Re: RM4s faster than RM5s???

New Message Reply Date view Thread view Subject view Author view

Rob Jenkins (robj++at++quid)
Tue, 11 Feb 1997 17:47:04 -0800

could be you're getting deeper pixels, can you check that when you compare the
performance with say perfly that you're using the same kind of visual on each
machine ? ( perfly has an option to specify a visual by the 0x# findvis gives
you ). In your app you can tighten up the resources you ask for if they aren't
needed maybe.

Cheers
Rob

On Feb 11, 4:42pm, Daniel Stipe wrote:
> Subject: RM4s faster than RM5s???
> Greetings Performers,
>
> I have two systems with an unexpected performance difference:
>
> One system is faster than the other.
>
> Both systems are RE2s with 512 Mb of RAM.
>
> The fast system has 4 x 200MHz processors.
> The slow system has 4 x 250MHz processors.
>
> The fast system has 2 RM4s.
> The slow system has 4 RM5s.
>
> I believe both systems have comperable swap space (I'll confirm this).
>
> The difference in speed appears to happen during the draw cycle.
>
> Are there default settings for the RM5 that would impact speed?
> Texture paging perhaps? - I'm loading a 4k x 4k x 1byte image (800% of 4Mb).
> If the RM5 pages in larger chunks that might slow things down (particularly
> to 4 boards?).
>
> Any ideas would be appreciated.
>
> Dan Stipe
>
> Dan Stipe - Sr. Staff Member
> Tele: (619) 974-6300 ext. 176
>
> /\/\/\ GreyStone Technology, Inc. fax: (619) 974-6303
> / /\/\ \ 4950 Murphy Canyon Road e-mail: dstipe++at++gstone.com
> \ \/\/ / San Diego, CA 92123-4325 web: http://www.gstone.com/
> \/\/\/
>
>
> =======================================================================
> List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
>-- End of excerpt from Daniel Stipe

-- 
________________________________________________________________
Rob Jenkins mailto:robj++at++csd.sgi.com
Silicon Graphics, Mtn View, California, USA
=======================================================================
List Archives, FAQ, FTP:  http://www.sgi.com/Technology/Performer/
            Submissions:  info-performer++at++sgi.com
        Admin. requests:  info-performer-request++at++sgi.com

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:54:38 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.