Re: Multi-channel performance problem SIZE OVERRIDE

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Rob Jenkins (robj++at++sgi.com)
Wed, 21 Apr 1999 01:37:39 -0700


Gary

I didn't get any images attached, can you resend ?
What process split do you have then ? APP_CULL_DRAW with DRAW drving all
6 channels on one pipe right ? Also, what CULL trav set up do you have (
default ? )

Cheers
Rob

GW Estep II wrote:
>
> I have attached two image files with the statistics presented that show
> the problem I'm having. If you notice, the dotted lines after the draw
> processes get extremely long when in 6 channel mode. I have read the
> docs on performer and how to interpret the statistics lines but I'm
> still stuck. Let me give you some info on the situation.
>
> Onyx2 IR2 Rack, 4RM7?(16Mb texture), 8-195Mhz R10K, 512Mb RAM
> Irix 6.4
> Performer 2.2
> EasyScene 4.1
> 7.2 Compilers
> N32 executable
> DG-8 using 6-640x480 channels.
> Some very trivial symbology being drawn over several of the channels
>
> We have take out the symbology, with no improvement.
> Originally we were using the 7.1.1 compilers and upgraded for N32
> reasons minor improvement.
> Originally using 4.0.2 EasyScene and upgraded for Y2K reasons, no
> improvement.
> We have a database paging process but the images included with this
> email do not include this process running.
> We had some dynamic models (aircraft) in the application process but
> those have been removed and are net affecting the performance.
>
> Basically it looks like there is a ton of overhead related to drawing 6
> channels. Do these stat displays look normal or are we doing something
> dumb that would cause this kind of performance degradation?
>
> Please copy your replys to my email since I probably won't get the
> info-performer emails for another day or two.
>
> Thanks for the help,
> GW
>
> ------------------------------------------------------------------------
>
> Name: gw.vcf
> gw.vcf Type: VCard (text/x-vcard)
> Encoding: 7bit
> Description: Card for G.W. Estep II

-- 
________________________________________________________________
Rob Jenkins	
SGI Graphics Consulting
Tel 0118 925 7621	
mailto:robj++at++sgi.com
http://www.sgi.co.uk

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