X-Original-To: pgsql-hackers-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id F0CC59DCAA9 for ; Tue, 29 Nov 2005 00:38:45 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 05662-10 for ; Tue, 29 Nov 2005 00:38:44 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from linuxworld.com.au (unknown [203.34.46.50]) by postgresql.org (Postfix) with ESMTP id E70C69DCAB2 for ; Tue, 29 Nov 2005 00:38:42 -0400 (AST) Received: from linuxworld.com.au (IDENT:swm@localhost.localdomain [127.0.0.1]) by linuxworld.com.au (8.13.2/8.13.2) with ESMTP id jAT4cdlm018452; Tue, 29 Nov 2005 15:38:39 +1100 Received: from localhost (swm@localhost) by linuxworld.com.au (8.13.2/8.13.2/Submit) with ESMTP id jAT4cd2G018449; Tue, 29 Nov 2005 15:38:39 +1100 Date: Tue, 29 Nov 2005 15:38:39 +1100 (EST) From: Gavin Sherry To: Tom Lane cc: Qingqing Zhou , pgsql-hackers@postgresql.org Subject: Re: ice-broker scan thread In-Reply-To: <29795.1133236913@sss.pgh.pa.us> Message-ID: References: <29795.1133236913@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0 required=5 tests=[none] X-Spam-Score: 0 X-Spam-Level: X-Archive-Number: 200511/1456 X-Sequence-Number: 76738 On Mon, 28 Nov 2005, Tom Lane wrote: > Gavin Sherry writes: > > I haven't had time to prototype whether we can easily implement async IO > > Just as with any suggestion to depend on threads, you are going to have > to show results that border on astounding to have any chance of getting > this in. Otherwise the portability issues are just going to make it not > worth the trouble. The architecture I am looking at would not rely on threads. I didn't want to jump on list and waive my hands until I had something to show, but since Qingqing is looking at the issue I thought I better raise it. Gavin