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2026-01-09 - 22:05
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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 all highest latencies:
System rackdslot2.osadl.org (updated Fri Jan 09, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23072235169,22sleep20-21swapper/207:08:092
23072235169,22sleep20-21swapper/207:08:092
139591210147,22phc2sys0-21swapper/307:08:093
139591210147,22phc2sys0-21swapper/307:08:093
22482205172,22sleep10-21swapper/107:07:241
22482205172,22sleep10-21swapper/107:07:241
21852205173,21sleep00-21swapper/007:06:350
21852205173,21sleep00-21swapper/007:06:350
2072721800,5sleep0279799cyclictest11:10:000
921821760,6sleep1279899cyclictest11:50:241
3207821480,6sleep3280099cyclictest10:25:143
1838421480,6sleep0279799cyclictest08:50:000
279999605,22cyclictest18964-21taskset07:41:462
186332560,2sleep30-21swapper/311:05:143
81272520,2sleep10-21swapper/107:20:151
2800994929,17cyclictest41-21ksoftirqd/311:15:133
2800994929,17cyclictest41-21ksoftirqd/311:15:123
279999481,3cyclictest0-21swapper/209:59:402
260062460,2sleep30-21swapper/310:10:273
279999457,23cyclictest312-21rs:main2
279999450,3cyclictest2646-21latency_hist09:25:012
279999437,24cyclictest18785-21seq12:10:382
139291430,0ptp4l401ktimersoftd/311:33:553
279999421,3cyclictest0-21swapper/210:36:242
139291420,0ptp4l401ktimersoftd/311:35:203
139291420,0ptp4l401ktimersoftd/310:05:383
41298400,2rtkit-daemon411-21rtkit-daemon08:05:240
2800994034,4cyclictest41-21ksoftirqd/311:55:083
279999409,23cyclictest1308-21runrttasks11:55:062
2799994023,14cyclictest25465-21cron09:05:002
279999392,22cyclictest0-21swapper/208:06:062
2797993935,3cyclictest9-21ksoftirqd/011:30:010
139291390,17ptp4l401ktimersoftd/311:15:013
139291390,17ptp4l401ktimersoftd/311:15:013
2800993832,4cyclictest41-21ksoftirqd/312:34:313
2800993832,4cyclictest41-21ksoftirqd/312:02:383
2800993832,4cyclictest41-21ksoftirqd/310:30:113
2800993832,4cyclictest41-21ksoftirqd/309:19:043
2800993832,4cyclictest41-21ksoftirqd/307:34:373
279999380,3cyclictest13262-21taskset10:53:502
2798993825,11cyclictest25-21ksoftirqd/110:40:441
139591381,8phc2sys41-21ksoftirqd/309:20:133
2800993732,3cyclictest41-21ksoftirqd/308:26:363
2800993732,3cyclictest41-21ksoftirqd/307:58:543
2800993731,4cyclictest41-21ksoftirqd/312:19:043
2800993731,4cyclictest41-21ksoftirqd/309:10:333
2800993730,4cyclictest41-21ksoftirqd/310:21:573
2799993732,3cyclictest33-21ksoftirqd/211:11:142
2799993732,3cyclictest33-21ksoftirqd/211:11:142
2799993732,3cyclictest33-21ksoftirqd/209:05:112
2799993731,4cyclictest33-21ksoftirqd/210:49:252
2799993731,4cyclictest33-21ksoftirqd/207:11:062
2799993731,4cyclictest33-21ksoftirqd/207:11:062
279999370,3cyclictest21313-21taskset10:00:382
2800993631,3cyclictest41-21ksoftirqd/312:09:163
2800993631,3cyclictest41-21ksoftirqd/307:43:043
2800993630,4cyclictest41-21ksoftirqd/312:21:333
2800993630,4cyclictest41-21ksoftirqd/309:29:273
2800993630,4cyclictest41-21ksoftirqd/308:45:023
2800993629,5cyclictest41-21ksoftirqd/311:40:533
2799993630,4cyclictest33-21ksoftirqd/208:56:082
2799993630,4cyclictest33-21ksoftirqd/208:10:552
2798993629,4cyclictest25-21ksoftirqd/109:25:111
2798993629,4cyclictest25-21ksoftirqd/108:35:531
2797993630,4cyclictest9-21ksoftirqd/011:47:510
2797993630,4cyclictest9-21ksoftirqd/009:44:560
2797993630,4cyclictest9-21ksoftirqd/009:02:040
2797993630,4cyclictest9-21ksoftirqd/007:47:460
2797993630,4cyclictest9-21ksoftirqd/007:15:290
144222361,2sleep0121rcu_preempt08:40:180
2800993530,3cyclictest41-21ksoftirqd/311:45:383
2800993530,3cyclictest41-21ksoftirqd/310:03:543
2800993530,3cyclictest41-21ksoftirqd/307:36:393
2800993529,4cyclictest41-21ksoftirqd/310:43:273
2800993529,4cyclictest41-21ksoftirqd/307:50:063
2800993528,4cyclictest41-21ksoftirqd/312:39:453
2799993530,3cyclictest33-21ksoftirqd/211:40:122
2799993530,3cyclictest33-21ksoftirqd/211:30:052
2799993529,4cyclictest33-21ksoftirqd/211:28:402
2799993529,4cyclictest33-21ksoftirqd/209:36:282
2799993529,4cyclictest33-21ksoftirqd/208:37:512
2799993529,4cyclictest33-21ksoftirqd/208:32:092
2799993529,4cyclictest33-21ksoftirqd/207:59:122
2799993529,4cyclictest33-21ksoftirqd/207:24:462
2798993530,3cyclictest25-21ksoftirqd/110:50:121
2798993529,4cyclictest25-21ksoftirqd/111:45:481
2798993529,4cyclictest25-21ksoftirqd/111:10:341
2798993529,4cyclictest25-21ksoftirqd/111:10:341
2798993529,4cyclictest25-21ksoftirqd/110:34:221
2798993529,4cyclictest25-21ksoftirqd/109:05:061
2797993529,4cyclictest9-21ksoftirqd/012:26:580
2797993529,4cyclictest9-21ksoftirqd/009:47:570
2797993529,4cyclictest9-21ksoftirqd/008:59:550
2797993529,4cyclictest9-21ksoftirqd/008:16:270
2797993529,4cyclictest9-21ksoftirqd/008:02:020
2797993528,5cyclictest9-21ksoftirqd/010:05:250
2797993528,4cyclictest9-21ksoftirqd/011:44:180
2797993528,4cyclictest9-21ksoftirqd/009:59:400
41298340,2rtkit-daemon411-21rtkit-daemon09:28:380
2800993429,3cyclictest41-21ksoftirqd/312:26:423
2800993429,3cyclictest41-21ksoftirqd/311:29:443
2800993429,3cyclictest41-21ksoftirqd/309:05:563
2800993429,3cyclictest41-21ksoftirqd/308:23:293
2800993429,3cyclictest41-21ksoftirqd/308:13:573
2800993428,4cyclictest41-21ksoftirqd/311:01:453
2800993428,4cyclictest41-21ksoftirqd/310:35:533
2800993428,4cyclictest41-21ksoftirqd/309:52:053
2800993428,4cyclictest41-21ksoftirqd/308:05:343
2800993427,4cyclictest41-21ksoftirqd/310:17:333
2799993429,3cyclictest33-21ksoftirqd/212:07:312
2799993429,3cyclictest33-21ksoftirqd/211:15:122
2799993429,3cyclictest33-21ksoftirqd/211:15:122
2799993429,3cyclictest33-21ksoftirqd/208:48:422
2799993428,4cyclictest33-21ksoftirqd/211:22:062
2799993428,4cyclictest33-21ksoftirqd/211:02:562
2799993428,4cyclictest33-21ksoftirqd/210:44:392
2799993428,4cyclictest33-21ksoftirqd/208:41:202
2799993428,4cyclictest33-21ksoftirqd/207:29:392
2799993428,4cyclictest33-21ksoftirqd/207:17:272
2799993427,4cyclictest33-21ksoftirqd/208:29:312
279999340,3cyclictest2251-1kworker/2:0H09:45:002
2798993429,3cyclictest25-21ksoftirqd/112:30:111
2798993429,3cyclictest25-21ksoftirqd/109:39:551
2798993429,3cyclictest25-21ksoftirqd/108:00:591
2798993428,4cyclictest25-21ksoftirqd/112:04:171
2798993428,4cyclictest25-21ksoftirqd/110:08:481
2798993428,4cyclictest25-21ksoftirqd/110:04:191
2798993428,4cyclictest25-21ksoftirqd/109:54:281
2798993428,4cyclictest25-21ksoftirqd/108:33:041
2798993428,4cyclictest25-21ksoftirqd/108:20:531
2798993428,4cyclictest25-21ksoftirqd/107:59:101
2798993428,4cyclictest25-21ksoftirqd/107:44:341
2797993429,3cyclictest9-21ksoftirqd/010:57:410
2797993429,3cyclictest9-21ksoftirqd/008:14:550
2797993429,3cyclictest9-21ksoftirqd/007:35:180
2797993428,4cyclictest9-21ksoftirqd/012:30:550
2797993428,4cyclictest9-21ksoftirqd/011:56:580
2797993428,4cyclictest9-21ksoftirqd/011:37:090
2797993427,4cyclictest9-21ksoftirqd/012:01:240
2797993424,7cyclictest9-21ksoftirqd/007:15:000
2797993424,7cyclictest9-21ksoftirqd/007:15:000
2800993328,3cyclictest41-21ksoftirqd/309:42:053
2800993327,4cyclictest41-21ksoftirqd/311:52:593
2800993327,4cyclictest41-21ksoftirqd/309:34:273
2799993328,3cyclictest33-21ksoftirqd/212:32:592
2799993328,3cyclictest33-21ksoftirqd/212:22:272
2799993328,3cyclictest33-21ksoftirqd/211:51:282
2799993328,3cyclictest33-21ksoftirqd/209:46:312
2799993328,3cyclictest33-21ksoftirqd/209:11:112
2799993328,3cyclictest33-21ksoftirqd/207:53:542
2799993327,4cyclictest33-21ksoftirqd/210:14:592
2799993327,4cyclictest33-21ksoftirqd/208:04:332
2799993327,3cyclictest33-21ksoftirqd/211:45:422
2799993327,3cyclictest33-21ksoftirqd/208:50:042
279999331,3cyclictest6267-21taskset08:23:312
279999330,4cyclictest21283-21taskset12:17:132
2798993328,3cyclictest25-21ksoftirqd/112:25:131
2798993328,3cyclictest25-21ksoftirqd/111:57:191
2798993328,3cyclictest25-21ksoftirqd/111:27:531
2798993328,3cyclictest25-21ksoftirqd/110:24:511
2798993328,3cyclictest25-21ksoftirqd/107:15:091
2798993327,4cyclictest25-21ksoftirqd/110:55:461
2798993327,4cyclictest25-21ksoftirqd/108:47:411
2798993327,4cyclictest25-21ksoftirqd/107:31:141
2797993328,3cyclictest9-21ksoftirqd/009:33:010
2797993328,3cyclictest9-21ksoftirqd/009:10:000
2797993327,4cyclictest9-21ksoftirqd/012:10:240
2797993327,4cyclictest9-21ksoftirqd/011:52:490
2797993327,4cyclictest9-21ksoftirqd/010:12:230
2797993327,4cyclictest9-21ksoftirqd/009:23:300
2797993327,4cyclictest9-21ksoftirqd/007:32:580
2800993228,2cyclictest139291ptp4l09:00:163
2800993227,3cyclictest41-21ksoftirqd/308:54:003
2800993227,3cyclictest41-21ksoftirqd/308:31:183
2800993227,3cyclictest41-21ksoftirqd/307:45:303
2800993226,4cyclictest41-21ksoftirqd/308:44:143
2799993227,3cyclictest33-21ksoftirqd/212:26:252
2799993227,3cyclictest33-21ksoftirqd/209:52:122
2799993227,3cyclictest33-21ksoftirqd/208:19:592
2799993226,4cyclictest33-21ksoftirqd/210:59:552
279999320,3cyclictest23885-21chrt10:08:122
279999320,2cyclictest4230-21gzip09:25:252
2798993227,3cyclictest25-21ksoftirqd/109:46:581
2798993227,3cyclictest25-21ksoftirqd/109:03:091
2798993227,3cyclictest25-21ksoftirqd/108:42:141
2798993227,3cyclictest25-21ksoftirqd/108:27:571
2798993227,3cyclictest25-21ksoftirqd/107:47:191
2798993226,4cyclictest25-21ksoftirqd/110:15:581
2798993226,4cyclictest25-21ksoftirqd/109:42:031
2797993228,3cyclictest9-21ksoftirqd/010:30:250
2797993227,3cyclictest9-21ksoftirqd/009:12:230
2797993227,3cyclictest13521-21latency_hist08:40:000
2797993226,4cyclictest9-21ksoftirqd/012:06:570
2797993226,4cyclictest9-21ksoftirqd/008:50:280
2797993226,4cyclictest9-21ksoftirqd/007:51:070
2800993126,3cyclictest41-21ksoftirqd/311:23:313
2800993126,3cyclictest41-21ksoftirqd/309:48:093
2800993126,3cyclictest41-21ksoftirqd/307:12:543
2800993126,3cyclictest41-21ksoftirqd/307:12:533
2800993125,4cyclictest41-21ksoftirqd/308:36:313
2800993125,4cyclictest41-21ksoftirqd/308:00:093
2800993125,4cyclictest41-21ksoftirqd/307:15:233
2799993126,3cyclictest33-21ksoftirqd/211:39:092
2799993125,4cyclictest33-21ksoftirqd/210:32:202
2798993126,3cyclictest25-21ksoftirqd/111:18:521
2798993126,3cyclictest25-21ksoftirqd/111:18:511
2798993126,3cyclictest25-21ksoftirqd/108:05:091
2798993126,3cyclictest25-21ksoftirqd/107:36:311
2798993125,4cyclictest25-21ksoftirqd/112:12:511
2798993125,4cyclictest25-21ksoftirqd/111:00:071
2798993125,4cyclictest25-21ksoftirqd/108:57:271
2798993125,4cyclictest25-21ksoftirqd/108:18:361
2797993126,3cyclictest9715-21cron07:25:000
2797993126,3cyclictest9-21ksoftirqd/012:20:180
2797993126,3cyclictest9-21ksoftirqd/010:29:530
2797993126,3cyclictest9-21ksoftirqd/007:57:210
2797993126,3cyclictest9-21ksoftirqd/007:44:290
2797993125,4cyclictest9-21ksoftirqd/011:34:360
2797993125,4cyclictest9-21ksoftirqd/011:23:450
2797993125,4cyclictest9-21ksoftirqd/009:35:580
2797993125,4cyclictest9-21ksoftirqd/009:16:350
2797993125,3cyclictest9-21ksoftirqd/010:24:320
2799993025,3cyclictest33-21ksoftirqd/212:02:382
2799993024,4cyclictest33-21ksoftirqd/211:05:282
279999301,3cyclictest0-21swapper/209:31:292
2799993013,14cyclictest12579-21expr07:30:122
279999301,25cyclictest14711-21apt-get07:35:122
279999300,4cyclictest32759-21missed_timers10:25:212
279999300,3cyclictest31597-21grep10:25:012
279999300,3cyclictest27128-21cstates10:15:132
2798993025,3cyclictest25-21ksoftirqd/111:41:151
2798993025,3cyclictest25-21ksoftirqd/111:30:071
2798993025,3cyclictest25-21ksoftirqd/111:20:371
2798993025,3cyclictest25-21ksoftirqd/110:48:231
2798993025,3cyclictest25-21ksoftirqd/109:23:251
2798993025,3cyclictest25-21ksoftirqd/108:53:091
2798993025,3cyclictest25-21ksoftirqd/107:25:071
2798993024,4cyclictest25-21ksoftirqd/110:12:011
2798993024,4cyclictest25-21ksoftirqd/107:10:401
2798993024,4cyclictest25-21ksoftirqd/107:10:401
2797993025,3cyclictest9-21ksoftirqd/008:21:530
2797993025,3cyclictest9-21ksoftirqd/007:28:450
2797993024,4cyclictest9-21ksoftirqd/012:15:030
2797993023,5cyclictest9-21ksoftirqd/010:00:100
139291300,0ptp4l401ktimersoftd/308:58:163
139291300,0ptp4l401ktimersoftd/308:17:453
2800992924,3cyclictest41-21ksoftirqd/310:47:433
2800992924,3cyclictest41-21ksoftirqd/307:23:223
2799992924,3cyclictest33-21ksoftirqd/212:39:152
279999292,22cyclictest30459-21apt-get09:15:102
2798992924,3cyclictest25-21ksoftirqd/112:23:351
2798992924,3cyclictest25-21ksoftirqd/109:30:111
2798992923,4cyclictest25-21ksoftirqd/109:57:011
2797992924,3cyclictest9-21ksoftirqd/011:10:120
2797992924,3cyclictest9-21ksoftirqd/011:10:120
2797992923,4cyclictest9-21ksoftirqd/009:50:300
2798992824,3cyclictest25-21ksoftirqd/109:13:361
2798992823,3cyclictest25-21ksoftirqd/112:35:351
2798992823,3cyclictest25-21ksoftirqd/112:15:371
2798992823,3cyclictest25-21ksoftirqd/111:37:441
2798992823,3cyclictest25-21ksoftirqd/111:05:351
2798992823,3cyclictest25-21ksoftirqd/109:17:051
2798992823,3cyclictest25-21ksoftirqd/108:13:591
2798992822,4cyclictest25-21ksoftirqd/110:27:451
2797992824,3cyclictest9-21ksoftirqd/008:30:190
2797992823,3cyclictest9-21ksoftirqd/010:47:260
2797992822,4cyclictest9-21ksoftirqd/010:52:040
2797992822,3cyclictest9-21ksoftirqd/011:18:150
2797992822,3cyclictest9-21ksoftirqd/011:18:140
2798992722,3cyclictest25-21ksoftirqd/112:07:161
2797992722,3cyclictest9-21ksoftirqd/011:01:180
2797992722,3cyclictest9-21ksoftirqd/008:26:030
2800992621,3cyclictest41-21ksoftirqd/312:14:343
2800992620,4cyclictest13364-21cron10:55:003
280099260,24cyclictest8291-21irqrtprio09:35:173
2797992620,4cyclictest9-21ksoftirqd/010:17:540
139291260,0ptp4l401ktimersoftd/310:56:473
2800992520,3cyclictest41-21ksoftirqd/309:55:533
2797992520,3cyclictest9-21ksoftirqd/010:35:150
2797992418,4cyclictest9-21ksoftirqd/010:42:090
2798992317,4cyclictest25-21ksoftirqd/110:35:111
2797992318,3cyclictest9-21ksoftirqd/012:35:180
139291230,0ptp4l401ktimersoftd/307:25:163
2798991914,3cyclictest25-21ksoftirqd/107:50:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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