MariaDB 5.3.4 benchmarks

MariaDB 5.3 has reached the release candidate milestone, and the 5.3 version promises a lot of new features and optimization (i.e in optimizer http://kb.askmonty.org/en/what-is-mariadb-53#query-optimizer). No surprise I wanted to check how all improvements affect general performance.

So I why don’t we run old good sysbench benchmark.

For the benchmark I took:

• HP ProLiant DL380 G6 box
• sysbench multitables oltp rw workload, 16 tables, 500mil rows each, total datasize about 30GB
• working threads from 1 to 256
• Versions: MariaDB 5.3.4, MySQL 5.5.20
• Data is stored on RAID10 HDD partition
• Like in all my recent benchmarks, I make throughput measurements each 10 sec, so we can see the stability of the throughout

The raw results, configuration and scripts are available on our Benchmarks Launchpad

The graphical results:

Throughput (more is better)

Image may be NSFW.
Clik here to view.

Threads MariaDB 5.3.4 MySQL 5.5.20  Ratio
1        252           271          0.9298893
2        412           588          0.7006803
4        801          1097          0.7301732
8       1709          2205          0.7750567
16      3197          4076          0.7843474
32      3303          4166          0.7928469
64      3336          4150          0.8038554
128     3800          4170          0.9112710
256     3710          4131          0.8980876

I was surprised to see that MariaDB shows 20-30% worse throughput.
It seems many changes resulted to performance hit in general. I wonder whether MariaDB team runs performance regression benchmarks, and if they do, why do we see such performance decline.

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