I am at 135 users now during peak times and ran into this situation just today on Win2k and mySQL. all though I had it up to as high as 189 users concurrently and no dramatic problems like today ??? seemed to be a lot of posters. We have 1500 users and growing my db is about 70k posts and about 55mb in size.
single box dual xeon pII 450's 1 gig ram, raid 5 array. I was thinking about seperating DB from APP's any suggestions guys. Thanks.