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2021-07-26 - 19:04

ARMv7 Processor rev 2 (v7l), Linux 3.12.61-rt81 (Profile)

Latency plot of system in rack #4, slot #2
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 20 highest latencies:
System rack4slot2.osadl.org (updated Mon Jul 26, 2021 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
551501130irq/52-da8xx_lc24862-21df07:05:080
55150910irq/52-da8xx_lc1437-21/usr/sbin/munin10:45:290
81250880irq/58-4a10000023360-21meminfo08:35:410
81250870irq/58-4a10000014414-21seq08:10:030
81250860irq/58-4a10000012655-21chrt11:20:050
81250850irq/58-4a1000005738-21seq07:42:580
55150850irq/52-da8xx_lc9411-21/usr/sbin/munin07:55:110
81250840irq/58-4a1000009142-21kworker/0:311:11:550
81250840irq/58-4a1000008572-21/usr/sbin/munin09:31:330
81250830irq/58-4a10000028691-21fschecks_count10:30:200
81250830irq/58-4a10000020724-21idleruntime-cro11:44:460
81250830irq/58-4a10000015481-21kworker/0:310:11:510
81250830irq/58-4a10000013872-21kworker/0:209:49:570
81250820irq/58-4a1000003580-21seq09:14:550
81250820irq/58-4a1000002797-21apt-get07:34:570
81250820irq/58-4a10000013313-21chrt08:05:360
81150820irq/57-4a10000022611-21grep11:50:070
81150820irq/57-4a10000016340-21df_abs08:15:130
81150820irq/57-4a10000015481-21kworker/0:310:20:310
81250810irq/58-4a10000031907-21kworker/0:112:19:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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