Comment 0 for bug 518336

User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20090824 Firefox/3.5.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20090914 Shredder/3.0b4pre

Since updating to the build above Thunderbird was using in excess of 1.5GB of virtual memory, and seemed to be constantly displaying "Indexing .. of .. messages in .." in the status bar.

Eventually I figured out this was because of the new indexer; disabling it brought memory usage back to the normal +-300MB virtual, 200MB physical.

Since this new feature can make Thunderbird rather unusable, I don't think it shoudl be blindly enabled when a user upgrades.

Reproducible: Always

Steps to Reproduce:
1. Run older TB build
2. Upgrade to current Shredder
3. Start TB
Actual Results:
TB memory usage goes up and reaches over 1.5GB virtual after +-20 minutes. Indexer is keeping the disk busy during this time.

Expected Results:
Max memory used should be limited, or indexer should not be enabled by default on upgrade.

My profile has 2 medium-size IMAP accounts ( 1.5GB and 1GB ), a small IMAP account (6MB), and a news & blogs account.