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2025-05-15 - 00:04
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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 rack0slot2.osadl.org (updated Wed May 14, 2025 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194401126251,7sleep50-21swapper/515:35:015
194391925320,29sleep70-21swapper/715:33:427
194388725141,7sleep40-21swapper/415:33:154
194441199480,46cyclictest2616311-21latency_hist21:06:217
194407724434,7sleep60-21swapper/615:35:586
1944411993632,3cyclictest2102264-21latency_hist16:51:217
194441199350,33cyclictest2215152-21latency_hist17:46:217
194441199340,32cyclictest2286936-21latency_hist18:21:217
194441199330,31cyclictest1999438-21latency_hist16:01:217
1944405993230,2cyclictest2369712-21kworker/u16:5+events_unbound19:53:345
1944405993129,2cyclictest2163921-21kworker/u16:3+events_unbound18:53:345
1944405993127,3cyclictest2451882-21fwupd19:42:445
25874572300,1chrt2587454-21kernelversion20:51:357
25874572300,1chrt2587454-21kernelversion20:51:357
1944411993028,1cyclictest0-21swapper/716:26:227
1944405993027,2cyclictest2409765-21kworker/u16:6+events_unbound19:26:345
25395192290,1chrt2539520-21tr20:26:437
19512062290,0chrt0-21swapper/415:36:434
1944409992926,2cyclictest2009669-21kworker/u16:0+flush-8:016:14:226
1944405992926,2cyclictest2080689-21kworker/u16:2+flush-8:019:01:375
22050952280,1chrt2205098-21sed17:41:217
1944405992826,2cyclictest2533952-21kworker/u16:2+events_unbound20:54:305
1944405992826,2cyclictest2533952-21kworker/u16:2+events_unbound20:54:305
1944405992826,2cyclictest2533952-21kworker/u16:2+events_unbound20:25:235
1944405992826,2cyclictest2369141-21kworker/u16:1+events_unbound19:14:335
1944405992826,2cyclictest2163921-21kworker/u16:3+events_unbound19:09:515
1944401992825,2cyclictest2080689-21kworker/u16:2+events_unbound16:56:384
1944401992825,2cyclictest2080689-21kworker/u16:2+events_unbound16:56:384
1944401992823,4cyclictest2451887-21packagekitd19:42:434
1944409992725,2cyclictest2533952-21kworker/u16:2+flush-8:021:01:386
1944409992725,2cyclictest2409765-21kworker/u16:6+flush-8:020:56:216
1944409992725,2cyclictest2409765-21kworker/u16:6+flush-8:020:56:216
1944409992725,2cyclictest2080689-21kworker/u16:2+flush-8:017:24:316
1944409992725,2cyclictest1988205-21kworker/u16:4+events_unbound16:04:236
1944405992725,2cyclictest2544506-21kworker/u16:1+flush-8:020:50:305
1944405992725,2cyclictest2409765-21kworker/u16:6+events_unbound19:38:235
1944405992725,2cyclictest2265448-21kworker/u16:1+events_unbound18:39:305
1944405992725,2cyclictest2132644-21kworker/u16:0+events_unbound17:19:385
1944405992725,2cyclictest2029273-21kworker/u16:2+flush-8:016:23:355
1944405992725,2cyclictest2009669-21kworker/u16:0+events_unbound16:13:235
1944405992724,2cyclictest2409765-21kworker/u16:6+events_unbound19:32:225
1944409992624,2cyclictest2544506-21kworker/u16:1+flush-8:020:31:426
1944409992624,2cyclictest2132644-21kworker/u16:0+flush-8:017:43:276
1944409992622,3cyclictest2163921-21kworker/u16:3+events_unbound17:51:416
1944405992624,2cyclictest2585543-21kworker/u16:0+flush-8:021:00:555
1944405992624,2cyclictest2544506-21kworker/u16:1+events_unbound20:46:185
1944405992624,2cyclictest2544506-21kworker/u16:1+events_unbound20:39:065
1944405992624,2cyclictest2503603-21kworker/u16:1+events_unbound20:17:305
1944405992624,2cyclictest2409765-21kworker/u16:6+events_unbound21:01:305
1944405992624,2cyclictest2409765-21kworker/u16:6+events_unbound20:11:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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