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2025-01-18 - 15:14
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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 rackaslot8.osadl.org (updated Sat Jan 18, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229112285253,20sleep00-21swapper/007:07:480
229082284218,23sleep20-21swapper/207:07:452
227662281247,22sleep10-21swapper/107:05:561
228632272214,45sleep30-21swapper/307:07:103
238942590,0sleep30-21swapper/309:46:443
209662590,0sleep10-21swapper/111:15:151
243662580,0sleep30-21swapper/311:39:073
312762570,0sleep00-21swapper/007:25:130
191202570,0sleep10-21swapper/109:42:051
294622560,0sleep30-21swapper/310:36:213
33472550,0sleep23348-21sh11:46:472
128042550,0sleep10-21swapper/111:10:101
42052540,0sleep00-21swapper/012:09:080
327502540,0sleep00-21swapper/009:53:290
37882180,1sleep20-21swapper/209:30:072
313982180,0sleep10-21swapper/110:38:021
206472180,0sleep00-21swapper/009:15:240
101902160,0sleep10-21swapper/110:46:281
46492150,0sleep20-21swapper/211:04:232
302532150,0sleep20-21swapper/212:04:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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