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2023-02-07 - 19:01

x86 AMD Geode @500 MHz, Linux 4.9.47-rt37-geode (Profile)

Latency plot of system in rack #4, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack4slot3.osadl.org (updated Tue Feb 07, 2023 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24928212314,97sleep024931-21munin-node09:55:580
22656212213,96sleep022699-21munin-node09:50:210
29630211315,84sleep029626-21ntp_states08:30:560
1982210814,16sleep01983-21diskstats12:05:300
26512210414,16sleep026515-21iostat11:40:470
17922210414,16sleep017934-21df09:35:260
14999210414,15sleep014997-21ntp_states07:45:590
14187210314,17sleep03233-21snmpd11:01:590
323210214,15sleep0325-21munin-node08:40:460
21685210214,15sleep021703-21munin-node09:46:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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