tools/trace-malloc/histogram-pretty.sh

   1 #!/bin/sh
   2 #
   3 # ***** BEGIN LICENSE BLOCK *****
   4 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5 #
   6 # The contents of this file are subject to the Mozilla Public License Version
   7 # 1.1 (the "License"); you may not use this file except in compliance with
   8 # the License. You may obtain a copy of the License at
   9 # http://www.mozilla.org/MPL/
  10 #
  11 # Software distributed under the License is distributed on an "AS IS" basis,
  12 # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13 # for the specific language governing rights and limitations under the
  14 # License.
  15 #
  16 # The Original Code is historgram-diff.sh, released
  17 # Dec 8, 2000.
  18 #
  19 # The Initial Developer of the Original Code is
  20 # Netscape Communications Corporation.
  21 # Portions created by the Initial Developer are Copyright (C) 2000
  22 # the Initial Developer. All Rights Reserved.
  23 #
  24 # Contributor(s):
  25 #   Chris Waterson <waterson@netscape.com>
  26 #
  27 # Alternatively, the contents of this file may be used under the terms of
  28 # either the GNU General Public License Version 2 or later (the "GPL"), or
  29 # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  30 # in which case the provisions of the GPL or the LGPL are applicable instead
  31 # of those above. If you wish to allow use of your version of this file only
  32 # under the terms of either the GPL or the LGPL, and not to allow others to
  33 # use your version of this file under the terms of the MPL, indicate your
  34 # decision by deleting the provisions above and replace them with the notice
  35 # and other provisions required by the GPL or the LGPL. If you do not delete
  36 # the provisions above, a recipient may use your version of this file under
  37 # the terms of any one of the MPL, the GPL or the LGPL.
  38 #
  39 # ***** END LICENSE BLOCK *****
  40
  41 #   histogram-pretty.sh [-c <count>] [-w <width>] <file>
  42 #
  43 # Pretty-print the histogram in file <file>, displaying at most
  44 # <count> rows.
  45
  46 # How many rows are we gonna show?
  47 COUNT=20
  48 WIDTH=22
  49
  50 # Read arguments
  51 while [ $# -gt 0 ]; do
  52     case "$1" in
  53     -c) COUNT=$2
  54         shift 2
  55         ;;
  56     -w) WIDTH=$2
  57         shift 2
  58         ;;
  59     *)  break
  60         ;;
  61     esac
  62 done
  63
  64 FILE=$1
  65
  66 # The first `awk' script computes a `TOTAL' row. Then, we sort by the
  67 # larges delta in bytes.
  68 awk '{ tobj += $2; tbytes += $3; } END { print "TOTAL", tobj, tbytes; }' ${FILE} > /tmp/$$.sorted
  69
  70 sort -nr +2 ${FILE} >> /tmp/$$.sorted
  71
  72 # Pretty-print, including percentages
  73 cat <<EOF > /tmp/$$.awk
  74 BEGIN {
  75   printf "%-${WIDTH}s  Count    Bytes %Total   %Cov\n", "Type";
  76   }
  77 \$1 == "TOTAL" {
  78   tbytes = \$3;
  79   }
  80 NR <= $COUNT {
  81   if (\$1 != "TOTAL") {
  82     covered += \$3;
  83   }
  84   printf "%-${WIDTH}s %6d %8d %6.2lf %6.2lf\n", \$1, \$2, \$3, 100.0 * \$3 / tbytes, 100.0 * covered / tbytes;
  85   }
  86 NR > $COUNT {
  87   oobjs += \$2;  obytes += \$3; covered += \$3;
  88   }
  89 END {
  90   printf "%-${WIDTH}s %6d %8d %6.2lf %6.2lf\n", "OTHER", oobjs, obytes, obytes * 100.0 / tbytes, covered * 100.0 / tbytes;
  91   }
  92 EOF
  93
  94 # Now pretty print the file, and spit it out on stdout.
  95 awk -f /tmp/$$.awk /tmp/$$.sorted
  96
  97 rm -f /tmp/$$.awk /tmp/$$.sorted