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2026-05-16 - 09:17
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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 May 16, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290822199184,11sleep10-21swapper/119:07:231
290812195179,12sleep00-21swapper/019:07:210
290892194159,13sleep30-21swapper/319:07:293
289662168149,14sleep20-21swapper/219:05:522
73082440,0sleep00-21swapper/022:03:440
182412420,0sleep00-21swapper/023:28:200
249402410,0sleep10-21swapper/121:40:201
86282100,0sleep00-21swapper/021:48:360
225282100,0sleep20-21swapper/223:45:482
294489992,3cyclictest29830-21munin-run22:15:010
24276290,0sleep20-21swapper/221:55:342
26528280,0sleep10-21swapper/120:05:151
294599960,0cyclictest0-21swapper/320:35:113
294549965,1cyclictest23683-21diskstats23:15:122
294489962,4cyclictest2112-21perf21:30:010
294489960,3cyclictest25683-21munin-run21:10:010
711250,0sleep10-21swapper/121:13:181
294599955,0cyclictest25422-21kworker/3:121:47:503
294599955,0cyclictest25422-21kworker/3:121:25:293
294599955,0cyclictest0-21swapper/323:45:573
294599955,0cyclictest0-21swapper/322:24:193
294599950,5cyclictest0-21swapper/322:08:453
294599950,5cyclictest0-21swapper/321:51:443
294599950,5cyclictest0-21swapper/321:30:213
294599950,5cyclictest0-21swapper/320:45:393
294599950,5cyclictest0-21swapper/300:30:023
294599950,5cyclictest0-21swapper/300:09:053
294599950,0cyclictest0-21swapper/322:39:533
294549954,1cyclictest21852-21ssh00:17:552
294549951,3cyclictest802-21snmpd23:42:112
294549950,5cyclictest0-21swapper/223:56:582
294549950,5cyclictest0-21swapper/221:13:342
294549950,5cyclictest0-21swapper/200:23:092
294549950,4cyclictest0-21swapper/219:15:122
294549950,0cyclictest0-21swapper/222:40:162
294529951,3cyclictest0-21swapper/123:15:091
294529951,2cyclictest0-21swapper/123:35:111
294529951,2cyclictest0-21swapper/122:45:131
294529951,2cyclictest0-21swapper/120:20:111
294529951,2cyclictest0-21swapper/119:35:081
294529950,5cyclictest0-21swapper/123:45:471
294529950,5cyclictest0-21swapper/121:52:251
294529950,5cyclictest0-21swapper/121:45:451
294529950,5cyclictest0-21swapper/121:30:101
294489955,0cyclictest3-21ksoftirqd/000:25:140
294489955,0cyclictest0-21swapper/022:34:260
294489955,0cyclictest0-21swapper/000:32:170
294489950,5cyclictest0-21swapper/021:34:200
294489950,0cyclictest0-21swapper/023:22:440
28834250,5sleep325674-21diskmemload23:01:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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