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Date:      Wed, 22 Sep 2010 03:36:56 -0700
From:      Maxim Sobolev <sobomax@FreeBSD.org>
To:        "current@freebsd.org" <current@FreeBSD.org>, FreeBSD Hackers <freebsd-hackers@FreeBSD.org>
Cc:        Jeff Roberson <jeff@FreeBSD.org>
Subject:   Bumping MAXCPU on amd64?
Message-ID:  <4C99DC48.1020208@FreeBSD.org>

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Hi,

Is there any reason to keep MAXCPU at 16 in the default kernel config? 
There are quite few servers on the market today that have 24 or even 32 
physical cores. With hyper-threading this can even go as high as 48 or 
64 virtual cpus. People who buy such hardware might get very 
disappointed finding out that the FreeBSD is not going to use such 
hardware to its full potential.

Does anybody object if I'd bump MAXCPU to 32, which is still low but 
might me more reasonable default these days, or at least make it an 
kernel configuration option documented in the NOTES?

Thanks!

-Maxim



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