From owner-freebsd-hackers Tue Nov 27 1: 8:33 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from netfinity.realnet.co.sz (swazi.realnet.co.sz [196.28.7.2]) by hub.freebsd.org (Postfix) with ESMTP id 28A8137B758 for ; Tue, 27 Nov 2001 01:08:17 -0800 (PST) Received: by netfinity.realnet.co.sz (Postfix, from userid 502) id 4256BFA41; Tue, 27 Nov 2001 08:38:51 +0200 (SAST) Received: from localhost (localhost [127.0.0.1]) by netfinity.realnet.co.sz (Postfix) with ESMTP id 3E470652E2; Tue, 27 Nov 2001 08:38:51 +0200 (SAST) Date: Tue, 27 Nov 2001 08:38:51 +0200 (SAST) From: Zwane Mwaikambo X-X-Sender: To: Warner Losh Cc: Subject: Re: [PATCH] Relevance of 8254 calibration. In-Reply-To: <200111270134.fAR1YIM08540@harmony.village.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 26 Nov 2001, Warner Losh wrote: > Yes. Almost *ALL* PCs in the field aren't exactly 11931282Hz. > There's a lot of variance in this. PC have such crappy oscillators > that calibration is required. The "slight" variation can be as large > as +-300Hz, which is huge. :-(. > > But I'm a little biased here... > > Warner > hmm cross referencing here (forgive me ;) NetBSD nor Linux do this calibration and NetBSD runs on just about anything ;) Cheers, Zwane To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message