Today we announce release 1.0.2-3 of our XtraDB storage engine.
Here is a list of enhancements:
Move to MySQL 5.1.31
Scalability fix â€” ability to use several rollback segments
Increasing the number of rseg may be helpful for CPU scale of write-intentional workloads. See benchmark results.
Scalability fix â€” replaced page_hash mutex to page_hash read-write lock. […]