Re: [Engine-devel] Fixed -Xmx could kill your JVM
----- Original Message -----
From: "Juan Hernandez" <jhernand(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: engine-devel(a)ovirt.org
Sent: Wednesday, September 12, 2012 3:57:33 PM
Subject: Re: [Engine-devel] Fixed -Xmx could kill your JVM
<snip>
Worst case we can change the defaults for ENGINE_HEAP_MIN and
ENGINE_HEAP_MAX to get that behavior, for example:
ENGINE_HEAP_MIN=128m
ENGINE_HEAP_MAX=1g
I am open to do that change, specially if you show me hard data
proving
that it is better for performance ;-) .
We are talking about virtual memory, allocation of the heap is done as reserved, so there
is no real impact on the system if memory is unused. When a reserved page is actually used
it is committed.
Unless there is a system with small page file, there is no real reason to use lower values
in HEAP_MIN.
Alon.