87 lines
2.7 KiB
Bash
Executable File
87 lines
2.7 KiB
Bash
Executable File
#!/bin/ksh -p
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or https://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2021 by Lawrence Livermore National Security, LLC.
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#
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. $STF_SUITE/include/libtest.shlib
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. $STF_SUITE/tests/functional/direct/dio.cfg
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. $STF_SUITE/tests/functional/direct/dio.kshlib
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#
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# DESCRIPTION:
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# Verify the number direct/buffered requests when growing a file
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#
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# STRATEGY:
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#
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verify_runnable "global"
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function cleanup
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{
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zfs set recordsize=$rs $TESTPOOL/$TESTFS
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log_must rm -f $tmp_file
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}
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log_assert "Verify the number direct/buffered requests when growing a file"
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log_onexit cleanup
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mntpnt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
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tmp_file=$mntpnt/tmp_file
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rs=$(get_prop recordsize $TESTPOOL/$TESTFS)
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log_must zfs set recordsize=128k $TESTPOOL/$TESTFS
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#
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# Verify the expected number of buffered and Direct I/O's when growing
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# the first block of a file up to the maximum recordsize.
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#
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for bs in "8192" "16384" "32768" "65536" "131072"; do
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# When O_DIRECT is set the first write to a new file, or when the
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# block size needs to be grown, it will be done as a buffered write.
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check_write $TESTPOOL $tmp_file $bs 1 0 "-D" 1 0
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# Overwriting the first block of an existing file with O_DIRECT will
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# be a buffered write if less than the block size.
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check_write $TESTPOOL $tmp_file 4096 1 0 "-D" 1 0
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check_write $TESTPOOL $tmp_file 4096 1 1 "-D" 1 0
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# Overwriting the first block of an existing file with O_DIRECT will
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# be a direct write as long as the block size matches.
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check_write $TESTPOOL $tmp_file $bs 1 0 "-D" 0 1
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# Evict any blocks which may be buffered before the read tests.
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evict_blocks $TESTPOOL $tmp_file $bs
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# Reading the first block of an existing file with O_DIRECT will
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# be a direct read for part or all of the block size.
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check_read $TESTPOOL $tmp_file $bs 1 0 "-d" 0 1
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check_read $TESTPOOL $tmp_file 4096 1 0 "-d" 0 1
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check_read $TESTPOOL $tmp_file 4096 1 1 "-d" 0 1
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done
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log_pass "Verify the number direct/buffered requests when growing a file"
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