Date: Thu, 17 Jul 1997 22:27:40 +0200 From: Poul-Henning Kamp <phk@dk.tfs.com> To: Steve Passe <smp@csn.net> Cc: smp@freebsd.org, Peter Wemm <peter@spinner.dialix.com.au>, dyson@freebsd.org Subject: Re: pushdown of "giant lock" Message-ID: <18580.869171260@critter.dk.tfs.com> In-Reply-To: Your message of "Wed, 16 Jul 1997 14:25:34 MDT." <199707162025.OAA09649@Ilsa.StevesCafe.com>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <199707162025.OAA09649@Ilsa.StevesCafe.com>, Steve Passe writes:
>Hi,
>
>DESIGN PROPOSAL:
>
>The following documents a 1st draft proposal for achieving finer-grained
>locking. Please comment, paying particular attention to the pseudo-code
>I propose for doing it.
As the guy who's done it before and in this case did it last time, let
me add some other input to this topic:
1. Add a optional (possibly compile-option) circular buffer which will
record the lock actions.
2. Add a permanent version of the ugly serial-port stuff, under a compile-
time option of course, to record the lock actions.
3. Consider redesigning the lock implementation for the purpose, rather
that try to modify the rather special lock we have now...
Just my .25 DKR.
--
Poul-Henning Kamp | phk@FreeBSD.ORG FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk Private mailbox.
whois: [PHK] | phk@tfs.com TRW Financial Systems, Inc.
Power and ignorance is a disgusting cocktail.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?18580.869171260>