1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#! /bin/sh
set -e
# Size to test in MB.
BIG=30
make mkrandom
echo Testing ${BIG}MB of random
./mkrandom $BIG 0 0 > /tmp/rzip.random
# Get starting size
./rzip -k -o /tmp/rzip.random.rz /tmp/rzip.random
BASE_SIZE=`ls -l /tmp/rzip.random.rz | awk '{print $5}'`
rm /tmp/rzip.random /tmp/rzip.random.rz
echo Gain for ${BIG}MB: `expr $BASE_SIZE - $BIG \* 1024 \* 1024`
echo `echo "scale=5; ( $BASE_SIZE - $BIG * 1024 * 1024 ) * 100 / ( $BIG * 1024 * 1024 )" | bc` percent.
for size in 10 100 1000 10000 100000; do
for dups in 1 4 16; do
./mkrandom $BIG $size $dups > /tmp/rzip.random
./rzip -k -o /tmp/rzip.random.rz /tmp/rzip.random
SIZE=`ls -l /tmp/rzip.random.rz | awk '{print $5}'`
rm /tmp/rzip.random /tmp/rzip.random.rz
PERCENT=`echo "scale=5; ( $BASE_SIZE - $SIZE ) * 100 / ( $dups * $size )" | bc`
echo "Improvement for $dups x $size: `expr $BASE_SIZE - $SIZE` $PERCENT%"
done
done
|
