author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 07 Jan 2010 13:38:45 +0200 | |
changeset 33 | 0173bcd7697c |
parent 31 | 56f325a607ea |
child 90 | 947f0dc9f7a8 |
child 198 | 2bb754abd467 |
permissions | -rw-r--r-- |
0 | 1 |
#!/usr/bin/perl -w |
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# Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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# All rights reserved. |
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# This component and the accompanying materials are made available |
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0173bcd7697c
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
31
diff
changeset
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# under the terms of the License "Eclipse Public License v1.0" |
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# which accompanies this distribution, and is available |
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# at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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# |
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# Initial Contributors: |
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# Nokia Corporation - initial contribution. |
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# |
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# Contributors: |
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# |
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# Description: |
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# USBperformance_multifile - write 100 files to / read them from |
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# a USB Mass Storage device, |
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# measure the time taken, |
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# and display the data rate achieved. |
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# |
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# |
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use strict; |
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use File::Copy; |
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use Getopt::Long; |
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use Pod::Usage; |
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pod2usage("$0: Specify a target drive.\n") if (@ARGV < 1); |
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my $help = 0; |
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my $size = 4; # size of a single file in MB |
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my $files = 100; # total number of files |
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my $reading = 0; |
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my %opts = ('help' => \$help, |
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'read=s' => \$reading); |
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GetOptions(%opts) || pod2usage(2); |
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pod2usage(-exitval => 1, -verbose => 2) if $help; |
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my $drive = $ARGV[@ARGV - 1]; |
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$drive =~ s/\\/\//g; |
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$drive .= "/" unless ($drive =~ m/\/$/); |
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print "Remote drive: " . $drive . "\n"; |
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# If set to nonzero $¦ forces a flush right away and after every write or print |
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# on the currently selected output channel. |
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$¦ = 1; |
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if ($reading == 0) |
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{ |
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print "Writing $files $size-MB files to the remote directory.\n"; |
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print "Creating source files...\n"; |
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create_files(); |
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print "Writing target files...\n"; |
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my $write_time = write_files(); |
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print "File write took $write_time seconds.\n"; |
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printf "That's about %.2f MB/s.\n", ($size * $files / $write_time); |
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} |
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else |
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{ |
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print "Reading files back from remote directory.\n"; |
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print "Reading source files...\n"; |
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my $read_time = read_files(); |
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print "File read took $read_time seconds.\n"; |
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printf "That's about %.2f MB/s.\n", ($size * $files / $read_time); |
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delete_files(); |
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} |
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# --- subs |
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sub write_files |
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{ |
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my $start = time(); |
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for (my $i = 1; $i <= $files; $i++) |
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{ |
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my $filename = "usbfile" . $i . ".dat"; |
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print "Writig $filename\r"; |
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move($filename, "$drive" . $filename); |
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} |
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print "\n"; |
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return (time() - $start); |
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} |
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sub read_files |
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{ |
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my $start = time(); |
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for (my $i = 1; $i <= $files; $i++) |
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{ |
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my $filename = "usbfile" . $i . ".dat"; |
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print "Reading $filename\r"; |
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move("$drive" . $filename, $filename); |
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} |
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print "\n"; |
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return (time() - $start); |
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} |
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sub create_files |
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{ |
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for (my $i = 1; $i <= $files; $i++) |
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{ |
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my $filename = "usbfile" . $i . ".dat"; |
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print "Creating file $filename\r"; |
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open FILE, ">$filename " or die $!; |
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my $fills = ($size * 1024 * 1024) / 64; |
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my $j = 0; |
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while ($j++ < $fills) |
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{ |
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# Add 64 characters at a time |
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print FILE '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz?!' or die $!; |
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} |
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close FILE; |
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} |
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print "\n"; |
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} |
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sub delete_files |
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{ |
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for (my $i = 1; $i <= $files; $i++) |
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{ |
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my $filename = "usbfile" . $i . ".dat"; |
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unlink $filename; |
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} |
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} |
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###################################################################### |
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__END__ |
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=head1 NAME |
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usbperformance_multifile.pl - Create 100 files and write them to a Mass Storage device or |
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read them back. |
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=head1 SYNOPSIS |
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Usage: usbperformance_multifile.pl [options] <USB drive> |
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<USB drive>: The path to / drive letter of the USB Mass Storage device. |
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=head1 OPTIONS |
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=over 2 |
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=item --help |
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Displays this help. |
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=item --read=<0/1> |
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0 to write |
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1 to read |
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Default value if no option given is 0 (write). |
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Ensure the card/device has been ejected and thus flushed before you do the |
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reading test after the writing case, otherwise the content will be cached by |
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the local OS and the time measured won't be realistic. |
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'Write' will leave the transferred files on the remote disk, but 'Read' will |
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delete them (moving them to the local PC). So a practical test order is: |
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'Write' test, then disconnect/re-connect USB drive, then 'Read' test. |
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This sequence will start and finish with an empty USB disk. |
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=back |
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=head1 DESCRIPTION |
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This is a simple utility to create a file on a mass storage unit and measure |
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the performance in MB / seconds of the USB connection. |
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=head2 Test Case Specification |
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TestCaseID: PBASE-PREQ709-0045-Performance |
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TestType: IT |
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TestCaseDesc: Test Mass Storage performance on different platforms |
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(Windows 2000/XP/ME, MacOS) (Manual test) |
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TestActions: |
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Build a ROM with usbmsapp.exe on it. Connect the board to the PC with an USB |
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cable. Execute usbmsapp.exe on the device to map the mass storage unit (MMC/SD |
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card) onto the PC. Execute this script on the PC, and make sure the card has |
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free space for the file that is going to be created. The default size is 400 |
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MB. |
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=head1 COPYRIGHT |
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Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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=cut |