From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id 0MH4EAPOjl/DRQAA0tVLHw (envelope-from ) for ; Tue, 20 Oct 2020 11:46:11 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id cMHpDAPOjl/iEgAA1q6Kng (envelope-from ) for ; Tue, 20 Oct 2020 11:46:11 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id C01F994014A for ; Tue, 20 Oct 2020 11:46:10 +0000 (UTC) Received: from localhost ([::1]:56720 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUq5h-0001xq-C0 for larch@yhetil.org; Tue, 20 Oct 2020 07:46:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58484) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kUq5a-0001xD-RZ for bug-guix@gnu.org; Tue, 20 Oct 2020 07:46:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:60502) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kUq5Z-0004AV-Np for bug-guix@gnu.org; Tue, 20 Oct 2020 07:46:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kUq5Z-0003Xd-N5 for bug-guix@gnu.org; Tue, 20 Oct 2020 07:46:01 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#43850: cuirass: inconsistent SQL queries execution time. Resent-From: Mathieu Othacehe Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Tue, 20 Oct 2020 11:46:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43850 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: 43850@debbugs.gnu.org Received: via spool by 43850-submit@debbugs.gnu.org id=B43850.160319432211323 (code B ref 43850); Tue, 20 Oct 2020 11:46:01 +0000 Received: (at 43850) by debbugs.gnu.org; 20 Oct 2020 11:45:22 +0000 Received: from localhost ([127.0.0.1]:43814 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kUq4w-0002vu-8G for submit@debbugs.gnu.org; Tue, 20 Oct 2020 07:45:22 -0400 Received: from eggs.gnu.org ([209.51.188.92]:51582) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kUq4u-0002ob-Eg for 43850@debbugs.gnu.org; Tue, 20 Oct 2020 07:45:20 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54254) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUq4p-0003xo-4T for 43850@debbugs.gnu.org; Tue, 20 Oct 2020 07:45:15 -0400 Received: from [2a01:e0a:19b:d9a0:50c1:4a69:300e:4531] (port=53436 helo=cervin) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kUq4n-0008Q7-Lg for 43850@debbugs.gnu.org; Tue, 20 Oct 2020 07:45:14 -0400 From: Mathieu Othacehe References: <87a6wyhviz.fsf@gnu.org> <87362gg35r.fsf@gnu.org> Date: Tue, 20 Oct 2020 13:45:12 +0200 In-Reply-To: <87362gg35r.fsf@gnu.org> (Mathieu Othacehe's message of "Wed, 14 Oct 2020 18:53:20 +0200") Message-ID: <87362986k7.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -1.51 X-TUID: rIYx+mHlgDSj Hello, > this should improve the situation, even if I still observe some > inconsistent execution duration. I tried to use the two following pragma: --8<---------------cut here---------------start------------->8--- PRAGMA synchronous = OFF PRAGMA mmap_size = 10737418240 --8<---------------cut here---------------end--------------->8--- hoping that mmaping the Cuirass database and disabling synchronisation would help, but there were still inconsistent duration. I have now copied the database to a tmpfs mounted directory to make sure that those inconsistent duration are only caused by the I/O pressure on berlin. Thanks, Mathieu