92 lines
2.1 KiB
Bash
Executable File
92 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# Mount a gocryptfs filesystem somewhere on /tmp, then run two parallel
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# infinite loops inside that do the following:
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# 1) Extract linux-3.0.tar.gz
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# 2) Verify the md5sums
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# 3) Delete, go to (1)
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#
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# This test is good at discovering inode-related memory leaks because it creates
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# huge numbers of files.
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set -eu
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cd "$(dirname "$0")"
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MD5="$PWD/linux-3.0.md5sums"
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# Setup dirs
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cd /tmp
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wget -nv --show-progress -c https://www.kernel.org/pub/linux/kernel/v3.0/linux-3.0.tar.gz
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CRYPT=$(mktemp -d /tmp/extractloop.XXX)
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CSV=$CRYPT.csv
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MNT=$CRYPT.mnt
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mkdir $MNT
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# Mount
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FSPID=0
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if [ $# -eq 1 ] && [ "$1" == "-encfs" ]; then
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echo "Testing EncFS"
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encfs --extpass="echo test" --standard $CRYPT $MNT > /dev/null
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elif [ $# -eq 1 ] && [ "$1" == "-loopback" ]; then
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echo "Testing go-fuse loopback"
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rm -f /tmp/loopback*.memprof
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loopback -l -memprofile=/tmp/loopback $MNT $CRYPT &
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FSPID=$(jobs -p)
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else
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echo "Testing gocryptfs"
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gocryptfs -q -init -extpass="echo test" -scryptn=10 $CRYPT
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gocryptfs -q -extpass="echo test" -nosyslog -f $CRYPT $MNT &
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FSPID=$(jobs -p)
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#gocryptfs -q -extpass="echo test" -nosyslog -memprofile /tmp/extractloop-mem $CRYPT $MNT
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fi
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echo "Test dir: $CRYPT"
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# Sleep to make sure the FS is already mounted on MNT
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sleep 1
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cd $MNT
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ln -sTf $CSV /tmp/extractloop.csv
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# Cleanup trap
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# Note: gocryptfs may have already umounted itself because bash relays SIGINT
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# Just ignore fusermount errors.
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trap "cd /; fusermount -u -z $MNT; rm -rf $CRYPT $MNT" EXIT
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function loop {
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# Note: In a subshell, $$ returns the PID of the parent shell.
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# We need our own PID, which is why we use $BASHPID.
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mkdir $BASHPID
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cd $BASHPID
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echo "[pid $BASHPID] Starting loop"
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N=1
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RSS=0
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while true
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do
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t1=$SECONDS
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tar xf /tmp/linux-3.0.tar.gz
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md5sum --status -c $MD5
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rm -Rf linux-3.0
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t2=$SECONDS
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delta=$((t2-t1))
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if [ $FSPID -gt 0 ]; then
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RSS=$(grep VmRSS /proc/$FSPID/status | tr -s ' ' | cut -f2 -d ' ')
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echo "$N,$SECONDS,$RSS" >> $CSV
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fi
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echo "[pid $BASHPID] Iteration $N done, $delta seconds, RSS $RSS kiB"
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let N=$N+1
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done
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}
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function memprof {
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while true; do
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kill -USR1 $FSPID
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sleep 60
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done
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}
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loop &
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loop &
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#memprof &
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wait
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