Comments on: PCoIP painting issues http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/ Virtualization is a layer in software. What are you abstracting away from? Wed, 04 Jan 2012 10:55:59 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Forbes Guthrie http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/comment-page-1/#comment-1534 Forbes Guthrie Mon, 05 Apr 2010 14:28:51 +0000 http://itsjustanotherlayer.com/?p=378#comment-1534 Ahhhh, penny drops :) Okay, sorry for the confusion. Thanks for taking the time to explain what this was for. Ahhhh, penny drops :)
Okay, sorry for the confusion. Thanks for taking the time to explain what this was for.

]]> By: iguy http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/comment-page-1/#comment-1529 iguy Thu, 01 Apr 2010 04:20:27 +0000 http://itsjustanotherlayer.com/?p=378#comment-1529 The sizing formula in this post is not how much additional RAM you need to allocate for it to work. This formula is a way around a bug in how the Video HW works in Hardware Version 4. So in this case if you are triggering this bug and having issues with PCoIP after uninstalling and clean installing the View Agent, you need to find a display setting that fits into the formula in question. 2 Monitors at 1920x1080 max resolution ie. ((2 x 1920) x (2 x 1080) x 4)/1024 = 32400 Then 32400/64 = 506.25. Which is not a divisor of 64. You would still be in a situation where this bug could be happening. Instead if you go and set the pool's maximum desktop setting of 4 monitors at 1920x1080 max resolution you would end up with ((4 x 1920) x (4 x 1080) x 4)/1024 = 129,600. 129,600/64 = 2,025. This is a divisor of 64. Therefore this would prevent the VRAM bug from triggering. The sizing formula in this post is not how much additional RAM you need to allocate for it to work. This formula is a way around a bug in how the Video HW works in Hardware Version 4.

So in this case if you are triggering this bug and having issues with PCoIP after uninstalling and clean installing the View Agent, you need to find a display setting that fits into the formula in question.

2 Monitors at 1920×1080 max resolution
ie. ((2 x 1920) x (2 x 1080) x 4)/1024 = 32400 Then 32400/64 = 506.25. Which is not a divisor of 64. You would still be in a situation where this bug could be happening.

Instead if you go and set the pool’s maximum desktop setting of 4 monitors at 1920×1080 max resolution you would end up with ((4 x 1920) x (4 x 1080) x 4)/1024 = 129,600. 129,600/64 = 2,025. This is a divisor of 64. Therefore this would prevent the VRAM bug from triggering.

]]> By: Forbes Guthrie http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/comment-page-1/#comment-1528 Forbes Guthrie Tue, 30 Mar 2010 14:49:18 +0000 http://itsjustanotherlayer.com/?p=378#comment-1528 OK, here's an example. Say you have 2 monitors at 1920x1080. The formula you give above would make this: ((2 x 1920) x (2 x 1080) x 4)/1024 = 32400 The table in the VMware PDF states that 2 monitors at 1920x1080 will need another 124.92MB (which is rounded up to 128MB) of RAM. OK, here’s an example. Say you have 2 monitors at 1920×1080. The formula you give above would make this:
((2 x 1920) x (2 x 1080) x 4)/1024 = 32400
The table in the VMware PDF states that 2 monitors at 1920×1080 will need another 124.92MB (which is rounded up to 128MB) of RAM.

]]> By: iguy http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/comment-page-1/#comment-1527 iguy Tue, 30 Mar 2010 03:35:33 +0000 http://itsjustanotherlayer.com/?p=378#comment-1527 I'm confused by what you are misunderstanding here Forbes? I’m confused by what you are misunderstanding here Forbes?

]]> By: Forbes Guthrie http://itsjustanotherlayer.com/2010/03/pcoip-painting-issues/comment-page-1/#comment-1525 Forbes Guthrie Sun, 28 Mar 2010 16:29:28 +0000 http://itsjustanotherlayer.com/?p=378#comment-1525 Hi Ian, I'm not sure that magic formula is right. Look at the table on the current View Architecture Guide (http://www.vmware.com/pdf/view401_architecture_planning.pdf) at the top of page 28. I tried a couple in your formula and they didn't match. Any ideas? Or am I looking at the wrong table? Thanks, Forbes. Hi Ian,
I’m not sure that magic formula is right. Look at the table on the current View Architecture Guide (http://www.vmware.com/pdf/view401_architecture_planning.pdf) at the top of page 28. I tried a couple in your formula and they didn’t match. Any ideas? Or am I looking at the wrong table?
Thanks, Forbes.

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