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tests/qemu-iotests: add case to write compressed data of multiple clusters
Add the case to the iotest #214 that checks possibility of writing compressed data of more than one cluster size. The test case involves the compress filter driver showing a sample usage of that. Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 1575288906-551879-4-git-send-email-andrey.shinkevich@virtuozzo.com Signed-off-by: Max Reitz <mreitz@redhat.com>
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@ -90,6 +90,49 @@ _check_test_img -r all
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$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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$QEMU_IO -c "read -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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echo
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echo "=== Write compressed data of multiple clusters ==="
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echo
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cluster_size=0x10000
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_make_test_img 2M -o cluster_size=$cluster_size
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echo "Write uncompressed data:"
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let data_size="8 * $cluster_size"
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$QEMU_IO -c "write -P 0xaa 0 $data_size" "$TEST_IMG" \
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2>&1 | _filter_qemu_io | _filter_testdir
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sizeA=$($QEMU_IMG info --output=json "$TEST_IMG" |
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sed -n '/"actual-size":/ s/[^0-9]//gp')
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_make_test_img 2M -o cluster_size=$cluster_size
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echo "Write compressed data:"
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let data_size="3 * $cluster_size + $cluster_size / 2"
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# Set compress on. That will align the written data
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# by the cluster size and will write them compressed.
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QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
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$QEMU_IO -c "write -P 0xbb 0 $data_size" --image-opts \
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"driver=compress,file.driver=$IMGFMT,file.file.driver=file,file.file.filename=$TEST_IMG" \
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2>&1 | _filter_qemu_io | _filter_testdir
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let offset="4 * $cluster_size + $cluster_size / 4"
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QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
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$QEMU_IO -c "write -P 0xcc $offset $data_size" "json:{\
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'driver': 'compress',
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'file': {'driver': '$IMGFMT',
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'file': {'driver': 'file',
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'filename': '$TEST_IMG'}}}" | \
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_filter_qemu_io | _filter_testdir
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sizeB=$($QEMU_IMG info --output=json "$TEST_IMG" |
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sed -n '/"actual-size":/ s/[^0-9]//gp')
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if [ $sizeA -le $sizeB ]
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then
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echo "Compression ERROR"
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fi
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$QEMU_IMG check --output=json "$TEST_IMG" |
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sed -n 's/,$//; /"compressed-clusters":/ s/^ *//p'
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# success, all done
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echo '*** done'
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rm -f $seq.full
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@ -32,4 +32,18 @@ read 4194304/4194304 bytes at offset 0
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4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 4194304/4194304 bytes at offset 4194304
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4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Write compressed data of multiple clusters ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2097152
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Write uncompressed data:
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wrote 524288/524288 bytes at offset 0
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512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2097152
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Write compressed data:
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wrote 229376/229376 bytes at offset 0
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224 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 229376/229376 bytes at offset 278528
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224 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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"compressed-clusters": 8
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*** done
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