On 03 February 2005 00:41, Duncan Coutts wrote:

On Wed, 2005-02-02 at 13:30 -0700, Seth Kurtzberg wrote:

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Duncan Coutts wrote:

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In these cases we cannot turn on traditional profiling since that would interfere with the optimisations we are relying on to eliminate most of the other memory allocations.

I don't understand why you can't use profiling as a debugging tool. How would profileing, ifor test purposes, cause other things to break?

The problem is that profiling add in extra parameters and extra code to each function (each SCC). This can interfere with optimisations like inlining and unboxing I believe. Simon could explain it better.

Yes. Those pesky SCC annotations get in the way of optimisations. It's possible (likely even) that we could do a better job here, profiling is long overdue for an overhaul. Cheers, Simon