[Ace-users] [tao-users] scalability/thread pool performance (500+ clients)

Douglas C. Schmidt schmidt at dre.vanderbilt.edu
Sat Mar 1 08:13:52 CST 2008

Hi Andrew,

>Yes, i saw it. And have tried most of them (MT server with thread
>pool, ST server, ST server with select_st) and various factory options
>- nope. It doesn't scale anywhere. 150-200 connections - and no more
>:( No difference between ST and MT models - moreover, ST doesn't load
>the CPU at all (0-1%), while MT with thread pool brings load up to
>50-60%. With no dispatch performance gain.
>About thread-per-connection... I think, thread-per-connection option
>is not a case - 500+ threads is a very big price for scalability.

It's worth a shot to see how well it performs.  

Take care,

Dr. Douglas C. Schmidt                       Professor and Associate Chair
Electrical Engineering and Computer Science  TEL: (615) 343-8197
Vanderbilt University                        WEB: www.dre.vanderbilt.edu/~schmidt
Nashville, TN 37203                          NET: d.schmidt at vanderbilt.edu

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