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Re: Performance on an alpha 21164 using egcs 1.0.3 ???
- To: egcs at egcs dot cygnus dot com
- Subject: Re: Performance on an alpha 21164 using egcs 1.0.3 ???
- From: Iztok Saje <Iztok dot Saje at mobitel dot si>
- Date: Wed, 03 Feb 1999 08:32:28 +0100
- Organization: Mobitel d.d. , Ljubljana
Hello !
I moved my program to 533 MHz Alpha EV56 running red-hat Linux. (egcs)
On my 400 MHz pentiumpro with same 1.0.3 egcs program runs 30% faster.
There is no floating point, only a lot of integers. (some of them long, mostly
just int).
First I tried all optimization options. There were huge differencies on
execution time for
different options on Intel, while (beside O0/1/2) almoust none on Alpha.
DEC compiler was tried, and code runs 30% faster.
Is there anything I am supose to do/check/read/click ?
It is Beowulf of 21 Alphas and my program runs few hours, so it is worth trying.
Nothing usefull in sqrt discussion on this list a while ago:
Performance on an alpha 21164 using egcs 1.0.3 ??? by Peter Biechele
Best regards,
Iztok