Comments on: What’s This Whole PCIe Thing About, Anyway?

By: Eric Liskay

Eric Liskay — Tue, 11 Oct 2011 16:42:34 +0000

In reply to chris. I have Mac OS on one drive and Windows on another. Windows has the advantage of SLI support, but that doesn't help X-Plane.

By: chris

chris — Tue, 11 Oct 2011 13:05:43 +0000

In reply to Chris Serio.

December it is, counting down. banking on the” you may be pleasantly surprised”

I’m sure in the end, it will be fine, due to all of your guys’s hard work on this.

By: Ben Supnik

Ben Supnik — Tue, 11 Oct 2011 12:50:12 +0000

In reply to Dark Photon. This is exactly what X-Plane already does. The reused but not repeated data are stream-draw VBOs allocated once. The result is a pile of bus bandwidth usage!

By: Dark Photon

Dark Photon — Tue, 11 Oct 2011 12:29:45 +0000

For the non-repeating vertex data, consider using Streaming VBOs with re-use. Just ensure you allocate a streaming VBO plenty large enough to cache a frame of data. Then, most of the time, you don’t have to reupload, you just reuse.

* http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=282868#Post282868
* http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=282902
* http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=273141#Post273141
* http://www.opengl.org/wiki/Buffer_Object_Streaming

By: chris

chris — Tue, 11 Oct 2011 02:19:58 +0000

In reply to chris. Nice James, I may add on windows for gaming

By: James

James — Tue, 11 Oct 2011 01:06:47 +0000

In reply to chris. I have both. Best of both worlds ;)

By: chris

chris — Tue, 11 Oct 2011 00:19:10 +0000

In reply to Eric Liskay. Mac OS better working, safer, cleaner looking system. Use it.

By: Eric Liskay

Eric Liskay — Mon, 10 Oct 2011 22:36:18 +0000

In reply to Eric Liskay. And yes... I have seen someone with 7 GPUs using this motherboard

By: Eric Liskay

Eric Liskay — Mon, 10 Oct 2011 22:31:36 +0000

In reply to James. It's an EVGA SR-2 motherboard with the Intel 5520 chipset and two Nvidia NF200 chips to allow for 4 x16 PCIe slots. I don't plan to do 4-way SLI mind you. I am quite happy with two-way SLI currently. It supports 16/16/16/16 or 16/8/8/8/8/8/8. It will be interesting comparing the performance of X-Plane 10 in Mac OS versus Windows.

By: Chris Serio

Chris Serio — Mon, 10 Oct 2011 21:31:53 +0000

In reply to chris. Have you actually understood Ben's post? Ben said...

First: don’t panic. Wait for version 10 to come out, then try it. You might be pleasantly surprised

Then referring to computers that are just barely running XP 9 currently he said...

if you can run 9, you may be able to run 10 acceptably

If you have an i7, you're certainly not in the category of computers that are just BARELY running XP9 (unless you have an onboard GPU) so what do you have to be so nervous about? You're panicking like the sky is falling and you're misconstruing the entire point of Ben's post which is merely trying to inform the community what pieces of hardware are going to be important in the context of "I have money...what should I spend it on if i want to upgrade for v10?". He didn't say nor imply in any way that "5% of the population" are going to be fine while the "rest...are screwed". I _just_ upgraded my developer computer to an i7 a few months ago. I was running a Core 2 Duo with 2GB of RAM before that and the primary reason for the upgrade was so my compile times would be shorter! Take a deep breath, wait for December and try it for yourself...and please in the meantime, if you don't have something positive and on-topic to say, please kindly find another forum in which to share your opinions. This is not the right forum for gripes.