[gentoo-dev] Performance Apache/PHP / PHP-Problem

[Benjamin Podszun <ben@galactic-tales.de>]

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Hi there.

I posted my Apache problems before and I think I found the root cause
now. I have a nntp2web-gateway as forum and the nntp-server regularly
reaches a high load because of some other applications.
The server still accepts connections, but feeds more or less a "wait a
moment" to my webserver..

First problem for me: Gentoo's mod_php isn't build with
--enable-memory-limit. I needed that to solve some of my performance
problems and I think it should be used by default, since one can set the
limit in the php.ini.

Second problem: I seem to miss something here.. My php-scripts won't
stop receiving data in spite of my self-made memory-limit-aware mod_php.

I get funny thinks like this with apachectl fullstatus:

 Srv PID Acc M CPU SS Req Conn Child Slot Client VHost Request
   0-0 24732 0/9710/9710 W 255.39 48435 0 0.0 12.94 12.94 217.82.173.211
   galactic-tales.4players.de GET /nntp2web/thread.php?group=rpg
HTTP/1.1
   1-0 28522 0/747/10693 W 19.49 47228 0 0.0 0.61 13.47 217.227.120.194
   galactic-tales.4players.de GET
/nntp2web/thread.php?group=rpg&it=54641
   HTTP/1.1
   2-0 28387 0/75/10032 W 1.00 48434 0 0.0 0.02 10.99 80.137.211.194
   galactic-tales.4players.de GET
/nntp2web/thread.php?group=rpg&it=48832
   HTTP/1.1
   3-0 24735 0/9494/9494 W 253.37 48442 0 0.0 12.14 12.14 80.145.106.208
   galactic-tales.4players.de GET /nntp2web/thread.php?group=rpg&it=282
   HTTP/1.1

The columns are:

   Srv  Child Server number - generation
    PID  OS process ID
    Acc  Number of accesses this connection / this child / this slot
     M   Mode of operation
    CPU  CPU usage, number of seconds
    SS   Seconds since beginning of most recent request
    Req  Milliseconds required to process most recent request
   Conn  Kilobytes transferred this connection
   Child Megabytes transferred this child
   Slot  Total megabytes transferred this slot

So.. Every Connection transferred ~50MB? *ugh*
I better don't count all the lines with similar problems..

Anyone able to provide me with a quick hint? ;-)

Ben

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