On 09/28/2010 11:57 AM, drago01 wrote: > On Tue, Sep 28, 2010 at 8:49 PM, John Reiser <jreiser@xxxxxxxxxxxx> wrote: >> 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). Being able to run 3000 simultaneous processes (32-bit) instead of only 2400 processes (64-bit) can be an advantage that out-weighs the minor losses to each individual process. RAM is cheap [and a capital cost], racks are expensive [and an operating cost for power, cooling, rent.] -- -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
