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2024-07-16 - 08:45
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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 50 highest latencies:
System rackdslot2.osadl.org (updated Mon Jul 15, 2024 12:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1235911130,4ptp4l401ktimersoftd/307:07:253
123591870,2ptp4l401ktimersoftd/311:44:353
57698850,15rtkit-daemon0-21swapper/007:05:570
123591830,11ptp4l0-21swapper/309:22:143
123591830,11ptp4l0-21swapper/309:22:143
3049999761,26cyclictest7621-21cat08:39:080
3050199704,12cyclictest6868-21gunzip10:50:322
3050199702,12cyclictest583-21polkitd08:40:022
230362700,5sleep023038-21switchtime08:00:390
3050199683,18cyclictest27904-21latency_hist09:20:012
3049999682,62cyclictest19511-21tr07:55:120
3050199673,13cyclictest18561-21latency_hist09:00:002
213772670,2sleep20-21swapper/209:05:152
284112663,48sleep10-21swapper/107:05:131
123591660,2ptp4l401ktimersoftd/307:47:463
3050199653,12cyclictest11722-21switchtime11:00:412
3050199653,11cyclictest3743-21grep07:20:302
3050199652,12cyclictest11189-21irqrtprio12:10:262
3050199648,8cyclictest20805-21latency_hist09:05:012
3050199642,17cyclictest1327-21kernelversion09:30:272
3050199642,14cyclictest31314-21irqrtprio09:25:242
3050199642,14cyclictest31314-21irqrtprio09:25:242
3050199641,13cyclictest12643-21fschecks_count09:55:152
3050199627,8cyclictest19656-21cat12:30:002
3050199627,8cyclictest19656-21cat12:30:002
3050199626,9cyclictest22365-21irqrtprio08:00:252
3050199626,8cyclictest6830-21unixbench_singl09:40:412
3050199623,17cyclictest3607-21sed09:35:292
3050199623,17cyclictest32069-21phc2sys-jitter08:20:312
3050199611,12cyclictest2687-21latency_hist07:20:002
3050199592,11cyclictest8542-21if_enp1s010:55:272
3050199591,12cyclictest17853-21cat11:15:202
209332590,2sleep20-21swapper/211:20:332
3050299582,4cyclictest41-21ksoftirqd/308:40:363
293022580,3sleep00-21swapper/010:30:290
30500995647,4cyclictest25-21ksoftirqd/108:39:291
3050199532,14cyclictest11758-21/usr/sbin/munin08:45:132
3050199530,10cyclictest16207-21ls07:45:372
123591530,1ptp4l401ktimersoftd/310:21:573
123591530,1ptp4l401ktimersoftd/307:27:473
57698520,10rtkit-daemon0-21swapper/110:42:031
30502995246,3cyclictest41-21ksoftirqd/307:14:593
30502995230,11cyclictest1126-21runrttasks12:10:133
30500995246,4cyclictest25-21ksoftirqd/111:35:001
30502995146,3cyclictest41-21ksoftirqd/308:40:003
30502995145,3cyclictest41-21ksoftirqd/311:40:003
30502995043,4cyclictest41-21ksoftirqd/307:20:003
30500995041,5cyclictest25-21ksoftirqd/108:40:101
30502994942,4cyclictest41-21ksoftirqd/307:55:123
30502994843,3cyclictest41-21ksoftirqd/311:30:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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