Date: Mon, 19 Jan 2004 21:37:54 +0200 From: Petri Helenius <pete@he.iki.fi> To: Chris Stenton <jacs@gnome.co.uk> Cc: freebsd-smp@freebsd.org Subject: Re: newbie SMP questions Message-ID: <400C3212.5040907@he.iki.fi> In-Reply-To: <1074526360.2863.6.camel@hawk.gnome.co.uk> References: <1074526360.2863.6.camel@hawk.gnome.co.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
Chris Stenton wrote: >Hi, > >I've just built a dual XEON box running 5.2. Could someone give me some >pointers on the following. > > >1. I can't find a thread on the pro and cons of having HTT enabled. >The issue must have been flogged to death somewhere. > > > If you run things that spend considerable time behind Giant, disable HTT. There is also an issue with at least HTT where the system panics on boot asking "AP #n failed panic y/n?". For general application/server use, you probably benefit from HTT. >2. An old rule of thumb for a single processor machine was to have twice >the amount of swap space to physical RAM. Is this still the case for a 4 >logical CPU machine? I never understood where that rule of thumb came >from:-) > > Does >4G swap work alright anyway? Pete
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?400C3212.5040907>