tools/trace-malloc/histogram-diff.sh@97036ab72558
tools/trace-malloc/histogram-diff.sh
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rwxr-xr-x
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 #!/bin/sh
2 #
3 # This Source Code Form is subject to the terms of the Mozilla Public
4 # License, v. 2.0. If a copy of the MPL was not distributed with this
5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 # histogram-diff.sh [-c <count>] <base> <incr>
8 #
9 # Compute incremental memory growth from histogram in file <base> to
10 # histogram in file <incr>, displaying at most <count> rows.
12 # How many rows are we gonna show?
13 COUNT=20
15 # Read arguments
16 while [ $# -gt 0 ]; do
17 case "$1" in
18 -c) COUNT=$2
19 shift 2
20 ;;
21 *) break
22 ;;
23 esac
24 done
26 BASE=$1
27 INCR=$2
29 # Sort the base and incremental files so that we can `join' them on
30 # the type name
31 sort $BASE > /tmp/$$.left
32 sort $INCR > /tmp/$$.right
34 # Do the join. The `awk' script computes the difference between
35 # the base and the incremental files.
36 join /tmp/$$.left /tmp/$$.right \
37 | awk '{ print $1, $2, $3, $4, $5, $4 - $2, $5 - $3; }' \
38 > /tmp/$$.joined
40 rm -f /tmp/$$.left /tmp/$$.right
42 # Now compute a `TOTAL' row.
43 awk '{ tobj1 += $2; tbytes1 += $3; tobj2 += $4; tbytes2 += $5; tdobj += $6; tdbytes += $7; } END { print "TOTAL", tobj1, tbytes1, tobj2, tbytes2, tdobj, tdbytes; }' /tmp/$$.joined \
44 > /tmp/$$.sorted
46 # Then, we sort by the largest delta in bytes.
47 sort -nr +6 /tmp/$$.joined >> /tmp/$$.sorted
49 rm -f /tmp/$$.joined
51 # Pretty-print, including percentages
52 cat <<EOF > /tmp/$$.awk
53 BEGIN {
54 print " ---- Base ---- ---- Incr ---- ----- Difference ----";
55 print "Type Count Bytes Count Bytes Count Bytes %Total";
56 }
57 \$1 == "TOTAL" {
58 tbytes = \$7;
59 }
60 NR <= $COUNT {
61 printf "%-22s %6d %8d %6d %8d %6d %8d %6.2lf\n", \$1, \$2, \$3, \$4, \$5, \$6, \$7, 100.0 * \$7 / tbytes;
62 }
63 NR > $COUNT {
64 oobjs1 += \$2; obytes1 += \$3;
65 oobjs2 += \$4; obytes2 += \$5;
66 odobjs += \$6; odbytes += \$7;
67 }
68 END {
69 printf "%-22s %6d %8d %6d %8d %6d %8d %6.2lf\n", "OTHER", oobjs1, obytes1, oobjs2, obytes2, odobjs, odbytes, odbytes * 100.0 / tbytes;
70 }
71 EOF
73 # Now pretty print the file, and spit it out on stdout.
74 awk -f /tmp/$$.awk /tmp/$$.sorted
76 rm -f /tmp/$$.awk /tmp/$$.sorted
