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2023-12-10 - 01:23
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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 rackaslot8.osadl.org (updated Sat Dec 09, 2023 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195232305273,20sleep20-21swapper/207:06:352
195232305273,20sleep20-21swapper/207:06:342
196132279216,51sleep00-21swapper/007:07:450
196132279216,51sleep00-21swapper/007:07:450
196192264210,42sleep10-21swapper/107:07:501
196192264210,42sleep10-21swapper/107:07:501
197282263230,21sleep30-21swapper/307:09:173
197282263230,21sleep30-21swapper/307:09:173
22362660,0sleep20-21swapper/208:50:292
53602630,0sleep00-21swapper/011:22:520
139652590,0sleep30-21swapper/310:46:283
324902570,0sleep10-21swapper/111:40:391
195422570,1sleep10-21swapper/112:18:111
143172570,0sleep20-21swapper/211:28:512
164532550,0sleep00-21swapper/011:09:360
94332190,0sleep30-21swapper/309:57:023
60832180,0sleep30-21swapper/312:31:303
260932170,0sleep30-21swapper/310:10:113
35982150,0sleep20-21swapper/212:06:152
309062150,0sleep10-21swapper/110:57:341
309062150,0sleep10-21swapper/110:57:341
247612150,1sleep324755-21apt-get09:45:213
60422140,0sleep20-21swapper/211:23:262
324952140,0sleep10-21swapper/110:37:561
1991199133,4cyclictest19982-21systemd-journal09:14:551
1991199123,3cyclictest19982-21systemd-journal08:34:591
1991199113,2cyclictest19982-21systemd-journal12:31:291
1991199110,3cyclictest19982-21systemd-journal07:30:001
1990699119,2cyclictest12-21ksoftirqd/008:00:000
199432100,0sleep30-21swapper/310:50:293
1991599105,3cyclictest19982-21systemd-journal10:26:502
1991199105,3cyclictest19982-21systemd-journal11:27:441
1991199104,1cyclictest29741-11brltty09:27:351
1991199103,1cyclictest0-21swapper/109:53:231
1991199102,3cyclictest7051-21cat07:50:241
1991199102,3cyclictest3758-21snmpd11:09:211
1991199102,3cyclictest25769-21date12:00:001
1991199102,2cyclictest25886-21sed09:45:271
1991199102,1cyclictest0-21swapper/110:40:211
1991199100,3cyclictest24262-21ps09:20:271
1991199100,3cyclictest19982-21systemd-journal09:04:551
1991199100,2cyclictest502-21systemd-logind07:22:511
8827290,0sleep00-21swapper/009:05:290
199209997,1cyclictest34-21ksoftirqd/308:10:003
199209996,2cyclictest34-21ksoftirqd/311:25:003
199119992,4cyclictest23838-21idleruntime-cro08:30:001
199119992,3cyclictest3758-21snmpd10:52:271
199119992,2cyclictest0-21swapper/110:10:311
199119992,1cyclictest0-21swapper/112:29:351
199119990,3cyclictest19982-21systemd-journal12:35:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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