| From: | Allan Odgaard |
| Date: | 01 Dec 99 at 05:41:25 |
| Subject: | Re: Optimizing (Was: Re: Getting desperate!) |
From: Allan Odgaard <Duff@DIKU.DK>
On 01-Dec-99, Nuno Trancoso wrote:
> This doesn't mean that VBCC is in the midlle. If, as you say, you waste time
> flushing buffers on every printf() call, i would like to know the results for
> the modification you suggest. Anyone willing to do them, since i do not know
> how to?
Changing printf(...) to fprintf(stdout, ...) and running 999 cycles took:
VBCC: 5.96 seconds
StormC: 8.66 seconds
Redirecting output to 'NIL:' gave this:
VBCC: 0.38 seconds
StormC: 1.52 seconds
I feel tempted to rewrite HTMLview and the image decoder modules to plain C ;-)
> p.s. If i compile with +ppc, it get even slower. Is that because of context
> switches [...]
I'd think so...
Regards Allan