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With glibc 2.1 and JIT turned OFF, IBM JDK is very
fast and very stable, more so than Blackdown in my
findings.
JIT has deterministic garbage collection issues with
the IBM JDK on Linux. Note that the same IBM JDK for
Windows NT does not have these issues with JIT turned
on.
I'll bet that if you run IBM's JDK with green threads
and JIT turned off it will still run faster _and_ more
stable than the Blackdown JDK, but that's just a
guess.
For myself, I won't be considering Java 2 on Linux
until JDK 1.3 is ported and out of beta, but that's
just me.
> >
> > You are running JDK 1.1.7 from Blackdown, java_ns
> is
> > the green threaded version of the jvm under this
> port.
> > You should, instead, use IBM's 1.1.8 JDK for Linux
> and
> > run it using native threads. Your servlets will
> run up
> > to 400% faster and the IBM JDK is a lot more
> stable, too.
> >
> Hi Nick,
>
> you're right in that the IBM JDK blasts away
> blackdown's 1.1.7
> but we've experienced a lot of problems with the
> linux threads
> this jvm is using. They don't seem to be cleaned up
> properly
> and the jvm slowly dies as a result.
> We're running redhat 6.1 on an pentium 550 with
> apache 1.3.9
> and jserv1.0
> After we'd started using the green threaded version
> of blackdown's 1.1.7
> our problems disappeared and after switching over to
> blackdown's 1.2.1
> it even was speedy enough.. The system has been up
> and running for a
> respectable 5 days now without trouble..
>
> cheers,
> lein
=====
# Nick Bauman
# Technical Programmer
# http://webhelp.com
# real people, real answers, real time
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