At 16:07 24.06.2002 +0200, Wolfgang Hoschek wrote: >FYI, here are somewhat related papers of performance-oriented colleagues: > >Dynamic Monitoring of High-Performance Distributed Applications, D. >Gunter, B. Tierney, K. Jackson, J. Lee, M. Stoufer, Proceedings of the >11th IEEE Symposium on High Performance Distributed Computing, HPDC-11, >July 2002, > http://www-didc.lbl.gov/papers/HPDC02-HP-monitoring.pdf
Cool article. Interestingly, modifying the way log4j serializes LoggingEvents, the throughput of SocketAppender can be increased fourfold. Assuming I understood the figures, it may be that log4j 1.3 will have roughly the same throughput as NetLogger (in Java). We'll see... >Monitoring Data Archives for Grid Environments, J. Lee, D. Gunter, M. >Stoufer, B. Tierney, Proceeding of IEEE Supercomputing 2002 Conference, >Nov. 2002 > >http://www-didc.lbl.gov/papers/Monitoring-archive-SC02-extended-abstract.pdf > >Wolfgang. > >At 15:49 24/6/2002 +0200, Wolfgang Hoschek wrote: > >>>In early 2002, a user (I can't find the name since Bugzilla is down) >>>filed a bug report claiming that on a heavily used server machine >>>adding buffered IO to FileAppender gave a perceptible boost to logging >>>performance. As a response we added buffered IO to FileAppender. >> >>Perhaps you are referring to my message which was about the size of >>buffering. >>In some environments varying buffersize can help (try 64 bytes vs. 8KB or >>64KB). >>There is also a bugzilla ref to someone elses experience with async >>logging... >> >>http://marc.theaimsgroup.com/?l=log4j-dev&m=99771529009797&w=2 Yes, that's the thread. >>Wolfgang. >----------------------------------------------------------------------- >Wolfgang Hoschek | e-mail: [EMAIL PROTECTED] >CERN IT Division | phone: +41 (22) 767 8089 >European Organization | fax: +41 (22) 767 7155 >for Nuclear Research | home: http://cern.ch/hoschek >----------------------------------------------------------------------- -- Ceki -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
