Low-level array performance

Daniel Fischer daniel.is.fischer at web.de
Wed Jun 18 04:10:57 EDT 2008

Am Dienstag, 17. Juni 2008 22:37 schrieb Dan Doel:
> I'll attach new, hopefully bug-free versions of the benchmark to this
> message.

With -O2 -fvia-C -optc-O3, the difference is small (less than 1%), but today, 
ByteArr is faster more often.

> Of course, without the list overhead, the ByteArr appears to allocate much
> more than Ptr for large arrays, because the n*w byte array shows up in the
> heap allocation, whereas the malloced memory does not. None of this should
> be a factor in the actual fannkuch benchmark, of course, which only
> allocates 3 arrays of size 11.
> Cheers,
> -- Dan


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