From:	"Salvador Eduardo Tropea (SET)" <salvador AT inti DOT edu DOT ar>
To:	moskewicz AT mem DOT po DOT com, Sengan DOT Short AT durham DOT ac DOT uk
Subject:	Re: Are near pointers worth it?
Cc:	djgpp AT delorie DOT com
Date:	Tue, 18 Jun 1996 15:14:17 +0300 (GMT)
Message-ID:	<9606181514.aa09746@ailin.inti.edu.ar>

Hi, here SET from Argentina:

About the following mail:
[snip]
>Profiling results for mode 4101h, 640x480 256 color.
>Running in 32 bit protected mode with linear framebuffer

> 1.0428s for    30000 lines   =>   28768.23 lines/s
> 1.4810s for      300 clears  =>     202.57 clears/s,   59.35 Mb/s
> 1.0628s for      150 bitBlts =>     141.13 bitBlt/s,   41.35 Mb/s

>Baseline values:

>REP STOSD in system memory:   31.28 Mb/s
>REP MOVSD in system memory:   29.87 Mb/s
>No cache thrashing.
>Unless I am throughly confused, these numbers indicate that video
>memory access on my ATI mach64 2MB VRAM PCI card is faster than 
>system DRAM access. This profile was produced by profile, from 
>SciTech. It comes with a big list of various card/cpu profiles
>in a text file, ready to use as a reference...
>I just ignore people who say "My code draws 10^9 sprites per year,
>is that fast?" without mentioning their cpu or video card... :)
[snip]

Hey man, the SciTech test is for the acelerator?, i supose that the answer is 
YES, you can put an ISA card with a super acelerator in a 286 and get 100 (or 
more) times of video aceleration for tasks like clean the memory, etc.
  Why you don't try to  REP MOVSD in the video memory by yourself?

bye SET
********************************************************************************
Salvador Eduardo Tropea (SET) - salvador AT inti DOT edu DOT ar
Work: INTI (National Institute of Industrial Technology) Sector: ICE 
(Electronic Control & Instrumentation)
Post (Home): Curapaligue 2124 - Caseros (1678)- Buenos Aires - Argentina 

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