The Tor Browser: security/nss/lib/freebl/mpi/timetest@b8a032363ba2 (annotated)

security/nss/lib/freebl/mpi/timetest@b8a032363ba2 (annotated)

security/nss/lib/freebl/mpi/timetest

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rwxr-xr-x

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 #!/bin/sh
 # Simple timing test for the MPI library.  Basically, we use prime
 # generation as a timing test, since it exercises most of the pathways
 # of the library fairly heavily.  The 'primegen' tool outputs a line
 # summarizing timing results.  We gather these and process them for
 # statistical information, which is collected into a file.
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 # Avoid using built-in shell echoes
 ECHO=/bin/echo
 MAKE=gmake
 PERL=perl
 # Use a fixed seed so timings will be more consistent
 # This one is the 11th-18th decimal digits of 'e'
 #export SEED=45904523
 SEED=45904523; export SEED
 #------------------------------------------------------------------------
 $ECHO "\n** Running timing tests for MPI library\n"
 $ECHO "Bringing 'metime' up to date ... "
 if $MAKE metime ; then
     :
 else
     $ECHO "\nMake failed to build metime.\n"
     exit 1
 fi
 if [ ! -x ./metime ] ; then
     $ECHO "\nCannot find 'metime' program, testing cannot continue.\n"
     exit 1
 fi
 #------------------------------------------------------------------------
 $ECHO "Bringing 'primegen' up to date ... "
 if $MAKE primegen ; then
     :
 else
     $ECHO "\nMake failed to build primegen.\n"
     exit 1
 fi
 if [ ! -x ./primegen ] ; then
     $ECHO "\nCannot find 'primegen' program, testing cannot continue.\n"
     exit 1
 fi
 #------------------------------------------------------------------------
 rm -f timing-results.txt
 touch timing-results.txt
 sizes="256 512 1024 2048"
 ntests=10
 trap 'echo "oop!";rm -f tt*.tmp timing-results.txt;exit 0' INT HUP
 $ECHO "\n-- Modular exponentiation\n"
 $ECHO "Modular exponentiation:" >> timing-results.txt
 $ECHO "Running $ntests modular exponentiations per test:"
 for size in $sizes ; do
     $ECHO "- Gathering statistics for $size bits ... "
     secs=`./metime $ntests $size | tail -1 | awk '{print $2}'`
     $ECHO "$size: " $secs " seconds per op" >> timing-results.txt
     tail -1 timing-results.txt
 done
 $ECHO "<done>";
 sizes="256 512 1024"
 ntests=1
 $ECHO "\n-- Prime generation\n"
 $ECHO "Prime generation:" >> timing-results.txt
 $ECHO "Generating $ntests prime values per test:"
 for size in $sizes ; do
     $ECHO "- Gathering statistics for $size bits ... "
     ./primegen $size $ntests | grep ticks | awk '{print $7}' | tr -d '(' > tt$$.tmp
     $ECHO "$size:" >> timing-results.txt
     $PERL stats tt$$.tmp >> timing-results.txt
     tail -1 timing-results.txt
     rm -f tt$$.tmp
 done
 $ECHO "<done>"
 trap 'rm -f tt*.tmp timing-results.txt' INT HUP
 exit 0

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