Jonathan Ryshpan wrote:
Configuring the kernel I came across a choice between generic-x86_64
processors, and the Opteron/Athlon/Hammer/K8 processors. My system has
a 4-core Phenom processor. Questions:
1. Is the Phenom compatible with the Opteron/etc? I.e. if I
configure for the Opteron, will my kernel be reliable? (This is
not as easy to find out as I thought.)
To my knowledge, yes. It's certainly compatible with the Athlon. I run
a Phenom quad-core as well, but I just use the off-the-shelf x86_64
kernel. Works fine.
2. How much of a performance advantage is there to configuring for
the Opteron as against the generic?
I don't know that you'd notice any significant difference with a normal
work load. If you were doing heavy I/O or number crunching, then you
might see some difference, but not enough to really bother making a
custom kernel.
That's just my opinion, of course.
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