Gentoo Archives: gentoo-java

From: "William L. Thomson Jr." <wltjr@g.o>
To: gentoo-java <gentoo-java@l.g.o>
Subject: Re: [gentoo-java] tomcat 6 on amd64
Date: Sun, 27 May 2007 15:04:45
Message-Id: 1180278242.20655.14.camel@wlt.obsidian-studios.com
In Reply to: Re: [gentoo-java] tomcat 6 on amd64 by robert burrell donkin
1 On Sun, 2007-05-27 at 15:02 +0100, robert burrell donkin wrote:
2 >
3 > > > So, this particular problem isn't occurring w/ sun-jdk-1.6.0 on amd64?
4 > >
5 > > Correct, all Sun jdks other than 1.5 are fine. Both 1.6.0.x and 1.7
6 > > which is openjdk are fine.
7 > >
8 > > > Maybe I'd be better off just upgrading to 6 rather than fighting w/ 5 on
9 > > > 64bit.
10 > >
11 > > I would recommend doing so.
12 >
13 > +1
14 >
15 > there are a number of other server apps which i can't run on that JVM on AMD64
16
17 Interesting. Further testing revealed that sun-jdk-1.5.0.11's behavior
18 is consistent on all amd64 procs. Despite earlier statements about it
19 not failing on Turions. Compiling Tomcat 6.0.x with 1.5.0.11 on amd64
20 fails always, less memory is increased or compiler is switched to ecj
21 from javac.
22
23 Beyond that 1.5 and 1.6 seem to have the same default allocations,
24 except for initial starting min value. 1.5.0.11 stars with like 4mb, and
25 1.6 starts with ~7mb. Their max is the same default. ~64mb on x86, and
26 ~84-96mb on amd64.
27
28 But there still might be other things in the jvm that are undesirable
29 performance and etc wise in 1.5.0.x. Which they address in 1.6 or etc.
30
31 --
32 William L. Thomson Jr.
33 Gentoo/Java

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