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From acoli...@apache.org
Subject Re: [Fwd: TALK:Wednesday 10-26-05 End-to-End Performance Optimization of Java Server]
Date Tue, 18 Oct 2005 23:21:50 GMT
I'm asking the wife for permission to make a day trip...

Geir Magnusson Jr. wrote:
> Hey, I can be there, it seems.  Who else?  We can get together for  
> lunch beforehand...
> geir
> On Oct 17, 2005, at 10:37 PM, Stefano Mazzocchi wrote:
>> for those in cambridge, ma or surroundings.
>> -- 
>> Stefano.
>> From: CSAIL Event Calendar <eventcalendar@csail.mit.edu>
>> Date: October 17, 2005 5:23:50 PM BDT
>> To: seminars@csail.mit.edu
>> Subject: TALK:Wednesday 10-26-05 End-to-End Performance  Optimization 
>> of Java Server
>> End-to-End Performance Optimization of Java Server Workloads
>> Speaker: Jong-Deok Choi
>> Speaker Affiliation: IBM T. J. Watson Research Center
>> Host: Martin Rinard
>> Host Affiliation: CSAIL
>> Date: 10-26-2005
>> Time: 2:00 PM - 3:00 PM
>> Refreshments: 1:45 PM
>> Location: 32-D463 Star
>> The size and complexity of large-scale commercial middleware  systems, 
>> such as J2EE, and their workloads makes it difficult to  understand 
>> and optimize the performance of such systems. A J2EE  middleware with 
>> its application may have tens of thousands of  methods, hundreds of 
>> concurrently executing threads, and runtime  stacks that are hundreds 
>> of methods deep. While acting like an  operating system for its 
>> applications and providing various runtime  services, J2EE runs on a 
>> Java Virtual Machine (JVM) as an  application mostly written in Java. 
>> The JVM itself provides its own  various runtime services, such as 
>> synchronization and garbage  collection, and in turn relies on the 
>> underlying operating system  for OS services such as threading and 
>> memory management. This  complicated interaction among the various 
>> layers of the software  (and hardware) stack is a major source of the 
>> challenge to  understanding and optimizing the performance of such 
>> large-scale  middleware systems and their applicat
>>  ions.
>> In this talk, I will first present a brief description of the whole- 
>> stack, end-to-end analysis and optimization system we have  developed 
>> at IBM T. J. Watson Research Center for Websphere  Application Server 
>> (WAS), which is IBM's implementation of the  J2EE. After that, I will 
>> present runtime data and their analysis  results from the various 
>> layers of the SW and HW stack running WAS  and its key benchmark 
>> programs, and compare them with those of  SPECjbb, a Java benchmark 
>> program widely used by Java performance  researchers. I will also 
>> present a few of the performance  bottlenecks we have found, and their 
>> optimization.
>> Bio:
>> Jong-Deok Choi is a Research Staff Member (RSM) and Manager of the  
>> High Performance Programming group at the IBM T. J. Watson Research  
>> Center in Yorktown Heights, New York. He is a project co-leader of  
>> the End-to-End Server Optimization project, a cross-organizational  
>> effort in IBM for improving the performance of commercial eServer  
>> applications on IBM's server platforms. Since joining Watson  Research 
>> in 1989, he has been involved in various research and  development 
>> projects - in the areas of program analysis,  optimization, and 
>> debugging - such as PTRAN, TPO, Jalapeno, DejaVu,  JikesRVM, and 
>> End-to-End Optimization. His research interests  include static and 
>> dynamic analysis and optimization of commercial  and scientific 
>> applications, middleware analysis and optimization,  high performance 
>> computer architecture, and debugging multithreaded  and distributed 
>> applications.
>> He received B.S. in Electronic Engineering from SNU, Korea in 1979,  
>> M.S. in Electrical Engineering from KAIST, Korea in 1981, and M.S.  
>> and Ph.D. both in Computer Sciences from Univ. of Wisconsin-Madison  
>> in 1985 and 1989, respectively.
>> Relevant URL(S):
>> For more information please contact: Mary McDavitt, 617-253-9620,  
>> mmcdavit@csail.mit.edu
>> _______________________________________________
>> Seminars mailing list
>> Seminars@lists.csail.mit.edu
>> https://lists.csail.mit.edu/mailman/listinfo/seminars

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