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2026-08-26 - 19:07
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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 Wed Aug 26, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205171,23phc2sys0-21swapper/307:05:103
12252205171,22sleep10-21swapper/107:09:011
9592204169,23sleep00-21swapper/007:05:400
10442201168,21sleep20-21swapper/207:06:462
138591161122,14phc2sys0-21swapper/307:10:013
3004521190,2sleep2161799cyclictest08:05:182
161699670,26cyclictest16152-21cron08:45:001
161699657,22cyclictest20791-21date09:55:261
161699650,24cyclictest22605-21/usr/sbin/munin07:50:191
161699610,24cyclictest25850-21/usr/sbin/munin07:55:261
161699600,23cyclictest30862-21chrt12:26:101
161699590,22cyclictest15949-21chrt11:57:531
161699590,22cyclictest15949-21chrt11:57:531
161699580,23cyclictest9673-21/usr/sbin/munin07:25:151
161699580,23cyclictest4748-21/usr/sbin/munin09:25:191
161699570,23cyclictest4755-21/usr/sbin/munin08:20:161
161699570,21cyclictest27013-21/usr/sbin/munin08:00:141
56032560,2sleep2311rcuc/207:15:232
161699561,22cyclictest11386-21turbostat.cron09:44:551
161699560,22cyclictest20348-21/usr/sbin/munin12:05:241
161699560,19cyclictest3150-21unixbench_multi11:30:251
161599565,9cyclictest9-21ksoftirqd/008:45:010
1615995626,10cyclictest9-21ksoftirqd/009:00:130
34452550,2sleep20-21swapper/210:25:272
161699558,21cyclictest331-21awk11:25:241
161699550,30cyclictest13396-21chrt10:45:361
161699550,23cyclictest12081-21idleruntime11:50:181
161699550,22cyclictest15002-21irqstats07:35:181
161699550,21cyclictest25082-21/usr/sbin/munin11:10:221
161699550,20cyclictest7851-21/usr/sbin/munin10:35:221
161699550,20cyclictest23534-21chrt08:57:371
161699550,19cyclictest11172-21chrt10:43:361
161599557,9cyclictest9-21ksoftirqd/011:25:200
161599554,10cyclictest9-21ksoftirqd/007:55:210
138491550,1ptp4l401ktimersoftd/311:57:493
138491550,1ptp4l401ktimersoftd/311:57:493
161699540,20cyclictest22888-21sensors11:05:251
161599545,9cyclictest9-21ksoftirqd/010:30:180
161599545,9cyclictest9-21ksoftirqd/010:30:180
161599545,9cyclictest9-21ksoftirqd/009:50:000
161599545,9cyclictest9-21ksoftirqd/009:35:170
161599545,9cyclictest9-21ksoftirqd/009:15:010
161599545,9cyclictest9-21ksoftirqd/007:25:120
161599545,8cyclictest9-21ksoftirqd/008:15:140
161599543,9cyclictest9-21ksoftirqd/009:20:190
161699530,25cyclictest15307-21proc_pri10:50:231
161699530,22cyclictest4158-21/usr/sbin/munin07:15:121
161599536,9cyclictest9-21ksoftirqd/008:50:130
161599535,9cyclictest9-21ksoftirqd/007:35:180
161599535,8cyclictest9-21ksoftirqd/008:55:200
161599535,8cyclictest9-21ksoftirqd/007:30:160
1615995323,10cyclictest9-21ksoftirqd/007:45:130
1615995322,3cyclictest9-21ksoftirqd/008:25:000
161699520,23cyclictest3524-21chrt08:16:121
161699520,23cyclictest18281-21timedrift07:40:261
161699520,21cyclictest5800-21chrt11:36:391
161599526,8cyclictest9-21ksoftirqd/008:10:140
161599525,9cyclictest9-21ksoftirqd/010:10:150
161599525,8cyclictest9-21ksoftirqd/010:20:260
161599524,9cyclictest9-21ksoftirqd/012:05:120
161599524,9cyclictest9-21ksoftirqd/010:00:140
161599524,8cyclictest9-21ksoftirqd/007:20:200
161599523,6cyclictest9-21ksoftirqd/010:25:170
161599523,5cyclictest9-21ksoftirqd/010:15:210
1615995221,4cyclictest9-21ksoftirqd/010:05:140
1615995219,10cyclictest9-21ksoftirqd/008:45:200
161699511,21cyclictest21063-21taskset07:46:241
161699510,22cyclictest20373-21/usr/sbin/munin11:00:271
161699510,21cyclictest13514-21chrt07:31:591
161699510,21cyclictest1303-21runrttasks12:18:101
161699510,21cyclictest1303-21runrttasks10:14:551
161599515,9cyclictest9-21ksoftirqd/009:55:000
161599515,8cyclictest9-21ksoftirqd/009:05:150
161599513,8cyclictest9-21ksoftirqd/011:50:010
161599513,7cyclictest9-21ksoftirqd/007:10:190
161599513,5cyclictest9-21ksoftirqd/012:25:110
161699500,23cyclictest23879-21chrt10:04:561
161599505,9cyclictest9-21ksoftirqd/011:15:160
161599504,8cyclictest9-21ksoftirqd/011:55:150
161599504,8cyclictest9-21ksoftirqd/011:55:150
1615995031,11cyclictest9-21ksoftirqd/009:35:000
1615995018,4cyclictest9-21ksoftirqd/007:50:110
161699491,19cyclictest223-21systemd-journal11:18:451
161699490,22cyclictest3757-21chrt07:13:071
161699490,22cyclictest1166-21chrt12:34:321
161599496,8cyclictest9-21ksoftirqd/010:50:170
161599496,10cyclictest9-21ksoftirqd/012:15:230
161699480,22cyclictest3765-21chrt10:28:191
161699480,20cyclictest32576-21/usr/sbin/munin10:20:181
161699480,18cyclictest13597-21chrt08:38:591
161699480,17cyclictest27025-21chrt12:20:201
161699480,17cyclictest27025-21chrt12:20:201
161599486,9cyclictest9-21ksoftirqd/012:35:140
161599486,9cyclictest9-21ksoftirqd/010:40:170
161599486,8cyclictest9-21ksoftirqd/009:25:140
161599486,10cyclictest9-21ksoftirqd/011:00:290
161599485,9cyclictest9-21ksoftirqd/012:20:260
161599485,9cyclictest9-21ksoftirqd/012:20:260
161599484,9cyclictest9-21ksoftirqd/009:55:250
161599483,6cyclictest9-21ksoftirqd/012:30:230
161599483,6cyclictest9-21ksoftirqd/011:30:150
161599482,8cyclictest9-21ksoftirqd/011:45:000
161699470,25cyclictest8558-21chrt08:27:291
161699470,21cyclictest10902-21seq08:31:011
161699470,20cyclictest8620-21chrt07:22:171
161599475,10cyclictest9-21ksoftirqd/010:50:010
161599474,4cyclictest9-21ksoftirqd/007:15:130
161599473,5cyclictest9-21ksoftirqd/009:15:130
161699460,22cyclictest21056-21taskset08:52:221
161699460,20cyclictest26138-21taskset09:03:271
161699460,20cyclictest26096-21chrt10:06:171
161599465,10cyclictest9-21ksoftirqd/008:00:180
161599464,10cyclictest9-21ksoftirqd/011:20:140
161599463,6cyclictest9-21ksoftirqd/007:40:180
161599462,6cyclictest9-21ksoftirqd/008:35:260
161699450,23cyclictest31008-21taskset09:13:011
161599453,9cyclictest9-21ksoftirqd/008:05:200
161599452,7cyclictest9-21ksoftirqd/010:55:130
161599452,6cyclictest9-21ksoftirqd/011:45:140
161599452,6cyclictest9-21ksoftirqd/010:40:010
161599452,5cyclictest9-21ksoftirqd/011:10:000
1615994517,4cyclictest9-21ksoftirqd/011:39:170
161699440,22cyclictest1045-21runrttasks08:12:031
161699440,19cyclictest30981-21taskset10:15:551
161699440,18cyclictest0-21swapper/108:50:001
161599445,10cyclictest9-21ksoftirqd/012:10:140
161599443,5cyclictest9-21ksoftirqd/011:10:210
161599441,5cyclictest9-21ksoftirqd/008:29:590
138491440,1ptp4l20249-21meminfo07:45:193
161699430,20cyclictest3617-21chrt09:23:091
161599433,6cyclictest9-21ksoftirqd/012:00:130
161599430,7cyclictest9-21ksoftirqd/008:30:110
161699420,19cyclictest1923-21df_abs12:35:141
161699420,19cyclictest18765-21chrt09:52:451
161599420,5cyclictest9-21ksoftirqd/009:40:150
161699411,23cyclictest18379-21chrt10:56:321
1616994110,18cyclictest1303-21runrttasks11:45:571
138491410,1ptp4l401ktimersoftd/310:36:033
138491410,1ptp4l401ktimersoftd/309:09:543
161699400,20cyclictest29874-21cat11:20:191
161699391,16cyclictest0-21swapper/112:03:251
138491390,0ptp4l401ktimersoftd/309:55:183
1618993832,3cyclictest41-21ksoftirqd/312:35:003
1617993832,4cyclictest33-21ksoftirqd/211:54:302
138491380,0ptp4l401ktimersoftd/312:00:193
138491380,0ptp4l401ktimersoftd/311:40:123
1618993732,3cyclictest41-21ksoftirqd/311:49:053
1618993731,4cyclictest41-21ksoftirqd/310:50:113
1618993730,5cyclictest41-21ksoftirqd/309:18:383
1618993729,6cyclictest41-21ksoftirqd/308:15:003
1618993725,11cyclictest41-21ksoftirqd/311:20:003
1617993732,3cyclictest33-21ksoftirqd/207:40:002
1617993731,4cyclictest33-21ksoftirqd/208:36:512
161699370,21cyclictest23172-21chrt12:10:411
161699370,20cyclictest11231-21taskset09:38:321
161699370,17cyclictest6147-21taskset10:32:231
161699370,17cyclictest6147-21taskset10:32:221
138491370,0ptp4l401ktimersoftd/308:50:283
1618993630,4cyclictest41-21ksoftirqd/310:17:463
1618993630,4cyclictest41-21ksoftirqd/310:12:213
1618993630,4cyclictest41-21ksoftirqd/308:47:033
1618993630,4cyclictest41-21ksoftirqd/308:03:073
1618993630,4cyclictest41-21ksoftirqd/307:40:013
1617993630,4cyclictest33-21ksoftirqd/211:42:262
1617993630,4cyclictest33-21ksoftirqd/208:55:412
1617993630,4cyclictest33-21ksoftirqd/207:40:032
138491360,1ptp4l401ktimersoftd/310:05:223
1618993529,4cyclictest41-21ksoftirqd/311:04:483
1618993529,4cyclictest41-21ksoftirqd/308:40:453
1618993529,4cyclictest41-21ksoftirqd/307:26:033
1617993530,3cyclictest33-21ksoftirqd/212:06:572
1617993530,3cyclictest33-21ksoftirqd/210:13:102
1617993530,3cyclictest33-21ksoftirqd/207:23:202
1617993529,4cyclictest33-21ksoftirqd/212:10:502
1617993529,4cyclictest33-21ksoftirqd/211:35:402
1617993529,4cyclictest33-21ksoftirqd/207:51:152
1617993528,4cyclictest33-21ksoftirqd/209:24:212
161699350,21cyclictest31160-21taskset08:08:511
138491350,0ptp4l401ktimersoftd/311:25:113
1618993429,3cyclictest41-21ksoftirqd/311:09:513
1618993429,3cyclictest41-21ksoftirqd/310:57:263
1618993429,3cyclictest41-21ksoftirqd/310:25:473
1618993428,4cyclictest41-21ksoftirqd/311:52:383
1618993428,4cyclictest41-21ksoftirqd/309:41:323
1618993428,4cyclictest41-21ksoftirqd/308:17:153
1617993429,3cyclictest33-21ksoftirqd/212:35:192
1617993428,4cyclictest33-21ksoftirqd/212:01:152
1617993428,4cyclictest33-21ksoftirqd/209:40:462
1617993428,4cyclictest33-21ksoftirqd/209:25:502
1617993428,4cyclictest33-21ksoftirqd/209:07:572
1617993428,4cyclictest33-21ksoftirqd/208:40:372
1617993428,4cyclictest33-21ksoftirqd/208:33:382
1617993428,4cyclictest33-21ksoftirqd/208:26:082
1617993427,4cyclictest33-21ksoftirqd/209:46:202
161699341,21cyclictest16493-21taskset09:50:011
161699340,18cyclictest27716-21needreboot09:05:211
1618993328,3cyclictest41-21ksoftirqd/309:54:473
1618993327,4cyclictest41-21ksoftirqd/311:14:233
1618993327,4cyclictest41-21ksoftirqd/309:38:383
1618993327,4cyclictest41-21ksoftirqd/308:32:123
1618993327,4cyclictest41-21ksoftirqd/307:42:093
1618993326,4cyclictest41-21ksoftirqd/307:24:003
1617993328,3cyclictest33-21ksoftirqd/212:26:272
1617993328,3cyclictest33-21ksoftirqd/212:24:302
1617993328,3cyclictest33-21ksoftirqd/212:24:302
1617993328,3cyclictest33-21ksoftirqd/211:07:562
1617993328,3cyclictest33-21ksoftirqd/209:53:592
1617993328,3cyclictest33-21ksoftirqd/207:57:192
1617993327,4cyclictest33-21ksoftirqd/211:31:072
1617993327,4cyclictest33-21ksoftirqd/211:15:542
1617993327,4cyclictest33-21ksoftirqd/210:36:182
1617993327,4cyclictest33-21ksoftirqd/209:39:232
1617993327,4cyclictest33-21ksoftirqd/208:00:452
1617993327,4cyclictest33-21ksoftirqd/207:31:292
161699330,23cyclictest0-21swapper/109:15:241
161699330,18cyclictest8433-21taskset11:43:431
138491330,0ptp4l401ktimersoftd/310:23:433
1618993228,3cyclictest41-21ksoftirqd/310:04:243
1618993228,3cyclictest41-21ksoftirqd/308:05:183
1618993227,3cyclictest41-21ksoftirqd/312:15:153
1618993227,3cyclictest41-21ksoftirqd/310:30:263
1618993227,3cyclictest41-21ksoftirqd/310:30:263
1618993227,3cyclictest41-21ksoftirqd/309:34:133
1618993226,4cyclictest41-21ksoftirqd/311:35:493
1618993226,4cyclictest41-21ksoftirqd/310:46:263
1618993226,4cyclictest41-21ksoftirqd/308:29:273
1618993226,3cyclictest41-21ksoftirqd/307:55:113
1617993226,4cyclictest33-21ksoftirqd/211:26:492
1617993226,4cyclictest33-21ksoftirqd/211:24:212
1617993226,4cyclictest33-21ksoftirqd/210:09:472
1617993226,4cyclictest33-21ksoftirqd/208:14:462
1617993226,4cyclictest33-21ksoftirqd/207:28:162
161699321,19cyclictest1303-21runrttasks09:33:221
138491320,0ptp4l401ktimersoftd/308:23:143
1618993125,3cyclictest41-21ksoftirqd/312:40:013
1618993125,3cyclictest41-21ksoftirqd/309:00:183
1617993126,3cyclictest33-21ksoftirqd/212:33:382
1617993126,3cyclictest33-21ksoftirqd/209:02:052
1617993125,4cyclictest33-21ksoftirqd/212:15:362
1617993125,4cyclictest33-21ksoftirqd/211:13:052
138491310,0ptp4l401ktimersoftd/309:46:253
1618993024,4cyclictest41-21ksoftirqd/311:33:323
1618993024,4cyclictest41-21ksoftirqd/311:22:453
1618993024,4cyclictest41-21ksoftirqd/309:29:323
1617993025,3cyclictest33-21ksoftirqd/210:23:382
1617993025,3cyclictest33-21ksoftirqd/210:15:492
1617993025,3cyclictest33-21ksoftirqd/209:31:342
1617993024,4cyclictest33-21ksoftirqd/210:54:202
1617993024,4cyclictest33-21ksoftirqd/210:44:222
1617993024,4cyclictest33-21ksoftirqd/209:19:002
1617993024,3cyclictest21403-21cron10:00:002
138491300,15ptp4l161899cyclictest07:30:213
138491300,11ptp4l0-21swapper/308:59:073
1618992924,3cyclictest41-21ksoftirqd/308:37:483
1618992923,4cyclictest41-21ksoftirqd/312:29:333
1618992923,4cyclictest41-21ksoftirqd/312:13:163
1617992924,3cyclictest33-21ksoftirqd/211:45:452
1617992924,3cyclictest33-21ksoftirqd/211:04:512
1617992924,3cyclictest33-21ksoftirqd/210:59:582
1617992924,3cyclictest33-21ksoftirqd/208:48:472
138491290,0ptp4l401ktimersoftd/312:20:333
138491290,0ptp4l401ktimersoftd/312:20:333
1618992823,3cyclictest41-21ksoftirqd/307:19:233
1618992822,4cyclictest41-21ksoftirqd/310:42:053
1617992824,3cyclictest33-21ksoftirqd/211:55:122
1617992824,3cyclictest33-21ksoftirqd/211:55:122
1617992823,3cyclictest33-21ksoftirqd/210:02:552
1617992822,3cyclictest33-21ksoftirqd/210:49:092
138491280,0ptp4l401ktimersoftd/312:05:123
138491280,0ptp4l401ktimersoftd/309:22:093
1617992722,3cyclictest33-21ksoftirqd/208:20:502
1617992721,4cyclictest33-21ksoftirqd/207:49:332
1617992621,3cyclictest33-21ksoftirqd/208:53:202
1617992519,4cyclictest33-21ksoftirqd/207:13:482
138491250,0ptp4l401ktimersoftd/309:13:043
1617992418,4cyclictest33-21ksoftirqd/208:17:112
138491230,0ptp4l401ktimersoftd/307:50:183
161799210,19cyclictest29962-21irqstats09:10:192
1617991813,3cyclictest4206-21cpu10:30:122
1617991813,3cyclictest4206-21cpu10:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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