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2025-05-02 - 12:46
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack3slot6.osadl.org (updated Fri May 02, 2025 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2881429524,23sleep00-21swapper/019:08:160
29169998361,12cyclictest26-21ksoftirqd/122:05:171
2897328126,42sleep10-21swapper/119:09:281
29169997111,26cyclictest18660-21apt-get21:40:151
2916699705,55cyclictest25624-21apt-get22:00:140
2916699699,52cyclictest0-21swapper/021:50:150
29169996631,28cyclictest26-21ksoftirqd/120:44:191
29169996533,17cyclictest0-21swapper/119:35:151
29169996445,11cyclictest26-21ksoftirqd/120:00:161
29169996438,14cyclictest26-21ksoftirqd/121:55:161
29169996436,18cyclictest26-21ksoftirqd/100:10:131
29166996436,15cyclictest14-21ksoftirqd/021:15:370
29166996340,18cyclictest14-21ksoftirqd/021:55:180
29166996338,19cyclictest14-21ksoftirqd/019:20:180
29166996328,23cyclictest14-21ksoftirqd/020:50:380
29169996247,10cyclictest26-21ksoftirqd/123:05:161
29169996134,18cyclictest26-21ksoftirqd/100:35:151
29169996133,19cyclictest208-21jbd2/sda1-823:00:161
2916699617,47cyclictest0-21swapper/022:15:230
29166996137,18cyclictest14-21ksoftirqd/022:25:190
2916999608,8cyclictest151rcu_preempt00:00:001
29166996037,18cyclictest14-21ksoftirqd/019:25:180
29166996036,18cyclictest14-21ksoftirqd/000:10:190
29166996010,43cyclictest0-21swapper/023:35:130
29169995933,17cyclictest0-21swapper/123:40:131
29169995933,17cyclictest0-21swapper/123:40:121
29169995929,24cyclictest420-21dbus-daemon22:05:001
29166995923,24cyclictest14-21ksoftirqd/000:35:200
2916999587,22cyclictest18038-21apt-get23:10:141
2916999583,19cyclictest12069-21unixbench_multi22:50:391
29169995831,15cyclictest0-21swapper/121:50:141
2916699585,17cyclictest0-21swapper/022:35:200
2916699583,20cyclictest21340-21apt-get23:20:010
29169995742,10cyclictest26-21ksoftirqd/122:25:451
29169995738,10cyclictest26-21ksoftirqd/121:10:221
29169995735,13cyclictest26-21ksoftirqd/121:05:161
29169995734,17cyclictest26-21ksoftirqd/123:50:381
29169995734,16cyclictest26-21ksoftirqd/122:35:361
29169995731,15cyclictest0-21swapper/119:45:171
29169995731,15cyclictest0-21swapper/119:45:171
29166995733,18cyclictest14-21ksoftirqd/020:15:210
2916699572,48cyclictest5677-21runrttasks22:35:010
2916999564,47cyclictest8857-21grep19:40:431
29169995642,9cyclictest26-21ksoftirqd/121:20:271
29169995641,9cyclictest26-21ksoftirqd/123:35:321
29169995641,9cyclictest26-21ksoftirqd/122:45:281
29169995641,9cyclictest26-21ksoftirqd/121:30:251
29169995641,9cyclictest26-21ksoftirqd/121:25:251
29169995641,9cyclictest26-21ksoftirqd/120:50:231
29169995641,9cyclictest26-21ksoftirqd/120:35:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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