First checked in.

tools/footprint/README.reports

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+                 Gross Dynamic Footprint Reports
+             Chris Waterson <waterson@netscape.com>
+                      November 16, 2000
+
+This is a short primer on how to run the ``gross dynamic footprint''
+reports.
+
+Win32
+-----
+
+I've tried this on Win2K. Should work on NT, probably not 98.
+
+1. Configure your machine with a ``standard'' mozilla build
+environment, as described at:
+
+  http://www.mozilla.org/build/win32.html
+
+Specifically, you'll need the Cygnus tools (GNU make, awk, sed), which
+can be downloaded from:
+
+  http://sourceware.cygnus.com/cygwin/download.html
+
+2. Install the Win32 version of GNUplot, avaialable from:
+
+  ftp://ftp.dartmouth.edu/pub/gnuplot/gnuplot3.7cyg.zip
+
+3. Configure a web server with the ``buster.cgi'' CGI script contained
+in this directory.
+
+4. Pull and build a ``release'' build. Besides the normal Win32 flags
+described on the Win32 build instructions, be sure that you've set the
+following:
+
+  set BUILD_OPT=1
+  set MOZ_DEBUG=
+  set MOZ_PROFILE=
+
+That is, MOZ_DEBUG and MOZ_PROFILE should be unset.
+
+5. To collect data and build the dynamic footprint graph, type the
+following command from the mozilla/tools/footprint directory:
+
+  make --unix -fwin32-gdf.mk \
+    BUSTER_URL="http://myserver/cgi-bin/buster.cgi?refresh=10"
+
+(Replace ``myserver'' with the name of the webserver where you
+installed ``buster.cgi'' in step 3, above.)
+
+This should:
+
+  - Build ``wm.exe'', which will spy on memory usage.
+  - Run the winEmbed program over the top 100 URLs (from top100.txt)
+    to generate a file called ``winEmbed.dat''
+  - Run mozilla over the top 100 URLs to generate a file called
+    ``mozilla.dat''
+  - Use gnuplot to create a PNG image file called win32-gdf.png
+
+Linux
+-----
+
+1. Configure your machine with a ``standard'' mozilla build
+environment, as described at:
+
+  http://www.mozilla.org/build/unix.html
+
+2. Install GNUplot, which is available as an RPM on RedHat-6.2 CDs
+(probably others, as well).
+
+3. Configure a web server with the ``buster.cgi'' CGI script contained
+in this directory.
+
+4. Pull and build a ``release build''. Here are the settings you
+should use in your .mozconfig file:
+
+   ac_add_options --enable-optimize
+   ac_add_options --disable-debug
+   ac_add_options --enable-strip-libs
+
+5. To collect data and build the dynamic footprint graph, type the
+following command from the mozilla/tools/footprint directory:
+
+  make -flinux-gdf.mk \
+    BUSTER_URL="http://myserver/cgi-bin/buster.cgi?refresh=10"
+
+(Replace ``myserver'' with the name of the webserver where you
+installed ``buster.cgi'' in step 3, above.)
+
+Details, details, details
+-------------------------
+
+1. When running these tests, you'll probably want to use predictable
+cache settings. You can modify $(DIST)/bin/defaults/pref/all.js to
+tweak settings that will be used by [win|gtk]Embed (these programs
+ignore profile-specific settings AFAIK). For example, I've used these
+to try to cull out cache usage altogether:
+
+  pref("browser.cache.disk_cache_size",       0);
+  pref("browser.cache.enable",                false);
+  pref("browser.cache.disk.enable",           false);
+  pref("browser.cache.memory_cache_size",     0);
+  pref("browser.cache.disk_cache_ssl",        false);
+
+I think the image cache has a pref that you can use to shut it off as
+well. Haven't found it yet.
+
+2. If you collect data using Mozilla (as Win32 will do, by default), I
+recommend using a clean profile for consistency's sake. Otherwise,
+results will vary based on random stuff like how big your bookmarks
+are, how big your global history is, whether or not you've started
+mail, etc.