Couple of months ago there was a post by FreshBooks on getting great performance improvements by lowering table_cache variable. So I decided to investigate what is really happening here. The “common sense” approach to tuning caches is to get them as large as you can if you have enough resources (such as memory). With MySQL [...]
Chicago & Atlanta -last two training locations of the year
A final update on training for this year – registration for InnoDB/XtraDB training in Chicago (8th December) and Atlanta (10th December) are now open. While in Atlanta I’ll be giving a talk at the Atlanta PHP User Group on Optimizing MySQL Performance (details to be posted to their website shortly). If you’re in Chicago and [...]
Interviews for InfiniDB and TokuDB are next
I forwarded on a list of questions about PBXT to Paul McCullagh today. While Paul’s busy answering them, I’d like to announce that Robert Dempsey (InfiniDB storage engine) and Bradley C. Kuszmaul (TokuDB storage engine) have also accepted an interview. If you have any questions about either storage engine, please post them here by Friday [...]
“Shard early, shard often”
I wrote a post a while back that said why you don’t want to shard. In that post that I tried to explain that hardware advances such as 128G of RAM being so cheap is changing the point at which you need to shard, and that the (often omitted) operational issues created by sharding can [...]

