I guess what I'm looking for is the overhead per resource between different virtualization technologies
Overhead: RHEL-Xen ESX CPU RAM Disk IO Net IO For example, RAM IO had a lot of overhead historically, however newer VT-d chips are supposed to help with that. The problem is how "much" will it help! On Tue, Jul 29, 2008 at 12:55 PM, Zavodsky, Daniel (GE Money) < [EMAIL PROTECTED]> wrote: > I don't think the VMware architecture is better than PV Xen in terms of > performance for Linux. > In PV Xen, you get no CPU overhead and I/O amounts to exchanging memory > pages between domains. You can't really make this more effective on x86 > hardware (including x86_64) IMHO. Besides, by using RHEL virtualisation, you > save money on licenses for the operating system as well. > > Regards, > Daniel > > > ------------------------------ > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *Ahmed Kamal > *Sent:* Tuesday, July 29, 2008 10:19 AM > *To:* [email protected] > *Subject:* Re: [rhelv5-list] ESXi vs Xen > > I understand they're stripping the HA and live migration parts. But in > terms of raw CPU and IO performance, is it much better than Xen ? > > On Tue, Jul 29, 2008 at 11:16 AM, Jussi Silvennoinen < > [EMAIL PROTECTED]> wrote: > >> > Hi, >> > Since VMware just released ESXi as a free download (not open-source >> though), >> > I was wondering if any of you guys had done a study on the performance >> of >> > ESXi vs Xen ? Of course I could locate lots of marketing bable how each >> > product is claiming to have the best "architecture" and all .. but I'm >> > looking for a real opinion >> >> Do look more thoroughly what they actually are making free. Might not be >> enough for your use. >> >> -- >> >> Jussi >> >> _______________________________________________ >> rhelv5-list mailing list >> [email protected] >> https://www.redhat.com/mailman/listinfo/rhelv5-list >> > > > _______________________________________________ > rhelv5-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/rhelv5-list > >
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