[forge-dev] Improving the performance of weld for micro-deployments.

[Thomas Frühbeck]

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.
>