On 8/29/06, Mark Thomas <[EMAIL PROTECTED]> wrote:
Andrés González wrote:
> Hi.
>
> I'm searching a way to understand every detail of the manager/status
> page. I've tried the doc, the source code... but can't answer
> something like:
>
> - why is jvm-free-memory != jvm-max-memory - jvm-total-memory
Because the initial memory java requests (-Xms option) isn't the same
as the maximum memory it is able to request (-Xmx option).
Mmmm... i've been "investigating".
I think what you say iw the reason for
jvm-max-memory != jvm-total-memory
The reason of "free memory" being != "max-memory - total-memory" i
think is that "free memory" does not mean "size of aditional memory
that can be allocated by the jvm" BUT "size of the memory *already*
alocated but not in use at the moment". That number, for example, gets
high each time the gc is run.
So you could define the following ratios:
%free memory in the JVM = free/total * 100
%memory allocated vs maximum memory allocatable = total/max * 100
Am i right?
--
-=-=-=-=-=-=-=-=-=-=-=-=-
Andrés González.
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