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2025-02-18 - 23:54
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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 rack5slot2.osadl.org (updated Tue Feb 18, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253612206190,11sleep10-21swapper/107:09:161
253862188154,12sleep00-21swapper/007:09:310
252462185169,11sleep30-21swapper/307:07:453
251012179161,13sleep20-21swapper/207:05:522
251662680,0sleep061-21kswapd012:18:090
212862480,0sleep20-21swapper/209:27:082
74102460,0sleep30-21swapper/310:27:173
56192440,0sleep30-21swapper/307:30:233
128882440,0sleep00-21swapper/010:46:480
66072430,0sleep10-21swapper/111:16:491
86772310,0sleep28680-21fschecks_count09:20:162
172392110,0sleep10-21swapper/110:32:091
55892100,0sleep20-21swapper/211:16:102
219882100,0sleep30-21swapper/312:34:053
255859992,3cyclictest8909-21perf07:40:010
255859992,3cyclictest8909-21perf07:40:000
255859991,4cyclictest27315-21basename11:44:590
5390280,1sleep25393-21unixbench_singl11:50:152
4578280,0sleep10-21swapper/108:35:141
255969980,7cyclictest0-21swapper/310:35:133
255859970,4cyclictest32694-21munin-run12:05:000
255969964,2cyclictest31025-21kworker/3:009:31:113
255969960,5cyclictest31628-21apt-get07:20:023
255859960,3cyclictest2960-21idleruntime-cro11:49:590
255969950,5cyclictest24556-21ssh09:29:093
255969950,5cyclictest0-21swapper/309:17:453
255969950,4cyclictest17685-21awk09:25:003
255969950,0cyclictest0-21swapper/311:25:213
255919955,0cyclictest0-21swapper/212:03:492
255919955,0cyclictest0-21swapper/211:32:402
255919954,1cyclictest29516-21ssh12:37:352
255919950,5cyclictest6357-21ssh09:19:212
255919950,5cyclictest0-21swapper/210:09:362
255919950,4cyclictest27246-21perl10:20:162
255869954,1cyclictest0-21swapper/111:26:071
255869951,2cyclictest0-21swapper/109:55:131
255869950,5cyclictest0-21swapper/112:28:141
255869950,5cyclictest0-21swapper/112:15:531
255869950,5cyclictest0-21swapper/111:40:401
255859955,0cyclictest0-21swapper/010:15:560
255859951,4cyclictest1422-21munin-run08:29:590
255859951,2cyclictest0-21swapper/011:35:120
255859950,5cyclictest0-21swapper/011:57:570
1903250,0sleep10-21swapper/110:40:171
255969944,0cyclictest26387-21kworker/3:211:11:583
255969944,0cyclictest0-21swapper/312:16:433
255969944,0cyclictest0-21swapper/311:16:453
255969943,1cyclictest14065-21/usr/sbin/munin07:50:173
255969941,2cyclictest0-21swapper/311:24:593
255969940,4cyclictest847-21perl09:50:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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