freebsd-src/contrib/elftoolchain/ar/benchmark/acp.sh
Ed Maste 3fe401a500 Add ELF Tool Chain's ar(1) and elfdump(1) to contrib
ELF Tool Chain built on FreeBSD's ar and elfdump, but has a number of
improvements and enhancements. Bring them into contrib in order to start
integrating into our build.
2015-07-30 12:41:54 +00:00

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#!/bin/sh
# $Id: acp.sh 2086 2011-10-27 05:18:01Z jkoshy $
# This script is adapted from Jan Psota's Tar Comparison Program(TCP).
n=3 # number of repetitions
AR="bsdar gnuar" # ar archivers to compare
test $# -ge 2 || {
echo "usage: $0 source_dir where_to_place_archive [where_to_extract_it]"
exit 0
}
THISDIR=`/bin/pwd`
src=$1
dst=$2/acp.a
ext=${3:-$2}/acptmp
test -e $dst -o -e /tmp/acp \
&& { echo "$dst or /tmp/acp exists, exiting"; exit 1; }
mkdir -p $ext || exit 1
show_result ()
{
awk -vL="`du -k $dst`" '{printf "%s\t%s\t%s\%10.1d KB/s\n",
$1, $3, $5, ($1>0?L/$1:0)}' /tmp/acp | sort | head -n 1
}
test -d $src || { echo "'$src' is not a directory"; exit 1; }
# ar versions
for ar in $AR; do echo -n "$ar: "; $ar -V | head -n 1;
done
echo
echo "best time of $n repetitions"
echo -n " src=$src, "
echo -n "`du -sh $src | awk '{print $1}'`"
echo -n " in "
echo "`find $src | wc -l` files"
echo " archive=$dst, extract to $ext"
echo "program operation real user system speed"
for op in "cru $dst $src/*" "t $dst" "x `basename $dst`"; do
for ar in $AR; do
echo -n "$ar "
echo $op | grep -q ^cr && echo -n "create "
echo $op | grep -q ^t && echo -n "list "
echo $op | grep -q ^x && echo -n "extract "
num=0
while [ $num -lt $n ]; do
echo $op | grep -q ^cr && rm -f $dst
echo $op | grep -q ^x && { rm -rf $ext; mkdir -p $ext
cp $dst $ext; cd $ext; }
sync
time $ar $op > /dev/null 2>> /tmp/acp
echo $op | grep -q ^x && cd $THISDIR
num=`expr $num + 1`
done
show_result
rm -rf /tmp/acp
done
echo
done
rm -rf $ext $dst
rm -f /tmp/acp