[Haskell-cafe] Optimizing a high-traffic network architecture

[Simon Marlow]

On 16 December 2005 15:19, Lennart Augustsson wrote:

> John Meacham wrote:
>> On Thu, Dec 15, 2005 at 02:02:02PM -0000, Simon Marlow wrote:
>> 
>>> With 2k connections the overhead of select() is going to start to
>>> be a problem.  You would notice the system time going up. 
>>> -threaded may help with this, because it calls select() less often.
>> 
>> 
>> we should be using /dev/poll on systems that support it.
> 
> And kqueue for systems that support that.  Much, much more efficient
> than select.

Yeah, yeah.  We know.  We just haven't got around to doing anything
about it :-(  It's actually quite fiddly to hook this up to Handles -
see Einar's implementation in Network.Alt for instance.

Cheers,
	Simon (who wished he hadn't mentioned select() again)