Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... )

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

On 04/20/2010 03:17 PM, Gaspar Chilingarov wrote:


I've opened 40,000 connections to/from my machine (over external interfaces)
on a slightly hacked .31 kernel.  This is 80,000 sockets total.  I bind
to local IP and port range, as well as SO_BINDTODEVICE.

I'm using a 64-bit system with 12GB of RAM, quad-core i7 3.3Ghz, etc.

It takes a lot of RAM to do this but you can probably use less RAM in user-space
than I am.  Be sure to set your socket buffer sizes small.

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge a ..., Gaspar Chilingarov, (Tue Apr 20, 3:17 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Ben Greear, (Tue Apr 20, 4:07 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 4:18 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 4:20 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 4:20 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 4:35 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 4:57 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Gaspar Chilingarov, (Tue Apr 20, 5:12 pm)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Evgeniy Polyakov, (Wed Apr 21, 11:27 am)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Evgeniy Polyakov, (Wed Apr 21, 11:58 am)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Michael S. Tsirkin, (Sun Apr 25, 7:26 am)
Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open hu ..., Michael S. Tsirkin, (Sun Apr 25, 9:35 am)