I removed the socket sizes in an attempt to reproduce your results
Rick and i managed to do so, but only when i launch netperf by typing
in the follow cmd in to the bash shell.
/home/cheka/netperf-2.4.4/src/netperf -T 0,0 -l 10 -t TCP_STREAM -c
100 -C 100 -f M -P 0 -- -m 523
As soon as i try to launch netperf (with the same line as i do manual)
from within a script of any form (be it php or bash) the difference
between 523 and 524 appears again.
The php script i'm using is pasted below (it's the same as the bash
script that comes with netperf to provide the tcp_stream)
<?php
$START=522;
$END=524;
$MULT=1;
$ADD=1;
$MAXPROC=1; // This is the maximum number of CPU's you have so
we can assign the client to different CPUs to show the same problem
between 523 and 524 does not occur unless it's on CPU 0 and CPU 0
$DURATION = 10; // Length of test
$LOC_CPU = "-c 100"; // Report the local CPU info
$REM_CPU = "-C 100"; // Report the remove CPU info
$NETSERVER = "netserver"; //path to netserver
$NETPERF = "netperf"; // path to netperf
for($i=0; $i<=$MAXPROC; $i++) {
echo "0,$i\n";
$MESSAGE = $START;
while($MESSAGE <= $END) {
passthru('killall netserver > /dev/null'); //
tried it with and without the following restarts of netserver
passthru('sleep 5');
passthru("$NETSERVER");
passthru('sleep 5');
echo "$NETPERF -T 0,$i -l $DURATION -t
TCP_STREAM $LOC_CPU $REM_CPU -f M -P 0 -- -m $MESSAGE\n"; // let's see
what we try to exec
passthru("$NETPERF -T 0,$i -l $DURATION -t
TCP_STREAM $LOC_CPU $REM_CPU -f M -P 0 -- -m $MESSAGE"); // exec it -
this will also print to screen
passthru('sleep 5'); // sleep
$MESSAGE += $ADD;
$MESSAGE *= $MULT;
}
}
?>
On 19/10/2007, Bill Fink <billfink@mindspring.com> wrote:
