Re: Performer performance problem w IRIX 6.5.2 at O2 R5k

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Max Waterman (maxw++at++sgi.com)
Thu, 21 Jan 1999 14:15:16 -0800

leif.stubbfalt++at++enator.se wrote:
>
> Hi,
> We are experiencing performance problems with Performer at platform
> O2 R5k / IRIX 6.5.2. Our application is now running super slowly !
>
> It seems to be a lot of kernel mode execution going on.
>
> If any of You pfPeople have access to a similar platform, please try to
> run perfly. If You run the program without any model loaded, then the
> frequency is only 24 Hz !

> The "draw" time is 10 ms with GUI panel and
> 17 ms without a panel !!

I see similar numbers on O2 with 6.3 or 6.5XX. I'm not sure why the draw time
goes up when the gui is turned off. On IR2 the draw time goes down when you
turn the gui off, which makes some sort of sense.

I thought it might be because the area of the screen that needs to be cleared
is increased when you take the gui off (assuming the gui isn't being redrawn
every frame), but disabling the gui and reducing the size of the window
doesn't get the draw time down to the same sort of number - you need to enable
the gui to do that.

Anyone?

Max.

> The CPU is consuming 45 % in user mode and
> also 40 % in kernel mode !!!
>
> If someone has a comment | solution | workaround to this, please mail
> it.
>
> Thank You !
> Leif
> =======================================================================
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-- 
Max Waterman. mailto:maxw++at++sgi.com
PSE-GPS
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