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2026-03-30 - 16:59
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Mon Mar 30, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591201168,22phc2sys0-21swapper/307:09:553
113372200166,22sleep20-21swapper/207:09:092
113402199165,22sleep00-21swapper/007:09:110
111612197161,24sleep10-21swapper/107:06:501
1384911020,1ptp4l2433-21irqstats10:05:193
56092710,1sleep10-21swapper/111:15:261
237552620,4sleep125-21ksoftirqd/109:45:001
237552620,4sleep125-21ksoftirqd/109:45:001
138491580,1ptp4l401ktimersoftd/307:10:213
138491570,1ptp4l401ktimersoftd/311:01:203
138491520,1ptp4l401ktimersoftd/311:46:083
138491480,1ptp4l401ktimersoftd/307:16:183
138491430,0ptp4l401ktimersoftd/309:00:293
11702994338,3cyclictest31798-21fschecks_count10:00:143
50798410,4rtkit-daemon6689-21apt-get12:25:133
11699994136,2cyclictest9-21ksoftirqd/010:20:000
138491400,0ptp4l401ktimersoftd/308:40:153
11702994034,4cyclictest41-21ksoftirqd/312:00:003
11701994033,4cyclictest11301-21cron10:25:002
11699994035,3cyclictest9-21ksoftirqd/012:30:000
11699994026,5cyclictest9-21ksoftirqd/008:08:070
135191390,8getstats1170299cyclictest07:44:293
1170199390,37cyclictest0-21swapper/212:25:332
138491380,0ptp4l401ktimersoftd/307:20:133
11702993834,2cyclictest41-21ksoftirqd/308:50:123
11702993833,3cyclictest41-21ksoftirqd/309:00:003
11700993834,2cyclictest25-21ksoftirqd/109:05:001
11702993731,3cyclictest41-21ksoftirqd/310:50:003
11701993731,4cyclictest33-21ksoftirqd/209:49:422
11700993733,2cyclictest25-21ksoftirqd/112:20:001
11700993732,3cyclictest25-21ksoftirqd/112:00:001
11699993733,2cyclictest9-21ksoftirqd/011:25:000
11699993732,3cyclictest9-21ksoftirqd/010:10:010
11699993731,4cyclictest9-21ksoftirqd/009:07:560
1169999371,2cyclictest121rcu_preempt12:03:310
11702993631,3cyclictest41-21ksoftirqd/311:25:003
11702993631,3cyclictest41-21ksoftirqd/310:20:173
11702993631,3cyclictest41-21ksoftirqd/309:30:173
11702993631,3cyclictest41-21ksoftirqd/309:16:073
11702993630,4cyclictest41-21ksoftirqd/312:35:443
11701993630,4cyclictest33-21ksoftirqd/211:08:052
11701993630,4cyclictest33-21ksoftirqd/209:42:132
11701993630,4cyclictest33-21ksoftirqd/209:42:122
11701993630,4cyclictest33-21ksoftirqd/207:40:342
11700993632,2cyclictest25-21ksoftirqd/110:05:001
11700993631,3cyclictest25-21ksoftirqd/110:15:211
138491350,0ptp4l401ktimersoftd/309:20:193
11702993531,2cyclictest41-21ksoftirqd/312:05:003
11702993530,3cyclictest41-21ksoftirqd/311:35:133
11702993530,3cyclictest41-21ksoftirqd/308:05:003
11702993530,3cyclictest41-21ksoftirqd/308:05:003
11702993529,4cyclictest41-21ksoftirqd/309:39:043
11702993529,4cyclictest41-21ksoftirqd/308:15:093
11702993529,4cyclictest41-21ksoftirqd/307:47:293
11702993529,3cyclictest41-21ksoftirqd/307:55:003
11701993529,4cyclictest33-21ksoftirqd/210:17:222
11701993529,4cyclictest33-21ksoftirqd/210:03:072
11701993529,4cyclictest33-21ksoftirqd/209:58:372
11701993528,4cyclictest33-21ksoftirqd/209:38:052
1170199350,34cyclictest0-21swapper/212:00:232
11700993529,4cyclictest25-21ksoftirqd/109:23:421
11700993529,4cyclictest25-21ksoftirqd/108:15:591
11700993528,4cyclictest25-21ksoftirqd/111:40:301
11700993527,3cyclictest25-21ksoftirqd/110:05:131
11699993531,2cyclictest9-21ksoftirqd/008:25:120
11699993530,3cyclictest9-21ksoftirqd/012:10:010
11699993529,4cyclictest9-21ksoftirqd/011:39:360
11699993529,4cyclictest9-21ksoftirqd/009:38:530
11699993529,4cyclictest9-21ksoftirqd/009:10:420
11699993529,4cyclictest9-21ksoftirqd/008:43:330
11699993529,4cyclictest9-21ksoftirqd/007:34:060
11699993529,3cyclictest9-21ksoftirqd/012:35:180
11702993430,3cyclictest41-21ksoftirqd/308:20:183
11702993429,3cyclictest41-21ksoftirqd/311:40:083
11702993429,3cyclictest41-21ksoftirqd/311:30:173
11702993429,3cyclictest41-21ksoftirqd/308:30:143
11702993428,4cyclictest41-21ksoftirqd/310:31:233
11702993428,3cyclictest41-21ksoftirqd/312:10:003
11701993429,3cyclictest33-21ksoftirqd/211:33:572
11701993429,3cyclictest33-21ksoftirqd/207:18:092
11701993428,4cyclictest33-21ksoftirqd/212:08:112
11701993428,4cyclictest33-21ksoftirqd/211:51:222
11701993428,4cyclictest33-21ksoftirqd/211:37:262
11701993428,4cyclictest33-21ksoftirqd/211:02:162
11701993428,4cyclictest33-21ksoftirqd/210:58:382
11701993428,4cyclictest33-21ksoftirqd/210:48:072
11701993428,4cyclictest33-21ksoftirqd/208:55:352
11701993428,4cyclictest33-21ksoftirqd/208:31:562
11701993428,4cyclictest33-21ksoftirqd/208:03:362
11701993428,4cyclictest33-21ksoftirqd/208:03:362
11701993428,4cyclictest33-21ksoftirqd/207:54:372
11700993430,2cyclictest25-21ksoftirqd/108:00:011
11700993428,4cyclictest25-21ksoftirqd/111:54:591
11700993428,4cyclictest25-21ksoftirqd/111:23:411
11700993428,4cyclictest25-21ksoftirqd/111:08:281
11700993428,4cyclictest25-21ksoftirqd/109:51:431
11700993428,4cyclictest25-21ksoftirqd/108:36:331
11699993431,2cyclictest9-21ksoftirqd/007:45:000
11699993429,3cyclictest9-21ksoftirqd/010:20:120
11699993428,4cyclictest9-21ksoftirqd/012:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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