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Re: -findirect-dispatch performance
Bryce McKinlay writes:
> On Tuesday, Sep 30, 2003, at 04:47 Pacific/Auckland, Andrew Haley wrote:
>
> > The difference between these figures is less than the measurement
> > noise. So, I'd have to put my machine into single user mode to
> > determine which was fastest.
>
> oprofile could be useful here. It can measure the actual cycles used by
> the app, as report by the CPU's performance counters. I'm not sure if
> its 100% accurate, but should be much more so than using timers.
I've been looking for an excuse to investigate oprofile...
> > Now, the embedded CaffeineMark is not the best Java benchmark program,
> > so if anyone can suggest anything better I'm interested. However, on
> > the basis of these timings I think we can agree that this is good
> > enough.
>
> Yes. I guess it depends how many cross-class field accesses the
> benchmark is doing, though.
>
> Are you planning to check this in soon?
Tomorrow. I have a few changes.
One issue is that inlining is more-or-less useless with the current
patch. I will fix that.
Andrew.