tools/trace-malloc/histogram-diff.sh
author Benoit Jacob <bjacob@mozilla.com>
Sun, 04 Dec 2011 14:15:43 -0500
changeset 81418 432d88a73914212f73ebf3fef49925e00aea1b78
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rwxr-xr-x
Bug 707033 - Kill the hashtables of WebGLUniformLocation's held by WebGLProgram's - r=jgilbert Currently, WebGLProgram holds a hashtable of refptrs to all WebGLUniformLocation's created from it. It's used for one thing: to ensure that multiple getUniformLocation() calls on same uniform return the same WebGLUniformLocation object. However, in a discussion on the public_webgl mailing list this week, we agreed that this was not mandated by the spec and that on the contrary, to ensure consistent behavior across browsers, we're going to require that NOT to happen. So this becomes a conformance issue. Removing this hashtable also simplifies code and ownership patterns.

#!/bin/sh
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is historgram-diff.sh, released
# Dec 8, 2000.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2000
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#   Chris Waterson <waterson@netscape.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****

#   histogram-diff.sh [-c <count>] <base> <incr>
#
# Compute incremental memory growth from histogram in file <base> to
# histogram in file <incr>, displaying at most <count> rows.

# How many rows are we gonna show?
COUNT=20

# Read arguments
while [ $# -gt 0 ]; do
    case "$1" in
    -c) COUNT=$2
        shift 2
        ;;
    *)  break
        ;;
    esac
done

BASE=$1
INCR=$2

# Sort the base and incremental files so that we can `join' them on
# the type name
sort $BASE > /tmp/$$.left
sort $INCR > /tmp/$$.right

# Do the join. The `awk' script computes the difference between
# the base and the incremental files.
join /tmp/$$.left /tmp/$$.right \
    | awk '{ print $1, $2, $3, $4, $5, $4 - $2, $5 - $3; }' \
    > /tmp/$$.joined

rm -f /tmp/$$.left /tmp/$$.right

# Now compute a `TOTAL' row.
awk '{ tobj1 += $2; tbytes1 += $3; tobj2 += $4; tbytes2 += $5; tdobj += $6; tdbytes += $7; } END { print "TOTAL", tobj1, tbytes1, tobj2, tbytes2, tdobj, tdbytes; }' /tmp/$$.joined \
    > /tmp/$$.sorted

# Then, we sort by the largest delta in bytes.
sort -nr +6 /tmp/$$.joined >> /tmp/$$.sorted

rm -f /tmp/$$.joined

# Pretty-print, including percentages
cat <<EOF > /tmp/$$.awk
BEGIN {
  print "                        ---- Base ----   ---- Incr ----   ----- Difference ----";
  print "Type                    Count    Bytes   Count    Bytes   Count    Bytes %Total";
  }
\$1 == "TOTAL" {
  tbytes = \$7;
  }
NR <= $COUNT {
  printf "%-22s %6d %8d  %6d %8d  %6d %8d %6.2lf\n", \$1, \$2, \$3, \$4, \$5, \$6, \$7, 100.0 * \$7 / tbytes;
  }
NR > $COUNT {
  oobjs1 += \$2;  obytes1 += \$3;
  oobjs2 += \$4;  obytes2 += \$5;
  odobjs += \$6;  odbytes += \$7;
  }
END {
  printf "%-22s %6d %8d  %6d %8d  %6d %8d %6.2lf\n", "OTHER", oobjs1, obytes1, oobjs2, obytes2, odobjs, odbytes, odbytes * 100.0 / tbytes;
  }
EOF

# Now pretty print the file, and spit it out on stdout.
awk -f /tmp/$$.awk /tmp/$$.sorted

rm -f /tmp/$$.awk /tmp/$$.sorted