From owner-freebsd-hackers Wed Jan 21 19:46:10 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA05145 for hackers-outgoing; Wed, 21 Jan 1998 19:46:10 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from ns1.yes.no (ns1.yes.no [195.119.24.10]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA05124; Wed, 21 Jan 1998 19:45:57 -0800 (PST) (envelope-from eivind@bitbox.follo.net) Received: from bitbox.follo.net (bitbox.follo.net [194.198.43.36]) by ns1.yes.no (8.8.7/8.8.7) with ESMTP id DAA03030; Thu, 22 Jan 1998 03:22:44 GMT Received: (from eivind@localhost) by bitbox.follo.net (8.8.6/8.8.6) id EAA04855; Thu, 22 Jan 1998 04:22:39 +0100 (MET) Message-ID: <19980122042239.37036@follo.net> Date: Thu, 22 Jan 1998 04:22:39 +0100 From: Eivind Eklund To: dyson@FreeBSD.ORG Cc: hackers@FreeBSD.ORG Subject: Re: Locking on disk slice I/O--yes, no or how? References: <199801220119.UAA12943@dyson.iquest.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88e In-Reply-To: <199801220119.UAA12943@dyson.iquest.net>; from John S. Dyson on Wed, Jan 21, 1998 at 08:19:07PM -0500 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk On Wed, Jan 21, 1998 at 08:19:07PM -0500, John S. Dyson wrote: > I am also looking at pushing certain kernel services into kernel > threads (AIO is already there), but those things are off into the > future (probably 3.1+ timeframe.) I've tried the archives and my memory and not found any answer: Does this mean we have a usable API for internal kernel threads? Does this involve full use of nice-levels, so I can create a thread that does data-structure optimization and not having it block more critical operations? (Context: I'm looking at some advanced firewall optimizations that will take a lot of CPU to compute, and that it would be nice to use otherwise idle time for.) Eivind.