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2026-07-30 - 01:40
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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 rackdslot3.osadl.org (updated Wed Jul 29, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491208173,23phc2sys0-21swapper/307:09:223
101622205172,22sleep00-21swapper/007:05:520
103032204170,23sleep20-21swapper/207:07:422
102302203169,22sleep10-21swapper/107:06:461
2562521730,7sleep21087899cyclictest11:00:262
2206421400,6sleep21087899cyclictest07:30:242
10874997229,5cyclictest9-21ksoftirqd/007:30:010
41482710,5sleep11087699cyclictest10:15:251
217922580,4sleep0101ktimersoftd/012:00:250
139391570,1ptp4l401ktimersoftd/311:08:063
10874995719,7cyclictest9-21ksoftirqd/011:20:200
139391560,1ptp4l401ktimersoftd/308:48:053
10879995621,5cyclictest41-21ksoftirqd/311:40:253
10874995626,4cyclictest9-21ksoftirqd/010:45:220
10874995426,7cyclictest9-21ksoftirqd/007:15:230
10874995424,8cyclictest9-21ksoftirqd/010:00:240
10874995424,4cyclictest9-21ksoftirqd/008:25:240
10874995422,4cyclictest9-21ksoftirqd/007:55:280
10874995323,8cyclictest9-21ksoftirqd/010:55:210
10874995322,4cyclictest9-21ksoftirqd/008:05:220
10874995318,3cyclictest9-21ksoftirqd/012:15:180
10874995317,4cyclictest9-21ksoftirqd/007:35:160
10874995314,6cyclictest9-21ksoftirqd/007:50:010
10879995122,3cyclictest41-21ksoftirqd/310:05:273
10874995129,11cyclictest9-21ksoftirqd/009:30:000
10874995124,6cyclictest9-21ksoftirqd/011:30:010
10874995123,4cyclictest9-21ksoftirqd/007:30:290
10874995119,5cyclictest9-21ksoftirqd/008:55:120
10874995117,3cyclictest9-21ksoftirqd/010:20:220
10874995113,6cyclictest9-21ksoftirqd/010:40:160
10879995015,10cyclictest41-21ksoftirqd/309:45:003
1087499503,2cyclictest9-21ksoftirqd/012:40:000
10874995021,4cyclictest9-21ksoftirqd/008:50:240
10874995014,4cyclictest9-21ksoftirqd/011:10:290
10874995012,6cyclictest9-21ksoftirqd/011:45:280
10874995010,7cyclictest9-21ksoftirqd/011:40:190
10874995010,6cyclictest9-21ksoftirqd/010:35:260
10874995010,6cyclictest9-21ksoftirqd/007:10:190
241972490,2sleep30-21swapper/312:05:223
1087999496,5cyclictest41-21ksoftirqd/312:16:083
10879994927,5cyclictest41-21ksoftirqd/308:55:013
10879994916,4cyclictest41-21ksoftirqd/307:45:253
1087499499,8cyclictest9-21ksoftirqd/009:20:200
10874994919,4cyclictest9-21ksoftirqd/010:50:140
10874994918,6cyclictest9-21ksoftirqd/008:40:180
10874994914,3cyclictest121rcu_preempt12:23:120
10874994912,6cyclictest9-21ksoftirqd/007:20:170
10874994911,5cyclictest9-21ksoftirqd/010:05:230
10874994911,4cyclictest9-21ksoftirqd/012:05:220
10874994910,6cyclictest9-21ksoftirqd/011:35:220
10874994910,6cyclictest9-21ksoftirqd/007:40:140
1087499489,6cyclictest9-21ksoftirqd/008:45:210
10874994821,7cyclictest9-21ksoftirqd/009:35:150
10874994819,4cyclictest9-21ksoftirqd/009:54:570
10874994811,6cyclictest9-21ksoftirqd/011:55:240
10874994811,5cyclictest9-21ksoftirqd/011:30:230
10874994811,5cyclictest9-21ksoftirqd/009:30:210
1087999472,2cyclictest121rcu_preempt10:40:013
10879994717,7cyclictest41-21ksoftirqd/308:05:153
10879994715,4cyclictest41-21ksoftirqd/312:30:263
10879994713,7cyclictest41-21ksoftirqd/309:40:003
1087499474,2cyclictest121rcu_preempt11:20:010
10874994719,6cyclictest9-21ksoftirqd/007:50:220
10874994716,5cyclictest9-21ksoftirqd/008:33:520
10874994715,5cyclictest9-21ksoftirqd/011:05:130
10874994714,5cyclictest9-21ksoftirqd/009:40:130
10874994714,2cyclictest121rcu_preempt08:00:230
10874994710,6cyclictest9-21ksoftirqd/009:05:270
10874994710,5cyclictest9-21ksoftirqd/010:10:150
10874994710,5cyclictest9-21ksoftirqd/008:35:180
1087999464,4cyclictest41-21ksoftirqd/307:27:443
10879994616,4cyclictest41-21ksoftirqd/311:15:213
10879994615,8cyclictest41-21ksoftirqd/308:20:193
10874994617,4cyclictest9-21ksoftirqd/010:15:210
10874994617,3cyclictest9-21ksoftirqd/010:25:140
10874994614,4cyclictest9-21ksoftirqd/008:25:010
10874994613,6cyclictest9-21ksoftirqd/009:55:260
10874994610,5cyclictest9-21ksoftirqd/010:30:140
4202450,2sleep10-21swapper/107:55:151
1087999452,4cyclictest41-21ksoftirqd/308:31:233
10879994517,8cyclictest41-21ksoftirqd/310:45:173
10879994510,6cyclictest41-21ksoftirqd/311:25:003
10879994510,5cyclictest41-21ksoftirqd/309:20:263
10879994510,4cyclictest41-21ksoftirqd/307:30:253
10878994527,3cyclictest33-21ksoftirqd/210:10:112
10874994518,7cyclictest9-21ksoftirqd/009:15:120
139391440,0ptp4l401ktimersoftd/310:25:003
1087999448,4cyclictest41-21ksoftirqd/310:54:503
1087999443,4cyclictest41-21ksoftirqd/309:58:563
10879994418,7cyclictest41-21ksoftirqd/311:00:213
10879994413,3cyclictest41-21ksoftirqd/309:00:233
10879994410,4cyclictest41-21ksoftirqd/311:55:273
1087699440,2cyclictest0-21swapper/109:05:011
10874994416,4cyclictest9-21ksoftirqd/011:00:210
139391430,0ptp4l401ktimersoftd/308:55:163
10879994327,13cyclictest41-21ksoftirqd/311:00:013
10879994314,6cyclictest41-21ksoftirqd/309:30:143
10879994312,4cyclictest41-21ksoftirqd/310:41:583
10879994311,7cyclictest41-21ksoftirqd/311:10:153
10879994310,3cyclictest41-21ksoftirqd/309:25:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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