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 1tudJe-00AKWW-0S for pgsql-committers@arkaria.postgresql.org; Tue, 18 Mar 2025 20:13:34 +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 1tudJc-004UmQ-KK for pgsql-committers@arkaria.postgresql.org; Tue, 18 Mar 2025 20:13:32 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tudJc-004Ukr-BF for pgsql-committers@lists.postgresql.org; Tue, 18 Mar 2025 20:13:32 +0000 Received: from fhigh-a8-smtp.messagingengine.com ([103.168.172.159]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tudJY-003cx9-1M for pgsql-committers@lists.postgresql.org; Tue, 18 Mar 2025 20:13:31 +0000 Received: from phl-compute-10.internal (phl-compute-10.phl.internal [10.202.2.50]) by mailfhigh.phl.internal (Postfix) with ESMTP id C949E11400E7; Tue, 18 Mar 2025 16:13:27 -0400 (EDT) Received: from phl-mailfrontend-01 ([10.202.2.162]) by phl-compute-10.internal (MEProxy); Tue, 18 Mar 2025 16:13:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anarazel.de; h= cc:cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:subject :subject:to:to; s=fm1; t=1742328807; x=1742415207; bh=VXjIe+fu7O gbGenc48p7Ng5DiCB68hnSTijk58nfuLQ=; b=tWjtWiWs/Igc0TqRaSclj++mfb YdZnY2Qx33zEhE3391thQozB5wifndYz8dpx6E82dw0Y3sNLxdNXwQRUUOfjicZP P1FhWeasqfNUJBdna4hbIaQlgAlFsKKDpepaM51xKrLw6Cq3EZhwYyk2fx3k7cLe ka1a0SyUrP+jz+U2Sq0SwqsexYL/RBn8hlVQKq5g6cFgjQgBH8GzaGQ4C4XJgzvS TvaMKZpC+/xGJx18STAzV4HxhNqsWeWr/MUavAqD2bhPFKUj9WZADT6lKSbP8lba hL+tEqxYcoV2UNo74/aeD6KtyLtIAfh9vJJbmBTGd2xTEvHDbT2NnBcxh7FQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1742328807; x=1742415207; bh=VXjIe+fu7OgbGenc48p7Ng5DiCB68hnSTij k58nfuLQ=; b=n8vMU4wlLlVK8iNbSn1/ru+iz5ixWz9LCrGYRTrgbiBRtA+QV/c ZXwMqVPG5004vjASyorpylOUD+pdYasJ6YkBsBvZXcAufy8dzUSxFNP0N+T2Nz4j cXXwVvEjdrvCSmO8lwgvRFQbc8ReIvO9lZlRoK2PhE2odliNnnNEAQZvrWLw0hbZ 7BUF4fV2sk5TUV+xYGKSg6edDcfTsER1csX/bW/GYnni3I21BEi3MoWN//Z5BKZL SN+SbzICPzgP69+yLDzmzdGhhD/8PDsS+MJFICIOHPRKWnXqLpz8eDMRwVoLtYUC ZOf0uZQCDPXQC8Sw7EWe4msbTkyp+2tIDMg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddugeeffeejucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggv pdfurfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpih gvnhhtshculddquddttddmnecujfgurhepfffhvfevuffkfhggtggujgesthdtsfdttddt vdenucfhrhhomheptehnughrvghsucfhrhgvuhhnugcuoegrnhgurhgvshesrghnrghrrg iivghlrdguvgeqnecuggftrfgrthhtvghrnhepfeffgfelvdffgedtveelgfdtgefghfdv kefggeetieevjeekteduleevjefhueegnecuvehluhhsthgvrhfuihiivgeptdenucfrrg hrrghmpehmrghilhhfrhhomheprghnughrvghssegrnhgrrhgriigvlhdruggvpdhnsggp rhgtphhtthhopeefpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehmvghlrghnih gvphhlrghgvghmrghnsehgmhgrihhlrdgtohhmpdhrtghpthhtohepphhgshhqlhdqtgho mhhmihhtthgvrhhssehlihhsthhsrdhpohhsthhgrhgvshhqlhdrohhrghdprhgtphhtth hopegsrhhutggvsehmohhmjhhirghnrdhush X-ME-Proxy: Feedback-ID: id4a34324:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 18 Mar 2025 16:13:27 -0400 (EDT) Date: Tue, 18 Mar 2025 16:13:26 -0400 From: Andres Freund To: Bruce Momjian Cc: Melanie Plageman , pgsql-committers@lists.postgresql.org Subject: Re: pgsql: Increase default maintenance_io_concurrency to 16 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Hi, On 2025-03-18 16:08:22 -0400, Bruce Momjian wrote: > This commit makes our default random_page_cost = 4 out of line with > these new settings (assumes modern SSD/NAS/SAN hardware) and more out of > line with reality. How so? That seems like an independent consideration to me. Greetings, Andres Freund