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2022-10-03 - 12:37

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 Oct 02, 2022 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28977222432,57sleep00-21swapper/007:08:250
29233991666,108cyclictest31699-21apt-get07:22:050
29233991608,132cyclictest1302-21snmpd08:30:080
29233991597,114cyclictest799-21dbus-daemon12:10:430
29233991586,92cyclictest8337-21apt-get07:57:030
29233991578,110cyclictest11837-21munin-run12:20:040
29233991577,89cyclictest30153-21apt-get09:18:060
29233991576,129cyclictest5139-21ntp_states07:40:460
292339915724,112cyclictest1302-21snmpd08:51:220
29233991566,92cyclictest546-21apt-get09:32:040
292339915640,106cyclictest23481-21sshd10:56:300
292339915545,93cyclictest3650irq/20-4900000009:20:320
292339915541,102cyclictest17396-21apt-get08:31:090
29233991548,102cyclictest2095-21node11:20:390
29233991547,124cyclictest1374-21nginx10:50:450
29233991547,113cyclictest799-21dbus-daemon12:20:560
29233991546,107cyclictest12506-21cat08:10:050
292339915428,106cyclictest965-21/usr/sbin/munin07:25:270
292339915425,108cyclictest15132-21wget08:20:180
29233991537,90cyclictest28266-21ntp_states11:15:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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