From: root@umibox.hanse.de (Bernd Meyer) Subject: Re: memtest.c (was Re: Specmarks for Linux ?) Date: Thu, 2 Sep 1993 20:20:40 GMT
matth@extro.ucc.su.OZ.AU (Matthew Hannigan) writes:
>austin@eecom.gatech.edu (Mark D. Austin) writes:
>>Greetings,
>>Of course it depends on the machine, but has anyone heard of
>>any benchmarks for Linux ? Someone was telling that with the
>>right hardware, it is almost as fast as a Sun Sparc II. Is this
>>right?
>Try much fast than a sparc2, for some things at least.
>I wrote a little program to test memory copies, which copies
>a 4Mb chunk 64 times. It takes 54s on a mildly loaded sparc2
>and about 10s on a very lightly loaded linux dx2/66.
Linux seems to be cheating somehow - this took only 14 seconds on my
machine, without accessing swap. And my machine only has 8MB of Ram, so
there is no way to have both arrays in at the same time. Maybe linux just
shares the pages with "copy on write"?
Bernie
-- We both know that the earth is round | Bernd Meyer, EE-student So we can't see the way before us to its end | "Nobody is a failure who has We walk on this way, hand in hand, | friends" (from: isn't it a And I hope you are still with me behind the horizon| wonderful life?"