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2023-01-29 - 06:06

ARM TI OMAP3359 @1000 MHz, Linux 4.19.94-rt39 (Profile)

Latency plot of system in rack #7, slot #8
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack7slot8 (updated Sun Jan 29, 2023 01:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310792957183,454sleep030949-21kworker/0:019:09:040
31256991776,115cyclictest11893-21apt-get20:02:150
31256991747,111cyclictest24694-21fw_forwarded_lo22:55:320
312569917312,114cyclictest20267-21apt-get22:37:170
31256991718,106cyclictest10963-21diskstats00:10:300
31256991717,103cyclictest2522-21df21:30:210
31256991706,16cyclictest10918-21apt-get22:07:180
312569916826,103cyclictest24847-21wget20:50:170
31256991677,108cyclictest4283-21cat19:30:080
312569916738,95cyclictest17490-21cpu20:20:210
31256991657,104cyclictest4114-21apt-get19:32:140
31256991639,117cyclictest22192-21sh22:45:310
312569916323,120cyclictest27452-21snmpd00:33:450
31256991629,103cyclictest15231-21ntp_states20:10:460
31256991619,100cyclictest23453-21fw_forwarded_lo22:50:310
31256991616,104cyclictest1317-21runrttasks22:22:170
312569916155,96cyclictest6908-21cron19:40:020
312569916120,121cyclictest5654-21nginx19:23:240
31256991609,131cyclictest2616-21seq23:35:590
31256991609,109cyclictest18163-21apt-config00:40:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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