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Re: Speed of Make 3.79.1
From: |
Paul D. Smith |
Subject: |
Re: Speed of Make 3.79.1 |
Date: |
Mon, 18 Feb 2002 18:18:05 -0500 |
%% "David Murrells" <address@hidden> writes:
dm> We've recently moved to GNU Make 3.79.1 (from 3.77) on Windows NT
Are you using the GNU make versions, or the Cygnus versions?
dm> and have noticed that on a large project there seems to be a
dm> noticeable drop in speed. The drop is very noticeable during the
dm> automatic dependency checking which is done at the beginning of a
dm> build. Our dependency checking is done in a standard emough way
dm> (a .d file for each object file, with the .d file containing all
dm> the dependencies, and all the .d file included from a centralised
dm> makefile). The examination of all the dependencies in 3.79.1 is
dm> noticeably slower than it was in 3.77. I was just wondering if
dm> anyone else had noticed/investigated this behaviour and could
dm> provide some pointers in my investigation.
I'm not aware of anything that might be causing this, no. I also
haven't noticed (or had reported to me) any similar drop in speed on
UNIX systems.
You might check my web pages below for a method of dependency tracking
which might be better for you; certainly it will avoid any time spent
trying to rebuild the makefiles.
Obviously this doesn't solve the underlying problem: if you come up with
some information on why the NT version is slow you might want to share
it with address@hidden which is where many of the
Windows-knowledgeable GNU make users hang out.
--
-------------------------------------------------------------------------------
Paul D. Smith <address@hidden> Find some GNU make tips at:
http://www.gnu.org http://www.paulandlesley.org/gmake/
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist