mirror of
https://github.com/facebook/zstd.git
synced 2025-11-04 00:02:59 -05:00
105 lines
2.6 KiB
Bash
Executable File
105 lines
2.6 KiB
Bash
Executable File
# !/bin/sh
|
|
set -e
|
|
|
|
# Benchmarks run on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
|
|
# The VM is running on a Macbook Pro with a 3.1 GHz Intel Core i7 processor and
|
|
# 16 GB of RAM and an SSD.
|
|
|
|
# silesia is a directory that can be downloaded from
|
|
# http://mattmahoney.net/dc/silesia.html
|
|
# ls -l silesia/
|
|
# total 203M
|
|
# -rwxr-xr-x 1 terrelln 9.8M Apr 12 2002 dickens
|
|
# -rwxr-xr-x 1 terrelln 49M May 31 2002 mozilla
|
|
# -rwxr-xr-x 1 terrelln 9.6M Mar 20 2003 mr
|
|
# -rwxr-xr-x 1 terrelln 32M Apr 2 2002 nci
|
|
# -rwxr-xr-x 1 terrelln 5.9M Jul 4 2002 ooffice
|
|
# -rwxr-xr-x 1 terrelln 9.7M Apr 11 2002 osdb
|
|
# -rwxr-xr-x 1 terrelln 6.4M Apr 2 2002 reymont
|
|
# -rwxr-xr-x 1 terrelln 21M Mar 25 2002 samba
|
|
# -rwxr-xr-x 1 terrelln 7.0M Mar 24 2002 sao
|
|
# -rwxr-xr-x 1 terrelln 40M Mar 25 2002 webster
|
|
# -rwxr-xr-x 1 terrelln 8.1M Apr 4 2002 x-ray
|
|
# -rwxr-xr-x 1 terrelln 5.1M Nov 30 2000 xml
|
|
|
|
# $HOME is on a ext4 filesystem
|
|
BENCHMARK_DIR="$HOME/silesia/"
|
|
N=10
|
|
|
|
# Normalize the environment
|
|
sudo umount /mnt/btrfs 2> /dev/null > /dev/null || true
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
|
sudo rm -rf /mnt/btrfs/*
|
|
sync
|
|
sudo umount /mnt/btrfs
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
|
|
|
# Run the benchmark
|
|
echo "Compression"
|
|
time sh -c "for i in \$(seq $N); do sudo cp -r $BENCHMARK_DIR /mnt/btrfs/\$i; done; sync"
|
|
|
|
echo "Approximate compression ratio"
|
|
printf "%d / %d\n" \
|
|
$(df /mnt/btrfs --output=used -B 1 | tail -n 1) \
|
|
$(sudo du /mnt/btrfs -b -d 0 | tr '\t' '\n' | head -n 1);
|
|
|
|
# Unmount and remount to avoid any caching
|
|
sudo umount /mnt/btrfs
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
|
|
|
echo "Decompression"
|
|
time sudo tar -c /mnt/btrfs 2> /dev/null | wc -c > /dev/null
|
|
|
|
sudo rm -rf /mnt/btrfs/*
|
|
sudo umount /mnt/btrfs
|
|
|
|
# Run for each of -o compress-force={none, lzo, zlib, zstd} 5 times and take the
|
|
# min time and ratio.
|
|
# Ran zstd with compression levels {1, 3, 6, 9, 12, 15}.
|
|
# Original size: 2119415342 B (using du /mnt/btrfs)
|
|
|
|
# none
|
|
# compress: 4.205 s
|
|
# decompress: 3.090 s
|
|
# ratio: 0.99
|
|
|
|
# lzo
|
|
# compress: 5.328 s
|
|
# decompress: 4.793 s
|
|
# ratio: 1.66
|
|
|
|
# zlib
|
|
# compress: 32.588 s
|
|
# decompress: 8.791 s
|
|
# ratio : 2.58
|
|
|
|
# zstd 1
|
|
# compress: 8.147 s
|
|
# decompress: 5.527 s
|
|
# ratio : 2.57
|
|
|
|
# zstd 3
|
|
# compress: 12.207 s
|
|
# decompress: 5.195 s
|
|
# ratio : 2.71
|
|
|
|
# zstd 6
|
|
# compress: 30.253 s
|
|
# decompress: 5.324 s
|
|
# ratio : 2.87
|
|
|
|
# zstd 9
|
|
# compress: 49.659 s
|
|
# decompress: 5.220 s
|
|
# ratio : 2.92
|
|
|
|
# zstd 12
|
|
# compress: 99.245 s
|
|
# decompress: 5.193 s
|
|
# ratio : 2.93
|
|
|
|
# zstd 15
|
|
# compress: 196.997 s
|
|
# decompress: 5.992 s
|
|
# ratio : 3.01
|