On Mon, Nov 15, 2004 at 02:47:34PM -0800, Howard Chu wrote:
lists around. But on a heavily loaded server with thousands of active
sessions, the fact is that your list of interesting descriptors is not
static. Ultimately the server must iterate across all the thousands of
descriptors, because the majority of them are probably active, and the
server must insert and delete descriptors from the list continuously,
because client sessions tend to come and go continually.
All true, but the argument I think is that epoll has no inherent limits,
and is
optimal for many idle connections. With thousands of active connections I
think
a central select/poll/epoll/whatever is broken anyway. Only a SMP machine
with
a descriptor-passing architecture might help here.