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2021-06-20 - 03:19

VIA Samuel 2, Linux 3.18.9-rt4 (Profile)

Latency plot of system in rack #3, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p98 -i200 -h1000 -q
Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack3slot7.osadl.org (updated Sun Jun 20, 2021 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140130ksoftirqd/04836-21kworker/0:219:04:180
14991390watchdog/02922-21munin-node20:59:110
14991290watchdog/06331-21unixbench_singl21:09:190
14991290watchdog/04154-21awk19:14:110
14991280watchdog/012960-21munin-node19:44:030
14991260watchdog/017937-21grep21:49:030
14991240watchdog/05780-21egrep19:19:150
14991230watchdog/029390-21munin-node00:14:230
14991230watchdog/025521-21if_err_eth020:24:230
14991220watchdog/012224-21aten_r3power_en19:39:270
14991210watchdog/07634-21timerandwakeup19:24:270
14991200watchdog/03353-21runrttasks23:01:230
14991180watchdog/025495-21df22:14:110
14991170watchdog/024814-21nfs_client23:59:190
14991140watchdog/03353-21runrttasks20:16:230
14991140watchdog/030636-21cstates22:29:270
14991140watchdog/024144-21runrttasks23:58:390
14991130watchdog/023687-21seq20:19:150
14991120watchdog/0199272chrt20:05:470
14991100watchdog/09386-21mailstats23:09:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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