Message-Id: <200505162135.j4GLZCXC008360@delorie.com> Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com From: "Gary R. Van Sickle" To: Subject: RE: Please test latest snapshot Date: Mon, 16 May 2005 16:38:13 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: X-IsSubscribed: yes [snip uberslow network traverse] > > I don't know if there is a reasonable way to speed this up, > because you want to ensure that //machine exists before > allowing `cd //machine' to succeed, but don't want to go > stat'ing every machine on the network when doing a readdir() on //. > I can think of one way: go to a "thread pool" sort of arrangement where you spawn off a thread to wait for the (non-)responses from network PCs in parallel. This would reduce the worst-case traverse time from O(Ttimeout) to O(Ttimeout/Nsize-of-threapool). Of course, this would require massive changes to ls, and would unnecessarily slow down and increase resource usage of the most common use case of ls, namely getting a simple directory listing of files on a local disk. -- Gary R. Van Sickle -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/