Re: Slowdown on high-load machines with 3000 sockets

[Christian Schmid]

I already tried with 300 KB and even used a perl-hash as a horrible-slow buffer for a 
readahead-replacement. It still slowed down on the syswrite to the socket. Thats the strange thing.

Rik van Riel wrote:
> On Mon, 28 Feb 2005, Christian Schmid wrote:
>
>
> > No i am only using 4 tasks with Poll-API and non-blocking sockets. Every
> > socket gets a 1 MB read-ahead. This are 4000 MB Max on a 8 GB machine....
> > Shouldnt thrash.
>
>
> If nothing else on the system uses any memory, and there
> were no memory zones and no division into active and
> inactive memory.
>
> You may want to try a smaller readahead window and see if
> your system still has trouble with the load.
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