On 19 January 2005 20:33, Glynn Clements wrote:

Simon Marlow wrote:

...

We do use a thread pool. But you still need as many OS threads as there are blocked read() calls, unless you have a single thread doing select() as I described.

How does the select() help? AFAIK, select() on a regular file or block device will always indicate that it is readable, even if a subsequent read() would have to read the data from disk.

Again we've lost track of the discussion a bit. Yes you're right, but I was answering a different question. Cheers, Simon