Preliminary review: Adding tracing of I/O calls

[Aleksey Shipilev]

On 11/07/2012 09:02 AM, Vitaly Davidovich wrote:
> I'd try the two different impls approach though.  It does introduce more
> types to load but if that's not an issue, I think perf should be good.  At
> least worth trying for curiosity's sake. :)

I wonder if this intersects with the dynamic tracing JFR is about to
introduce in HotSpot. Would Staffan's work duplicate that?

-Aleksey.