Thanks for your tutorial.
Is this also available on Apache on Windows? How do I run the test? Where should I enter the command to run the test?

Thanks a lot for answering ;)

My results on my server:

Here is the PHP page it uses:

<?php
$algos = hash_algos();
foreach ($algos as $hash) {
echo $hash.": “.hash($hash, $_GET['s']).”";
}
?>

The command I used:
ab -g gnuplot.gp -n 1000 -c 10 -q http://192.168.1.70/test.php

Here is AB’s results:

Benchmarking 192.168.1.70 (be patient)…..done

Server Software: Apache/2.2.9
Server Hostname: 192.168.1.70
Server Port: 80

Document Path: /test.php
Document Length: 3109 bytes

Concurrency Level: 10
Time taken for tests: 2.788 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 3444000 bytes
HTML transferred: 3109000 bytes
Requests per second: 358.74 [#/sec] (mean)
Time per request: 27.875 [ms] (mean)
Time per request: 2.788 [ms] (mean, across all concurrent requests)
Transfer rate: 1206.55 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 2 13 4.1 12 41
Processing: 5 15 4.5 14 43
Waiting: 5 14 4.4 13 43
Total: 13 28 5.6 26 59

Percentage of the requests served within a certain time (ms)
50% 26
66% 28
75% 29
80% 30
90% 33
95% 38
98% 48
99% 52
100% 59 (longest request)

I changed the netstat line to this:
netstat -ntu | awk ‘{print $5}’ | sed ‘s/^::ffff://’ | cut -f1 -d: | sort | uniq -c | sort -nr

note the extra sed ‘s/^::ffff//’ which converts the lines with the funny bits in to the same as the others. This was the simplest and fastest way I could think off to strip it out so the rest of the code works as expected.
Hope this helps anyone who was getting a headache with this.

It has been used to benchmark Apache, IIS 5.1 and 7.0, Nginx, Cherokee, Rock and TrustLeap G-WAN, see:

http://trustleap.ch/

You just have then to import the CSV file into Open Office to generate Charts!


#include
#include
#include
#include
#include
#include
#include

#define LOOP 1000
#define ITER 1
// ----------------------------------------------------------------------------
int main(int argc, char *argv[])
{
int i, j, nbr, best;
char str[256], buff[4000];
FILE *f, *fo=fopen("test.txt", "wb");

for(i=0; i res.txt", i?i:1);

for(best=0, j=0; j<ITER; j++)
{
system(str);
Sleep (40);

// get the information we need from res.txt
if(!(f=fopen("res.txt", "rb")))
{
printf("Can't open file\n");
return 1;
}
memset(buff, 0, sizeof(buff)-1);
fread (buff, 1, sizeof(buff)-1, f);
fclose(f);

nbr=0;
if(*buff)
{
char *p=(char*)strstr(buff, "Requests per second:");
if(p) // "Requests per second: 14,863.00 [#/sec] (mean)"
{
while(*p==' ') p++;
nbr=atoi(p);
}
}
if(best<nbr) best=nbr;
}

// save data
printf("%u,%u\n", i, best);
fprintf(fo, "%u,%u\n", i, best);
}
fclose(fo);
return 0;
}
// ----------------------------------------------------------------------------


Thanks,
Gail

http://www.webload.org
jakarta.apache.org/jmeter/
http://www.pushtotest.com

My company (awebstorm.com) is working on providing this as a web service for release by the end of 2008.

Roger

If you want to know more about it just download Apache Source code and check /mod/source/mod_backtrace.c
/mod/source/mod_performance.c etc

This C files will tell you the more details.

Regards

Kapil Krishnan CPK