Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Sat, 2 Aug 2003 18:02:44 -0700 (PDT) From: vikramshrowty AT yahoo DOT com X-X-Sender: vikram AT hidis DOT cjb DOT net Reply-To: vikramshrowty AT fastmail DOT fm To: cygwin AT cygwin DOT com Subject: cygwin performance hit Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Hi, Im seeing a severe perfomance hit from cygwin. Heres the result of $time make_depend with a cygwin-compiled makedepend: ------------------------------------------------------------------------ 2.65user 27.90system 9:22.59elapsed 5%CPU (0avgtext+0avgdata 49856maxresident)k 0inputs+0outputs (3190major+0minor)pagefaults 0swaps ------------------------------------------------------------------------ and heres the output from a -mno-cygwin compiled makedepend:(the same code) ------------------------------------------------------------------------ 0.09user 0.04system 2:13.47elapsed 0%CPU (0avgtext+0avgdata 43280maxresident)k 0inputs+0outputs (2781major+0minor)pagefaults 0swaps ------------------------------------------------------------------------ I ran an strace on the cywinized makdepend and ran a sort -k 1 -r on the output.( to sort the functions by the time-delta). There are a lot of calls to GetFileAttributes at the top of the sorted output...like this ------------------------------------------------------------------------ 97332 19244539 [main] build_makedepend 331 symlink_info::check: GetFileAttributes (\\asic-auth\homes\NT\dev\src\tool\tool-list\sys.h) failed ------------------------------------------------------------------------ Thats a network mounted directory so I suppose some slowdown is expected but shouldnt the native (-mno-cygwin) version see the same slowdown? Is there a reason for cygwin-compiled programs to see a larger hit? Thanks, --Vikram -- 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/