Kazuho at Work: Q4M - 0.6 release and benchmarksToday I have uploaded Q4M (a Queue for MySQL) 0.6, which is basically a performance-improvement from previous releases. Instead of using pread's and a small user-level cache, Q4M (in default configuration) now uses mmap for reads with a reader/writer lock to improve concurrency. I also noticed that it would be possible to consume a queued row in one SQL statement. SELECT * FROM queue_table WHERE q
