| RE: [ajdt-dev] AspectJ 1.6.4 released |
|
Nice going guys. The before and
after results say it all! On the weaving performance and memory
front, has any of the following been done: -
Using
tools from AMD and Intel to look at CPU level issues? -
Are any
optimised collection implementations used (e.g. trove has perf and memory
footprint issues), or have they been experimented with? -
Hand
compression of known memory hoggers? When I was looking at how big an index we
could build in memory within a normal 32-bit JRE for the Whirlwind fuzzy
matching engine, I found that implementing alternate compressed versions of the
attribute maps gave not only the memory savings I wanted, but a notable
speedup. It was memory I/O bound. Another question on the weaving
performance. If we weave one method of a large class (hopefully a rare
case), is the whole class always woven, or can the ClassLoader supply the JVM
with part implementations. If the JVM is a limitation, we ought to
chase John Rose at Sun, as he’s looking at where the JVM gets in the way,
with the MLVM project. Cheers,
From:
ajdt-dev-bounces@xxxxxxxxxxx [mailto:ajdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Andy Clement I'm very pleased to announce that AspectJ 1.6.4 is now available for download. The 1.6.4 readme details the major changes and can be found here: ********************************************************************** IMPORTANT NOTICE. Confidentiality: This e-mail and its attachments are intended for the above named only and may be confidential. If they have come to you in error you must take no action based on them, nor must you copy or show them to anyone; please reply to this e-mail and highlight the error. Security Warning: Please note that this e-mail has been created in the knowledge that Internet e-mail is not a 100% secure communications medium. We advise that you understand and observe this lack of security when e-mailing us. Viruses: Although we have taken steps to ensure that this e-mail and attachments are free from any virus, we advise that in keeping with good computing practice the recipient should ensure they are actually virus free. Monitoring and Scanning: Cambridge Cognition has monitoring and scanning systems in place in relation to emails sent and received to: monitor / record business communications; prevent and detect crime; investigate the use of the Company's internal and external email system; and provide evidence of compliance with business practices. Cambridge Cognition Limited Company Registration Number 4338746 Registered address: Tunbridge Court Tunbridge Lane Bottisham Cambridge CB25 9TU UK ********************************************************************** |