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Article #132

Re: Running Voyager at maximum speed

#132
From: Glenn Richards
Date: Sun, 04 May 1997 00:00
44 lines
2475 bytes
In article <na.3c284d4781.a40040rmurray@argonet.co.uk>, Richard Murray
<rmurray@argonet.co.uk> wrote:
> :-)  Mode 0 is dithered. Takes time to do that. Try MODE 1 instead. :-)

Try mode 114... <g>

> If you are feeling particularly masochistic, kill off some system modules
> you don't need, remove Apps: and so on... Should be able to get your
> system up to about 600 polls sec -1.

600? I get around 8-900 polls per second, until I load FidoFail, when it
drops to 150-200. Something to do with the 640K wimpslot no doubt, as it's
paging that in and out all the time...

> Maximum possible (with nearly everything unplugged) is 900 polls sec -1.
> Dead-boot gives you about 550 polls sec -1 which quickly drops to around
> 120 polls sec -1 (as soon as it needs to keep paging stuff in and out).

Haven't tried unplugging modules here, but I'm sure *Unplug ColourCard would
slow things down considerably... :-)
  
> Benchmark machine: 4Mb 25MHz A5000.

Same here...with ColourCard Gold and FPA10... <vbg>
                     
> To be honest, I don't think you'll notice much more in the way of data
> transfer. :-)

The sp_dual has more effect, downloading from Arcade with the sp_dual I get
around 3-4000cps on archived data, 7-8000 on uncompressed text, and ~9000cps
on uncompressed sprite files, all with no retries.

Compare that to the internal port, which averaged about 2-3000cps if I was
lucky. That's not allowing for a 15% data loss, and retries etc.

Glenn
 

-- 
Glenn Richards                    | squirrel@2squirrels.argonet.co.uk       
Squirrel Solutions                | richards@2squirrels.arcticbb.demon.co.uk
Acorn comms/networking specialists| Fidonet#2:253/401.0                     
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From: Glenn Richards <squirrel@argonet.co.uk>
Subject: Re: Running Voyager at maximum speed
Date: 1997/05/04
Message-ID: <na.caefe24784.a40040squirrel@argonet.co.uk>
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References: <na.a277ef4780.a40040Lyndale@argonet.co.uk> <na.3c284d4781.a40040rmurray@argonet.co.uk>
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Reply-To: Glenn Richards <squirrel@argonet.co.uk>
Newsgroups: comp.sys.acorn.apps,argonet.acorn.voyager