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2022-05-28 - 15:08

x86 Intel Core i5-7300U @2600 MHz, Linux 5.0.21-rt16 (Profile)

Latency plot of system in rack #1, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack1slot1.osadl.org (updated Sat May 28, 2022 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67582210151,21sleep30-21swapper/307:06:323
66752206174,21sleep20-21swapper/207:05:272
67242203149,21sleep10-21swapper/107:06:071
69142197158,25sleep00-21swapper/007:08:350
273342170,0sleep10-21swapper/109:46:081
194862140,0sleep20-21swapper/212:28:132
711799129,2cyclictest9-21ksoftirqd/007:25:000
7117991211,1cyclictest9-21ksoftirqd/011:15:010
7117991211,1cyclictest9-21ksoftirqd/011:15:000
7117991211,1cyclictest9-21ksoftirqd/007:49:590
7140991110,1cyclictest35-21ksoftirqd/309:45:013
7140991110,1cyclictest35-21ksoftirqd/307:45:003
7117991110,1cyclictest9-21ksoftirqd/010:40:000
711799110,5cyclictest14357-21perf11:20:000
85532100,0sleep07609-21diskmemload10:10:470
714099108,1cyclictest35-21ksoftirqd/308:44:593
712999107,2cyclictest16570-21sh09:26:442
711799109,1cyclictest9-21ksoftirqd/012:00:000
711799109,1cyclictest9-21ksoftirqd/010:55:000
711799108,1cyclictest9-21ksoftirqd/011:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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