Thread pooling in AIO?

[Alan Bateman]

David M. Lloyd wrote:
> I think a fixed pool is probably the wrong choice for async I/O - it 
> would make more sense to use a cached pool which can scale up on 
> demand, with a sensible timeout for non-core threads.
If the server is completely event driven then a fixed thread pool can 
work very well.

One word of warning is one needs to be careful to avoid idle 
timeout/keep alive on Windows due to the way that I/O works on that 
platform. I/O operations are tied in the kernel to the initiating 
thread; if a thread terminates (because it is idle) then outstanding I/O 
operations that it has initiated may be aborted.

-Alan.