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 1uPNYG-006Zko-FK for pgsql-admin@arkaria.postgresql.org; Wed, 11 Jun 2025 15:39:44 +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 1uPNYE-004A5Q-5F for pgsql-admin@arkaria.postgresql.org; Wed, 11 Jun 2025 15:39:42 +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 1uPNYD-004A5G-QM for pgsql-admin@lists.postgresql.org; Wed, 11 Jun 2025 15:39:42 +0000 Received: from mail-oo1-xc33.google.com ([2607:f8b0:4864:20::c33]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1uPNYC-001S8F-2Z for pgsql-admin@postgresql.org; Wed, 11 Jun 2025 15:39:41 +0000 Received: by mail-oo1-xc33.google.com with SMTP id 006d021491bc7-60be8b6f1e2so20346eaf.1 for ; Wed, 11 Jun 2025 08:39:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1749656380; x=1750261180; darn=postgresql.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=CqPkVnGFaL9NyKlwTGyCxRhh9cfpdBepoF+UDKdhE+8=; b=F2pjRnGZhTcSDT5bt8dKaXFeM13JxwGVswuvV9CwfhYMt4f04M4rtdve50YwMj29JH E1tXkkidtQvojp5yq4kDMtaqVd+eiEvZMVDDd/LMF0zRUcbRj92THOuOPvWivU4DkJwC NZSCbY6m6dT+zS+IEeeqkAR/itjrMQ2j7D4q3CMS/k65L0pI4s4/HCvoExbKLf1abX2f uDh97+sPj/X5jncuZPwjJN0Z8lkgVwKsYUCxdnA7Ag0OBQOKFmtIDld6ksj1WGnL0VzP CPPvoVRXsH9XA+x/TKivLKARouqNdi68oF06XaHh+b9apd2wPT/qUXjw9Z7sttkxUGsu 6edg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749656380; x=1750261180; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=CqPkVnGFaL9NyKlwTGyCxRhh9cfpdBepoF+UDKdhE+8=; b=nAqnH39dvsh9fvSozFWMl7dxVZJQwFWudvZGjIlvFFvygOvX/cv7WPz5lBg+3udwLG 4G+EPxoASpl2pDe2ee5kUkGYg9FC+6kZtJQS2CTNaNCLrQIt7Ph1i6+nXxOobypUtv01 RaWobqjIByIUQRMdrpO5hUTk/4lEuO1s765JGJ0A4HBCNz/jrhCPP/k0IMWKwkK1EK0j Zcmci5K+xHFnsnqBnussHCzpq+nv4u8lqkpYwqnVqYeTg7Xzgiw1Bp2H1Liixxs1u14b yPG8jv75SIaHVi/0ndTj5b9lqC0nzTXp1wLjHjoM9YXLuih8Wo2KDIXQAT/hNFAquCta +Dow== X-Gm-Message-State: AOJu0YzCszXz9J6lOT/qShr041co1SUvSIwBMGNnWisw2Bmy/gjDOMBo trEtv6LQNeAScH0bTLJMG/4dCHXCpyJMemgPwbcQanzYUoUas9aA5dIv2c/a9TrMroq0w4ZR1R/ c2bh5Jzvn8T9mlS9GZ/26unmw1974qZhBrw== X-Gm-Gg: ASbGnctcBAm7u/gf+QqOTINdQiNesgnkfBSV2cpFCHGXmkXtsLnu3fXv+tor8PZBq4c E4wcYahiNExci23fkkkacUjYSiebu9UAKa/CXAnRobotEWuzevzW+WCT0BNjp0Ab43+GZotTQ8b p7yF2LH+lxsnF1mNQ5ACVv4KJie5WlSsPtAr9V2l92yK3t X-Google-Smtp-Source: AGHT+IFat+ffwcJupo6B+Uem3oLri5rNRTkXvMKQlVfKy0u1/NnaU80FltW1fhBroY9xDnLPcMKcAzESAssJxi+fpjw= X-Received: by 2002:a05:6870:1697:b0:2b8:e6f2:ba7e with SMTP id 586e51a60fabf-2ea96c3cfacmr2191773fac.12.1749656379966; Wed, 11 Jun 2025 08:39:39 -0700 (PDT) MIME-Version: 1.0 From: Ron Johnson Date: Wed, 11 Jun 2025 11:39:29 -0400 X-Gm-Features: AX0GCFsB3rQmZ2GRbLU_CyT3Mul9SoB_rfIS2ADWujlb5427D2QfLwrwx3XEhBQ Message-ID: Subject: pg_upgrade --copy-file-range recommendations? To: pgsql-admin Content-Type: multipart/alternative; boundary="00000000000001c87306374d9f8b" List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --00000000000001c87306374d9f8b Content-Type: text/plain; charset="UTF-8" Are there any guidelines on using this option (like there are for the --clone and --sync-method options)? For example, my system is: OS: RHEL 8.10 FS: xfs Kernel: 4.18.0-mumble-mumble -- Death to , and butter sauce. Don't boil me, I'm still alive. lobster! --00000000000001c87306374d9f8b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Are there any guidelines on using this option (like t= here are for the --clone and --sync-method options)?

For example, my system is:
OS: RHEL 8.10
FS: xfs
Kernel: 4.18.0-mumble-mumble

--
Death to <Redacted= >, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!
--00000000000001c87306374d9f8b--