61 lines
1.4 KiB
Bash
Executable File
61 lines
1.4 KiB
Bash
Executable File
#!/bin/bash -eu
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#
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# Run the set of "canonical" benchmarks that are shown on
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# https://nuetzlich.net/gocryptfs/comparison/
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# against the directory passed as "$1".
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#
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# This is called by the top-level script "benchmark.bash".
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MYNAME=$(basename "$0")
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if [ $# -ne 1 ]; then
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echo "usage: $MYNAME TESTDIR"
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exit 1
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fi
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# Resolve possible relative TESTDIR path before cd'ing away
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TESTDIR=$(realpath "$1")
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# Download /tmp/linux-3.0.tar.gz
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cd "$(dirname "$0")"
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MD5="$PWD/stress_tests/linux-3.0.md5sums"
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./dl-linux-tarball.bash
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# cd to TESTDIR
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cd "$TESTDIR"
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# Execute command, discard all stdout output, print elapsed time
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# (to stderr, unfortunately).
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function etime {
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# Make the bash builtin "time" print out only the elapsed wall clock
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# seconds
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TIMEFORMAT=%R
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time "$@" > /dev/null
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}
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echo -n "WRITE: "
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dd if=/dev/zero of=zero bs=131072 count=2000 conv=fsync 2>&1 | tail -n 1
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# Drop cache of file "zero", otherwise we are benchmarking the
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# page cache. Borrowed from
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# https://www.gnu.org/software/coreutils/manual/html_node/dd-invocation.html#index-nocache
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dd if=zero iflag=nocache count=0 status=none
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sleep 0.1
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echo -n "READ: "
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dd if=zero of=/dev/null bs=131072 count=2000 2>&1 | tail -n 1
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rm zero
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sleep 0.1
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echo -n "UNTAR: "
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etime tar xzf /tmp/linux-3.0.tar.gz
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sleep 0.1
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echo -n "MD5: "
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etime md5sum --quiet -c "$MD5"
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sleep 0.1
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echo -n "LS: "
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etime ls -lR linux-3.0
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sleep 0.1
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echo -n "RM: "
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etime rm -Rf linux-3.0
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