Re: /dev/yapoll : Re: [PATCH] /dev/epoll update ...

[Davide Libenzi]

On 21-Sep-2001 Christopher K. St. John wrote:
> Davide Libenzi wrote:
>> 
>> By reporting the initial state of the connection will
>> make /dev/epoll to be a hybrid interface
>>
> 
>  Yes, but you need that anyway (see below)
> 
> 
>> and looks pretty crappy to me.
>>
> 
>  It turns out that a hybrid interface is needed
> in any case to handle overload. When the queues
> start to fill up, you need to back off and start
> basically doing something like a plain-old-poll()
> instead. Ref the paper. Here's a link to a kernel
> list dicussion that covers similiar ground:

Now, my question born spontaneously :

"Did you read and understood the /dev/epoll code ?"

If yes, could you explain to me a case where /dev/epoll users have
to fall back doing "plain-old-poll()" ?

- Davide