Thanks Jas. The parsed css cache is the one I was referring to. EhCache is the cache provider in this case, so that's probably why I was seeing EhCache references to the Caja objects in the Eclipse MAT.
I'll disable it and see what I can find. In the meantime, would 1700 of these RuleSets seem reasonable for a Shindig server? Or is there no way to tell? ~1700 just seems like a lot, but I'm in no way an expert on what those RuleSets are used for. :) Thanks, -Stanton From: ๏̯͡๏ Jasvir Nagra <jas...@google.com> To: dev@shindig.apache.org, Date: 10/19/2011 15:06 Subject: Re: Memory concerns: what is the "normal" amount of CssTree.RuleSet objects to see at runtime And he hangs out here. :) As you'd expect, CssTree.RuleSets (and all the other parse tree nodes) are retained as long as the root of the parse tree is retained. Nothing in the Caja parser retains a reference to the root of the parse tree after the parse. In Shindig, shindig/java/gadgets/src/main/java/org/apache/shindig/gadgets/parse/caja/CajaCssParser.java has a parsed css cache - is that the cache you're referring to? A quick check to test this would be to turn that off that cache and see if you still see a lot of CssTree.Rulesets retained. jas On Wed, Oct 19, 2011 at 11:48 AM, Ryan J Baxter <rjbax...@us.ibm.com> wrote: > You want to ask Jasvir, he is the Caja lead at Google :) > > -Ryan > > Email: rjbax...@us.ibm.com > Phone: 978-899-3041 > developerWorks Profile > > > > From: Stanton Sievers/Westford/IBM@Lotus > To: dev@shindig.apache.org, > Date: 10/19/2011 02:21 PM > Subject: Memory concerns: what is the "normal" amount of > CssTree.RuleSet objects to see at runtime > > > > Hi everyone, > > I'm seeing a lot of com.google.caja.parser.css.CssTree$RuleSet objects > when running Shindig. I'm seeing around 1700 of these RuleSet objects > being retained, which equates to between 9MB and 10MB. This constitutes > ~15% of the total heap size! These RuleSets appear to be in an ArrayList > that is referenced by com.google.caja.parser.ChildNodes (at least > according to Eclipse Memory Analyzer). > > Is this normal? Is it possible EhCache is hanging onto a bunch of these > objects? > > I want to get everyone's opinion here before I post something to the Caja > folks. > > Thanks, > -Stanton > > > > >
