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2023-12-03 - 02:02
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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 Sat Dec 02, 2023 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226372202185,12sleep30-21swapper/307:06:083
228092186170,11sleep10-21swapper/107:08:241
227582178162,12sleep00-21swapper/007:07:420
226012170154,12sleep20-21swapper/207:05:392
279782440,0sleep10-21swapper/110:34:571
14862440,0sleep20-21swapper/209:59:112
29992420,1sleep1211ktimersoftd/109:20:061
132032420,0sleep20-21swapper/209:45:212
66212180,0sleep10-21swapper/110:42:051
270432120,0sleep00-21swapper/010:14:370
190372100,0sleep00-21swapper/010:29:230
231159973,4cyclictest8689-21awk07:45:000
231309960,6cyclictest0-21swapper/310:39:523
231249960,5cyclictest11263-21apt-get10:05:012
231309955,0cyclictest0-21swapper/311:30:313
231309955,0cyclictest0-21swapper/311:24:063
231309955,0cyclictest0-21swapper/310:29:233
231309955,0cyclictest0-21swapper/309:11:153
231309951,4cyclictest27386-21apt-get09:15:183
231309951,3cyclictest0-21swapper/312:05:173
231309950,5cyclictest0-21swapper/311:07:143
231309950,4cyclictest11799-21apt-get09:25:233
231309950,4cyclictest0-21swapper/311:00:243
231249955,0cyclictest26109-21kworker/2:211:56:142
231249955,0cyclictest26109-21kworker/2:211:45:032
231249955,0cyclictest26109-21kworker/2:211:22:392
231249955,0cyclictest26109-21kworker/2:211:11:282
231249955,0cyclictest26109-21kworker/2:209:30:442
231249955,0cyclictest26109-21kworker/2:209:19:312
231249955,0cyclictest26109-21kworker/2:207:49:572
231249955,0cyclictest26109-21kworker/2:207:38:462
231249950,5cyclictest0-21swapper/212:11:462
231249950,5cyclictest0-21swapper/211:27:502
231249950,5cyclictest0-21swapper/210:15:192
231249950,5cyclictest0-21swapper/210:04:202
231209951,2cyclictest0-21swapper/111:05:241
231209950,5cyclictest0-21swapper/110:00:191
231209950,5cyclictest0-21swapper/109:46:471
231159954,1cyclictest0-21swapper/009:53:290
231159951,4cyclictest10260-21basename10:45:010
231159950,5cyclictest0-21swapper/012:21:010
231159950,5cyclictest0-21swapper/012:13:140
231159950,5cyclictest0-21swapper/011:54:410
231159950,5cyclictest0-21swapper/011:30:410
231159950,2cyclictest23738-21perf08:15:000
231159950,0cyclictest0-21swapper/012:17:490
231309944,0cyclictest0-21swapper/312:31:543
231309944,0cyclictest0-21swapper/311:35:183
231309944,0cyclictest0-21swapper/310:19:043
231309944,0cyclictest0-21swapper/309:56:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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