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2026-08-24 - 05:33
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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 Mon Aug 24, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
986124440,3sleep1241ktimersoftd/119:05:261
103522238193,34sleep30-21swapper/319:07:593
104432202169,22sleep20-21swapper/219:09:102
83742201167,23sleep00-21swapper/019:05:060
1394918363,11phc2sys0-21swapper/319:10:023
1050928262,11sleep00-21swapper/019:10:000
1080099694,9cyclictest9-21ksoftirqd/020:10:000
10800996732,4cyclictest9-21ksoftirqd/000:05:000
10800996426,10cyclictest9-21ksoftirqd/022:20:250
10800995926,4cyclictest9-21ksoftirqd/023:05:240
1080099586,8cyclictest9-21ksoftirqd/023:00:000
10800995827,4cyclictest9-21ksoftirqd/023:15:000
10800995825,5cyclictest9-21ksoftirqd/020:50:010
10800995824,4cyclictest9-21ksoftirqd/019:45:010
10801995754,2cyclictest231rcuc/122:46:571
10801995753,3cyclictest231rcuc/122:24:021
1080199571,8cyclictest207-21systemd-journal19:35:001
10800995726,4cyclictest9-21ksoftirqd/023:20:180
139391560,1ptp4l401ktimersoftd/321:32:033
10800995627,7cyclictest9-21ksoftirqd/000:30:010
10800995627,7cyclictest9-21ksoftirqd/000:30:010
10800995626,4cyclictest9-21ksoftirqd/021:50:000
10800995624,8cyclictest9-21ksoftirqd/022:30:180
10800995622,4cyclictest9-21ksoftirqd/021:30:140
10800995622,4cyclictest9-21ksoftirqd/000:10:240
10800995617,9cyclictest9-21ksoftirqd/021:50:230
10800995528,4cyclictest9-21ksoftirqd/023:15:130
10801995415,4cyclictest25-21ksoftirqd/123:15:491
10800995424,4cyclictest9-21ksoftirqd/000:20:150
10800995424,10cyclictest9-21ksoftirqd/023:25:140
10800995424,10cyclictest9-21ksoftirqd/023:25:140
10800995423,4cyclictest9-21ksoftirqd/000:30:160
10800995422,4cyclictest9-21ksoftirqd/021:05:240
1080099532,7cyclictest9-21ksoftirqd/022:00:120
10800995327,8cyclictest9-21ksoftirqd/021:20:230
1080099530,7cyclictest14569-21sort20:25:000
10801995248,2cyclictest231rcuc/121:05:061
10801995248,2cyclictest231rcuc/100:09:431
1080099525,7cyclictest9-21ksoftirqd/022:45:250
10800995240,3cyclictest9-21ksoftirqd/000:00:010
10800995240,3cyclictest9-21ksoftirqd/000:00:000
10800995229,9cyclictest9-21ksoftirqd/019:30:130
10800995228,3cyclictest9-21ksoftirqd/019:52:590
10800995226,4cyclictest9-21ksoftirqd/023:45:160
10800995222,8cyclictest9-21ksoftirqd/019:15:130
139391510,1ptp4l401ktimersoftd/322:33:053
1080199512,6cyclictest25-21ksoftirqd/123:35:001
1080099514,9cyclictest10799-21cyclictest23:40:010
1080099513,8cyclictest549-21in:imuxsock22:45:000
1080099513,7cyclictest9-21ksoftirqd/019:50:010
213732500,4sleep20-21swapper/219:30:202
10801995016,6cyclictest25-21ksoftirqd/120:27:331
10801995014,6cyclictest25-21ksoftirqd/122:53:561
1080099503,10cyclictest9-21ksoftirqd/019:20:010
10800995015,10cyclictest9-21ksoftirqd/000:10:000
1080099500,8cyclictest9-21ksoftirqd/022:20:010
10801994946,2cyclictest231rcuc/119:45:151
1080199493,7cyclictest241ktimersoftd/120:45:251
1080099495,9cyclictest9-21ksoftirqd/021:05:010
1080099495,9cyclictest9-21ksoftirqd/021:05:010
10800994935,2cyclictest9-21ksoftirqd/020:55:160
1080099492,8cyclictest9-21ksoftirqd/021:40:250
1080099490,9cyclictest9-21ksoftirqd/023:40:210
107612490,3sleep310683-21latency_hist23:40:003
1080199486,5cyclictest25-21ksoftirqd/120:41:591
1080199480,5cyclictest241ktimersoftd/120:15:281
1080099486,3cyclictest9-21ksoftirqd/020:50:150
1080099485,4cyclictest9-21ksoftirqd/021:10:180
1080099485,10cyclictest9-21ksoftirqd/020:10:220
1080099483,5cyclictest9-21ksoftirqd/020:35:260
10800994834,4cyclictest9-21ksoftirqd/020:15:280
1080099481,8cyclictest9-21ksoftirqd/020:25:140
1080199476,5cyclictest25-21ksoftirqd/120:20:141
1080199475,6cyclictest25-21ksoftirqd/120:05:271
1080199473,6cyclictest241ktimersoftd/123:35:191
1080199473,5cyclictest241ktimersoftd/121:20:151
1080199472,7cyclictest241ktimersoftd/100:28:371
1080199472,7cyclictest241ktimersoftd/100:28:361
10801994713,4cyclictest25-21ksoftirqd/122:41:511
1080199470,7cyclictest241ktimersoftd/119:20:191
1080099474,9cyclictest9-21ksoftirqd/020:00:120
1080099474,8cyclictest121rcu_preempt20:30:160
1080099474,2cyclictest9-21ksoftirqd/022:35:160
10800994732,4cyclictest9-21ksoftirqd/022:10:180
10800994730,7cyclictest9-21ksoftirqd/022:50:100
1080099472,10cyclictest9-21ksoftirqd/019:25:220
10800994714,7cyclictest9-21ksoftirqd/022:25:160
1080099470,8cyclictest9-21ksoftirqd/000:40:000
1080199462,7cyclictest25-21ksoftirqd/100:10:201
1080199461,7cyclictest241ktimersoftd/100:30:121
1080199460,7cyclictest241ktimersoftd/122:10:181
1080199460,5cyclictest241ktimersoftd/119:35:201
1080199460,5cyclictest241ktimersoftd/119:35:201
1080199460,43cyclictest241ktimersoftd/121:34:591
1080099465,4cyclictest9-21ksoftirqd/023:30:300
1080099464,7cyclictest9-21ksoftirqd/023:50:270
1080099464,7cyclictest9-21ksoftirqd/021:55:190
1080099463,9cyclictest9-21ksoftirqd/021:15:140
1080099463,4cyclictest9-21ksoftirqd/022:05:190
1080199456,6cyclictest25-21ksoftirqd/121:40:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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