From owner-freebsd-questions Tue Mar 12 14:37:57 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id OAA25448 for questions-outgoing; Tue, 12 Mar 1996 14:37:57 -0800 (PST) Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id OAA25419 for ; Tue, 12 Mar 1996 14:37:34 -0800 (PST) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id XAA21363; Tue, 12 Mar 1996 23:27:39 +0100 From: Luigi Rizzo Message-Id: <199603122227.XAA21363@labinfo.iet.unipi.it> Subject: Re: non-blocking read ? To: msmith@atrad.adelaide.edu.au (Michael Smith) Date: Tue, 12 Mar 1996 23:27:39 +0100 (MET) Cc: leisner@sdsp.mc.xerox.com, msmith@atrad.adelaide.edu.au, questions@freebsd.org In-Reply-To: <199603122202.IAA29184@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Mar 13, 96 08:32:29 am X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > Luigi Rizzo stands accused of saying: ... > > > > That's my problem... some programs (noticeably the "harvest" cache) > > work as a single-threaded process which serves concurrent > > requests by trying to avoid blocking calls. It appears to do a nice > > job, but for some things (say reads/seeks etc. from disk) it appears > > that there is no way to avoid delays -- at least to my knowledge. > > Grr, read my original response. I wasn't being stupid. It's just that I received your email _after_ writing this reply, I believe! And yes, I am guilty, I didn't look too carefully at how harvest implement this before posting :) Cheers Luigi ==================================================================== Luigi Rizzo Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it Universita' di Pisa tel: +39-50-568533 via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 http://www.iet.unipi.it/~luigi/ ====================================================================