On Friday 12 August 2005 17:57, [EMAIL PROTECTED] wrote: > Hi there, > thanks a lot to Jeff and Nix for the answers. That helped a lot. > Nonetheless, I do not understand fully two things:
> Is the Opteron in 32 bit Mode as stable as say a Pentium or a Xeon? I mean, > is there a no-go on the Opterons? Two situations: *)host in 64-bit mode: then you'll not be able to use the SKAS3 patch, and your UML's will be substantially slower. However, you could run them in SKAS0 mode, which is almost as fast as SKAS3 mode and require no host patch. In general, 64-bit distributions happen to run into a bit more problem, especially on obscure or low-quality programs. And 64-bit guests are a bit more unstable, too. *) host in 32-bit mode. Then your Opteron is just a faster Xeon. > Ist the memory limit for the guests or for the hosts? I mean, is the host > limited to 4 GB? Or just the guests? When you run a kernel in 32-bit mode (host / guest kernel) that kernel is limited to 4 GB (except if you run it with PAE enabled, which would work; but still binaries will be limited to 4GB). And every 32-bit binary (including UML) won't see more than 4GB of memory (actually, a bit less - on a normal system UML won't go farther than about 2,75G or something like that, on certain configuration, i.e. with TT mode disabled and static linking enabled IIRC). However, if you don't have a single "memory hog" process, you can split the various processes across multiple 32-bit UMLs. > Thanks a lot! > Eric > Mit der Gruppen-SMS von WEB.DE FreeMail können Sie eine SMS an alle > Freunde gleichzeitig schicken: http://freemail.web.de/features/?mc=021179 -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
