cd .local/share/zeitgeist/
sqlite3 activity.sqlite vacuum
I'll be trying that on the worst of my three Ubuntu machines. On this one, I tried emptying ~/local/share/zeitgeist and I'm now down to a couple of seconds for the dash to populate the first time after login. It's not perfect but it's an improvement.
According to this link (http:// ubuntuforums. org/showthread. php?t=2106949), you could achieve the same by installing sqlite3 and performing:
cd .local/ share/zeitgeist /
sqlite3 activity.sqlite vacuum
I'll be trying that on the worst of my three Ubuntu machines. On this one, I tried emptying ~/local/ share/zeitgeist and I'm now down to a couple of seconds for the dash to populate the first time after login. It's not perfect but it's an improvement.