1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tools/trace-malloc/histogram-pretty.sh Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +#!/bin/sh
1.5 +#
1.6 +# This Source Code Form is subject to the terms of the Mozilla Public
1.7 +# License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 +# file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.9 +
1.10 +# histogram-pretty.sh [-c <count>] [-w <width>] <file>
1.11 +#
1.12 +# Pretty-print the histogram in file <file>, displaying at most
1.13 +# <count> rows.
1.14 +
1.15 +# How many rows are we gonna show?
1.16 +COUNT=20
1.17 +WIDTH=22
1.18 +
1.19 +# Read arguments
1.20 +while [ $# -gt 0 ]; do
1.21 + case "$1" in
1.22 + -c) COUNT=$2
1.23 + shift 2
1.24 + ;;
1.25 + -w) WIDTH=$2
1.26 + shift 2
1.27 + ;;
1.28 + *) break
1.29 + ;;
1.30 + esac
1.31 +done
1.32 +
1.33 +FILE=$1
1.34 +
1.35 +# The first `awk' script computes a `TOTAL' row. Then, we sort by the
1.36 +# larges delta in bytes.
1.37 +awk '{ tobj += $2; tbytes += $3; } END { print "TOTAL", tobj, tbytes; }' ${FILE} > /tmp/$$.sorted
1.38 +
1.39 +sort -nr +2 ${FILE} >> /tmp/$$.sorted
1.40 +
1.41 +# Pretty-print, including percentages
1.42 +cat <<EOF > /tmp/$$.awk
1.43 +BEGIN {
1.44 + printf "%-${WIDTH}s Count Bytes %Total %Cov\n", "Type";
1.45 + }
1.46 +\$1 == "TOTAL" {
1.47 + tbytes = \$3;
1.48 + }
1.49 +NR <= $COUNT {
1.50 + if (\$1 != "TOTAL") {
1.51 + covered += \$3;
1.52 + }
1.53 + printf "%-${WIDTH}s %6d %8d %6.2lf %6.2lf\n", \$1, \$2, \$3, 100.0 * \$3 / tbytes, 100.0 * covered / tbytes;
1.54 + }
1.55 +NR > $COUNT {
1.56 + oobjs += \$2; obytes += \$3; covered += \$3;
1.57 + }
1.58 +END {
1.59 + printf "%-${WIDTH}s %6d %8d %6.2lf %6.2lf\n", "OTHER", oobjs, obytes, obytes * 100.0 / tbytes, covered * 100.0 / tbytes;
1.60 + }
1.61 +EOF
1.62 +
1.63 +# Now pretty print the file, and spit it out on stdout.
1.64 +awk -f /tmp/$$.awk /tmp/$$.sorted
1.65 +
1.66 +rm -f /tmp/$$.awk /tmp/$$.sorted
