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Date: Tue, 25 Apr 2000 17:37:12 -0700
From: Frankie Li <notme@lvdi.net>
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To: muthiah anand <smanand@hotmail.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: need about 5000 tcp connection....how to?
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Hi,
	I am just a newbie at FreeBSD and network programming.  I am
just wondering, shouldn't you use thread instead of fork when
anticipating such large amount of clients?  I have read from books
(I just began reading couple weeks ago...) that forks are relatively
inefficient, and that it uses quite a bit of memory because it
essentially copies the process into its own memory space.  Threads,
however, is relatively more efficient. (Well, I haven't gotten into
the details yet...)


please don't correct me if I am wrong.  :)   
(but please don't' flame me :)

Thank you in advance for you answers.

Frankie

muthiah anand wrote:
> 
> hi
> 
> 1.my application should be able to accept about 5000-7000 tcp
> connections
> the connections stay for hours, but i/o on these sockets are less
> 
> what would be the ideal kernel configurations to achieve this?
> like what are the param that i have to chg
> 
> i tried maxusers = 512 and 128 256.... doesnt solve my prob
> 
> i have to run a small process for each connection.
> 
> so i ran a loop with fork()
> but after 1800 process the m/c freezes
> 
> what could be the problem?
> 
> 2.does this has anything to do with hardware configuration?
> i have 2 test pcs one high end pc, compaq proliant pentiumIII 500mhz,
> 1gb, scsi harddrive....
> 
> another one, anormal pentiumII 300mhz 128mb, ide drive
> 
> the second one can fork many process than the compaq pc for the same
> kernel config
> 
> what could be the reason?
> 
> thanks in advance
> -anand
> 
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