Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m19IP-0001kC-LT for pgsql-hackers@arkaria.postgresql.org; Wed, 07 Jul 2021 15:17:05 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1m19IO-0002lO-KF for pgsql-hackers@arkaria.postgresql.org; Wed, 07 Jul 2021 15:17:04 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m19IO-0002lG-Cf for pgsql-hackers@lists.postgresql.org; Wed, 07 Jul 2021 15:17:04 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m19IJ-00041j-69 for pgsql-hackers@lists.postgresql.org; Wed, 07 Jul 2021 15:17:03 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 167FGvnD1836636; Wed, 7 Jul 2021 11:16:57 -0400 From: Tom Lane To: Peter Eisentraut cc: pgsql-hackers@lists.postgresql.org Subject: Re: "debug_invalidate_system_caches_always" is too long In-reply-to: References: <1374320.1625430433@sss.pgh.pa.us> Comments: In-reply-to Peter Eisentraut message dated "Wed, 07 Jul 2021 10:37:15 +0200" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1836634.1625671017.1@sss.pgh.pa.us> Date: Wed, 07 Jul 2021 11:16:57 -0400 Message-ID: <1836635.1625671017@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Peter Eisentraut writes: > The clobbering doesn't actually happen unless you turn on > CLOBBER_FREED_MEMORY, so it would be good to keep that separate. Fair point. What do you think of the alternative proposals "debug_flush_caches", "debug_discard_caches", etc? regards, tom lane