Mark M wrote:
On 11/16/06, *Alan McKinnon* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
On Thursday 16 November 2006 01:00, Mark M wrote:
> Hi all,
> Pentium D is actually an emt64 dual core cpu,
> so while CFLAGS -march=pentium4 will work, it will be x86-32 instead
> of x86-64 and of course the compiled apps won't know nothing about
> the dual core (read almost dual CPU),
> still it will run, and it will run fast, you may want to recompile
> the kernel on the data center with vSMP option set, so at least the
> kernel will know how to manage multithreads between two cores.
In that case he should be cross-compiling with a CHOST set for the
PentiumD, not so?
alan
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Yes, he can do so, but he won't be able to test run his apps.
And judging from my experience there isn't much difference between apps
compiled for x86-32 or x86-64, however compiling the kernel for right
cpu speed up things, especially multithreaded.
Hi Mark,
I actually wasn't planning on using 64bit anyway
I'm wondering if I should set my CFLAGS to -march=x86-32 or leave it as
-march=pentium4? Are they essentially the same? I already took your
previous suggestion and enabled vSMP support, though I haven't moved the
drive to it's new home as of yet.
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