DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 614LIfOd678509 Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 614LIfOd678509 Authentication-Results: delorie.com; dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=lDQyGWb5 X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 84DD84BA2E13 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1770239920; bh=9nSnctinUQOKAafoEd3mgL1HFFQOXFiOUVIgHMq14Ws=; h=Date:Subject:To:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=lDQyGWb5ui9e17XwMh2xqApQtsV1AZ/gzAKhWubHnNO37qpuRt/ykOBD4TL/FUuUr YK8caPOkjnh6lRloxO1M7twZ9LGGWJdwLlx8qWIT7lyzjDB8vjEWc/hnx29iaeLGrV UlYwG6rUfLyiwGOeNX8lZMl0JtYvCzkunepW5wx8= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6A52D4BA543C ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 6A52D4BA543C ARC-Seal: i=2; a=rsa-sha256; d=sourceware.org; s=key; t=1770239869; cv=pass; b=Uko5mLeWHDlKmVd4DSk7h/jPhoJKpr14rfR7BLf9QdDgPObu1MuCaZtvomX3lLb4leungMX5PiGPG8sVMRhMR/ibwKGGxI6cZIqbgNLpriZdrWxzTBWELv2hQZT7PTJT9mwmSaHskO2sv5h75pS+bERQBp5NLDTVVMXAg6p5aXo= ARC-Message-Signature: i=2; a=rsa-sha256; d=sourceware.org; s=key; t=1770239869; c=relaxed/simple; bh=vKLiCA0tKzUTC+5Fk2bU5+NKeq/yfHP8HWBo0f6AIEs=; h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To; b=Q81uM1VUQW03b6IsGUbiZBVoYDhWTLVHB0SqXMHnqTz+tISSsc6ykZIuEoAp8iVjn0zYaV9Q0uFCxUpT3YlMD9yie6zj/CBp4496PtAQowGPo0Z8VKgWaGvfktMxn2fern8U/eNXrrG2jeQoxphUZXljkEETLMEGeIMuwNajvEk= ARC-Authentication-Results: i=2; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6A52D4BA543C ARC-Seal: i=1; a=rsa-sha256; t=1770239868; cv=none; d=google.com; s=arc-20240605; b=AVvk1ot0mMCKTbu0MivQJWwPYomy/eGrvAEFgoulDdukHxDSyy4/Fo1gYFp0hL38UD yRbtYmNhZ/ZsDGQxSZvWHRGfJ5iU03MsNIPJQw+TRaLfvI5DZ6A6dF1WpJy1wRFMcvo3 LnbIpB0xdhfNTp4P107dmTQis8Y+Zqoth9l6e2KuyB4IHqDN6ocPTA71IUlwJjL37KxF f793YymHyKsNY+tH4yVRtNOqwUkrNrIKmwXs9qTyp9wgEHc5kK552grzDT3roR058JsS pDTWdCdkghHOL0jvuGW/AfgI7HKHtuUT8OZ8DltknSxK2aCShtn7HssBLaXXqtyixtSd vrIw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=to:subject:message-id:date:from:mime-version:dkim-signature; bh=zVN5KH5JhIbXE9GsII7EHGLBR4+Llv8w69GBAEnqh38=; fh=UKNFaOBO97U3RYl3PEse//nArTqr7SLJjCCEBz281Ew=; b=fxv/jp4ysBYZGUqokvS3nbH5SDE00HkSlVBlsRgtnWSrpnUQvZ3mdvwPOnOVlm3Q/p dBKICHmAlw8Td6xy8ntox8iqeg5KvJVEmMtZeVUScfNPdx4jC0jMLspOsSIXmzTifX31 9LCto0BrozvSQoMGBIoemQE0Dukt3yFRU/860XXBMCA4z1NCuVyknmUhqobct5b8REMh T+nAQ1dsgU0gX2Wkekho6VY+lQzyF2UFqSuOXAs+W9p14FPL/Nxic823FKlGaOOGDQT1 Eo2SrOsCatk3w068z7HEbhmjno2hb01HIc48nmeh741X99P4nGhhLPxBkGxphB5oKu8g jJ9g==; darn=cygwin.com ARC-Authentication-Results: i=1; mx.google.com; arc=none X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770239868; x=1770844668; h=to:subject:message-id:date:from:mime-version:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=zVN5KH5JhIbXE9GsII7EHGLBR4+Llv8w69GBAEnqh38=; b=dux1Npx0w6IZtxDdg1hFoHGH1HJwyjcWc8YhazhfOH7lpUaUW8hJQgaJVK2XU4ev18 RTP/Jl9tOZKnkc5v2LG5TubAAdFS2kjb6G5cnjxVugtpLvqURxFjUvDnr7ylRiaKFT84 jEWyEeSyD6kdKIELnww42eCh4EeGs5lmDZ3zM7k5q2xN+hHd3v6IBY7STLBRj9LBb6SD 4W16Ra0j+OmJM3hE1e2kYbTg1l/ERBppC02MbBk7oyQDwJCWtB2lAGE+9rw/DN/Z7Th9 uCgqWbFOGTMjQm586oxkZ7CoSQJyWkxqfc5vsY0FTaviifr2OT+PRO79hl4c+IyF/C5q LiNw== X-Gm-Message-State: AOJu0YxZzhyrhklcxBqf4hp1OUfTtljpLERWMGQ1eO9bmcdgzQiJ8ntt Kjj+P1fXsxfVxZYa/HVEpZTDvng/VATsFP+4lv3daHLS3jKBcyrvLyTXsekb4v5INzaobETiknH Yip31WSaYcuseBZ9G1KnfE8AlrgAelcK3p7zCb3s= X-Gm-Gg: AZuq6aJ+zJ7PiKCV+O/oew6VrnQ9jeLJPy+ILjN2kqtevKGQ4zD78mQwtPK9C3PkXH3 ERGa35vtDtyKlaHGYykzpZhSVX1atctqtbDLCp6ENipmeZwuN4QuP+6bLxoKBN0EDDhkCWcUWpv ARFmxkGfnwEAG2XP2GOLT5NUOFeJgocA6bXeImTFlbAqdXDMFI53YGW9wF9XweQtVLy+clh/4CV lOK7z9p3wWbiB453i8JsrK+c8MZBzERX/U+q+HzK0nd4JcpE3wom/+y1e0sbZ2ZdhkoZE5fdhEa Tm7DfA== X-Received: by 2002:ac2:4bc1:0:b0:59e:1986:e9cb with SMTP id 2adb3069b0e04-59e38c0740bmr1682486e87.12.1770239867670; Wed, 04 Feb 2026 13:17:47 -0800 (PST) MIME-Version: 1.0 Date: Wed, 4 Feb 2026 22:17:00 +0100 X-Gm-Features: AZwV_Qgn9ZBKoK2aTA8LeWRLg2ppn-VPS7D5JiUyeRGtGfFQ-m-lDIS9mGP2_gg Message-ID: Subject: Why does Cygwin always use absolute paths instead of OBJECT_ATTRIBUTES.RootDirectory? To: cygwin AT cygwin DOT com X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 List-Id: General Cygwin discussions and problem reports List-Archive: List-Post: List-Help: List-Subscribe: , From: Dan Shelton via Cygwin Reply-To: Dan Shelton Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Cygwin" Hello, Why does Cygwin always use absolute paths instead of OBJECT_ATTRIBUTES.RootDirectory in NtOpenFile(), NtSetInformationFile() for rename and hardlinks This slows down Cygwin path lookups a lot, and with lots of path elements each lookup with a relative RootDirectory might be a lot faster, e.g. for openat(), linkat(), renameat(). Dan -- Dan Shelton - Cluster Specialist Win/Lin/Bsd -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple