Re: [Fwd: Re: possible bug x86 2.4.2 SMP in IP receive stack]

[Bob Felderman <feldy@xxxxxxxx>]

=> On Thu, Mar 08, 2001 at 07:56:43PM +0100, Bob Felderman wrote:
=> > I think the culprit here is the packet receive errors from 
=> > UDP. These are socket overflows I think. I'm trying to 
=> > track it down. When I used DaveM's zero-copy patches on
=> > a linux-2.4.0 kernel, most, if not all, of these
=> > packet receive errors went away. 
=> 
=> So does it help when you increase the socket receive buffer of the receiver ?
=> 
=> (via /proc/sys/net/core/rmem_{default,max}) 

I don't see a big change here either. Once I'm up to 512KB-1meg
or so, I don't see much improvement.