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2025-05-03 - 01:51
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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 20 highest latencies:
System rack0slot7.osadl.org (updated Sat May 03, 2025 00:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
372698599420420,0cyclictest0-21swapper/1220:03:294
372695799348345,2cyclictest3563405-21kworker/u64:2+events_unbound20:03:2810
372695099309309,0cyclictest0-21swapper/223:26:198
372695099309309,0cyclictest0-21swapper/200:15:308
372695099309309,0cyclictest0-21swapper/200:05:568
372695099308308,0cyclictest0-21swapper/222:33:368
372695099308308,0cyclictest0-21swapper/222:04:178
372695099308308,0cyclictest0-21swapper/200:23:468
372697599291290,1cyclictest2233-21snmpd20:03:2915
372694299290283,6cyclictest43375-21Renderer00:24:100
372694299290282,7cyclictest43375-21Renderer23:36:300
372697599289283,5cyclictest10189-21Xorg19:18:0815
372697599289282,6cyclictest10189-21Xorg00:01:0415
372695599289283,5cyclictest10189-21Xorg20:18:149
3726999992880,1cyclictest0-21swapper/1500:15:007
3726990992880,284cyclictest27494-21Compositor21:58:405
372698599288283,4cyclictest11153-21gnome-shell22:02:594
372698099288282,5cyclictest43375-21Renderer19:12:263
372697799288283,4cyclictest43375-21Renderer21:43:412
372697799288282,5cyclictest43375-21Renderer20:58:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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