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2025-12-02 - 09:03
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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 rackcslot4.osadl.org (updated Tue Dec 02, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34935972271186,28sleep00-21swapper/019:06:390
34938742255182,58sleep10-21swapper/119:09:371
125899590,6rtkit-daemon251rcuc/120:25:171
35804192570,5sleep00-21swapper/022:00:230
35604242510,4sleep10-21swapper/121:32:541
3494014994610,6cyclictest26-21ksoftirqd/122:45:001
35849102450,5sleep10-21swapper/122:06:551
3494014994515,7cyclictest26-21ksoftirqd/119:25:011
3494014994514,7cyclictest26-21ksoftirqd/119:20:001
3494014994514,5cyclictest26-21ksoftirqd/122:10:021
3494014994512,5cyclictest26-21ksoftirqd/122:25:021
3494014994414,5cyclictest26-21ksoftirqd/100:15:021
349400999446,3cyclictest141rcu_preempt19:20:010
36253112420,3sleep00-21swapper/023:04:260
3494014994212,6cyclictest26-21ksoftirqd/120:10:011
125899420,3rtkit-daemon0-21swapper/122:34:281
349401499418,5cyclictest26-21ksoftirqd/122:30:011
349401499418,19cyclictest26-21ksoftirqd/100:25:011
125899410,4rtkit-daemon0-21swapper/123:24:341
349401499404,2cyclictest141rcu_preempt23:30:011
3494014994024,2cyclictest3545321-21ssh21:12:171
3494014994019,5cyclictest26-21ksoftirqd/100:00:001
3494014994013,4cyclictest26-21ksoftirqd/119:30:001
3494014994010,6cyclictest26-21ksoftirqd/100:15:021
3494014993910,6cyclictest26-21ksoftirqd/123:40:001
3494009993916,6cyclictest13-21ksoftirqd/023:00:000
349401499388,3cyclictest141rcu_preempt21:40:261
349401499387,6cyclictest26-21ksoftirqd/100:35:121
3494014993821,3cyclictest3652913-21rm23:43:261
3494014993814,4cyclictest26-21ksoftirqd/120:50:181
349400999383,3cyclictest141rcu_preempt21:50:000
349401499379,3cyclictest141rcu_preempt23:45:141
349401499379,3cyclictest141rcu_preempt23:45:141
3494014993715,5cyclictest26-21ksoftirqd/119:15:001
3494014993712,4cyclictest26-21ksoftirqd/121:50:241
3494014993712,4cyclictest26-21ksoftirqd/119:40:191
3494014993614,6cyclictest26-21ksoftirqd/119:50:001
3494014993612,7cyclictest26-21ksoftirqd/123:50:231
3494014993612,4cyclictest26-21ksoftirqd/123:14:151
3494014993612,3cyclictest26-21ksoftirqd/100:05:261
3494009993616,4cyclictest13-21ksoftirqd/022:40:000
3494009993614,6cyclictest13-21ksoftirqd/023:35:010
3494009993613,4cyclictest13-21ksoftirqd/023:45:180
3494009993613,4cyclictest13-21ksoftirqd/023:45:180
349401499359,6cyclictest26-21ksoftirqd/122:20:001
349401499357,2cyclictest141rcu_preempt22:50:131
3494014993512,4cyclictest26-21ksoftirqd/123:00:241
3494014993512,4cyclictest26-21ksoftirqd/120:00:241
3494014993510,6cyclictest26-21ksoftirqd/119:30:251
349400999355,3cyclictest141rcu_preempt19:55:260
3494009993515,5cyclictest13-21ksoftirqd/023:10:000
3494009993513,5cyclictest13-21ksoftirqd/000:00:010
3494009993512,4cyclictest13-21ksoftirqd/020:45:010
349401499349,6cyclictest26-21ksoftirqd/119:35:251
349401499349,5cyclictest26-21ksoftirqd/122:55:061
349401499348,5cyclictest26-21ksoftirqd/100:31:031
3494014993415,6cyclictest26-21ksoftirqd/123:30:151
3494014993413,6cyclictest26-21ksoftirqd/121:50:001
3494014993413,3cyclictest26-21ksoftirqd/121:15:221
349401499341,2cyclictest141rcu_preempt21:25:021
3494014993411,5cyclictest26-21ksoftirqd/119:50:241
3494014993411,4cyclictest26-21ksoftirqd/100:00:201
3494014993410,5cyclictest26-21ksoftirqd/122:48:101
3494014993410,4cyclictest26-21ksoftirqd/121:56:321
3494014993410,4cyclictest26-21ksoftirqd/121:20:251
3494014993410,4cyclictest26-21ksoftirqd/120:36:401
349400999349,2cyclictest141rcu_preempt23:50:170
349400999346,2cyclictest141rcu_preempt19:35:150
349400999344,4cyclictest13-21ksoftirqd/021:32:210
3494009993413,5cyclictest13-21ksoftirqd/022:50:000
3494009993413,5cyclictest13-21ksoftirqd/021:15:220
3494009993413,5cyclictest13-21ksoftirqd/020:25:000
3494009993411,6cyclictest13-21ksoftirqd/000:15:030
349401499339,5cyclictest26-21ksoftirqd/122:01:271
349401499339,5cyclictest26-21ksoftirqd/120:47:001
349401499339,4cyclictest26-21ksoftirqd/123:05:041
349401499339,4cyclictest26-21ksoftirqd/121:35:231
3494014993314,3cyclictest26-21ksoftirqd/120:10:241
3494014993311,4cyclictest26-21ksoftirqd/122:37:131
3494014993310,5cyclictest26-21ksoftirqd/119:55:241
349400999338,4cyclictest13-21ksoftirqd/000:09:580
349400999338,3cyclictest141rcu_preempt22:15:220
349400999336,3cyclictest141rcu_preempt00:11:410
349400999331,7cyclictest13-21ksoftirqd/023:35:160
3494009993315,10cyclictest3508446-21apt-get19:45:130
3494009993312,6cyclictest13-21ksoftirqd/020:50:000
3494009993312,6cyclictest13-21ksoftirqd/020:15:250
3494009993312,5cyclictest13-21ksoftirqd/021:10:240
3494009993311,4cyclictest13-21ksoftirqd/023:15:220
3494009993310,4cyclictest13-21ksoftirqd/023:28:420
3494009993310,4cyclictest13-21ksoftirqd/021:55:060
125899330,10rtkit-daemon3507929-21sshd19:41:480
349401499328,4cyclictest26-21ksoftirqd/100:28:211
349401499328,3cyclictest141rcu_preempt20:20:271
349401499327,5cyclictest26-21ksoftirqd/123:16:131
349400999329,4cyclictest13-21ksoftirqd/023:40:160
349400999329,4cyclictest13-21ksoftirqd/021:51:170
349400999327,4cyclictest13-21ksoftirqd/023:23:390
349400999326,2cyclictest141rcu_preempt00:25:190
3494009993212,5cyclictest13-21ksoftirqd/023:10:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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