detect server VM in reg test?
David Holmes
david.holmes at oracle.com
Tue Oct 11 21:51:13 UTC 2011
Hi Max,
On 12/10/2011 5:15 AM, Weijun Wang wrote:
> I have a test consuming quite a lot of memory and seems to be only
> working on server vms. I've added
>
> String vm = System.getProperty("java.vm.name");
> if (!vm.equals("Java HotSpot(TM) Server VM")) {
> System.out.println("The test only runs on server VMs");
> return;
> }
>
> Is there a better way to detect it?
Searching for contains("Server") would be less error-prone as the above
will not work on 64-bit. But there is a better property to use:
sun.management.compiler
which will report eg "Hotspot Client Compiler". However, these days both
properties might report Tiered rather than Server. Also for -Xint
sun.management.compiler doesn't exist.
That all said this seems like the wrong solution to the problem. Amount
of memory used shouldn't be that dependent on client vs. server VM
David
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