Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cmDxJ-00036V-3S for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Mar 2017 06:23:13 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1cmDxI-0001Hf-CV for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Mar 2017 06:23:12 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1cmDvp-00072t-3m for pgsql-hackers@postgresql.org; Fri, 10 Mar 2017 06:21:41 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1cmDvi-000696-TK for pgsql-hackers@postgresql.org; Fri, 10 Mar 2017 06:21:40 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id v2A6LSBQ022896; Fri, 10 Mar 2017 01:21:28 -0500 From: Tom Lane To: Amit Kapila cc: Robert Haas , Michael Paquier , Dilip Kumar , Tomas Vondra , Jim Nasby , Andres Freund , pgsql-hackers Subject: Re: Speed up Clog Access by increasing CLOG buffers In-reply-to: References: <4a52a34f-57fa-7bcf-d34c-c15db40f0361@2ndquadrant.com> <956b695d-f6c5-d652-bf0c-cea95981547c@BlueTreble.com> <5275bf49-545e-e189-48c5-17b5defc45a2@2ndquadrant.com> <04e39ac9-af28-0fda-8f72-7268197d281f@2ndquadrant.com> <84c22fbb-b9c4-a02f-384b-b4feb2c67193@2ndquadrant.com> ! <9010.1489112253@sss.pgh.pa.us> <20807.1489123260@sss.pgh.pa.us> Comments: In-reply-to Amit Kapila message dated "Fri, 10 Mar 2017 11:43:40 +0530" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <22894.1489126888.1@sss.pgh.pa.us> Date: Fri, 10 Mar 2017 01:21:28 -0500 Message-ID: <22895.1489126888@sss.pgh.pa.us> X-Pg-Spam-Score: -1.9 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-hackers Precedence: bulk Sender: pgsql-hackers-owner@postgresql.org Amit Kapila writes: > Just to let you know that I think I have figured out the reason of > failure. If we run the regressions with attached patch, it will make > the regression tests fail consistently in same way. The patch just > makes all transaction status updates to go via group clog update > mechanism. This does *not* give me a warm fuzzy feeling that this patch was ready to commit. Or even that it was tested to the claimed degree. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers