www.delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2009/02/10/10:29:42

X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.1 required=5.0 tests=BAYES_05,SPF_HELO_PASS,SPF_PASS
X-Spam-Check-By: sourceware.org
Message-ID: <49919D0A.4060901@telcobridges.com>
Date: Tue, 10 Feb 2009 10:28:10 -0500
From: Jasmin Letendre <jasmin DOT letendre AT telcobridges DOT com>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1b3pre) Gecko/20081203 Shredder/3.0b2pre
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: make extremely slow on 64bit Windows
X-SGHeloLookup-Result: hardfail smtp.helo=telcobridges.com (does not match 208.71.8.41)
X-SGOP-RefID: str=0001.0A09020B.49919D0B.0379,ss=1,fgs=0 (_st=1 _vt=0 _iwf=0)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

Hi,

Since I installed Windows 64 bits on a new PC, I found out that 'make' 
now runs about 8 times slower than on Windows 32bits (not the compiler, 
only the time 'make' takes to spawn the compiler). The speed degradation 
seems to be related to the spawning of new processes. For example, if I 
make a target that only calls 'echo' 20 times (instead of compiling), it 
takes about 3-4 secs, so almost 200ms per call. And I get the same 
result if I replace 'echo' by any other call.

Is it a known fact that process spawning (or maybe shell spawning) is so 
much slower on 64 bits? I've been looking in the mailing-lists and on 
the net but I didn't find any clear answer to that question.

What could I do to speed up 'make'?

Jasmin


--
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/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019