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2022-05-28 - 16:48

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 Sat May 28, 2022 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1711921690,2sleep11452599cyclictest12:28:581
2516921610,2sleep11452599cyclictest11:28:441
76721200,1sleep1763-21sshd11:07:351
139621190,1sleep11395-21sshd10:38:521
2445721170,2sleep31452799cyclictest10:24:063
1100421110,1sleep311001-21sshd12:27:163
2791521100,2sleep227914-21systemd12:20:532
44122940,1sleep24411-21grepconf.sh11:43:452
44122940,1sleep24411-21grepconf.sh11:43:452
94112820,1sleep220022-21kworker/2:411:12:132
258042820,1sleep3421rcuc/311:38:523
104832810,1sleep0141rcuc/010:43:320
33892800,1sleep1606-21systemd-journal09:47:201
94572790,0sleep30-21swapper/311:43:583
94572790,0sleep30-21swapper/311:43:583
27852770,0sleep3421rcuc/311:58:093
171592770,1sleep017146-21sshd11:08:180
10402770,2sleep11452599cyclictest10:04:241
97412760,1sleep39724-21bash11:32:233
301372760,1sleep030138-21sshd09:58:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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