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2022-05-29 - 14:22

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #9, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
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 10 highest latencies:
System rack9slot0.osadl.org (updated Sun May 29, 2022 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
919521030,2sleep32613699cyclictest21:23:513
59642810,1sleep0141rcuc/022:41:300
131942780,0sleep00-21swapper/022:37:370
131942780,0sleep00-21swapper/022:37:370
181112740,1sleep2598-21systemd-journal23:58:172
195672710,1sleep1251ktimersoftd/100:18:161
151982690,1sleep2331rcuc/223:21:232
151982690,1sleep2331rcuc/223:21:232
41752680,2sleep32613699cyclictest00:20:513
41752680,2sleep32613699cyclictest00:20:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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