Experimental Physics and
Industrial Control System

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024	Index	1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
<== Date ==>		<== Thread ==>

Subject:	Re: JCA problems and questions
From:	Matej Sekoranja <[email protected]>
To:	[email protected]
Date:	Tue, 23 Oct 2012 22:33:26 +0200

Hi,

Rok Sabjan notified me about this thread. Thanks to Lewis for replies.

The old send buffer algorithm was to initialize the send buffer size to max_array_bytes and

automatically resize on demand (there is one send buffer per TCP connection). Not something

one would dare to use on a server, however very convenient on the client side.

However, if a client has a lot of connections there is a lot of memory required when max_array_bytes is large (e.g. 100 connection * 10MB = 1GB!).

Current algorithm starts with an initial size of 1k that can be automatically resized up to max_array_bytes.

This also mimics C++ CA algorithm (that has also evolved over the years).

Cheers,

Matej

Replies:: RE: JCA problems and questions Mark Rivers; RE: JCA problems and questions Hu, Yong

Navigate by Date:: Prev: Trying to get NSLSII's version of CSS James F Ross; Next: RE: JCA problems and questions Mark Rivers; Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Navigate by Thread:: Prev: Re: JCA problems and questions Jack Smith; Next: RE: JCA problems and questions Mark Rivers; Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

ANJ, 18 Nov 2013