I thought id ask this here instead of superuser, as lotus notes is a bit more enterprisy.
I have a thinkpad t61 with ubuntu 9.04 installed and Lotus Notes 8.5. Normally the system performance is fine/great, running at about 10% cpu usage with Firefox and some terminals open, and lotus notes not doing anything.
As soon as i try to do anything in lotus notes (ie open the calendar or open an email) the CPU usage jumps up to like 60-70% utilisation, with 50% of that notes. it doesnt use a lot of ram either. Just sits there using heaps of CPU% which slows down everything else. after a couple of minutes, it works its way out of this and everything returns to normal, until I try to do something again. where it does it again.