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-rwxr-xr-xstress_tests/extractloop.bash24
1 files changed, 21 insertions, 3 deletions
diff --git a/stress_tests/extractloop.bash b/stress_tests/extractloop.bash
index a5d0539..cb67707 100755
--- a/stress_tests/extractloop.bash
+++ b/stress_tests/extractloop.bash
@@ -1,7 +1,19 @@
#!/bin/bash
+#
+# Mount a gocryptfs filesystem somewhere on /tmp, then run two parallel
+# infinite loops inside that do the following:
+# 1) Extract linux-3.0.tar.gz
+# 2) Verify the md5sums
+# 3) Delete, go to (1)
+#
+# This test is good at discovering inode-related memory leaks because it creates
+# huge numbers of files.
set -eu
+cd "$(dirname "$0")"
+MD5="$PWD/extractloop.md5sums"
+
# Setup
cd /tmp
wget -nv --show-progress -c https://www.kernel.org/pub/linux/kernel/v3.0/linux-3.0.tar.gz
@@ -18,17 +30,23 @@ cd $DIR2
trap "cd /; fusermount -u -z $DIR2; rm -rf $DIR1 $DIR2" EXIT
function loop {
- # Note: $$ returns the PID of the *parent* shell
+ # Note: In a subshell, $$ returns the PID of the *parent* shell,
+ # we need our own, which is why we have to use $BASHPID.
mkdir $BASHPID
cd $BASHPID
+ echo "[pid $BASHPID] Starting loop"
+
N=1
while true
do
- echo "[pid $BASHPID] $N: $(date +%H:%M:%S)"
+ t1=$(date +%s)
tar xf /tmp/linux-3.0.tar.gz
- diff -ur linux-3.0 /tmp/linux-3.0
+ md5sum --status -c $MD5
rm -Rf linux-3.0
+ t2=$(date +%s)
+ delta=$((t2-t1))
+ echo "[pid $BASHPID] Iteration $N done, $delta seconds"
let N=$N+1
done
}