tools/trace-malloc/histogram-diff.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-diff.sh [-c <count>] <base> <incr>
  42 #
  43 # Compute incremental memory growth from histogram in file <base> to
  44 # histogram in file <incr>, displaying at most <count> rows.
  45
  46 # How many rows are we gonna show?
  47 COUNT=20
  48
  49 # Read arguments
  50 while [ $# -gt 0 ]; do
  51     case "$1" in
  52     -c) COUNT=$2
  53         shift 2
  54         ;;
  55     *)  break
  56         ;;
  57     esac
  58 done
  59
  60 BASE=$1
  61 INCR=$2
  62
  63 # Sort the base and incremental files so that we can `join' them on
  64 # the type name
  65 sort $BASE > /tmp/$$.left
  66 sort $INCR > /tmp/$$.right
  67
  68 # Do the join. The `awk' script computes the difference between
  69 # the base and the incremental files.
  70 join /tmp/$$.left /tmp/$$.right \
  71     | awk '{ print $1, $2, $3, $4, $5, $4 - $2, $5 - $3; }' \
  72     > /tmp/$$.joined
  73
  74 rm -f /tmp/$$.left /tmp/$$.right
  75
  76 # Now compute a `TOTAL' row.
  77 awk '{ tobj1 += $2; tbytes1 += $3; tobj2 += $4; tbytes2 += $5; tdobj += $6; tdbytes += $7; } END { print "TOTAL", tobj1, tbytes1, tobj2, tbytes2, tdobj, tdbytes; }' /tmp/$$.joined \
  78     > /tmp/$$.sorted
  79
  80 # Then, we sort by the largest delta in bytes.
  81 sort -nr +6 /tmp/$$.joined >> /tmp/$$.sorted
  82
  83 rm -f /tmp/$$.joined
  84
  85 # Pretty-print, including percentages
  86 cat <<EOF > /tmp/$$.awk
  87 BEGIN {
  88   print "                        ---- Base ----   ---- Incr ----   ----- Difference ----";
  89   print "Type                    Count    Bytes   Count    Bytes   Count    Bytes %Total";
  90   }
  91 \$1 == "TOTAL" {
  92   tbytes = \$7;
  93   }
  94 NR <= $COUNT {
  95   printf "%-22s %6d %8d  %6d %8d  %6d %8d %6.2lf\n", \$1, \$2, \$3, \$4, \$5, \$6, \$7, 100.0 * \$7 / tbytes;
  96   }
  97 NR > $COUNT {
  98   oobjs1 += \$2;  obytes1 += \$3;
  99   oobjs2 += \$4;  obytes2 += \$5;
 100   odobjs += \$6;  odbytes += \$7;
 101   }
 102 END {
 103   printf "%-22s %6d %8d  %6d %8d  %6d %8d %6.2lf\n", "OTHER", oobjs1, obytes1, oobjs2, obytes2, odobjs, odbytes, odbytes * 100.0 / tbytes;
 104   }
 105 EOF
 106
 107 # Now pretty print the file, and spit it out on stdout.
 108 awk -f /tmp/$$.awk /tmp/$$.sorted
 109
 110 rm -f /tmp/$$.awk /tmp/$$.sorted