1*01826a49SYabin Cui# !/bin/sh 2*01826a49SYabin Cuiset -e 3*01826a49SYabin Cui 4*01826a49SYabin Cui# Benchmarks run on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM. 5*01826a49SYabin Cui# The VM is running on a Macbook Pro with a 3.1 GHz Intel Core i7 processor and 6*01826a49SYabin Cui# 16 GB of RAM and an SSD. 7*01826a49SYabin Cui 8*01826a49SYabin Cui# silesia is a directory that can be downloaded from 9*01826a49SYabin Cui# http://mattmahoney.net/dc/silesia.html 10*01826a49SYabin Cui# ls -l silesia/ 11*01826a49SYabin Cui# total 203M 12*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 9.8M Apr 12 2002 dickens 13*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 49M May 31 2002 mozilla 14*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 9.6M Mar 20 2003 mr 15*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 32M Apr 2 2002 nci 16*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 5.9M Jul 4 2002 ooffice 17*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 9.7M Apr 11 2002 osdb 18*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 6.4M Apr 2 2002 reymont 19*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 21M Mar 25 2002 samba 20*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 7.0M Mar 24 2002 sao 21*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 40M Mar 25 2002 webster 22*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 8.1M Apr 4 2002 x-ray 23*01826a49SYabin Cui# -rwxr-xr-x 1 terrelln 5.1M Nov 30 2000 xml 24*01826a49SYabin Cui 25*01826a49SYabin Cui# $HOME is on a ext4 filesystem 26*01826a49SYabin CuiBENCHMARK_FILE="linux-4.11.6.tar" 27*01826a49SYabin CuiBENCHMARK_DIR="$HOME/$BENCHMARK_FILE" 28*01826a49SYabin Cui 29*01826a49SYabin Cui# Normalize the environment 30*01826a49SYabin Cuisudo umount /mnt/btrfs 2> /dev/null > /dev/null || true 31*01826a49SYabin Cuisudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs 32*01826a49SYabin Cuisudo rm -rf /mnt/btrfs/* 33*01826a49SYabin Cuisync 34*01826a49SYabin Cuisudo umount /mnt/btrfs 35*01826a49SYabin Cuisudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs 36*01826a49SYabin Cui 37*01826a49SYabin Cui# Run the benchmark 38*01826a49SYabin Cuiecho "Copy" 39*01826a49SYabin Cuitime sh -c "sudo cp -r $BENCHMARK_DIR /mnt/btrfs/$BENCHMARK_FILE && sync" 40*01826a49SYabin Cui 41*01826a49SYabin Cuiecho "Approximate tarred compression ratio" 42*01826a49SYabin Cuiprintf "%d / %d\n" \ 43*01826a49SYabin Cui $(df /mnt/btrfs --output=used -B 1 | tail -n 1) \ 44*01826a49SYabin Cui $(sudo du /mnt/btrfs -b -d 0 | tr '\t' '\n' | head -n 1); 45*01826a49SYabin Cui 46*01826a49SYabin Cui# Unmount and remount to avoid any caching 47*01826a49SYabin Cuisudo umount /mnt/btrfs 48*01826a49SYabin Cuisudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs 49*01826a49SYabin Cui 50*01826a49SYabin Cuiecho "Extract" 51*01826a49SYabin Cuitime sh -c "sudo tar -C /mnt/btrfs -xf /mnt/btrfs/$BENCHMARK_FILE && sync" 52*01826a49SYabin Cui 53*01826a49SYabin Cui# Remove the tarball, leaving only the extracted data 54*01826a49SYabin Cuisudo rm /mnt/btrfs/$BENCHMARK_FILE 55*01826a49SYabin Cui# Unmount and remount to avoid any caching 56*01826a49SYabin Cuisudo umount /mnt/btrfs 57*01826a49SYabin Cuisudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs 58*01826a49SYabin Cui 59*01826a49SYabin Cuiecho "Approximate extracted compression ratio" 60*01826a49SYabin Cuiprintf "%d / %d\n" \ 61*01826a49SYabin Cui $(df /mnt/btrfs --output=used -B 1 | tail -n 1) \ 62*01826a49SYabin Cui $(sudo du /mnt/btrfs -b -d 0 | tr '\t' '\n' | head -n 1); 63*01826a49SYabin Cui 64*01826a49SYabin Cuiecho "Read" 65*01826a49SYabin Cuitime sudo tar -c /mnt/btrfs 2> /dev/null | wc -c > /dev/null 66*01826a49SYabin Cui 67*01826a49SYabin Cuisudo rm -rf /mnt/btrfs/* 68*01826a49SYabin Cuisudo umount /mnt/btrfs 69*01826a49SYabin Cui 70*01826a49SYabin Cui# Run for each of -o compress-force={none, lzo, zlib, zstd} 5 times and take the 71*01826a49SYabin Cui# min time and ratio. 72*01826a49SYabin Cui 73*01826a49SYabin Cui# none 74*01826a49SYabin Cui# copy: 0.981 s 75*01826a49SYabin Cui# extract: 5.501 s 76*01826a49SYabin Cui# read: 8.807 s 77*01826a49SYabin Cui# tarball ratio: 0.97 78*01826a49SYabin Cui# extracted ratio: 0.78 79*01826a49SYabin Cui 80*01826a49SYabin Cui# lzo 81*01826a49SYabin Cui# copy: 1.631 s 82*01826a49SYabin Cui# extract: 8.458 s 83*01826a49SYabin Cui# read: 8.585 s 84*01826a49SYabin Cui# tarball ratio: 2.06 85*01826a49SYabin Cui# extracted ratio: 1.38 86*01826a49SYabin Cui 87*01826a49SYabin Cui# zlib 88*01826a49SYabin Cui# copy: 7.750 s 89*01826a49SYabin Cui# extract: 21.544 s 90*01826a49SYabin Cui# read: 11.744 s 91*01826a49SYabin Cui# tarball ratio : 3.40 92*01826a49SYabin Cui# extracted ratio: 1.86 93*01826a49SYabin Cui 94*01826a49SYabin Cui# zstd 1 95*01826a49SYabin Cui# copy: 2.579 s 96*01826a49SYabin Cui# extract: 11.479 s 97*01826a49SYabin Cui# read: 9.389 s 98*01826a49SYabin Cui# tarball ratio : 3.57 99*01826a49SYabin Cui# extracted ratio: 1.85 100