"-client" option

[Zhu Han]

On Tue, Jan 11, 2011 at 6:57 PM, Andrew Haley <aph at redhat.com> wrote:

>
>  640MB is just the pre-allocated address space size, half of them are
>> anonymous mmap region.  RSS is just around 48MB.  I want to control the
>> total size of  address space because the JVM process spawns several
>> sub-process to execute some scripts provided by OS occasionally. I know
>> this
>> is not portable, but seems like there is no better way to open a URL in
>> standalone browser from a java application.
>>
>
> But these regions are mapped as MAP_NORESERVE, so it shouldn't matter.
>
>
>  This may be failed because of lack of swap space to backup address space.
>>
>
> OK, so now I understand what the real problem is.
>
> I'm assuming Linux.
>
> I don't understand why this is happening.  I wonder if you have some
> odd setting.
>
> What is /proc/sys/vm/overcommit_memory?  /proc/sys/vm/overcommit_ratio?
>
> /proc/meminfo ?
>

Because it will be deployed as a desktop application. So I have no control
over settings of /proc/sys/vm/overcommit_memory. And some distributions set
it as 0, at least it is 0 on my Ubuntu 10.04.

The failure can be observed only on resource limited environment.

I have written a small script and communicate with JVM through local
loopback TCP connection. This is a possible workaround. But, it is quite
ugly...

Do you have any good suggestions? Thank you.


>
> Andrew.
>
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