Hello

I have question to standard (not syncache) implementation:
each SYN connection is dropped from listen queue with
1/N probability where N=size of listen queue.

When i have N=1024, and full listen queue i have
removed each connection once per second ? or how ?
How often are such half open connections removed
from the listen queue?

Thanx

vertigo wrote:

> I have question to standard (not syncache) implementation:
> each SYN connection is dropped from listen queue with
> 1/N probability where N=size of listen queue.

> When i have N=1024, and full listen queue i have
> removed each connection once per second ? or how ?
> How often are such half open connections removed
> from the listen queue?

They are not removed on any schedule. So long as the half-opened
connection remains valid, there is no reason to remove it unless the OS
needs remove to hold a new half-opened connection.

Generally, the only time an OS would remove a connection from the queue
due to activity that has nothing to do with that connection would be if
the queue is full and the OS needs room for a new connection.

DS