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2022-07-01 - 01:05

ARM Broadcom BCM2708 @700 MHz, Linux 4.1.15-rt15 (Profile)

Latency plot of system in rack #7, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 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 10 highest latencies:
System rack7slot3.osadl.org (updated Fri Apr 06, 2018 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14816214324,90sleep014870-21users19:06:200
9738211011,12sleep09741-21munin-node00:26:000
9414210921,11sleep09442-21if_err_eth120:41:120
14496210813,11sleep014522-21cstates22:50:550
7330210611,11sleep07338-21munin-node22:26:060
28661210611,14sleep028700-21fschecks_time19:56:090
10640210512,12sleep010675-21cat20:45:560
7194210415,11sleep07231-21uname00:16:230
3754210411,11sleep03761-21unixbench_singl22:11:460
30422210411,11sleep030443-21cpu23:45:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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