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2026-06-19 - 03:37
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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 100 highest latencies:
System rack5slot2.osadl.org (updated Fri Jun 19, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324582200184,12sleep10-21swapper/119:08:321
324512195178,13sleep00-21swapper/019:08:260
323252195179,11sleep30-21swapper/319:06:483
323192165145,15sleep20-21swapper/219:06:432
38792450,0sleep00-21swapper/023:04:350
180802120,0sleep20-21swapper/222:23:482
83292100,0sleep00-21swapper/000:25:480
327629992,3cyclictest18315-21perf20:50:010
327629973,4cyclictest6814-21munin-run00:10:000
327629970,3cyclictest12814-21perf23:25:010
3129960,2cyclictest0-21swapper/320:40:173
3434250,0sleep20-21swapper/200:24:102
327679951,3cyclictest0-21swapper/122:15:111
327679950,5cyclictest0-21swapper/122:48:341
327679950,5cyclictest0-21swapper/122:04:461
327679950,5cyclictest0-21swapper/120:45:191
327679950,5cyclictest0-21swapper/100:09:021
327629950,5cyclictest0-21swapper/022:12:310
327629950,1cyclictest5929-21munin-run19:20:000
327629950,0cyclictest0-21swapper/021:50:590
3129955,0cyclictest0-21swapper/322:39:383
3129952,3cyclictest13727-21ssh21:34:253
3129952,3cyclictest0-21swapper/322:05:193
3129950,5cyclictest0-21swapper/323:57:453
3129950,5cyclictest0-21swapper/322:30:543
3129950,5cyclictest0-21swapper/321:38:223
3129950,4cyclictest24188-21perl21:00:133
3129950,1cyclictest1350-21memory22:15:163
3069952,3cyclictest31-21ksoftirqd/200:30:122
3069951,2cyclictest0-21swapper/219:40:112
3069950,5cyclictest20606-21ssh23:28:342
3069950,5cyclictest20606-21ssh23:28:342
3069950,5cyclictest0-21swapper/223:01:392
3069950,5cyclictest0-21swapper/222:07:232
3069950,4cyclictest0-21swapper/220:10:102
3369240,0sleep10-21swapper/123:35:251
327679944,0cyclictest0-21swapper/123:23:381
327679944,0cyclictest0-21swapper/122:57:181
327679944,0cyclictest0-21swapper/121:53:171
327679942,1cyclictest0-21swapper/119:35:111
327679941,2cyclictest0-21swapper/123:00:101
327679941,2cyclictest0-21swapper/122:35:121
327679941,2cyclictest0-21swapper/121:35:111
327679941,2cyclictest0-21swapper/120:30:111
327679941,2cyclictest0-21swapper/119:25:111
327679941,2cyclictest0-21swapper/119:20:101
327679941,2cyclictest0-21swapper/100:30:101
327679941,2cyclictest0-21swapper/100:25:001
327679941,2cyclictest0-21swapper/100:10:121
327679941,1cyclictest0-21swapper/121:20:111
327679940,4cyclictest0-21swapper/121:10:561
327679940,0cyclictest0-21swapper/122:27:031
327679940,0cyclictest0-21swapper/121:43:491
327629944,0cyclictest0-21swapper/023:36:280
327629944,0cyclictest0-21swapper/022:42:030
327629944,0cyclictest0-21swapper/021:56:220
327629944,0cyclictest0-21swapper/021:15:290
327629944,0cyclictest0-21swapper/000:03:320
327629943,1cyclictest29195-21ssh22:45:100
327629943,0cyclictest7152-21grep23:05:220
327629942,1cyclictest838-21ssh23:18:550
327629942,1cyclictest32716-21ssh23:50:160
327629941,2cyclictest25503-21ssh21:40:120
327629940,4cyclictest0-21swapper/023:30:110
327629940,4cyclictest0-21swapper/022:36:060
327629940,4cyclictest0-21swapper/022:30:120
327629940,4cyclictest0-21swapper/022:25:110
327629940,4cyclictest0-21swapper/021:45:120
327629940,4cyclictest0-21swapper/019:30:100
327629940,4cyclictest0-21swapper/000:15:070
327629940,3cyclictest8628-21/usr/sbin/munin20:30:120
327629940,3cyclictest2819-21latency_hist00:40:000
327629940,3cyclictest27278-21sh23:47:400
327629940,3cyclictest23488-21/usr/sbin/munin21:00:140
327629940,3cyclictest205-21systemd-journal21:25:010
327629940,3cyclictest18931-21cron00:00:010
327629940,3cyclictest1715-21df20:15:110
327629940,3cyclictest16029-21perl21:35:140
327629940,3cyclictest15251-21rm00:30:000
327629940,3cyclictest14894-21date21:35:010
327629940,3cyclictest1146-21apt-get22:00:010
327629940,3cyclictest0-21swapper/023:42:470
327629940,3cyclictest0-21swapper/020:00:090
327629940,3cyclictest0-21swapper/019:45:100
327629940,1cyclictest973-21munin-run20:15:000
31271240,0sleep10-21swapper/123:17:411
3129944,0cyclictest0-21swapper/323:05:053
3129943,1cyclictest29637-21/usr/sbin/munin00:05:133
3129943,1cyclictest1244-21grep19:10:133
3129942,1cyclictest8393-21cron19:25:003
3129942,1cyclictest19593-21wget00:00:123
3129941,1cyclictest0-21swapper/323:45:123
3129941,1cyclictest0-21swapper/321:05:123
3129940,4cyclictest8805-21ssh22:03:183
3129940,4cyclictest57150irq/125-eth019:35:103
3129940,4cyclictest31069-21ssh00:37:243
3129940,4cyclictest29331-21/usr/sbin/munin21:10:143
3129940,4cyclictest25401-21apt-get23:15:113
3129940,4cyclictest24926-21kernelversion21:55:163
3129940,4cyclictest17386-21ssh21:51:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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