A new option for test purposes is included in JDK 1.7.0_40 and up and is
called Java Mission Control. It is located in the JDK as /bin/jmc.exe.
With it you can connect to a local java process, or remotely through RMI,
and record all kinds of performance characteristics in a Flight Recording.
Such a flight recording can be a defined for a limited time, or it can
buffer the recording to record only the latest x minutes. Overhead depends
on the monitoring template used, but is typically around 2%. These
recordings can then be browsed, analyzed and queried in a pretty good
interface after the recording has been saved.
To do so, you need to have the following options in your project.clj, and
run your project on a JDK > 1.7.0_40
:jvm-opts [
; add Flight Recording options
"-XX:+UnlockCommercialFeatures"
"-XX:+FlightRecorder"
; add RMI connection (to connect to process remotely or
running as service/daemon)
; this example has NO authentication enabled through the
RMI port
"-Dcom.sun.management.jmxremote"
"-Dcom.sun.management.jmxremote.port=8888"
"-Dcom.sun.management.jmxremote.authenticate=false"
"-Dcom.sun.management.jmxremote.ssl=false"]
On Friday, June 20, 2014 3:05:05 PM UTC+2, ru wrote:
>
> Hi all,
>
> What performance profiling instrument somebody can recommend for Clojure
> programs and corresponding documents, articles or tutorials. Thanks in
> advance.
>
> Sincerely,
> Ru
>
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