Comments on: A Performance Tip for ESX 3.0 and ESX 3.5 http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/ Scott Drummonds on Virtualization Wed, 08 Feb 2012 14:30:44 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Resa http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-5053 Resa Sat, 09 Apr 2011 16:28:18 +0000 http://vpivot.com/?p=415#comment-5053 Good day! i am at work currently so i didn't have the time to check out all of the article, but i do like the stuff i read and i'll read a little more on the site when i get home.. Got a lot of things to finish at the job :) do you have a profile on facebook? ;) Regards, Resa Good day! i am at work currently so i didn’t have the time to check out all of the article, but i do like the stuff i read and i’ll read a little more on the site when i get home.. Got a lot of things to finish at the job :) do you have a profile on facebook? ;) Regards, Resa

]]> By: Top 5 Planet V12n blog posts week 16 | Download VDI Solutions http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-2737 Top 5 Planet V12n blog posts week 16 | Download VDI Solutions Mon, 25 Oct 2010 18:41:31 +0000 http://vpivot.com/?p=415#comment-2737 [...] Drummonds – A Performance Tip for ESX 3.0 and ESX 3.5Because hardware assist was once so slow, older versions of ESX would utilize our faster-performing [...] [...] Drummonds – A Performance Tip for ESX 3.0 and ESX 3.5Because hardware assist was once so slow, older versions of ESX would utilize our faster-performing [...]

]]> By: drummonds http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-752 drummonds Thu, 29 Apr 2010 16:29:42 +0000 http://vpivot.com/?p=415#comment-752 For ESX 3.5 there is no way to check the monitor mode. For ESX 4.0 you can grep the log file for MONITOR and you will see statements at VM boot time showing monitor information. For ESX 3.5 there is no way to check the monitor mode. For ESX 4.0 you can grep the log file for MONITOR and you will see statements at VM boot time showing monitor information.

]]> By: alak http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-748 alak Thu, 29 Apr 2010 07:48:45 +0000 http://vpivot.com/?p=415#comment-748 scott -- how do we determine if the guest is utilizing hardware assist or not ? scott — how do we determine if the guest is utilizing hardware assist or not ?

]]> By: Top 5 Planet V12n blog posts week 16 | VMvisor http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-718 Top 5 Planet V12n blog posts week 16 | VMvisor Sun, 25 Apr 2010 21:07:05 +0000 http://vpivot.com/?p=415#comment-718 [...] Drummonds – A Performance Tip for ESX 3.0 and ESX 3.5Because hardware assist was once so slow, older versions of ESX would utilize our faster-performing [...] [...] Drummonds – A Performance Tip for ESX 3.0 and ESX 3.5Because hardware assist was once so slow, older versions of ESX would utilize our faster-performing [...]

]]> By: Sim Alam http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-692 Sim Alam Wed, 21 Apr 2010 06:11:22 +0000 http://vpivot.com/?p=415#comment-692 No worries. That sort of catch wasn't the result I had hoped for though. :) That will teach me to go looking for silver performance bullets. No worries. That sort of catch wasn’t the result I had hoped for though. :)

That will teach me to go looking for silver performance bullets.

]]> By: Scott http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-691 Scott Wed, 21 Apr 2010 06:02:08 +0000 http://vpivot.com/?p=415#comment-691 Wow....outstanding catch. That clearly contradicts the best practice I gave above. I need to go huddle with the guys I shared a coffee with earlier today. Will update the blog ASAP. Scott Wow….outstanding catch. That clearly contradicts the best practice I gave above. I need to go huddle with the guys I shared a coffee with earlier today. Will update the blog ASAP.

Scott

]]> By: Sim Alam http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-689 Sim Alam Wed, 21 Apr 2010 05:20:06 +0000 http://vpivot.com/?p=415#comment-689 Thanks for the additional link Scott. According to that: "Both ESX 3.5 and ESX 4.0 recognize the monitor.virtual_mmu setting. Only ESX 4.0 recognizes monitor.virtual_exec. You can express all possible ESX 3.5 mode choices with the monitor.virtual_mmu option alone." Does that mean that the monitor.virtual_exec setting isn't valid for ESX 3.5 and that ALL the monitor mode settings are controlled via monitor.virtual_mmu setting for 3.5? Cheers, Sim Thanks for the additional link Scott.

According to that:
“Both ESX 3.5 and ESX 4.0 recognize the monitor.virtual_mmu setting. Only ESX 4.0 recognizes monitor.virtual_exec. You can express all possible ESX 3.5 mode choices with the monitor.virtual_mmu option alone.”

Does that mean that the monitor.virtual_exec setting isn’t valid for ESX 3.5 and that ALL the monitor mode settings are controlled via monitor.virtual_mmu setting for 3.5?

Cheers,
Sim

]]> By: Scott http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-688 Scott Wed, 21 Apr 2010 05:04:13 +0000 http://vpivot.com/?p=415#comment-688 Sim, The attempt to set an Intel processor to use the hardware MMU will be ignored on ESX 3.5. Unfortunately, ESX 3.5 provides no way to confirm the running monitor mode. The .vmx setting is correct, unless an illegal configuration has been specified. We improved this in ESX 4.0, where you can identify the monitor mode in the vmware.log file. For more info on that see this document: http://www.vmware.com/resources/techresources/10036 Scott Sim,

The attempt to set an Intel processor to use the hardware MMU will be ignored on ESX 3.5. Unfortunately, ESX 3.5 provides no way to confirm the running monitor mode. The .vmx setting is correct, unless an illegal configuration has been specified.

We improved this in ESX 4.0, where you can identify the monitor mode in the vmware.log file. For more info on that see this document:
http://www.vmware.com/resources/techresources/10036

Scott

]]> By: Sim Alam http://vpivot.com/2010/04/20/a-performance-tip-for-esx-3-0-and-esx-3-5/comment-page-1/#comment-686 Sim Alam Wed, 21 Apr 2010 01:21:16 +0000 http://vpivot.com/?p=415#comment-686 Hi Scott, Thanks for the info. If you are running on pre-Nehalem based hardware what happens if you set monitor.virtual_mmu = hardware when they don't have EPT? How do we tell on ESX 3.5 which mode ESX is using for a given VM? Cheers, Sim Hi Scott,

Thanks for the info.

If you are running on pre-Nehalem based hardware what happens if you set monitor.virtual_mmu = hardware when they don’t have EPT?

How do we tell on ESX 3.5 which mode ESX is using for a given VM?

Cheers,
Sim

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