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About ExtendedParameters Options
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admin
Posted: Wednesday, October 01, 2008 7:19:05 PM
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ExtendedParameters is an optional parameter in Network.AcceptAsync, which may be used to adjust the listener according to your needs.

Code:
using (var listener = Network.AcceptAsync(new IPEndPoint(IPAddress.Any, 80), OnAccept,
                new ExtendedParameters {Backlog=1024}))
{
    ...
}


ExtendedParameters Properties

int BufferSize - Defines buffer size for read operations
int MinimumPreparedConnections - Defines minimum amount of connections in the pool at any time.
int MaximumTotalConnections - Allows to limit number of total connections in order to keep the system stable.
int DeltaConnections - Defines how many connections should be prepared when they are required.
int Backlog - Defines socket backlog parameter.
bool Optimized - Allows to optimize accept operation by waiting for the first data to arrive

If ExtendedParameters are not specified then default values are used:

int BufferSize = 8192 //8kbytes
int MinimumPreparedConnections = 1024
int MaximumTotalConnections = Int16.MaxValue
int DeltaConnections = 256
int Backlog = 1024
bool Optimized = false //don't wait for data, return immediately
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Morlack
Posted: Monday, March 16, 2009 5:08:25 AM
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Joined: 3/13/2009
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Location: Italy
Hi,
I've not understood how works DeltaConnections.

Using the default values, I've 1024 "ready" connections in the pool and if I receive 1024+1 connections, will be prepared 256 new connections "ready" in the pool?

Thank you for your great work!

Mario
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admin
Posted: Monday, March 16, 2009 5:31:53 AM
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Posts: 130
Points: 835
Hi Mario,

DeltaConnection will not be used in the next version.

In the current version it means that once you have less than MinimumPreparedConnections(=1024) 'ready' connections in the pool, 256 new connections will be created.

Ex. If you have 1023 'ready' connection then DeltaConnections (=256) new connections will be created. So you will have 1023+256 'ready' connections in the pool. That was done to handle thousands of simultaneous connections.
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Morlack
Posted: Monday, March 16, 2009 5:58:32 AM
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Thanks you very much for the fast reply :)

Mario
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AndreyTS
Posted: Thursday, September 10, 2009 12:50:32 AM
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Location: Moscow, Russia
admin wrote:

DeltaConnection will not be used in the next version.
...
That was done to handle thousands of simultaneous connections.


Could you explain, why did you decide to exclude this functionality?
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admin
Posted: Thursday, September 10, 2009 2:35:15 AM
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This parameter will be set by the system internally, selecting the most optimal setting.
According to the new schedule this change will not be included in the next release.
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richardtsy
Posted: Tuesday, September 15, 2009 11:14:02 AM
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Joined: 9/14/2009
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I would like to know why the memory leak
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