Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754660AbYKBT1t (ORCPT ); Sun, 2 Nov 2008 14:27:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752924AbYKBT1m (ORCPT ); Sun, 2 Nov 2008 14:27:42 -0500 Received: from x35.xmailserver.org ([64.71.152.41]:53472 "EHLO x35.xmailserver.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752901AbYKBT1m (ORCPT ); Sun, 2 Nov 2008 14:27:42 -0500 X-AuthUser: davidel@xmailserver.org Date: Sun, 2 Nov 2008 11:27:40 -0800 (PST) From: Davide Libenzi X-X-Sender: davide@alien.or.mcafeemobile.com To: Olaf van der Spek cc: Linux Kernel Mailing List Subject: Re: epoll behaviour after running out of descriptors In-Reply-To: Message-ID: References: X-GPG-FINGRPRINT: CFAE 5BEE FD36 F65E E640 56FE 0974 BF23 270F 474E X-GPG-PUBLIC_KEY: http://www.xmailserver.org/davidel.asc MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1203 Lines: 35 On Sun, 2 Nov 2008, Olaf van der Spek wrote: > On Sun, Nov 2, 2008 at 8:17 PM, Davide Libenzi wrote: > > On Sun, 2 Nov 2008, Olaf van der Spek wrote: > > > >> On Sun, Nov 2, 2008 at 7:48 PM, Davide Libenzi wrote: > >> > Why don't you grep for TIME_WAIT? > >> > >> Because I don't have access to the test environment at the moment. > > > > Here: > > > > http://tinyurl.com/5ay86v > > I know what TIME_WAIT is. I just think it's not applicable to this situation. It is. You are saturating the port space, so no new POLLIN/accept events are sent (until some TIME_WAIT clears), so epoll_wait() returns nothing (or does not return, if INF timeo). Keeping only 1K (if this is what you meant with your *only* 1K) connections *alive*, does not mean the trail that does moving 1K connections leave, is free. If you ever played with things like httperf, you should know what I'm talking about. - Davide -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/