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2022-05-28 - 14:47

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 Sat May 28, 2022 02:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17378215600,10sleep017381-21latencyplot19:10:010
174459914064,20cyclictest29642-21apt-get00:12:140
174459913448,34cyclictest1623-21cat22:20:430
174459913359,53cyclictest32512-21sendmail-msp00:20:030
174459913068,41cyclictest764-21systemd-journal20:22:220
174459912656,48cyclictest1720-21sed00:25:080
174459912655,51cyclictest29682-21seq19:55:540
174459912655,20cyclictest29641-21latency_hist00:10:050
174459912650,22cyclictest14506-21ntp_states23:10:440
174459912553,21cyclictest9929-21apt-get22:57:060
174459912547,40cyclictest3078-21latency_hist20:20:040
174459912454,37cyclictest27196-21diskstats00:00:370
174459912352,49cyclictest16635-21seq23:20:120
174459912277,36cyclictest1293-21snmpd23:50:570
174459912251,40cyclictest10141-21ntp_states20:45:380
174459912247,56cyclictest1293-21snmpd00:27:010
174459912178,33cyclictest18066-21runrttasks23:25:170
174459912164,40cyclictest5753-21latency_hist00:40:050
174459912152,47cyclictest4996-21df20:25:280
174459912151,50cyclictest8388-21munin-run20:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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