Question on GCJ/Boehm Memory Utilization

Sun Feb 19 19:36:00 GMT 2006

Saturday, February 18, 2006, 10:30:19 PM, you wrote:
CAV> Hello!
CAV> The character arrays created by GCJ/Boehm for storing the 
CAV> java.lang.String tokens that result from XML processing are where I 
CAV> believe there is a problem. These are short strings, typically around
CAV> 10 or so characters in length. GCJ/Boehm seems to be allocating 
CAV> 2048-byte heap blocks, and in many cases - even 12932-byte heap blocks,
CAV> and then putting only one or two of the tokens resulting from XML 
CAV> parsing into them. Just a few characters. In some cases, 2 of these 
CAV> short tokens share a 2048-byte or 12932-byte block, but very often they
CAV> don't.
You might try playing with the HBLKSIZE define in gc_priv.h.
I recall trying 512 (instead of 2048) and finding total ram use to go
down, but having more blocks overall. (On an app with lots of small strings)