tools/regression/tmpfs/t_sizes

   1 #!/bin/sh
   2 #
   3 # $NetBSD: t_sizes,v 1.6 2007/03/11 10:09:17 pooka Exp $
   4 #
   5 # Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
   6 # All rights reserved.
   7 #
   8 # This code is derived from software contributed to The NetBSD Foundation
   9 # by Julio M. Merino Vidal, developed as part of Google's Summer of Code
  10 # 2005 program.
  11 #
  12 # Redistribution and use in source and binary forms, with or without
  13 # modification, are permitted provided that the following conditions
  14 # are met:
  15 # 1. Redistributions of source code must retain the above copyright
  16 #    notice, this list of conditions and the following disclaimer.
  17 # 2. Redistributions in binary form must reproduce the above copyright
  18 #    notice, this list of conditions and the following disclaimer in the
  19 #    documentation and/or other materials provided with the distribution.
  20 # 3. All advertising materials mentioning features or use of this software
  21 #    must display the following acknowledgement:
  22 #        This product includes software developed by the NetBSD
  23 #        Foundation, Inc. and its contributors.
  24 # 4. Neither the name of The NetBSD Foundation nor the names of its
  25 #    contributors may be used to endorse or promote products derived
  26 #    from this software without specific prior written permission.
  27 #
  28 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  29 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  30 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  31 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  32 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 # POSSIBILITY OF SUCH DAMAGE.
  39 #
  40 # $FreeBSD$
  41 #
  42
  43 #
  44 # Verifies that the file system controls memory usage correctly.
  45 #
  46
  47 test_run() {
  48         test_mount -o  size=10485760
  49
  50         pagesize=$(sysctl hw.pagesize | cut -d ' ' -f 2)
  51
  52         test_name "Get status of clean filesystem"
  53         eval $(${Src_Dir}/h_tools statvfs . | sed -e 's|^f_|cf_|')
  54         cf_bused=$((${cf_blocks} - ${cf_bfree}))
  55
  56         test_name "Creation of small file"
  57         echo a >a || die
  58         test_name "statvfs(2) reports correct block accounting"
  59         eval $(${Src_Dir}/h_tools statvfs .)
  60         f_bused=$((${f_blocks} - ${f_bfree}))
  61         [ ${f_bused} -gt 1 ] || die
  62         rm a || die
  63
  64         test_name "Creation of big file"
  65         dd if=/dev/zero of=a bs=1m count=5 >/dev/null 2>&1 || die
  66         test_name "statvfs(2) reports correct block accounting"
  67         eval $(${Src_Dir}/h_tools statvfs .)
  68         f_bused=$((${f_blocks} - ${f_bfree}))
  69         [ ${f_bused} -ne ${cf_bused} ] || die
  70         [ ${f_bused} -gt $((5 * 1024 * 1024 / ${pagesize})) ] || die
  71         of_bused=${f_bused}
  72         rm a || die
  73         eval $(${Src_Dir}/h_tools statvfs .)
  74         f_bused=$((${f_blocks} - ${f_bfree}))
  75         [ ${f_bused} -lt ${of_bused} ] || die
  76
  77         test_name "Creation of big file that overflows the filesystem"
  78         of_bused=${f_bused}
  79         dd if=/dev/zero of=a bs=1m count=15 >/dev/null 2>&1 && die
  80         rm a || die
  81         test_name "statvfs(2) reports correct block accounting"
  82         eval $(${Src_Dir}/h_tools statvfs .)
  83         f_bused=$((${f_blocks} - ${f_bfree}))
  84         [ ${f_bused} -ge ${of_bused} -a ${f_bused} -le $((${of_bused} + 1)) ] \
  85             || die
  86
  87         test_name "Write to middle of a file does not change size"
  88         dd if=/dev/zero of=a bs=1024 count=10 >/dev/null 2>&1 || die
  89         sync
  90         dd if=/dev/zero of=a bs=1024 conv=notrunc seek=1 count=1        \
  91              >/dev/null 2>&1 || die
  92         sync
  93         eval $(stat -s a)
  94         [ ${st_size} -eq 10240 ] || die
  95
  96         test_unmount
  97 }
  98
  99 . ${SUBRDIR}/h_funcs.subr