
28438993429,3cyclictest33-21ksoftirqd/222:43:152
28438993429,3cyclictest33-21ksoftirqd/222:13:462
28438993429,3cyclictest33-21ksoftirqd/221:57:192
28438993429,3cyclictest33-21ksoftirqd/221:37:352
28438993428,4cyclictest33-21ksoftirqd/221:14:412
28438993428,4cyclictest33-21ksoftirqd/221:01:332
28438993428,4cyclictest33-21ksoftirqd/220:56:032
28438993428,4cyclictest33-21ksoftirqd/200:36:162
28437993429,3cyclictest25-21ksoftirqd/119:28:031
28437993428,4cyclictest25-21ksoftirqd/121:16:081
28437993428,4cyclictest25-21ksoftirqd/120:04:591
28437993428,4cyclictest25-21ksoftirqd/119:56:251
28437993428,4cyclictest25-21ksoftirqd/119:38:121
28437993428,4cyclictest25-21ksoftirqd/100:10:351
28437993427,4cyclictest25-21ksoftirqd/100:36:021
28437993426,5cyclictest25-21ksoftirqd/123:49:081
28436993428,3cyclictest9-21ksoftirqd/023:36:260
28436993428,3cyclictest9-21ksoftirqd/023:19:550
28436993428,3cyclictest9-21ksoftirqd/020:07:530
28436993427,4cyclictest9-21ksoftirqd/022:45:120
28436993427,4cyclictest9-21ksoftirqd/021:20:560
28436993427,4cyclictest9-21ksoftirqd/000:15:150
28439993329,3cyclictest41-21ksoftirqd/321:50:193
28439993329,3cyclictest41-21ksoftirqd/321:35:143
28439993328,3cyclictest41-21ksoftirqd/322:32:043
28439993327,4cyclictest41-21ksoftirqd/322:54:153
28439993327,4cyclictest41-21ksoftirqd/320:48:263
28439993327,4cyclictest41-21ksoftirqd/320:48:263
28439993327,3cyclictest12719-21egrep22:00:143
28439993326,4cyclictest41-21ksoftirqd/321:12:403
28438993328,3cyclictest33-21ksoftirqd/222:19:182
28438993328,3cyclictest33-21ksoftirqd/222:19:182
28438993327,4cyclictest33-21ksoftirqd/223:56:242
28438993327,4cyclictest33-21ksoftirqd/223:33:372
28438993327,4cyclictest33-21ksoftirqd/222:45:472
28438993327,4cyclictest33-21ksoftirqd/219:53:102
28438993327,4cyclictest33-21ksoftirqd/219:36:482
28438993327,4cyclictest33-21ksoftirqd/219:12:382
28438993327,4cyclictest33-21ksoftirqd/200:17:332
28438993327,4cyclictest33-21ksoftirqd/200:07:112
28438993326,4cyclictest33-21ksoftirqd/222:57:192
28438993312,3cyclictest6543-21ls21:45:182
28438993312,3cyclictest6543-21ls21:45:182
28437993328,3cyclictest25-21ksoftirqd/123:35:521
28437993328,3cyclictest25-21ksoftirqd/123:25:131
28437993328,3cyclictest25-21ksoftirqd/122:41:291
28437993328,3cyclictest25-21ksoftirqd/120:42:291
28437993328,3cyclictest25-21ksoftirqd/100:18:201
28437993327,4cyclictest25-21ksoftirqd/120:37:091
28437993327,4cyclictest25-21ksoftirqd/120:10:091
28437993327,4cyclictest25-21ksoftirqd/100:01:411
28437993327,3cyclictest25-21ksoftirqd/121:23:581
28437993327,3cyclictest25-21ksoftirqd/100:32:141
28437993326,4cyclictest25-21ksoftirqd/122:57:571
28437993312,20cyclictest7561-21kworker/1:020:51:541
28436993328,3cyclictest9-21ksoftirqd/023:25:050
28436993328,3cyclictest9-21ksoftirqd/022:10:000
28436993328,3cyclictest9-21ksoftirqd/021:16:190
28436993328,3cyclictest9-21ksoftirqd/019:15:370
28436993328,3cyclictest9-21ksoftirqd/000:20:330
28436993328,3cyclictest9-21ksoftirqd/000:20:320
28436993327,4cyclictest9-21ksoftirqd/021:27:030
28436993327,4cyclictest9-21ksoftirqd/020:35:390
28436993327,4cyclictest9-21ksoftirqd/020:27:170
28436993327,4cyclictest9-21ksoftirqd/019:29:240
28436993327,4cyclictest9-21ksoftirqd/000:34:530
28436993327,3cyclictest9-21ksoftirqd/021:57:230
28436993326,4cyclictest9-21ksoftirqd/021:49:090
28436993326,4cyclictest9-21ksoftirqd/021:49:090
28436993326,4cyclictest9-21ksoftirqd/000:12:340
28439993226,4cyclictest41-21ksoftirqd/323:59:143
28439993226,4cyclictest41-21ksoftirqd/320:38:313
28439993226,4cyclictest41-21ksoftirqd/300:32:563
28438993227,3cyclictest33-21ksoftirqd/200:00:382
28438993226,4cyclictest33-21ksoftirqd/222:50:052
28438993226,4cyclictest33-21ksoftirqd/221:52:482
28438993226,4cyclictest33-21ksoftirqd/221:44:332
28438993226,4cyclictest33-21ksoftirqd/220:06:012
2843899322,28cyclictest18445-21kworker/2:121:29:572
28438993213,3cyclictest15293-21sh00:20:152
28438993213,3cyclictest15293-21sh00:20:152
28437993227,3cyclictest25-21ksoftirqd/120:46:421
28437993227,3cyclictest25-21ksoftirqd/120:46:421
28437993227,3cyclictest25-21ksoftirqd/119:30:291
28437993226,3cyclictest25-21ksoftirqd/122:30:511
28436993227,3cyclictest9-21ksoftirqd/023:10:100
28436993227,3cyclictest9-21ksoftirqd/021:10:110
28436993227,3cyclictest9-21ksoftirqd/020:30:090
28436993227,3cyclictest9-21ksoftirqd/000:38:500
28436993226,4cyclictest9-21ksoftirqd/022:59:010
28436993226,4cyclictest9-21ksoftirqd/000:27:070
28439993127,3cyclictest41-21ksoftirqd/320:10:123
28439993126,3cyclictest41-21ksoftirqd/300:27:483
28439993125,4cyclictest41-21ksoftirqd/322:26:073
28439993125,3cyclictest41-21ksoftirqd/322:15:003
28438993126,3cyclictest33-21ksoftirqd/222:02:472
28438993126,3cyclictest33-21ksoftirqd/220:49:432
28438993126,3cyclictest33-21ksoftirqd/220:49:432
2843899310,29cyclictest19883-21kworker/2:220:11:412
28437993126,3cyclictest25-21ksoftirqd/100:30:001
28437993125,4cyclictest25-21ksoftirqd/119:17:171
28436993126,3cyclictest9-21ksoftirqd/022:42:160
28436993126,3cyclictest9-21ksoftirqd/021:41:100
28436993126,3cyclictest9-21ksoftirqd/020:16:010
28436993126,3cyclictest9-21ksoftirqd/019:34:530
28436993126,3cyclictest9-21ksoftirqd/019:10:390
28436993125,4cyclictest9-21ksoftirqd/021:31:440
28436993125,3cyclictest9-21ksoftirqd/021:52:320
28436993125,3cyclictest9-21ksoftirqd/021:38:090
2843899301,28cyclictest11221-21kworker/2:200:14:202
28437993025,3cyclictest25-21ksoftirqd/121:30:111
28437993025,3cyclictest25-21ksoftirqd/120:24:581
28437993025,3cyclictest25-21ksoftirqd/119:25:001
28437993024,4cyclictest25-21ksoftirqd/123:19:161
28436993025,3cyclictest9-21ksoftirqd/023:53:330
28436993025,3cyclictest9-21ksoftirqd/022:10:100
28436993025,3cyclictest9-21ksoftirqd/019:45:320
28436993024,4cyclictest9-21ksoftirqd/022:37:390
28436993023,4cyclictest9-21ksoftirqd/023:43:580
28439992925,2cyclictest41-21ksoftirqd/323:40:263
28439992924,3cyclictest41-21ksoftirqd/321:34:383
28439992924,3cyclictest41-21ksoftirqd/319:56:033
28439992923,4cyclictest41-21ksoftirqd/322:44:243
28438992924,3cyclictest33-21ksoftirqd/219:40:432
28438992924,3cyclictest33-21ksoftirqd/219:29:322
28438992923,4cyclictest33-21ksoftirqd/222:21:442
28438992923,4cyclictest33-21ksoftirqd/220:40:552
28438992923,4cyclictest33-21ksoftirqd/219:20:032
2843899290,28cyclictest11221-21kworker/2:223:26:252
28437992923,4cyclictest25-21ksoftirqd/120:57:311
28437992922,4cyclictest25-21ksoftirqd/121:40:591
28436992924,3cyclictest9-21ksoftirqd/023:01:500
28436992924,3cyclictest9-21ksoftirqd/022:22:550
28439992823,3cyclictest41-21ksoftirqd/320:50:183
28437992822,4cyclictest25-21ksoftirqd/123:42:421
28437992822,3cyclictest25-21ksoftirqd/121:57:491
28436992823,3cyclictest9-21ksoftirqd/022:53:440
28437992722,3cyclictest25-21ksoftirqd/123:20:331
28437992722,3cyclictest25-21ksoftirqd/121:45:571
28437992722,3cyclictest25-21ksoftirqd/121:45:571
28437992721,4cyclictest25-21ksoftirqd/122:24:201
28436992722,3cyclictest9-21ksoftirqd/020:40:580
28436992721,4cyclictest9-21ksoftirqd/020:54:250
28436992721,4cyclictest9-21ksoftirqd/000:06:170
28437992621,3cyclictest25-21ksoftirqd/121:53:101
28437992621,3cyclictest25-21ksoftirqd/121:15:001
28437992620,4cyclictest25-21ksoftirqd/122:14:211
28436992621,3cyclictest9-21ksoftirqd/021:05:110
28436992519,4cyclictest9-21ksoftirqd/023:20:450
28436992519,4cyclictest9-21ksoftirqd/019:22:460
28436992419,3cyclictest9-21ksoftirqd/019:55:050
2843799231,20cyclictest184-21jbd2/mmcblk1p1-22:50:151
28436992318,3cyclictest9-21ksoftirqd/022:31:170
28437992217,3cyclictest25-21ksoftirqd/122:46:351
28437992217,3cyclictest25-21ksoftirqd/119:52:401
28436992015,3cyclictest9-21ksoftirqd/023:31:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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