diff options
author | Kevin Wolf <kwolf@redhat.com> | 2019-02-21 16:35:52 +0100 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2019-03-08 12:26:46 +0100 |
commit | c35896c5e85d783a7248ef5cb12a9a82dbb7d5d6 (patch) | |
tree | d795ff07f5fdc4dda7e79902d6725de6b1d7c2cc /tests/qemu-iotests | |
parent | 6c3944dc6219cefef6a968cf300d227fe3f92388 (diff) |
qemu-iotests: Preallocation with external data file
Test that preallocating metadata results in a somewhat larger qcow2
file, but preallocating data only affects the disk usage of the data
file and the qcow2 file stays small.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests/qemu-iotests')
-rwxr-xr-x | tests/qemu-iotests/243 | 22 | ||||
-rw-r--r-- | tests/qemu-iotests/243.out | 32 |
2 files changed, 54 insertions, 0 deletions
diff --git a/tests/qemu-iotests/243 b/tests/qemu-iotests/243 index 6a19919add..5838c6e89c 100755 --- a/tests/qemu-iotests/243 +++ b/tests/qemu-iotests/243 @@ -29,6 +29,7 @@ status=1 # failure is the default! _cleanup() { _cleanup_test_img + rm -f $TEST_IMG.data } trap "_cleanup; exit \$status" 0 1 2 3 15 @@ -57,6 +58,27 @@ for mode in off metadata falloc full; do done +for mode in off metadata falloc full; do + + echo + echo "=== External data file: preallocation=$mode ===" + echo + + IMGOPTS="data_file=$TEST_IMG.data,preallocation=$mode" _make_test_img 64M + + echo -n "qcow2 file size: " + du -b $TEST_IMG | cut -f1 + echo -n "data file size: " + du -b $TEST_IMG.data | cut -f1 + + # Can't use precise numbers here because they differ between filesystems + echo -n "qcow2 disk usage: " + [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" + echo -n "data disk usage: " + [ $(du -B1 $TEST_IMG.data | cut -f1) -lt 1048576 ] && echo "low" || echo "high" + +done + # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/243.out b/tests/qemu-iotests/243.out index e531753ad1..dcb33fac32 100644 --- a/tests/qemu-iotests/243.out +++ b/tests/qemu-iotests/243.out @@ -23,4 +23,36 @@ Disk usage: high Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 preallocation=full File size: 67436544 Disk usage: high + +=== External data file: preallocation=off === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data preallocation=off +qcow2 file size: 196616 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: low + +=== External data file: preallocation=metadata === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data preallocation=metadata +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: low + +=== External data file: preallocation=falloc === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data preallocation=falloc +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: high + +=== External data file: preallocation=full === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 data_file=TEST_DIR/t.IMGFMT.data preallocation=full +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: high *** done |