Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 10 Nov 2010 12:42:25 +0200
From:      Ivan Klymenko <fidaj@ukr.net>
To:        freebsd-questions@freebsd.org
Subject:   kern.smp.topology
Message-ID:  <20101110124225.587c4b95@ukr.net>

next in thread | raw e-mail | index | archive | help
Hello! People.

Who can explain the purpose of sysctl variable kern.smp.topology?
What does it affect?

It may take such values:
1      -Dual core with no sharing.
2      -No topology, all cpus are equal.
3      -Dual core with shared L2.
4      -quad core, shared l3 among each package, private l2.
5      -quad core,  2 dualcore parts on each package share l2.
6      -Single-core 2xHTT
7      -quad core with a shared l3, 8 threads sharing L2.
default-Default, ask the system what it wants.

Does it make sense to set its value manually, if I know that my CPU Core2Duo?
How to do this, select a value?

I not found this explanation in any of the official guides ...

Thanks!



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20101110124225.587c4b95>