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2026-06-05 - 18:44
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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 Fri Jun 05, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206173,22phc2sys0-21swapper/307:08:083
45422205172,22sleep20-21swapper/207:06:492
46482200167,22sleep10-21swapper/107:08:121
45402200167,22sleep00-21swapper/007:06:470
1221621630,6sleep3509199cyclictest09:35:003
262621580,3sleep3509199cyclictest11:25:123
5088996130,3cyclictest9-21ksoftirqd/012:35:270
57402600,1sleep10-21swapper/112:35:191
5088995821,8cyclictest9-21ksoftirqd/008:19:520
5088995729,3cyclictest9-21ksoftirqd/010:30:150
138491570,0ptp4l401ktimersoftd/312:25:153
5088995626,4cyclictest9-21ksoftirqd/011:15:130
5088995626,4cyclictest9-21ksoftirqd/007:15:270
5088995522,7cyclictest9-21ksoftirqd/010:50:170
5088995522,4cyclictest9-21ksoftirqd/007:35:190
5088995518,6cyclictest9-21ksoftirqd/012:15:250
5088995428,6cyclictest9-21ksoftirqd/010:20:260
5088995425,3cyclictest9-21ksoftirqd/007:30:200
5088995423,6cyclictest9-21ksoftirqd/011:55:160
5088995423,6cyclictest9-21ksoftirqd/008:05:270
5088995422,4cyclictest9-21ksoftirqd/009:30:160
5088995421,9cyclictest9-21ksoftirqd/008:30:250
5088995418,5cyclictest9-21ksoftirqd/009:25:230
5088995324,7cyclictest9-21ksoftirqd/010:40:200
5088995324,5cyclictest9-21ksoftirqd/009:54:310
5088995323,6cyclictest9-21ksoftirqd/009:45:560
5088995321,7cyclictest9-21ksoftirqd/010:05:140
5088995321,4cyclictest9-21ksoftirqd/009:40:170
5088995319,7cyclictest9-21ksoftirqd/008:20:230
5088995318,3cyclictest9-21ksoftirqd/010:45:130
5088995317,6cyclictest9-21ksoftirqd/010:10:140
5088995317,5cyclictest9-21ksoftirqd/011:40:130
5088995317,5cyclictest9-21ksoftirqd/009:35:250
5088995316,5cyclictest9-21ksoftirqd/011:45:230
5088995226,7cyclictest9-21ksoftirqd/009:25:010
5088995225,6cyclictest9-21ksoftirqd/008:50:000
5088995224,3cyclictest9-21ksoftirqd/007:10:260
5088995223,6cyclictest9-21ksoftirqd/011:50:210
5088995223,3cyclictest9-21ksoftirqd/010:01:000
5088995220,3cyclictest9-21ksoftirqd/012:05:190
5088995217,6cyclictest9-21ksoftirqd/007:50:200
5088995217,5cyclictest9-21ksoftirqd/008:40:140
5088995216,7cyclictest9-21ksoftirqd/011:10:260
5088995214,6cyclictest9-21ksoftirqd/007:40:170
5088995213,6cyclictest9-21ksoftirqd/012:20:260
5088995123,3cyclictest9-21ksoftirqd/008:25:130
5088995121,6cyclictest9-21ksoftirqd/008:50:230
5088995118,6cyclictest9-21ksoftirqd/012:30:000
5088995117,6cyclictest9-21ksoftirqd/007:20:230
5088995114,6cyclictest9-21ksoftirqd/011:00:160
5088995024,6cyclictest9-21ksoftirqd/010:35:250
5088995022,3cyclictest9-21ksoftirqd/010:59:250
5088995021,4cyclictest9-21ksoftirqd/011:32:050
5088995021,3cyclictest9-21ksoftirqd/012:13:550
5088995018,3cyclictest9-21ksoftirqd/009:00:180
5088995017,7cyclictest9-21ksoftirqd/009:10:000
5088995017,5cyclictest9-21ksoftirqd/009:10:110
5088995012,6cyclictest9-21ksoftirqd/008:10:130
5088994913,5cyclictest9-21ksoftirqd/012:30:220
138491490,0ptp4l401ktimersoftd/308:45:243
508899489,4cyclictest9-21ksoftirqd/009:15:290
508899472,3cyclictest9-21ksoftirqd/011:25:140
5088994717,3cyclictest9-21ksoftirqd/009:55:240
508899471,3cyclictest9-21ksoftirqd/011:05:270
5088994617,5cyclictest9-21ksoftirqd/010:25:130
508899461,3cyclictest9-21ksoftirqd/010:15:130
509099450,43cyclictest0-21swapper/210:10:332
508899453,3cyclictest9-21ksoftirqd/012:00:110
5088994516,6cyclictest9-21ksoftirqd/007:55:230
5088994516,3cyclictest9-21ksoftirqd/011:20:150
5088994433,2cyclictest9-21ksoftirqd/007:25:270
508899442,3cyclictest121rcu_preempt08:55:130
5088994411,5cyclictest9-21ksoftirqd/007:45:140
508899440,3cyclictest9-21ksoftirqd/008:00:210
5091994332,8cyclictest41-21ksoftirqd/308:00:183
508899431,2cyclictest9-21ksoftirqd/008:35:250
138491430,0ptp4l401ktimersoftd/310:40:173
134991430,7getstats509199cyclictest08:13:343
5088994236,3cyclictest9-21ksoftirqd/011:40:000
138491420,0ptp4l401ktimersoftd/310:05:173
138491420,0ptp4l401ktimersoftd/307:55:123
138491420,0ptp4l401ktimersoftd/307:40:233
5091994136,3cyclictest41-21ksoftirqd/308:55:013
5091994135,3cyclictest41-21ksoftirqd/310:05:003
5091994134,4cyclictest41-21ksoftirqd/312:40:003
5089994035,3cyclictest25-21ksoftirqd/111:59:591
5089994034,3cyclictest17404-21latency_hist07:35:011
5091993934,2cyclictest41-21ksoftirqd/309:15:263
5091993928,3cyclictest41-21ksoftirqd/312:30:233
5091993927,9cyclictest41-21ksoftirqd/307:25:133
5089993934,3cyclictest25-21ksoftirqd/107:40:011
508999391,35cyclictest32108-21sshd11:18:591
508999390,37cyclictest0-21swapper/109:41:231
138491390,0ptp4l401ktimersoftd/307:50:243
5091993834,2cyclictest41-21ksoftirqd/309:00:013
5091993833,3cyclictest41-21ksoftirqd/310:15:223
5091993832,3cyclictest41-21ksoftirqd/312:25:003
5091993832,3cyclictest41-21ksoftirqd/310:30:003
5089993832,3cyclictest25-21ksoftirqd/112:20:011
5091993731,4cyclictest41-21ksoftirqd/308:37:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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