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2025-12-14 - 09:30
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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 highest latencies:
System rackdslot4.osadl.org (updated Sun Dec 14, 2025 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41122212179,22sleep10-21swapper/119:07:531
138591211177,22phc2sys0-21swapper/319:05:423
40112208174,22sleep20-21swapper/219:06:412
41042207175,21sleep00-21swapper/019:07:480
427728866,12sleep00-21swapper/019:10:010
138491880,1ptp4l8085-21meminfo23:35:293
26052640,2sleep30-21swapper/300:30:273
118052640,5sleep341-21ksoftirqd/321:35:013
138491590,1ptp4l401ktimersoftd/300:36:103
155232560,7sleep0456999cyclictest22:45:250
18852550,4sleep31887-21latency_hist23:25:003
18852550,4sleep31887-21latency_hist23:25:003
4571994627,17cyclictest33-21ksoftirqd/219:24:212
4570994539,3cyclictest19043-21ls00:00:001
138491440,0ptp4l401ktimersoftd/300:17:043
138491430,0ptp4l401ktimersoftd/321:00:013
138491430,0ptp4l401ktimersoftd/319:43:543
4570994235,4cyclictest14242-21cron21:40:001
138491420,1ptp4l401ktimersoftd/300:21:143
138491420,1ptp4l401ktimersoftd/300:21:143
4569994127,12cyclictest9-21ksoftirqd/019:25:180
138491410,0ptp4l401ktimersoftd/323:45:203
4571993833,3cyclictest33-21ksoftirqd/222:05:012
138491380,0ptp4l401ktimersoftd/319:45:323
4571993731,4cyclictest33-21ksoftirqd/220:38:272
4572993630,4cyclictest41-21ksoftirqd/323:12:533
4572993630,4cyclictest41-21ksoftirqd/321:07:273
4572993630,4cyclictest41-21ksoftirqd/319:55:223
4572993630,4cyclictest41-21ksoftirqd/319:31:493
4571993630,4cyclictest33-21ksoftirqd/222:55:392
4571993630,4cyclictest33-21ksoftirqd/221:41:572
4570993630,4cyclictest25-21ksoftirqd/122:23:241
4569993630,4cyclictest9-21ksoftirqd/022:26:410
4569993612,3cyclictest8992-21sed22:30:340
50798350,11rtkit-daemon1319-21snmpd19:25:413
48662350,6sleep1457099cyclictest19:10:161
4572993530,3cyclictest41-21ksoftirqd/322:32:343
4572993530,3cyclictest41-21ksoftirqd/321:13:183
4572993529,4cyclictest41-21ksoftirqd/321:47:563
4572993529,4cyclictest41-21ksoftirqd/321:00:003
4572993529,4cyclictest41-21ksoftirqd/320:09:403
4572993529,4cyclictest41-21ksoftirqd/320:04:473
4572993529,4cyclictest41-21ksoftirqd/319:53:353
4571993530,3cyclictest33-21ksoftirqd/220:20:202
4571993529,4cyclictest33-21ksoftirqd/222:45:362
4571993529,4cyclictest33-21ksoftirqd/221:23:042
4571993529,4cyclictest33-21ksoftirqd/221:11:052
4571993528,4cyclictest33-21ksoftirqd/219:40:152
4570993530,3cyclictest6725-21cron23:35:011
4570993529,4cyclictest25-21ksoftirqd/123:18:451
4570993529,4cyclictest25-21ksoftirqd/122:15:191
4569993529,4cyclictest9-21ksoftirqd/021:03:160
4569993529,4cyclictest9-21ksoftirqd/019:52:200
138491350,0ptp4l401ktimersoftd/320:40:203
4572993429,3cyclictest41-21ksoftirqd/323:33:273
4572993429,3cyclictest41-21ksoftirqd/320:46:433
4572993429,3cyclictest41-21ksoftirqd/320:16:223
4572993428,4cyclictest41-21ksoftirqd/322:58:173
4572993428,4cyclictest41-21ksoftirqd/321:41:393
4572993428,4cyclictest41-21ksoftirqd/321:27:553
4572993428,4cyclictest41-21ksoftirqd/320:31:103
4571993428,4cyclictest33-21ksoftirqd/222:29:162
4571993428,4cyclictest33-21ksoftirqd/221:54:012
4571993428,4cyclictest33-21ksoftirqd/221:26:372
4571993428,4cyclictest33-21ksoftirqd/200:08:322
4571993428,3cyclictest33-21ksoftirqd/220:00:182
4570993428,4cyclictest25-21ksoftirqd/122:09:201
4570993428,4cyclictest25-21ksoftirqd/120:47:341
4570993428,4cyclictest25-21ksoftirqd/120:37:461
4570993428,4cyclictest25-21ksoftirqd/120:19:371
4570993428,4cyclictest25-21ksoftirqd/119:38:371
4570993428,4cyclictest25-21ksoftirqd/100:39:401
4570993427,4cyclictest25-21ksoftirqd/121:00:231
4569993429,3cyclictest9-21ksoftirqd/021:40:180
4569993429,3cyclictest9-21ksoftirqd/020:50:210
4569993429,3cyclictest9-21ksoftirqd/020:30:220
138491340,0ptp4l401ktimersoftd/300:25:343
4572993328,3cyclictest41-21ksoftirqd/322:10:303
4572993328,3cyclictest41-21ksoftirqd/321:35:413
4572993328,3cyclictest138491ptp4l20:50:213
4572993327,4cyclictest41-21ksoftirqd/323:03:093
4572993327,4cyclictest41-21ksoftirqd/322:47:303
4572993327,4cyclictest41-21ksoftirqd/320:21:113
4571993328,3cyclictest33-21ksoftirqd/223:11:122
4571993328,3cyclictest33-21ksoftirqd/222:20:222
4571993328,3cyclictest33-21ksoftirqd/222:16:242
4571993328,3cyclictest33-21ksoftirqd/222:09:302
4571993328,3cyclictest33-21ksoftirqd/219:34:212
4571993327,4cyclictest33-21ksoftirqd/223:19:142
4571993327,4cyclictest33-21ksoftirqd/220:53:032
4571993327,4cyclictest33-21ksoftirqd/200:21:242
4571993327,4cyclictest33-21ksoftirqd/200:21:242
4570993327,4cyclictest25-21ksoftirqd/121:57:461
4570993327,4cyclictest25-21ksoftirqd/100:20:021
4570993327,4cyclictest25-21ksoftirqd/100:20:021
4570993327,3cyclictest25-21ksoftirqd/123:30:001
4570993326,5cyclictest25-21ksoftirqd/123:10:291
4569993329,3cyclictest9-21ksoftirqd/021:49:540
4569993328,3cyclictest9-21ksoftirqd/021:53:220
4569993328,3cyclictest9-21ksoftirqd/019:33:070
4569993328,3cyclictest9-21ksoftirqd/000:18:570
4569993327,4cyclictest9-21ksoftirqd/021:22:580
4569993327,4cyclictest9-21ksoftirqd/020:39:540
4569993327,4cyclictest9-21ksoftirqd/020:18:110
4569993327,4cyclictest9-21ksoftirqd/020:02:270
4569993312,4cyclictest31577-21seq23:18:520
138491330,13ptp4l401ktimersoftd/300:14:453
138491330,0ptp4l401ktimersoftd/322:27:383
4572993227,3cyclictest41-21ksoftirqd/321:16:033
4572993226,4cyclictest41-21ksoftirqd/323:09:033
4572993226,4cyclictest41-21ksoftirqd/322:35:183
4572993226,4cyclictest41-21ksoftirqd/320:39:493
4572993226,4cyclictest41-21ksoftirqd/300:09:333
4572993225,5cyclictest41-21ksoftirqd/322:50:153
4571993227,3cyclictest33-21ksoftirqd/223:20:192
4571993227,3cyclictest33-21ksoftirqd/223:20:192
4571993227,3cyclictest33-21ksoftirqd/222:42:592
4571993227,3cyclictest33-21ksoftirqd/220:18:112
4571993226,4cyclictest33-21ksoftirqd/223:56:002
4571993226,4cyclictest33-21ksoftirqd/223:04:182
4571993226,4cyclictest33-21ksoftirqd/222:51:342
4571993226,4cyclictest33-21ksoftirqd/221:32:022
4571993226,4cyclictest33-21ksoftirqd/220:49:022
4571993226,4cyclictest33-21ksoftirqd/200:29:102
4571993226,4cyclictest33-21ksoftirqd/200:10:402
4571993225,5cyclictest33-21ksoftirqd/200:19:272
4571993225,4cyclictest33-21ksoftirqd/221:07:572
4571993225,4cyclictest33-21ksoftirqd/219:55:072
4570993227,3cyclictest25-21ksoftirqd/120:10:171
4570993226,4cyclictest25-21ksoftirqd/123:03:521
4570993226,4cyclictest25-21ksoftirqd/121:27:091
4570993226,4cyclictest25-21ksoftirqd/119:58:231
4570993225,5cyclictest25-21ksoftirqd/120:44:281
4569993228,3cyclictest9-21ksoftirqd/020:29:210
4569993227,3cyclictest9-21ksoftirqd/022:57:220
4569993227,3cyclictest9-21ksoftirqd/022:35:140
4569993227,3cyclictest9-21ksoftirqd/000:29:330
4569993226,4cyclictest9-21ksoftirqd/023:37:330
4569993226,4cyclictest9-21ksoftirqd/023:30:380
4569993226,4cyclictest9-21ksoftirqd/023:26:020
4569993226,4cyclictest9-21ksoftirqd/023:03:270
4569993226,4cyclictest9-21ksoftirqd/021:36:180
4569993212,3cyclictest23278-21which19:45:310
138491320,0ptp4l401ktimersoftd/322:24:253
138491320,0ptp4l401ktimersoftd/320:26:303
4572993126,3cyclictest41-21ksoftirqd/323:18:023
4572993125,4cyclictest41-21ksoftirqd/322:40:483
4572993125,4cyclictest41-21ksoftirqd/300:00:313
4571993125,4cyclictest33-21ksoftirqd/223:30:092
4571993125,4cyclictest33-21ksoftirqd/219:50:052
4571993124,5cyclictest33-21ksoftirqd/221:57:272
4571993124,5cyclictest33-21ksoftirqd/220:14:142
4570993126,3cyclictest25-21ksoftirqd/121:12:031
4570993126,3cyclictest25-21ksoftirqd/119:30:351
4570993125,4cyclictest25-21ksoftirqd/122:59:191
4570993125,4cyclictest25-21ksoftirqd/122:34:001
4570993125,4cyclictest25-21ksoftirqd/122:14:331
4570993125,4cyclictest25-21ksoftirqd/120:27:391
4570993125,4cyclictest25-21ksoftirqd/100:02:371
457099312,26cyclictest26488-21cron19:55:001
4569993126,3cyclictest9-21ksoftirqd/021:56:190
4569993126,3cyclictest9-21ksoftirqd/020:49:000
4569993126,3cyclictest9-21ksoftirqd/019:55:090
4569993125,4cyclictest9-21ksoftirqd/022:01:340
4569993125,4cyclictest9-21ksoftirqd/020:09:370
4569993125,4cyclictest9-21ksoftirqd/019:20:590
4569993125,4cyclictest9-21ksoftirqd/000:31:320
4569993125,4cyclictest9-21ksoftirqd/000:01:280
4569993111,3cyclictest11276-21grep23:40:350
4569993110,4cyclictest18983-21seq22:50:560
4569993110,3cyclictest17245-21expr19:35:230
4569993110,2cyclictest27426-21df_abs23:10:240
138491310,0ptp4l401ktimersoftd/323:43:313
138491310,0ptp4l401ktimersoftd/322:08:173
138491310,0ptp4l401ktimersoftd/321:21:033
138491310,0ptp4l401ktimersoftd/319:23:023
4572993027,2cyclictest41-21ksoftirqd/322:04:293
4572993025,3cyclictest41-21ksoftirqd/319:35:213
4572993024,4cyclictest41-21ksoftirqd/323:51:283
4572993024,4cyclictest41-21ksoftirqd/323:51:283
4572993024,4cyclictest41-21ksoftirqd/323:25:173
4572993015,13cyclictest41-21ksoftirqd/300:00:003
4571993025,3cyclictest33-21ksoftirqd/222:39:232
4571993025,3cyclictest33-21ksoftirqd/221:38:042
4571993024,4cyclictest33-21ksoftirqd/223:53:322
4571993024,4cyclictest33-21ksoftirqd/223:53:322
4571993024,4cyclictest33-21ksoftirqd/223:28:402
4571993024,4cyclictest33-21ksoftirqd/223:07:262
4571993024,4cyclictest33-21ksoftirqd/220:29:002
4571993023,4cyclictest33-21ksoftirqd/200:04:572
4570993025,3cyclictest25-21ksoftirqd/122:53:331
4570993024,4cyclictest25-21ksoftirqd/122:27:261
4570993024,4cyclictest25-21ksoftirqd/121:17:451
4570993024,4cyclictest25-21ksoftirqd/120:58:241
4570993024,4cyclictest25-21ksoftirqd/119:40:181
4570993024,4cyclictest25-21ksoftirqd/119:26:461
4570993024,3cyclictest25-21ksoftirqd/121:45:021
4570993023,4cyclictest25-21ksoftirqd/122:37:591
456999309,3cyclictest1726-21cat21:15:010
4569993025,3cyclictest9-21ksoftirqd/020:41:510
4569993025,3cyclictest9-21ksoftirqd/020:23:570
4569993024,4cyclictest9-21ksoftirqd/023:50:410
4569993024,4cyclictest9-21ksoftirqd/023:50:410
4569993024,4cyclictest9-21ksoftirqd/023:08:530
4569993024,4cyclictest9-21ksoftirqd/022:42:560
4569993024,4cyclictest9-21ksoftirqd/022:05:190
4569993024,4cyclictest9-21ksoftirqd/021:27:590
4569993024,4cyclictest9-21ksoftirqd/021:16:530
4569993024,4cyclictest9-21ksoftirqd/000:39:270
4569993024,4cyclictest9-21ksoftirqd/000:08:340
456999301,13cyclictest31180-21grep21:05:370
4572992926,2cyclictest41-21ksoftirqd/321:54:063
4572992924,3cyclictest41-21ksoftirqd/319:15:123
4571992924,3cyclictest33-21ksoftirqd/223:37:372
4571992924,3cyclictest33-21ksoftirqd/220:41:272
4571992924,3cyclictest33-21ksoftirqd/219:26:532
4571992924,3cyclictest33-21ksoftirqd/219:19:482
457199291,17cyclictest18295-21meminfo21:45:282
4570992924,3cyclictest25-21ksoftirqd/122:48:391
4570992924,3cyclictest25-21ksoftirqd/121:22:571
4570992924,3cyclictest25-21ksoftirqd/120:04:591
4570992924,3cyclictest25-21ksoftirqd/100:35:001
4570992923,4cyclictest25-21ksoftirqd/121:44:341
4569992924,3cyclictest9-21ksoftirqd/023:48:320
4569992924,3cyclictest9-21ksoftirqd/022:13:010
4569992924,3cyclictest9-21ksoftirqd/019:42:130
138491290,0ptp4l401ktimersoftd/320:14:023
4572992823,3cyclictest41-21ksoftirqd/322:18:283
4572992822,4cyclictest41-21ksoftirqd/321:57:113
4571992823,3cyclictest33-21ksoftirqd/223:49:062
4571992823,3cyclictest33-21ksoftirqd/221:16:502
4571992823,3cyclictest33-21ksoftirqd/220:09:212
4571992823,3cyclictest33-21ksoftirqd/200:38:382
4571992822,4cyclictest33-21ksoftirqd/221:00:412
4571992821,4cyclictest33-21ksoftirqd/200:33:192
4570992824,2cyclictest25-21ksoftirqd/100:11:271
4570992823,3cyclictest25-21ksoftirqd/123:22:571
4570992823,3cyclictest25-21ksoftirqd/123:22:571
4570992822,4cyclictest25-21ksoftirqd/123:45:121
4570992822,3cyclictest25-21ksoftirqd/119:15:201
4570992821,5cyclictest25-21ksoftirqd/120:21:131
456999289,3cyclictest25109-21if_err_enp1s020:55:240
4569992823,3cyclictest9-21ksoftirqd/023:20:570
4569992823,3cyclictest9-21ksoftirqd/023:20:570
4569992823,3cyclictest9-21ksoftirqd/022:20:400
4569992823,3cyclictest9-21ksoftirqd/022:15:170
4569992823,3cyclictest9-21ksoftirqd/020:12:180
4569992822,4cyclictest9-21ksoftirqd/000:20:290
4569992822,4cyclictest9-21ksoftirqd/000:20:290
4572992722,3cyclictest41-21ksoftirqd/319:11:033
4571992721,4cyclictest33-21ksoftirqd/223:43:172
4571992721,4cyclictest33-21ksoftirqd/222:13:032
4570992722,3cyclictest25-21ksoftirqd/123:35:201
4570992722,3cyclictest25-21ksoftirqd/120:31:471
4570992721,4cyclictest25-21ksoftirqd/123:08:131
4570992721,4cyclictest25-21ksoftirqd/122:04:311
4570992721,4cyclictest25-21ksoftirqd/119:22:371
4570992721,4cyclictest25-21ksoftirqd/100:27:081
4570992713,7cyclictest1303-21runrttasks22:40:231
4569992722,3cyclictest9-21ksoftirqd/023:55:200
4571992621,3cyclictest33-21ksoftirqd/220:58:182
4571992621,3cyclictest33-21ksoftirqd/220:34:282
4570992621,3cyclictest25-21ksoftirqd/119:47:271
4570992620,4cyclictest25-21ksoftirqd/100:18:581
4571992518,4cyclictest33-21ksoftirqd/219:45:122
4570992519,4cyclictest25-21ksoftirqd/100:07:181
4569992519,4cyclictest9-21ksoftirqd/021:32:490
4571992419,3cyclictest33-21ksoftirqd/219:10:412
4570992419,3cyclictest25-21ksoftirqd/123:50:331
4570992419,3cyclictest25-21ksoftirqd/123:50:331
4570992419,3cyclictest25-21ksoftirqd/121:30:301
4570992418,4cyclictest25-21ksoftirqd/120:50:381
4570992418,4cyclictest25-21ksoftirqd/120:09:421
4569992420,3cyclictest9-21ksoftirqd/019:17:130
4569992418,4cyclictest9-21ksoftirqd/000:13:110
4570992317,4cyclictest25-21ksoftirqd/121:09:511
4571992217,3cyclictest33-21ksoftirqd/219:38:172
4570992216,4cyclictest25-21ksoftirqd/123:40:031
4571992010,9cyclictest33-21ksoftirqd/222:30:212
4570991813,3cyclictest20644-21irqstats21:50:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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