From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:51495) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gz2wT-0003fR-Og for qemu-devel@nongnu.org; Wed, 27 Feb 2019 12:24:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gz2wO-0003eo-6g for qemu-devel@nongnu.org; Wed, 27 Feb 2019 12:24:25 -0500 From: Kevin Wolf Date: Wed, 27 Feb 2019 18:22:54 +0100 Message-Id: <20190227172256.30368-19-kwolf@redhat.com> In-Reply-To: <20190227172256.30368-1-kwolf@redhat.com> References: <20190227172256.30368-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH 18/20] qemu-iotests: Preallocation with external data file List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, mreitz@redhat.com, eblake@redhat.com, qemu-devel@nongnu.org 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 --- tests/qemu-iotests/243 | 22 ++++++++++++++++++++++ tests/qemu-iotests/243.out | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/tests/qemu-iotests/243 b/tests/qemu-iotests/243 index 5ab1b7863d..0e807dabf6 100755 --- a/tests/qemu-iotests/243 +++ b/tests/qemu-iotests/243 @@ -29,6 +29,7 @@ status=3D1 # failure is the default! _cleanup() { _cleanup_test_img + rm -f $TEST_IMG.data } trap "_cleanup; exit \$status" 0 1 2 3 15 =20 @@ -57,6 +58,27 @@ for mode in off metadata falloc full; do =20 done =20 +for mode in off metadata falloc full; do + + echo + echo "=3D=3D=3D External data file: preallocation=3D$mode =3D=3D=3D" + echo + + IMGOPTS=3D"data_file=3D$TEST_IMG.data,preallocation=3D$mode" _make_t= est_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 filesys= tems + 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=3DIMGFMT size=3D67108864 preallocati= on=3Dfull File size: 67436544 Disk usage: high + +=3D=3D=3D External data file: preallocation=3Doff =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D67108864 data_file=3D= TEST_DIR/t.IMGFMT.data preallocation=3Doff +qcow2 file size: 196616 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: low + +=3D=3D=3D External data file: preallocation=3Dmetadata =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D67108864 data_file=3D= TEST_DIR/t.IMGFMT.data preallocation=3Dmetadata +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: low + +=3D=3D=3D External data file: preallocation=3Dfalloc =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D67108864 data_file=3D= TEST_DIR/t.IMGFMT.data preallocation=3Dfalloc +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: high + +=3D=3D=3D External data file: preallocation=3Dfull =3D=3D=3D + +Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D67108864 data_file=3D= TEST_DIR/t.IMGFMT.data preallocation=3Dfull +qcow2 file size: 327680 +data file size: 67108864 +qcow2 disk usage: low +data disk usage: high *** done --=20 2.20.1