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2022-10-03 - 14:37

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

Latency plot of system in rack #8, 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 20 highest latencies:
System rack8slot0.osadl.org (updated Mon Oct 03, 2022 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
964621350,1sleep0141rcuc/011:25:300
1845821240,0sleep318460-21sshd11:52:473
2524121170,0sleep125156-21sshd12:14:051
2622921130,2sleep30-21swapper/310:32:103
892821020,0sleep10-21swapper/106:54:141
146022820,1sleep20-21swapper/210:20:352
76832800,0sleep30-21swapper/309:29:133
298512770,1sleep2331rcuc/210:49:052
249182770,2sleep11097499cyclictest12:21:061
19542760,0sleep11939-21sshd11:45:031
97642750,0sleep39765-21grepconf.sh10:12:103
183972750,1sleep30-21swapper/311:28:463
138182740,0sleep00-21swapper/011:42:460
138182740,0sleep00-21swapper/011:42:460
89782720,1sleep10-21swapper/109:50:031
46982720,0sleep24684-21bash12:03:242
209302720,0sleep220902-21sshd12:09:372
147532720,0sleep314754-21grep09:44:443
68532710,1sleep16813-21sshd11:19:421
26452710,0sleep20-21swapper/211:19:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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