Re: [infinispan-dev] JBoss Libra
IMO, measuring object size using java.lang.instrument is not a good
idea: first of all, it's probably very slow and the time to do so is
linear to the number of live objects. Second, this probably takes into
acount only objects in the cache, but not the cache structures used by
Infinispan, JGroups and so on...
The approach I've recommended before is to trigger an eviction policy
based on free/available memory. This can easily be fetched from the JVM
via JMX...
On 1/31/12 10:25 AM, Galder Zamarreño wrote:
Just saw this: https://github.com/wolfc/jboss-libra
We should investigate the possibility of adding this to Infinispan and provide memory
size based eviction, WDYT?
The performance impact would need to be measured too.
EhCache has apparenlty done something similar but from what I heard, it's full of
hacks to work on diff plattforms...
--
Bela Ban
Lead JGroups (http://www.jgroups.org)
JBoss / Red Hat