Really cool features in the Google patch

Justin and Ben talk today at 4:25pm on features for SMP performance and high availability.

Ben is an expert on InnoDB internals related to SMP performance. He designed and implemented the faster rw-mutex changes that are now in the 1.0.3 InnoDB plugin and MySQL 5.4 and have made MySQL much faster on SMP servers. More recently he changed InnoDB to significantly reduce mutex contention on the transaction log and buffer pool mutexes. This makes InnoDB 20% faster on sysbench and other read-write workloads. Right now he is finishing the backport of the pool-of-threads code from MySQL 6 to 5.0 and making it scale on SMP.

Justin is a replication expert. He added support for global transaction IDs to automate slave failover, made replication slaves crash-safe, added checksums for binlog events and fixed many bugs in replication.

They both have done very interesting work. And we don't just build these features, we also run them in production soon after adding them.