Re: AlphaCore 0.9 slow on a xp1000
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Jay Estabrook wrote:
I just did a quick and durty test - compressing 14Mb file with "gzip -9" built by GCC and Compaq C compilers:On Thu, Mar 10, 2005 at 12:04:19AM +0000, Carlos Rodrigues wrote:I've finished installing AlphaCore 0.9 on a AlphaStation XP1000 to make some tests and everything is slow. Very slow indeed. This machine used to have a SuSE 8.1 install and it was as snappy as one can expect from this hardware, but AlphaCore just drags its feet everywhere. Ok, I haven't upgraded to 1.0a yet (still downloading), but I wanted to know if other people with this same hardware experienced the same thing. This box, together with an ES40 are used to crunch numbers, so every bit of performance is needed. If this is expected behaviour, I'll just revert back to the old install.Yes, I, too, experienced the "sluggishness" of AC-0.9. And, to this point, AC-1.0a has been much better, feeling a good bit more responsive in interactive use. But it still feels a bit "pokey" compared to the old RH 7.2. I don't know if this is a compiler/library issue; if it IS, you might be happier sticking with those you know for performance critical reasons, at least until it shakes out a bit more...
gcc 3.4.3 - 11.924 sec
ccc 6.5.6.002-1 - 11.019 sec
No special optimizations for ev56 processor were used. So, pure crunching might stay on the same level.
My wild guess is - it is a combination of kernel and glibc and latest hardware. :)
Like I said before - my AS200 flies comparing to RH 7.2.
--- Sergey Tikhonov Solvo Ltd. tsv@xxxxxxxx
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