Re: SableVM 1.1.7 *prerelease* available - please test!

>>>>> "Grzegorz" == Grzegorz B Prokopski <[email protected]> writes:

  Grzegorz> On Mon, 2004-10-11 at 11:29, Laurent Martelli wrote:
  >> It looks like jetty's serlvets are still hanging. I'll try to
  >> investigate, but it's not easy without debugging support.

  Grzegorz> We have seen Jetty having problems with class loading that
  Grzegorz> resulted in deadlocks.  Could you please try the
  Grzegorz> following.  Fetch Jetty's sources, edit file
  Grzegorz> src/org/mortbay/http/ContextLoader.java and remove
  Grzegorz> "synchronized" word from both loadClass() method, then
  Grzegorz> compile this single file and replace it in jetty's jar (or
  Grzegorz> alternatively you can of course rebuild whole jetty, but
  Grzegorz> it is possible to only rebuild this single file).

In fact it was the wait/notify bug which is triggered by some code of
mine that caused the hang.

  >> Also I've found that performances are horrible. An application of
  >> mine takes more than 10 times to start than with sun's 1.4
  >> JVM. Prvious release had only of factor of 2. Did I miss an
  >> optimization option at build time ?

  Grzegorz> If you built with the defaults, it Should Not(tm) be the
  Grzegorz> case, but...  Can you please remove
  Grzegorz> ${prefix}/share/sablevm-classpath/*.jar files and
  Grzegorz> reconfigure/rebuild sablevm-classpath with this option:
  Grzegorz> --disable-compressed-classes

  Grzegorz> This should result in class files being put directly
  Grzegorz> on-disk, just like it was in 1.1.6 and previous versions.
  Grzegorz> Note that I have not (personally) tested this option, so
  Grzegorz> in the worst case you might need to set
  Grzegorz> sablevm.boot.class.path property to point to where the
  Grzegorz> classes are installed.  Or you could simply unpack the two
  Grzegorz> .jar files you have now to a single directory and set
  Grzegorz> sablevm.boot.class.path to point to it - and then retry
  Grzegorz> running your app.

I tried unpacking the jars and removing them, but it's still slow as a
lame snail:

	2004-10-12 11:48:22,182 INFO perf:  application started in 34812ms

Whereas with 1.1.6:

	2004-10-12 09:48:48,250 INFO perf:  application started in 6279ms

I even tried to unjar almost all the jars used by my app with no
success. I'm still in the 35 seconds range  :-(

Thanks for your help.

-- 
Laurent Martelli
[email protected]                                Java Aspect Components
http://www.aopsys.com/                          http://jac.objectweb.org