Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qhCy9-001eVt-Mb for pgsql-hackers@arkaria.postgresql.org; Fri, 15 Sep 2023 17:51:05 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1qhCy7-002Kgs-DJ for pgsql-hackers@arkaria.postgresql.org; Fri, 15 Sep 2023 17:51:03 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qhCy7-002KgW-2B for pgsql-hackers@lists.postgresql.org; Fri, 15 Sep 2023 17:51:03 +0000 Received: from smtp.outgoing.loopia.se ([93.188.3.37]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qhCxz-004lB8-8K for pgsql-hackers@postgresql.org; Fri, 15 Sep 2023 17:51:01 +0000 Received: from s807.loopia.se (localhost [127.0.0.1]) by s807.loopia.se (Postfix) with ESMTP id 28EE92FAAEC5 for ; Fri, 15 Sep 2023 19:50:52 +0200 (CEST) Received: from s899.loopia.se (unknown [172.22.191.6]) by s807.loopia.se (Postfix) with ESMTP id 198502E2A3C2; Fri, 15 Sep 2023 19:50:52 +0200 (CEST) Received: from s473.loopia.se (unknown [172.22.191.6]) by s899.loopia.se (Postfix) with ESMTP id 14F382C8BAB4; Fri, 15 Sep 2023 19:50:52 +0200 (CEST) X-Virus-Scanned: amavisd-new at amavis.loopia.se X-Spam-Flag: NO X-Spam-Score: -1.01 X-Spam-Level: X-Spam-Status: No, score=-1.01 tagged_above=-999 required=6.2 tests=[ALL_TRUSTED=-1, T_SCC_BODY_TEXT_LINE=-0.01] autolearn=disabled Received: from s899.loopia.se ([172.22.191.6]) by s473.loopia.se (s473.loopia.se [172.22.190.13]) (amavisd-new, port 10024) with LMTP id JlpsAkc21huk; Fri, 15 Sep 2023 19:50:51 +0200 (CEST) X-Loopia-Auth: user X-Loopia-User: daniel@yesql.se X-Loopia-Originating-IP: 89.255.232.193 Received: from smtpclient.apple (customer-89-255-232-193.stosn.net [89.255.232.193]) (Authenticated sender: daniel@yesql.se) by s899.loopia.se (Postfix) with ESMTPSA id A0A1C2C8BACB; Fri, 15 Sep 2023 19:50:51 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.3\)) Subject: Re: Small patch modifying variable name to reflect the logic involved From: Daniel Gustafsson In-Reply-To: Date: Fri, 15 Sep 2023 19:50:51 +0200 Cc: PostgreSQL Hackers Content-Transfer-Encoding: quoted-printable Message-Id: <25C2B047-66B4-4291-A26B-B42359D91A5C@yesql.se> References: To: Krishnakumar R X-Mailer: Apple Mail (2.3696.120.41.1.3) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On 14 Sep 2023, at 11:30, Daniel Gustafsson wrote: >=20 >> On 14 Sep 2023, at 08:28, Krishnakumar R wrote: >=20 >> Please find a small patch to improve code readability by modifying >> variable name to reflect the logic involved - finding diff between = end >> and start time of WAL sync. >=20 > - INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_sync_time, duration, = start); > + INSTR_TIME_SET_CURRENT(end); > + INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_sync_time, end, = start); >=20 > Agreed, the duration is the result of the INSTR_TIME_ACCUM_DIFF = calculation, > not what's stored in the instr_time variable. And done, with a small fixup to handle another occurrence in the same = file. -- Daniel Gustafsson