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2025-04-02 - 08:19
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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 rackeslot3.osadl.org (updated Wed Apr 02, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239455299726,64cyclictest0-21swapper/123:18:541
2394552996562,2cyclictest0-21swapper/122:51:591
2394552996562,2cyclictest0-21swapper/122:00:281
239455299650,64cyclictest0-21swapper/123:41:541
2394552996462,1cyclictest0-21swapper/121:49:291
2394552996462,1cyclictest0-21swapper/121:49:291
2394552996462,1cyclictest0-21swapper/120:57:301
2394552996462,1cyclictest0-21swapper/120:44:331
239455299640,63cyclictest0-21swapper/119:25:351
239455299640,2cyclictest2392769-21kworker/1:219:16:291
2394552996361,1cyclictest0-21swapper/120:23:051
2394552996361,1cyclictest0-21swapper/119:52:041
239455299630,62cyclictest0-21swapper/122:16:541
239455299630,62cyclictest0-21swapper/121:23:291
2394552996259,1cyclictest0-21swapper/121:08:291
2394552996157,2cyclictest2460877-21cron23:00:001
2394552996141,19cyclictest2323756-1kworker/1:2H23:10:001
2394552996139,20cyclictest2478148-21kworker/1:100:20:151
2394552996135,25cyclictest2416384-21kworker/1:120:45:151
239455299610,60cyclictest0-21swapper/119:56:301
2394552996057,2cyclictest0-21swapper/100:00:291
2394552996043,15cyclictest2323756-1kworker/1:2H21:15:141
239455299600,59cyclictest0-21swapper/121:56:291
2394552995957,1cyclictest0-21swapper/121:00:261
2394552995956,2cyclictest0-21swapper/121:42:281
2394552995940,17cyclictest2445482-21kworker/1:122:29:231
2394577995844,2cyclictest1130424-21kworker/3:000:00:293
2394552995855,2cyclictest0-21swapper/100:30:351
2394552995843,14cyclictest2445482-21kworker/1:123:14:551
2394552995842,15cyclictest2323756-1kworker/1:2H20:04:001
2394552995841,16cyclictest2445482-21kworker/1:122:45:061
2394552995841,13cyclictest2406418-21cron19:45:011
2394552995840,17cyclictest2392769-21kworker/1:219:20:161
239455299580,54cyclictest2438745-21/usr/sbin/munin21:35:171
2394552995742,14cyclictest2445482-21kworker/1:123:20:181
2394552995741,15cyclictest2416384-21kworker/1:120:50:291
2394552995741,15cyclictest2416384-21kworker/1:120:31:291
2394552995741,15cyclictest2416384-21kworker/1:120:31:281
2394552995741,15cyclictest2412940-21kworker/1:220:15:171
2394552995741,15cyclictest2392769-21kworker/1:219:45:221
2394552995740,15cyclictest2323756-1kworker/1:2H19:30:181
2394552995739,17cyclictest2392769-21kworker/1:219:10:161
2394552995739,17cyclictest2392769-21kworker/1:219:10:151
2394552995739,16cyclictest2323756-1kworker/1:2H20:10:131
2394552995641,14cyclictest2478148-21kworker/1:100:39:551
2394552995641,14cyclictest2478148-21kworker/1:100:10:111
2394552995641,14cyclictest2445482-21kworker/1:122:40:141
2394552995639,16cyclictest2445482-21kworker/1:123:00:301
2394552995639,16cyclictest2323756-1kworker/1:2H22:24:231
2394552995639,16cyclictest2323756-1kworker/1:2H21:50:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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