Lots of objects and ram, 32bit or 64bits?

[Mike Leong <leongmzlist@xxxxxxxxx>]

Hi,

Our accelerator pool is storing alot of objects and is continuing to 
grow.  We originally have 4GB and had to upgrade to 6GB to prevent 
swapping.  I think it'll be a matter of time before we have to 
upgrade the RAM again.

At the moment, we're running debian 64, but w/ 32bit 
squid.  According to top, the squid process has a resident size of 3.4G

Should I upgrade to 64bit squid?  From the archive, squid 64bit uses 
more RAM for the same amount of objects, so in a sense, upgrading the 
RAM won't give more storage capacity.

Will squid 32bit hit a memory limit, and thus limit the number of 
objects it can track?  If so, what is the memory limit?

thx,
mike