kazeburoのブックマーク - はてなブックマーク

how innodb lost its advantage

For years it was very easy to defend InnoDB’s advantage over competition – covering index reads were saving I/O operations and CPU everywhere, table space and I/O management allowed to focus on database and not on file systems or virtual memory behaviors, and for past few years InnoDB compression was the way to have highly efficient OLTP (or in our case – SGTP – Social Graph Transaction Processing

kazeburo 2015/05/14

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MySQL is bazillion times faster than MemSQL

I don’t like stupid benchmarks, as they waste my time. I don’t like stupid marketing, as it wastes my time too. Sometimes I succumb to those things, and now in return I want to waste your time a bit. So, this Mem SQL thing, written by some smart guys has been making rounds in press and technical community. Centerpiece of all the communication was: “Mem SQL, the database they have developed over the

kazeburo 2012/06/27

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on MySQL replication prefetching

For the impatient ones, or ones that prefer code to narrative, go here. This is long overdue anyway, and Yoshinori already beat me, hehe… Our database environment is quite busy – there’re millions of row changes a second, millions of I/O operations a second and impact of that can be felt at each shard. Especially, as we also have to replicate to other datacenters, single threaded replication on My