Half is pretty bad... XenApp runs pretty good on XenServer platform. And if you believe Citrix's engineer it is a 20% performance cost with 32 bit and 8% with 64 bit... Those are 1 to 1 (1 VM per Host) numbers, you should be able to reduce the 20% performance cost by running multiple instances. Joe -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of msemon@xxxxxxx Sent: Friday, October 17, 2008 12:08 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Citrix on VMWare Presentation server works fine on ESX. The only problem is the virtualization hit. You are only going to get about half as many users on the Citrix vm as compared to physical. -Mike Original Message: ----------------- From: GTaylor@xxxxxxxx Date: Fri, 17 Oct 2008 12:42:20 -0600 To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Citrix on VMWare Actually I have 6 or 7 PS 4.5 servers running as VMs, but they are low usage, more utility type servers. The main section of my farm is 34 IBM HS21 blades and I'll be adding at least 20 more in the near future. They run a couple intensive apps, that with dual quad cores and 4gig I can get about 20 users per server with good performance. I'm wondering if I could expect the same performance out of a beefy VM. George Taylor Systems Programmer Regional Health Inc. From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Harry Singh Sent: Friday, October 17, 2008 12:08 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Citrix on VMWare I actually was just about to write this list with the same qeustion. Thanks George. I'm looking at migrating an old EOL dell 2650 to Xenapp 4.0 as a VM. On Fri, Oct 17, 2008 at 11:11 AM, <GTaylor@xxxxxxxx<mailto:GTaylor@xxxxxxxx>> wrote: I'm curious how many folks are Xenapp servers as VMs with VMWare ESX? What is the performance and stability like? Thanks, George Taylor Systems Programmer Regional Health Inc. ________________________________ Regional Health's mission is to provide and support health care excellence in partnership with the communities we serve. Note: The information contained in this message, including any attachments, may be privileged, confidential, or protected from disclosure under state or federal laws . If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the Sender immediately by a "reply to sender only" message and destroy all electronic or paper copies of the communication, including any attachments. ________________________________ Regional Health's mission is to provide and support health care excellence in partnership with the communities we serve. Note: The information contained in this message, including any attachments, may be privileged, confidential, or protected from disclosure under state or federal laws . If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the Sender immediately by a "reply to sender only" message and destroy all electronic or paper copies of the communication, including any attachments. -------------------------------------------------------------------- mail2web LIVE - Free email based on MicrosoftR Exchange technology - http://link.mail2web.com/LIVE ************************************************ For Archives, RSS, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: //www.freelists.org/list/thin NEW! Follow Thin List on Twitter! http://twitter.com/thinlist Thin List discussion is now available in blog format at: http://thinmaillist.blogspot.com HOT! Thinlist MOBILE Feed! http://thinlist.net/mobile Thinlist quick pick http://thinlist.net ************************************************ ************************************************ For Archives, RSS, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: //www.freelists.org/list/thin NEW! Follow Thin List on Twitter! http://twitter.com/thinlist Thin List discussion is now available in blog format at: http://thinmaillist.blogspot.com HOT! Thinlist MOBILE Feed! http://thinlist.net/mobile Thinlist quick pick http://thinlist.net ************************************************