Re: hyperthread advice needed

From: Billy <vslabs_at_onwe.co.za>
Date: 20 May 2005 03:09:29 -0700
Message-ID: <1116583769.766344.275780@g43g2000cwa.googlegroups.com>

astalavista wrote:

> I use 10.1.0.3 on Proliant DL380 on Redhat AS 4
> what is the best configuration,
> hyperthread enabled or disabled ?

Use it. It would be a waste not too use it (it does provide additional CPU capacity), unless the RHAS kernel is unhappy with it for some reason (I've seen some instability issues with HT on WinXP platforms).

Just be aware though that HT has a bug of sorts, as per latest Secunia advisory. This can be used by a local process to compromise the security of your system (hacking into the shared CPU memory cache and obtaining data like private keys from the sshd process).

--
Billy

Received on Fri May 20 2005 - 05:09:29 CDT