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2023-02-06 - 06:52

x86 VIA QuadCore L4700 @1200 MHz, Linux 3.18.43-rt46 (Profile)

Latency plot of system in rack #b, slot #4
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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rackbslot4.osadl.org (updated Mon Feb 06, 2023 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1634999792,71cyclictest30385-21ksmtuned21:52:072
1634999792,71cyclictest10053-21ssh22:08:432
1634999752,68cyclictest683-21sshd23:09:262
1634999732,65cyclictest14779-21ssh23:46:022
1634999703,61cyclictest17084-21ssh21:33:142
1634999692,60cyclictest5192-21/usr/sbin/munin20:02:082
1634999682,59cyclictest5180-21ntp_offset22:47:052
121322680,3sleep3361ktimersoftd/321:27:003
121322680,3sleep3361ktimersoftd/321:27:003
1634999673,58cyclictest29605-21/usr/sbin/munin22:37:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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