From owner-freebsd-hackers@FreeBSD.ORG  Sat Feb 28 02:58:51 2015
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Date: Fri, 27 Feb 2015 21:59:36 -0500
From: R0B_ROD <witchdoctor.mdf@gmail.com>
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Hello, 
The optimization level -O3
in "CFLAGS and COPTFLAGS -O3 -pipe -funroll-loops"
options in /etc/make.conf, have any relation to the
CPU having SSE3 and SSE4A features??

I have built over a dozen kernels for my laptop
with 10.1-STABLE. My last one was the smallest
and it was an accident, I just kept messing around.
The machine is truly responsive. Also adjusted ZFS
and other sysctl tunables. I am very happy with BSD.
I came from Linux with no real UNIX knowledge.
Hoping I can learn asm/C. Thanks for the time.

-Roberto Rodriguez Jr
Lead Analyst 
Mach1ne Defense Foundati0n