it also depends on network speed not just latency when I'm on our core network vs. VPN the difference is considerable there's also setting up ssh tunneling with compression. that helps also this problem is inherent in any remote X work you do. so applies to zSeries as well as x86.
the biggest issue really on zSeries is since we use a virtual frame buffer (ie. CPU driven graphics) you take a hit on CPU to generate all those pretty pictures. William 'Doug' Carroll Mainframe Systems Eng Sr I Global Technology Infrastructure ECS Core Services z/Software Group / Emerging Technologies RedHat Certified Engineer: 805008304430937 Office: (614) 213.4954 Pager: (877) 328.2157 Cell: (614) 558.5250 SMS: (614) 558.5250 Fax: (614) 244.9897 Home Fax: (866) 543-9156 Inter-office mail code: OH1-1291 http://www.jpmchase.com -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Ward, Mike S Sent: Thursday, May 14, 2009 1:44 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Virtualized Desktop Are you saying that you can't use a mouse on linux under VM? Or you can but the performance is bad? -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Mark Post Sent: Thursday, May 14, 2009 12:36 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Virtualized Desktop >>> On 5/14/2009 at 9:50 AM, "Ward, Mike S" <mw...@ssfcu.org> wrote: > All, do linux users use a mouse. I would > think that mouse tracking would be a nightmare in the VM environment. Bear, woods. It's not just z/VM, it's also network latency. When I test the X apps I build as part of Slack/390, it takes a couple of minutes just to get the initial window to show up on my system at home. And that distance is only from Michigan to New York. When I do similar things for work, that traffic goes to Germany and back. Not pretty. Mark Post ========================== This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of JPMorgan Chase & Co., its subsidiaries and affiliates. This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. Please refer to http://www.jpmorgan.com/pages/disclosures for disclosures relating to European legal entities.
