Ya sure but the fact is that ESX does not use the Linux kernel as it's
virtualization engine. ESX != Linux. It uses a modified Linux VM for the
management interface. Simple as that.
If it wasn't for the Apple II or TRS 80 or Commodore 64 or whatever then
none of this would be possible :)
Jeff Pitsch wrote:
If it wasn't for the linux kernel then none of it would be possible.
On 10/28/05, *Chris Fraser* <chrisfraser@xxxxxxxxxx <mailto:chrisfraser@xxxxxxxxxx>> wrote:
ESX will always have better performance because the VMkernel (not linux kernel) has full control to manage all hardware resources and doesn't have to pass request through an OS layer (like GSX).
Single proc is definitely the way to go on almost all VMs. I'm still puzzled at the reasoning behind announcing 4-way SMP, esp since it will benefit maybe %1 of VMs.
Best Practices Using VMware Virtual SMP http://www.vmware.com/pdf/vsmp_best_practices.pdf
ESX Server Architecture and Performance Implications http://www.vmware.com/pdf/esx2_performance_implications.pdf
ESX Performance Tips and Tricks http://www.vmware.com/pdf/esx_performance_tips_tricks.pdf
Reference & Planning for Virtualizing Citrix http://www.vmware.com/pdf/esx_citrix.pdf
Reference and Capacity Planning with Citrix Presentation Server (for ESX Server 2) http://www.vmware.com/pdf/esx2_citrix_planning.pdf
Jeff Pitsch wrote: > ESX will always have better performance than GSX because ESX is tied > more closesly to the linux kernel. GSX is strictly a service and > doesn't tie deeply into the OS at all. > > Jeff > > > On 10/28/05, *Jon D* <rekcahpmip@xxxxxxxxx <mailto:rekcahpmip@xxxxxxxxx> > <mailto:rekcahpmip@xxxxxxxxx <mailto:rekcahpmip@xxxxxxxxx>>> wrote: > > I run citrix in VMware GSX, and I have an identical physical citrix > box. Both production. > > I wish I would have put it in ESX with SMP because the citrix box > can only use 1 processor which isnt good(even with GSX dual > processor license). > > I would say VMWare burns 20-30% of the resources(the physical can > probably handle 20-30% more connections). > > The performance problems I see is the physical disk, and mainly the > processor. 1 3Ghz processor is only good for maybe 23-25 processes. > > Overall I do like it though. If my manager messes up the virtual > citrix server I just revert it to the last snapshot and its fixed. > If he messes up the physical one, I've got a a solid week of redoing > it ahead of me. > > > > -Jon- > > > > > . > >
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