add a "vmstat" agent to the maven activemq performance plugin so we can track
the CPU, IO, RAM use on the machine we are running the test on
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Key: AMQ-744
URL: https://issues.apache.org/activemq/browse/AMQ-744
Project: ActiveMQ
Type: Improvement
Components: Performance Test
Reporter: james strachan
Assigned to: Adrian Co
Fix For: 4.1
When running a performance test it would be good to spawn off a process to run
'vmstat' which works on linux and solaris (the flags may differ etc) which
outputs the amout of CPU use in system/user code and how much is idle together
with RAM & IO numbers.
I'd be good to include in each snapshot whatever vmstat numbes we can find so
we can see how the box was doing as the test was running.
e.g.
<sample index="5" ... >
<machine cpuSystem="50" cpuUser="25" cpuIdle="25" ram="44" io="1000"/>
</sample>
Note that we may wanna make a few different machine monitoring agents using
different tools - so lets make it pluggable - let 'em write whatever XML they
can - though we should be able to get linux and solaris done (linux only would
be fine for now)
To call vmstat we'll need to do a System.exec() then parse the results etc
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