On Tue, Sep 28, 2010 at 8:49 PM, John Reiser <jrei...@bitwagon.com> wrote: > On 09/28/2010 11:37 AM, drago01 wrote: >> On Tue, Sep 28, 2010 at 8:09 PM, Mike McGrath <mmcgr...@redhat.com> wrote: > >>> We run 32 bit vms in Fedora Infrastructure a lot for purposes of memory >>> density, we do it based on what will be running on the host as it doesn't >>> always make sense to do so. It's worked out very well for us. > >> That's a valid case where it indeed makes sense, but I assume the >> *host* is running x86_64. > > A x86_64 kernel with everything else i686 [no 64-bit apps] can be good > non-virtually, too, particularly when it avoids 32-bit PAE for more than > 3.3GB of RAM.
No it is pointless in 99% of the times, you lose stuff like: SSE2 being part of the standard ABI and additional registers for no real gain. (which can result into none or huge performance differences depending on the situation). -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
