From: "Chamila W." <lists@...>
Date: 2013-06-23T14:54:25+09:00
Subject: Re: Ruby DTrace (on OSX Leopard)

Tim Becker wrote in post #579367:
> Has anyone had any luck getting it to run?

I was able to run it by referring to 
http://www.ploughthroughruby.co.uk/2013/04/10/dtrace-probes-in-ruby-2.html/.
When you are running it remember to change
sudo dtrace -c 'ruby test.rb' -Zn 'ruby*::method-entry { 
@[copyinstr(arg0)] = count(); }'
with ruby*:::method-entry

>
> Neither Instruments nor dtrace -l shows up any of the Joyent probes
> that are supposed to be there. I guess I'm just doing something wrong,
> but I can only find little blog articles with people cheering that OSX
> contains DTrace, no examples of it actually in use.
>
> Running the example script in /Developer/Examples/Ruby/DTrace yield me:
>
> dtrace: failed to compile script ./print_calls.d: line 4: probe
> description ruby*:::function-entry does not match any probes
>
> Any ideas?
>    -tim

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