Barry,
I wouldn't get religious when it comes to JVM config for such a move.
As the only thing you seem to have changed in the CF 7 JVM args are memory
sizes, I would for a start just go with those settings on CF 8 and see how you
go. Monitor the machine and it's memory, stats, CPU, logs, GC etc and make
changes as necessary. You have simulated the migration in the dev and staging
environments, right?
Cheers
Kai
> Hi,
>
> We are migrating from Coldfusion7 to Coldfusion8 and I wondered if
> anyone was up to date on the config parameters for the JVM for
> Coldfusion 8 (JRE 1.6.X) and has some recommendations.
>
> What by the way (if somebody knows) is
> Dsun.io.useCanonCaches or
> DJINTEGRA_NATIVE_MODE or
> DJINTEGRA_PREFETCH_ENUMS
> and are any of those three required for CF8?
>
> The following is the config line we use for our Coldfusion7
> environment (seperated for easy reading):
> java.args=-server
> -XX:+UseParallelGC
> -Xmx1450m
> -Xms1450m
> -XX:PermSize=110m
> -XX:MaxPermSize=110m
> -XX:NewSize=256m
> -XX:MaxNewSize=256m
> -Dsun.io.useCanonCaches=false
> -DJINTEGRA_NATIVE_MODE
> -DJINTEGRA_PREFETCH_ENUMS -
> Dcoldfusion.rootDir={application.home}/
>
> The following is what we have for our Coldfusion8 environment:
> java.args=
> -Xmx1450m (heap size to be tested, not implemented yet)
> -Xms1450m
> -XX:PermSize=110m
> -XX:MaxPermSize=110m
> -XX:NewSize=256m
> -XX:MaxNewSize=256m
> -Dsun.io.useCanonCaches=false
> -XX:MaxPermSize=192m
> -XX:+UseParallelGC
> -Dcoldfusion.rootDir={application.home}/
_________________________________________________
Kai Koenig - Ventego Creative Ltd
ph: +64 4 476 6781 - mob: +64 21 928 365 / +61 450 132 117
web: http://www.ventego-creative.co.nz
blog: http://www.bloginblack.de
twitter: http://www.twitter.com/agentK
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