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40 lines
1.3 KiB
40 lines
1.3 KiB
4 months ago
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# !/bin/sh
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set -e
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# Benchmarks run on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
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# The VM is running on a Macbook Pro with a 3.1 GHz Intel Core i7 processor and
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# 16 GB of RAM and an SSD.
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# $BENCHMARK_DIR is generated with the following commands, from the Ubuntu image
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# ubuntu-16.10-desktop-amd64.iso.
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# > mkdir mnt
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# > sudo mount -o loop ubuntu-16.10-desktop-amd64.iso mnt
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# > cp mnt/casper/filesystem.squashfs .
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# > sudo unsquashfs filesystem.squashfs
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# $HOME is on a ext4 filesystem
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BENCHMARK_DIR="$HOME/squashfs-root/"
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BENCHMARK_FS="$HOME/filesystem.squashfs"
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# Normalize the environment
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sudo rm -f $BENCHMARK_FS 2> /dev/null > /dev/null || true
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sudo umount /mnt/squashfs 2> /dev/null > /dev/null || true
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# Run the benchmark
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echo "Compression"
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echo "sudo mksquashfs $BENCHMARK_DIR $BENCHMARK_FS $@"
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time sudo mksquashfs $BENCHMARK_DIR $BENCHMARK_FS $@ 2> /dev/null > /dev/null
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echo "Approximate compression ratio"
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printf "%d / %d\n" \
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$(sudo du -sx --block-size=1 $BENCHMARK_DIR | cut -f1) \
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$(sudo du -sx --block-size=1 $BENCHMARK_FS | cut -f1);
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# Mount the filesystem
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sudo mount -t squashfs $BENCHMARK_FS /mnt/squashfs
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echo "Decompression"
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time sudo tar -c /mnt/squashfs 2> /dev/null | wc -c > /dev/null
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sudo umount /mnt/squashfs
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