3 # Copyright (c) 2003-2004 Silicon Graphics, Inc. All Rights Reserved.
5 # This program is free software; you can redistribute it and/or modify it
6 # under the terms of version 2 of the GNU General Public License as
7 # published by the Free Software Foundation.
9 # This program is distributed in the hope that it would be useful, but
10 # WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 # Further, this software is distributed without any warranty that it is
14 # free of the rightful claim of any third person regarding infringement
15 # or the like. Any license provided herein, whether implied or
16 # otherwise, applies only to this software file. Patent licenses, if
17 # any, provided herein do not apply to combinations of this program with
18 # other software, or any other product whatsoever.
20 # You should have received a copy of the GNU General Public License along
21 # with this program; if not, write the Free Software Foundation, Inc., 59
22 # Temple Place - Suite 330, Boston MA 02111-1307, USA.
24 # Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
25 # Mountain View, CA 94043, or:
29 # For further information regarding this notice, see:
31 # http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
36 Measure scaling of multiple cpus readin the same set of files.
38 Usage: $0 [-b <bytes>] [-f <files>] [-s] [-B] [-v] cpus ...
40 $0 -i [-b <bytes>] [-f <files>]
44 -s keep processes synchronized when reading files
45 -B use bcfree to free buffer cache pages before each run
63 while getopts "$OPTS" c ; do
77 shift `expr $OPTIND - 1`
79 if [ $INIT -gt 0 ] ; then
80 echo "Initializing $BYTES bytes, $FILES files"
81 ./scaleread $VERBOSE -i -b $BYTES -f $FILES
85 echo "Testing $BYTES bytes, $FILES files"
87 [ $BCFREE -eq 0 ] || bcfree -a
88 /usr/bin/time -f "$CPUS: %e wall, %S sys, %U user" ./scaleread \
89 $SYNC $STRIDED $VERBOSE -b $BYTES -f $FILES -c $CPUS