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 1sU7Wj-000aoX-M1 for pgsql-hackers@arkaria.postgresql.org; Wed, 17 Jul 2024 16:29:13 +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 1sU7Wh-002t22-SE for pgsql-hackers@arkaria.postgresql.org; Wed, 17 Jul 2024 16:29:12 +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 1sU7Wh-002t0z-IK for pgsql-hackers@lists.postgresql.org; Wed, 17 Jul 2024 16:29:11 +0000 Received: from mail-io1-xd36.google.com ([2607:f8b0:4864:20::d36]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1sU7Wf-000394-LF for pgsql-hackers@postgresql.org; Wed, 17 Jul 2024 16:29:10 +0000 Received: by mail-io1-xd36.google.com with SMTP id ca18e2360f4ac-8063553b837so49392839f.1 for ; Wed, 17 Jul 2024 09:29:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1721233749; x=1721838549; darn=postgresql.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Y5xGaWEDDkBcUaj826n1te0k2boH14itbLnzTd/DRA0=; b=VzIhQxrKuYsLBknFGMyLUdpnLmQFkzJlkWxqVUK4H523tBpxprT++rvz20wkpPpZnY ze7a9YuqEFXOSkMuOwfuqSLY2HsPNL5EhwuG4VSmT0zF0ptnMiwv+12Yn/SbTjC8S+88 SpB7mcDCzlzLpEftdg2TVQnX26gyAW8MFAX7Z+CkpgcTCt8PV32+LuL8rS0UjeHbwfF7 QtPIYxtbknvg6mQq8z0lrQRovl1jON3BpRRhHYxYvGLEdLra4OBM1CGrfk6yKHk+pYDZ nPnAJ2sgALgV9JzJ9UH1GbgJ9myzJEu1NDl6l4VjZ92cdLjyDl5o+PkvPHqZCmEVQtQg FNRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721233749; x=1721838549; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Y5xGaWEDDkBcUaj826n1te0k2boH14itbLnzTd/DRA0=; b=qat+QwCseA+p6EWYTSXJxLZnagi0gLAQ+2FnsZgtLQFiEkq1cqKgSmgh0/VyMBnXwI f2IZWLKynKpzv8J8ZZ04L6ZkCMHUi5Snntm44ur+5PsRvDqsvYlZVPmAiQ65mdW3ZmR8 hDKbIOdhn9PqaC817l6GqNl5Eu9G8c1/cL9F6hzqtdUAZ30M7aNz+oyDWOiwAQMczkXC LL9C3iaz1qRFmBWFb6vUcFsoDHFT9oIiA9DNjoxTcfdMj+k0QmcpjrVOfAOQG1PoDIRX nYUgdK5NPmHISBf+G8RanZF4GoqhkUInrX/n+I141z8XI1LnZ8gz/Xsnl1xd3zJCQ0yT R0uw== X-Forwarded-Encrypted: i=1; AJvYcCXxvWTeHDIVj5Zz5PCvPVqgaHeZe4uENPsVgL9EeYPMerf8ND5WIwfttYzDqfQncBxF8Br7DVR2ZgRnf76BxE/CjlKTGS6yfetSZqQr X-Gm-Message-State: AOJu0YzZ7gdeCNnM3v78Ssj1+XZsRfO/jNt1/vN96gNQR7soFL7HMqF4 ARuyEn4v1ef8MAoLeVOp25N+Me4HbXQq1UaVOtYhDd9nlxXfzlCe X-Google-Smtp-Source: AGHT+IEtX3gdLf3SU50gyZMBJNyKyaZKy+nfKRmPzTB7F6ro9Em4LFn7eGa1p98BPDmacOKHPiMNng== X-Received: by 2002:a05:6602:14c2:b0:7fa:e23a:906c with SMTP id ca18e2360f4ac-81711e17a1emr277334839f.12.1721233748567; Wed, 17 Jul 2024 09:29:08 -0700 (PDT) Received: from nathan (162-195-168-172.lightspeed.stlsmo.sbcglobal.net. [162.195.168.172]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4c210fba364sm775576173.146.2024.07.17.09.29.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Jul 2024 09:29:08 -0700 (PDT) Date: Wed, 17 Jul 2024 11:29:06 -0500 From: Nathan Bossart To: Robert Haas Cc: "Imseih (AWS), Sami" , Tom Lane , Justin Pryzby , "pgsql-hackers@postgresql.org" Subject: Re: problems with "Shared Memory and Semaphores" section of docs Message-ID: References: <20240517192123.GA1933425@nathanxps13> 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 On Sun, Jun 09, 2024 at 02:04:17PM -0500, Nathan Bossart wrote: > Here's a new version of the patch with the GUC renamed to > num_os_semaphores. The only thing stopping me from committing this right now is Tom's upthread objection about adding more GUCs that just expose values that you can't actually set. If that objection still stands, I'll withdraw this patch (and maybe try introducing a new way to surface this information someday). -- nathan