diff -r 000000000000 -r 96e5fb8b040d kerneltest/f32test/smassstorage/scripts/usbperformance.pl --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/kerneltest/f32test/smassstorage/scripts/usbperformance.pl Thu Dec 17 09:24:54 2009 +0200 @@ -0,0 +1,181 @@ +#!/usr/bin/perl -w +# Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). +# All rights reserved. +# This component and the accompanying materials are made available +# under the terms of "Eclipse Public License v1.0"" +# which accompanies this distribution, and is available +# at the URL "http://www.eclipse.org/legal/epl-v10.html". +# +# Initial Contributors: +# Nokia Corporation - initial contribution. +# +# Contributors: +# +# Description: +# USBperformance - write file to / read file from +# a USB Mass Storage device, +# measure the time taken, +# and display the data rate achieved. +# +# + +use strict; +use File::Copy; +use Getopt::Long; +use Pod::Usage; + +pod2usage("$0: Specify at least a target drive.\n") if (@ARGV < 1); + +my $help = 0; +my $size = 400; +my $reading = 0; +my $local_file = "gobble.dat"; + +my %opts = ('help' => \$help, + 'size=s' => \$size, + 'read=s' => \$reading); + +GetOptions(%opts) || pod2usage(2); +pod2usage(-exitval => 1, -verbose => 2) if $help; + +$size = 1 if $size < 1; + +my $drive = $ARGV[@ARGV - 1]; +$drive =~ s/\\/\//g; +$drive .= "/" unless ($drive =~ m/\/$/); +print "Remote drive: " . $drive . "\n"; + +my $remote_file = "$drive$local_file"; + +# If set to nonzero $¦ forces a flush right away and after every write or print +# on the currently selected output channel. +$¦ = 1; + +if ($reading == 0) +{ + print "Writing a $size MB file to the remote directory.\n"; + print "Creating source file \"$local_file\"...\n"; + create_gobblefile(); + print "Writing target file \"$remote_file\"...\n"; + my $write_time = writefile(); + print "File write took $write_time seconds.\n"; + printf "That's about %.2f MB/s.\n", ($size / $write_time); +} +else +{ + print "Reading file from a remote directory.\n"; + -e $remote_file or die "Remote file \"$remote_file\" doesn't seem to exist"; + -z $remote_file and die "Remote file \"$remote_file\" seems to be empty"; + my $size_bytes = -s $remote_file; + $size = $size_bytes / 1024 / 1024; + print "Reading source file \"$remote_file\" ($size_bytes bytes = $size MB)...\n"; + my $read_time = readfile(); + print "File read took $read_time seconds.\n"; + printf "That's about %.2f MB/s.\n", ($size / $read_time); + unlink $local_file; +} + + +# --- subs + +sub writefile +{ + my $start = time(); + move($local_file, $remote_file); + return (time() - $start); +} + +sub readfile + { + my $start = time(); + move($remote_file, $local_file); + return (time() - $start); + } + +sub create_gobblefile +{ + open FILE, ">$local_file " or die $!; + my $realsize = ($size * 1024 * 1024) / 40; + my $i = 0; + while ($i++ < $realsize) + { + # Add 40 characters + print FILE '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcd' or die $!; + } + close FILE; +} + +###################################################################### + +__END__ + +=head1 NAME + +usbperformance.pl - Create a large file and write it to a Mass Storage device, or + read it back. + +=head1 SYNOPSIS + +Usage: usbperformance.pl [options] + +: The path to / drive letter of the USB Mass Storage device. + +=head1 OPTIONS + +=over 3 + +=item --help + +Displays this help. + +=item --size= + +The size of the file to be created to measure the speed connection. + +Size is expected in MB. Default value if no option given is 400 MB. + +=item --read=<0/1> + +0 to write +1 to read + +Default value if no option given is 0 (write). + +Ensure the card/device has been ejected and thus flushed before you do the +reading test after the writing case, otherwise the content will be cached by +the local OS and the time measured won't be realistic. + +'Write' will leave the transferred file on the remote disk, but 'Read' will +delete it (moving it to the local PC). So a practical test order is: + +'Write' test, then disconnect/re-connect USB drive, then 'Read' test. + +This sequence will start and finish with an empty USB disk. + +=back + +=head1 DESCRIPTION + +This is a simple utility to create a file on a mass storage unit and measure +the performance in MB / seconds of the USB connection. + +=head2 Test Case Specification + + TestCaseID: PBASE-PREQ709-0045-Performance + TestType: IT + TestCaseDesc: Test Mass Storage performance on different platforms + (Windows 2000/XP/ME, MacOS) (Manual test) + + TestActions: + +Build a ROM with usbmsapp.exe on it. Connect the board to the PC with an USB +cable. Execute usbmsapp.exe on the device to map the mass storage unit (MMC/SD +card) onto the PC. Execute this script on the PC, and make sure the card has +free space for the file that is going to be created. The default size is 400 +MB. + +=head1 COPYRIGHT + + Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. + +=cut