rendered paste body#!/usr/bin/perl
my $debug="0";
my @measurements=(1,5,10,50,100,500,1000);
#my @measurements=(50);
my $disk="sdc";
############################################
foreach my $measurement ( @measurements )
{
print "###############\n";
print "$measurement\n";
print "###############\n";
############################################
if ($debug == "0"){
our %command=(
'Stats_io' => qq{iostat -x $disk -d "tps,r/s,w/s,svctm,Blk_read/s,Blk_wrtn/s,Blk_read,Blk_wrtn,kB_read/s,kB_wrtn/s,kB_read,kB_wrtn" |grep $disk},
'Stats_vmstats' => q{vmstat |awk '{ print $9, $10 }' },
'Read_Test' => qq{dd if=/dev/${disk}3 of=/dev/null bs=512 count=$measurement |grep -v records} ,
'Write_Test' => qq{dd if=/dev/zero of=/dev/${disk}3 bs=512k count=$measurement |grep -v records}
);
};
############################################
if ($debug == "1"){
for my $key (keys %command )
{
print("COMMAND:\t$command{$key}\n");
}
}
############################################
print " ---READ------\n";
open( READ, "$command{Read_Test} |grep -v records |") || die "cant run $command{Read_Test}:\t$?\n";
while( <READ> ) {
if ( /copied/ ){
print("\t$_\n");
}
}
#close(READ)||die;
############################################
print " ---WRIGHT----\n";
open( WRIGHT, "$command{Write_Test} |") || die "cant run $command{Write_Test}:\t$?\n";
while( <WRIGHT> ){
if ( /copied/ ){
print("\t$_\n");
}
}
#close(WRIGHT)||die;
############################################
}