30 hours -- 1.0g -- 26.7% 36 hours -- 1.2g -- 30.3% 54 hours -- 1.6g -- 41.5%
Looks like a pretty linear progression of ~33MB/hour being leaked. This is on a system that previously had 512MB of total RAM. Now with 4GB it appears it'll be able to stay up about 5 days total. There were no configuration changes other than upgrading the packages.