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 1vEZpo-00Daov-F1 for pgsql-hackers@arkaria.postgresql.org; Thu, 30 Oct 2025 21:05:27 +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 1vEZpn-00AXk3-1X for pgsql-hackers@arkaria.postgresql.org; Thu, 30 Oct 2025 21:05:26 +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 1vEZpm-00AXjv-Od for pgsql-hackers@lists.postgresql.org; Thu, 30 Oct 2025 21:05:25 +0000 Received: from mail-ed1-x52a.google.com ([2a00:1450:4864:20::52a]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1vEZpj-004cgX-36 for pgsql-hackers@postgresql.org; Thu, 30 Oct 2025 21:05:24 +0000 Received: by mail-ed1-x52a.google.com with SMTP id 4fb4d7f45d1cf-6399328ff1fso2730389a12.0 for ; Thu, 30 Oct 2025 14:05:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761858321; x=1762463121; darn=postgresql.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=XknBMC3QbdmC9hR2o/Rp/+Pu8sBWGeaNi2ZEjSZeF2M=; b=YE9S4CspJYNUo3VQb2sLJ6cz9bweAj5PA2O4SGcNuwWctKj/d3XIgXZhaqLrd/biQE FZHL4F5NGXu3U52G4V5z/ep5ZRzRgBA0qjIkP8j06QmTAKcUGjox22Ubxpw2ikbhfGua uJO3N53BF/NRNplWivttXKxkwBgKeCH9EvCHC7Qbd/Dl93DItuM7LPdDKTs5C92idgkF Y07qRcaw+ANYbcc+A3yqNk9aSIKfr2co89We8IlatrSltECGUjf0IAo4d7r7b3TRFejJ 4Lv6W2ZLY0ccVfY2hZGmEGvlBBc758kUEPnZMk3nUGmLvk2o2lez2UYWsz6+WMRJ2wck gAnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761858321; x=1762463121; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XknBMC3QbdmC9hR2o/Rp/+Pu8sBWGeaNi2ZEjSZeF2M=; b=FpXEs/MpLS22P5fB7OmKsjqr4SDt4fVRFomY84AyKDVF/ak14NsomviJv7tFNRqNh2 KKLcHpV/8MDrzYf1ygCDsIA+WXY8Mzo6CwD9Y5BGvaqwfmrMe3D3cqmP413fAmp4ByE/ xOYNGfrUWmKgLyc4PKE/B46kZTDO/4GkPvnI0qIFIKfYnw1pNnDVulXqIpqfy23Rdq7V 3JRZdpL4nXq0d5TtDh7VD1ISn+GbU8FglpDNdNghDIaWHG+ob7u1Pj5Q/9dsAFOADT7q s8TTAFQxkm9fQ5bW9Se8680km4tJDiNdLxdi5HnXhnZGHGcPoIs0iHgLN5Juj06+mgNM 5SHw== X-Forwarded-Encrypted: i=1; AJvYcCXd0MGJtorlsh7uLvNLv9URUxUA5dhdCEj2s+QX5aNIeLwx1Wkm2usO2W+U7kpBpmSobSIfylpfN09VDJ01@postgresql.org X-Gm-Message-State: AOJu0YytMnKwNoyNx2j9kP2/KmveAp1uU1g0RAljkJ0Aiyoi3HyfxFFn LTmaJEtggbKB52oog4NWPv10dQIdHk4KrhoVfhHeg8YvarArHKVHNO8wPeYjcuCQmSyesK3bCOi /C2iyfDxnEOoCgR2SsuVU6k/3zB9LyZY= X-Gm-Gg: ASbGncsNxCrMFVz1A8hmzDnkvAAMaekhiMGuSi8UmUoFiaAPsSNyPYIjFNfslRZIZNr hH+9Tb6z+48UXMMYuKkvcs8imXv2fcpcHklPw0Ie69d5gu42UmHyA7f9uBiZ/xqYYLkoj4S0U3F wzwP3SGCP/2hFS0Cl7y1QiroMIGKgDt7b8WRUPHrb0WTqzXeqjVf6ISn4NFqCbv64zWWp+Wz/P3 7Mr+sHHiOzdcyNOrEeZvzcbU8qJvhFvy4N9htqpz2N2fEgw6mZUk0qmE/mO5oyyQtwF2Q== X-Google-Smtp-Source: AGHT+IF/0o5I6qgn4n4ZVlq3u2Yv1GPZvv0xOPojK/VZmYiAMjV232amiSBssHWr5hTSsD5AkgbQl6dEWCTIkXAh2QM= X-Received: by 2002:a05:6402:3047:20b0:63c:1514:67cd with SMTP id 4fb4d7f45d1cf-64077012ef9mr722475a12.17.1761858321018; Thu, 30 Oct 2025 14:05:21 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Sami Imseih Date: Thu, 30 Oct 2025 16:05:09 -0500 X-Gm-Features: AWmQ_bkTUdHeLYH4A2krhBD4lqL1zwx8DV89pbF0Yy7iJJAu-E5mAhNuaBOghuo Message-ID: Subject: Re: another autovacuum scheduling thread To: Nathan Bossart Cc: Robert Haas , David Rowley , Jeremy Schneider , pgsql-hackers@postgresql.org Content-Type: text/plain; charset="UTF-8" List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On Thu, Oct 30, 2025 at 04:05:19PM -0400, Robert Haas wrote: > > Are you planning to do some practical experimentation with this? I > > feel like it would be a good idea to set up some kind of a test case > > where this is expected to provide a benefit and see if it actually > > does; and also maybe set up a test case where it will reorder the > > tables but with no practical difference in the outcome expected and > > verify that, in fact, nothing changes. > > Yes. I've been thinking through how I want to test this but have yet to > actually do so. If you have ideas, I'm all ears. FWIW, I've been putting some scripts together to test some workloads and I will share shortly what I have. -- Sami Imseih Amazon Web Services (AWS)