VM warning: Performance bug

[Tom Rodriguez]

On Dec 15, 2011, at 12:02 PM, Kelly O'Hair wrote:

> 
> Anyone seen this message before:
> 
> OpenJDK 64-Bit Server VM warning: Performance bug: SystemDictionary lookup_count=22915 lookup_length=24212 average=1.056600 load=0.528246
> 
> Maybe from jdk7u2?

I think it's fairly benign.  It just means that the hashtable for the SystemDictionary isn't performing quite as well as we'd like.  It's a little hard to evaluate without knowing how many entries are in the table.  I would assume that it just has a lot of classes loaded.  It's a somewhat useless message but it's debug only so I guess I wouldn't worry about it.

tom

> 
> -kto
>