qemu/tests/qemu-iotests/064
Max Reitz e35053b25a iotests: Lower 064's memory usage
Test 064 reads a lot of data at once which currently results in qemu-io
having to allocate up to about 1 GB of memory (958 MB, to be exact).
This patch lowers that amount to 128 MB by making the test read smaller
chunks.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-id: 1422025185-25229-1-git-send-email-mreitz@redhat.com
2015-01-23 12:41:32 -05:00

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#!/bin/bash
#
# Test VHDX read/write from a sample image created with Hyper-V
#
# Copyright (C) 2013 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=jcody@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt vhdx
_supported_proto generic
_supported_os Linux
_use_sample_img iotest-dynamic-1G.vhdx.bz2
echo
echo "=== Verify pattern 0xa5, 0 - 33MB ==="
$QEMU_IO -r -c "read -pP 0xa5 0 33M" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Verify pattern 0x96, 33M - 66M ==="
$QEMU_IO -r -c "read -pP 0x96 33M 33M" "$TEST_IMG" | _filter_qemu_io
echo
echo "=== Verify pattern 0x00, 66M - 1024M ==="
$QEMU_IO -r -c "read -pP 0x00 66M 62M" \
-c "read -pP 0x00 128M 128M" \
-c "read -pP 0x00 256M 128M" \
-c "read -pP 0x00 384M 128M" \
-c "read -pP 0x00 512M 128M" \
-c "read -pP 0x00 640M 128M" \
-c "read -pP 0x00 768M 128M" \
-c "read -pP 0x00 896M 128M" \
"$TEST_IMG" | _filter_qemu_io
echo
echo "=== Verify pattern write, 0xc3 99M-157M ==="
$QEMU_IO -c "write -pP 0xc3 99M 58M" "$TEST_IMG" | _filter_qemu_io
# first verify we didn't write where we should not have
$QEMU_IO -c "read -pP 0xa5 0 33M" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -pP 0x96 33M 33M" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -pP 0x00 66M 33M" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -pP 0x00 157M 99M" \
-c "read -pP 0x00 256M 128M" \
-c "read -pP 0x00 384M 128M" \
-c "read -pP 0x00 512M 128M" \
-c "read -pP 0x00 640M 128M" \
-c "read -pP 0x00 768M 128M" \
-c "read -pP 0x00 896M 128M" \
"$TEST_IMG" | _filter_qemu_io
# now verify what we should have actually written
$QEMU_IO -c "read -pP 0xc3 99M 58M" "$TEST_IMG" | _filter_qemu_io
# success, all done
echo "*** done"
rm -f $seq.full
status=0