"/var/log/messages" logs appear in the output of "sysctl -a"

I am testing a NIC driver. I found it's logs and "/var/log/messages" logs in the output of "sysctl -a": I run "sysctl -a | less", and there I find: kern.devstat.version: 6 kern.devstat.generation: 137 kern.devstat.numdevs: 1 kern.kobj_methodcount: 143 kern.log_wakeups_per_second: 5 kern.msgbuf_cl

Problem in checking machine architecture

I have a host with FreeBSD 7.0-RELEASE (64 bit) installed. How do I check the host's architecture ? When I run: "uname -m" the output is: "amd64" When I run: "sysctl -a | less" and search for: "CPU" I see that: "hw.model: Intel(R) Xeon(R) CPU5140 @ 2.33GHz ... hw.machine_arch: amd6