We don't need to recall the Schrödinger cat for this kind of experiments !! Lincoln do you see that startup time is really higher when you start YourKit ??

Which version are you using ?? In my experience the last one has a really good agent that impact not so much on performance in tracing or instrumentation.



2013/1/30 Thomas Frühbeck <fruehbeck@aon.at>
IMHO both tools have their up/downsides.
  - instrumentation gives you a quite precise _relative_ performance
indicator
  - sampling gives a _relatively precise_ performance indicator
both have impact on the runtime, so you always have to account for the
"uncertainty principle" :-)

Am 29.01.2013 23:33, schrieb Stuart Douglas:
> Tracing is pretty useless at identifying slow parts, as the overhead it
> adds distorts the profile too much. The only thing it is really good for
> is identifying methods that are called too often.
>
> Sampling is generally much better.
>
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