if one reuqest is hang, others are slowed down

Hi,
this is my first email in this list !

I have a question:

a fastcgi script may be accessed by many user, if one user's request is
slowed down,
other user's request will also be slowdown ?

# script:  (if path_info =~ wait, it will slowdown)


#!/usr/bin/perl -w
use FCGI;
my $req = FCGI::Request();
while ($req->Accept() >= 0) {
        my $path = $ENV{'PATH_INFO'};
        $|=1;
    print "Content-Type:text/html\n\n";
    print "Your are ", $count, " guest<br>\n";
        $count++;

        print "<br>\n";

        my $k;
        my $v;
        while (($k, $v) = each %ENV) {
                if ($path=~/wait/) {
                        warn "$path sleeping";
                        sleep 1;
                }
                print "$k\t=>$v<br>\n";
        }
}

#### apache2 config

FastCgiIpcDir /tmp
AddHandler fastcgi-script .fcgi .fpl
FastCGIConfig -autoUpdate -idle-timeout 120 -killInterval 3600
-maxClassProcesses 6 -maxProcesses 15  # I do not know this yet

Alias   /fcgi   "/var/www/fcgi/"
<Directory "/var/www/fcgi/">
        AllowOverride None
        Options ExecCGI
        Allow from all

</Directory>

### test result:

[root@TD18 ~]#ab -n 30 -c 10
http://192.168.1.200/fcgi/slow2.fcgi/wait>>/dev/null &
[1] 19033
[root@TD18 ~]#ab -n 30 -c 10 http://192.168.1.200/fcgi/slow2.fcgi/no
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.1.200 (be patient).....done


Server Software:        Apache/2.2.3
Server Hostname:        192.168.1.200
Server Port:            80

Document Path:          /fcgi/slow2.fcgi/no
Document Length:        922 bytes

Concurrency Level:      10
Time taken for tests:   66.891503 seconds
Complete requests:      30
Failed requests:        0
Write errors:           0
Total transferred:      32040 bytes
HTML transferred:       27660 bytes
Requests per second:    0.45 [#/sec] (mean)         ##############   it is
very slow !!!!
Time per request:       22297.167 [ms] (mean)
Time per request:       2229.717 [ms] (mean, across all concurrent requests)
Transfer rate:          0.46 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2   2.2      3       7
Processing: 16594 22293 4098.3  25084   25203
Waiting:    16591 22291 4098.2  25083   25201
Total:      16597 22296 4098.4  25086   25206

Percentage of the requests served within a certain time (ms)
  50%  25086
  66%  25087
  75%  25204
  80%  25205
  90%  25206
  95%  25206
  98%  25206
  99%  25206
 100%  25206 (longest request)
[root@TD18 ~]#
[root@TD18 ~]#
[root@TD18 ~]#jobs
[1]+  Running                 ab -n 30 -c 10
http://192.168.1.200/fcgi/slow2.fcgi/wait >>/dev/null &
[root@TD18 ~]#



any suggestion ? thanks!

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