#!/bin/sh # # 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 oqr # 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 Netscape are # Copyright (C) 2000 Netscape Communications Corporation. All # Rights Reserved. # # Contributor(s): # Chris Waterson # # This shell script takes two `object histograms' produced using # `histogram.pl' and prints the delta, sorted such that the objects # that increased the most in raw memory usage are displayed at the # top. # # Usage: # # histogram-pretty.sh [-c ] # # Pretty-print the histogram in file , displaying at most # 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 FILE=$1 # The first `awk' script computes a `TOTAL' row. Then, we sort by the # larges delta in bytes. awk '{ tobj += $2; tbytes += $3; } END { print "TOTAL", tobj, tbytes; }' ${FILE} > /tmp/$$.sorted sort -nr +2 ${FILE} >> /tmp/$$.sorted # Pretty-print, including percentages cat < /tmp/$$.awk BEGIN { print "Type Count Bytes %Total"; } \$1 == "TOTAL" { tbytes = \$3; } NR <= $COUNT { printf "%-22s %6d %8d %6.2lf\n", \$1, \$2, \$3, 100.0 * \$3 / tbytes; } NR > $COUNT { oobjs += \$2; obytes += \$3; } END { printf "%-22s %6d %8d %6.2lf\n", "OTHER", oobjs, obytes, obytes * 100.0 / tbytes; } EOF # Now pretty print the file, and spit it out on stdout. awk -f /tmp/$$.awk /tmp/$$.sorted rm -f /tmp/$$.awk /tmp/$$.sorted