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Date: Tue, 10 Dec 2013 17:25:52 -0800
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: tytso@....edu, darrick.wong@...cle.com
Cc: linux-ext4@...r.kernel.org
Subject: [PATCH 68/74] tests: Add block_validity speed test
Extend the metadata checksum speed test to evaluate the performance
impact of the block_validity mount option.
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
tests/metadata-checksum-test.sh | 72 +++++++++++++++++++++++++++++++++++----
1 file changed, 65 insertions(+), 7 deletions(-)
diff --git a/tests/metadata-checksum-test.sh b/tests/metadata-checksum-test.sh
index 1c73e58..0703501 100755
--- a/tests/metadata-checksum-test.sh
+++ b/tests/metadata-checksum-test.sh
@@ -192,6 +192,15 @@ cat > "${MKE2FS_CONFIG}" << ENDL
inode_ratio = 16384
[fs_types]
+ ext4icsum_no_bv = {
+ features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize,64bit$MKFS_OPTS
+ default_mntopts = acl,user_xattr
+ inode_size = ${INODE_SZ}
+ blocksize = ${BLK_SZ}
+ options = mmp_update_interval=5 #${RESIZE_PARAM}
+ lazy_itable_init = 1
+ cluster_size = $((BLK_SZ * 2))
+ }
ext4icsum = {
features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize,64bit$MKFS_OPTS
inode_size = ${INODE_SZ}
@@ -3171,11 +3180,14 @@ if [ ! -r /tmp/tarfiles ]; then
fi
if [ ! -r /tmp/dirs -o ! -r /tmp/files -o ! -r /tmp/topdirs ]; then
rm -rf /tmp/dirs /tmp/files /tmp/topdirs
+ set +x
+ echo '+ create_fab_config'
for i in a1 a2 a3 a4 a5 a6 a7 a8 a9 aA aB aC aD aE aF; do
cat /tmp/tarfiles | grep ^d | awk "{printf(\"$i/%s\n\", \$6);}" >> /tmp/dirs
cat /tmp/tarfiles | grep -v ^d | awk "{printf(\"%s $i/%s\n\", \$3, \$6);}" >> /tmp/files
echo "$i" >> /tmp/topdirs
done
+ set -x
fi
if [ ! -x /tmp/fab ]; then
cat > /tmp/fab.c << ENDL
@@ -3188,19 +3200,28 @@ if [ ! -x /tmp/fab ]; then
#include <stdlib.h>
#include <errno.h>
+#define ZERO_BUF_SZ 65536
+char zeroes[ZERO_BUF_SZ];
+
int main(int argc, char *argv[])
{
FILE *fp;
int fd, ret;
- size_t size;
+ size_t size, off, retoff;
char *space;
char buf[1024];
+ int write_files = 0;
if (argc < 2) {
printf("Usage: %s file_containing_sz_name_pairs\n", argv[0]);
return 4;
}
+ if (getenv("FAB_WRITE_FILES")) {
+ write_files = 1;
+ memset(zeroes, 0, ZERO_BUF_SZ);
+ }
+
fp = fopen(argv[1], "r");
if (!fp) {
perror(argv[1]);
@@ -3223,12 +3244,23 @@ int main(int argc, char *argv[])
}
size = strtoul(buf, NULL, 0);
if (size) {
- ret = posix_fallocate(fd, 0, size);
- if (ret) {
- errno = ret;
- perror(space);
- close(fd);
- break;
+ if (write_files) {
+ for (off = 0; off < size; off += ZERO_BUF_SZ) {
+ retoff = pwrite(fd, zeroes, (size - off) % ZERO_BUF_SZ, off);
+ if (retoff != (size - off) % ZERO_BUF_SZ) {
+ perror(space);
+ close(fd);
+ break;
+ }
+ }
+ } else {
+ ret = posix_fallocate(fd, 0, size);
+ if (ret) {
+ errno = ret;
+ perror(space);
+ close(fd);
+ break;
+ }
}
}
close(fd);
@@ -3331,6 +3363,32 @@ umount $MNT
}
#####################
+function block_validity_speed_test {
+test "${SKIP_SPEED_TESTS}" -gt 0 && return
+msg "block_validity_speed_test"
+prep_speed_test
+
+msg "No block_validity"
+$VALGRIND ${E2FSPROGS}/misc/mke2fs -T ext4icsum_no_bv $MKFS_OPTS $MKFS_FEATURES -F "${DEV}"
+test -z "$NO_CSUM" && $VALGRIND ${E2FSPROGS}/misc/tune2fs -O metadata_csum $DEV
+${E2FSPROGS}/misc/dumpe2fs -h $DEV 2> /dev/null | egrep -q "^Filesystem state:[ ]*clean$" || ${fsck_cmd} -fDy $DEV || true
+${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4
+cd "${MNT}"
+/usr/bin/time bash -c "mkdir -p \$(cat /tmp/dirs); /tmp/fab /tmp/files; sync"
+/usr/bin/time bash -c "rm -rf \$(cat /tmp/topdirs); sync"
+cd -
+umount "${MNT}"
+
+msg "Yes block_validity"
+${mount_cmd} ${MOUNT_OPTS} "${DEV}" "${MNT}" -t ext4 -o block_validity
+cd "${MNT}"
+/usr/bin/time bash -c "mkdir -p \$(cat /tmp/dirs); /tmp/fab /tmp/files; sync"
+/usr/bin/time bash -c "rm -rf \$(cat /tmp/topdirs); sync"
+cd -
+umount "${MNT}"
+}
+
+#####################
# Allow restarting of a test run by giving the test name and a plus sign.
VERBS_LEN="${#VERBS}"
--
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