b84762e245
The 035 parallel aio write test relies on knowledge of qcow2 metadata layout to stress parallel L2 table accesses. This only works for qcow2 unless we add additional calculations for qed or other formats. Mark this test as qcow2-only. Note that the test is strictly speaking non-deterministic although the output produced is reliable with qcow2. This is because the aio_write command returns before the aio write request has completed. Completions can occur at any time afterwards and cause a message to be printed. Therefore the exact output of this test is not deterministic but we seem to get away with it for qcow2 (maybe due to coroutine and main loop scheduling). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
73 lines
1.6 KiB
Bash
Executable file
73 lines
1.6 KiB
Bash
Executable file
#!/bin/bash
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#
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# Let a few AIO requests run in parallel and have them access different L2
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# tables so that the cache has a chance to get used up.
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#
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# Copyright (C) 2012 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=kwolf@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt qcow2
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_supported_proto generic
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_supported_os Linux
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size=6G
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CLUSTER_SIZE=512
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echo
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echo "creating image"
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_make_test_img $size
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function generate_requests() {
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for i in $(seq 0 63); do
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echo "aio_write ${i}M 512"
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echo "aio_write ${i}M 512"
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echo "aio_write ${i}M 512"
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done
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}
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generate_requests | $QEMU_IO $TEST_IMG | _filter_qemu_io |\
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sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g'
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echo
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echo "checking image for errors"
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_check_test_img
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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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status=0
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