DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 538IkDNH2216150 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 538IkDNH2216150 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=Nc3B2tWV X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E372D385AC35 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1744137971; bh=SEW47EZ7cI1L5ZiTN/YUodwjpAYOgFNKMI8jr3tRfrQ=; h=Date:Subject:To:References:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=Nc3B2tWVQRMJuMH4X6kEgbzmllTg0ki1ZLrSg4seQgZ3AjEMZylrh4vn4U9Ic+i1b fwQCbx5YHKvLRvcLNAu9JR1StjFWGXt27tLS2coqTXvUjhjWNlVbZGaeBwc09mghi9 sTxJg6kdOVfwALwHUooksP6SMWW+wLOLqUGtqx/s= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 0A7853857023 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 0A7853857023 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1744137948; cv=none; b=Nlb4UWcF6I2Cc1MZwsgcPorReZZY+/lKhLSTT0csjjzyvstW+QpjuiivtRgqpi54l5bK8IVVOqZ00DikFAX7/LKtzbmAmMox8U7e3D3nlkm6DE7DchCn8wWbxxWJ6ZiIrbKRbYwpQJMu4/4Q6h7DEH4jIwNmwnCUlXJBMyJ0dxQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1744137948; c=relaxed/simple; bh=z4sWNSmaDLayeVzyZKJk8deSvWIkZCEb5u+ujLpzk68=; h=Message-ID:Date:MIME-Version:From:Subject:To:DKIM-Signature; b=IH1LL1w1PWNc8HNG6a5FRp/gTUNgi2y7mWwI4sGZiB/5+rJPILJVIZMBVsw3rZVuWjjM+YSbWXIgaR+c/2OwI/FDHvrMsiU5PWss1mKp6TTRb/Dt7XEMRuMm7ksjTOIesuzNsOW+GNAQpNLANuGntx6YhV5D1e21N/NhLqLmPEY= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0A7853857023 Message-ID: <41fc4806-f26d-46e5-af71-d9d6d18e64c4@SystematicSW.ab.ca> Date: Tue, 8 Apr 2025 12:45:45 -0600 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Tuning ls, ls -l, find ., find . -ls performance for very large dirs (60000+ files/dir) To: cygwin AT cygwin DOT com References: Content-Language: en-CA Organization: Systematic Software In-Reply-To: X-Stat-Signature: k3yyn91yr9k31etwfrmgtpum68gsxwwq X-Rspamd-Server: rspamout04 X-Rspamd-Queue-Id: 2312C6000D X-Session-Marker: 427269616E2E496E676C69734053797374656D6174696353572E61622E6361 X-Session-ID: U2FsdGVkX18PxY/Pa5PaRh6XcjYkpubNnqNe78/U2wA= X-HE-Tag: 1744137946-875317 X-HE-Meta: U2FsdGVkX1+lXLnwg6lK93YvsRjYi2mRE0FOhlT6pRvxr7lvt+9msQ6cdzY7fx4NdQIR82yGuhdkoDXluE0BI04HkggUGPevLBqusDoy5+zgbNzcuiD+/f/X9m7+5cP9SRgoRCCEzKk/54At886U81ZNMyJ29DjRtAoFss3XGKRslgBxUHoE8YlaCO+1MgWc5mAuvDvNN1E4ZD8eOr5OyqwkmgIy7Znh3zwWjx7MIFb+KA/ORVM4hEvPUaAlJkJr05Ikc3PKCET5JJrWGcSyr+hSXpl4F9Ut0A6hGPJmeWAeEH2NxxnO+ruWyZyItYAWvcFBe8XiIfGge1mapCR9rxH1Je4g3fY8 X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Brian Inglis via Cygwin Reply-To: cygwin AT cygwin DOT com Cc: Brian Inglis Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 538IkDNH2216150 On 2025-04-08 12:05, Mark Liam Brown via Cygwin wrote: > Greetings! > > Are there tuning variables to improve ls, ls -l, find ., find . -ls > performance for very large dirs? > > If we have a SMB dir with 60000+ entries a simple ls -l can take MANY > minutes (22+mins), while cmd.exe dir just floods the terminal with > results immediately. AFAIK Cygwin stat(3) is slow because of the Windows calls it has to make and alternate suffixes also have to be tried multiplying the time. -- Take care. Thanks, Brian Inglis Calgary, Alberta, Canada La perfection est atteinte Perfection is achieved non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add mais lorsqu'il n'y a plus rien à retrancher but when there is no more to cut -- Antoine de Saint-Exupéry -- 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