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Crank up dbench, now that everything seems to be quite stable under load.
We now do 1, 10, 50, and 100 client runs each night.
Make sure the path back to the scripts directory is available in the
environment for scripts to get at if need be.

#!/bin/sh
# 
# Wrapper for automating benchmarking runs.
# Usage:   bench passes user group [script]
# 
# ..where passes is the number of times to run each script; uid/gid
# gives credentials to use when running the script; and script is a
# simple wrapper around each actual benchmark tool (eg. see run.*),
# if this is ommited, all run.* scripts are used in turn.
# 
# Each run.foo script should report a comma-separated-value list of
# benchmark results on stdout or fail with a non-zero exit code;
# unless the -i option is supplied in which case it should instead
# report a comma-separated-value list of column headers (for report
# generation purposes).
# 
#-----------------------------------------------------------------------
# Copyright (c) 2002 Silicon Graphics, Inc.  All Rights Reserved.
# 
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
# 
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# 
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
# 
# You should have received a copy of the GNU General Public License along
# with this program; if not, write the Free Software Foundation, Inc., 59
# Temple Place - Suite 330, Boston MA 02111-1307, USA.
# 
# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
# Mountain View, CA  94043, or:
# 
# http://www.sgi.com 
# 
# For further information regarding this notice, see: 
# 
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#-----------------------------------------------------------------------
#
# creator
owner=nathans@sgi.com

tmp=/tmp/$$
here=`pwd`; export here
status=1	# failure is the default!

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

_cleanup()
{
    echo "        *** umount"
    umount $SCRATCH_DEV >/dev/null 2>&1
}

OUT="bench.out"
LOG="bench.log"
FULL="bench.full"

_log()
{
    echo "$*" 1>&2
    echo "$*" >>$LOG
    echo "$*" >>$FULL
    sync
}

_logp()
{
    tee -a $FULL
}

_fail()
{
    _log "$*"
    status=1
    exit 1
}

_run_benchmark()
{
    pass=1
    uid=`id -u $user`
    gid=`id -g $group`
    
    while [ $pass -le $passes -o $passes -lt 0 ]
    do
        _log "        *** clean scratch device [$bench starting, pass $pass]"
        mkfs_xfs -f $SCRATCH_DEV 2>&1 |  _fix_malloc >>$FULL \
                            || _fail "            !!! mkfs SCRATCH_DEV failed"

        _log "        *** mounting scratch device"
        mount -t xfs $SCRATCH_DEV $SCRATCH_MNT \
                            || _fail "            !!! failed to mount"
        
        _log "        *** mkdir"
        mkdir $SCRATCH_MNT/bench \
                            || _fail "            !!! couldn't mkdir benchdir"
        chown -R $user.$group $SCRATCH_MNT/bench \
                            || _fail "            !!! couldn't chown benchdir"

        cd $SCRATCH_MNT/bench
        seq=`perl -e 'printf "results.%s.%03d\n", '$bench', '$pass`
        rm -f $seq $tmp.out

        _log "        *** bench [$seq]"
        $here/src/runas -u $uid -g $gid $here/run.$bench > $tmp.out
	[ $? -eq 0 ]        || _fail "            !!! $bench pass $pass failed"

        cd $here
        _fix_malloc < $tmp.out > $seq

        _log "        *** unmounting scratch device"
        umount $SCRATCH_DEV 2>&1 | _logp \
                            || _fail "            !!! failed to umount"

        _log "        *** post-umount filesystem check"
        _check_fs $SCRATCH_DEV
        
        let "pass = pass + 1"
    done
}

_merge_results()
{
    echo Results for $bench benchmark >>$OUT
    echo results.$bench.* | sort -nu | xargs cat >>$OUT
    echo >>$OUT
}

# real QA test starts here

if [ $# -lt 3 ]; then
    echo Usage:  bench passes user group [script]
    exit 1
fi

passes=$1
user=$2
group=$3

benches=`echo run.* | sed -e 's/run\.//g'`
[ $# -gt 3 ] && benches=$4
[ -z "$benches" -o "$benches" = "*" ] && _fail "no benchmark scripts found"

trap "_cleanup; exit \$status" 0 1 2 3 15

_require_scratch

rm -f bench.*
for bench in $benches
do 
    echo "" >$FULL
    echo "" >$LOG
    _log "*** benchmark started [passes=$passes, benchmark=$bench]"
    _log "*** (`date`)"
    _log "        *** unmounting scratch device"
    umount $SCRATCH_DEV 2>&1 | _fix_malloc >>$FULL

    _run_benchmark | _fix_malloc
    _merge_results

    _log "*** done $bench"
done
status=0