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Intel 520 SSD in MySQL sysbench oltp benchmark

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In my raw IO benchmark of Intel 520 SSD we saw that the drive does not provide uniform throughput and response time, but it is interesting how does it affect workload if it comes from MySQL.
I prepared benchmarks results for Sysbench OLTP workload with MySQL running on Intel 520.
You can download it there.

There I want to publish graphs to compare Intel 520 vs regular RAID10.


Response time:

So despite big variation in raw IO, it seems it does not affect MySQL workload significantly, and single Intel 520 SSD gives much better throughput and response time comparing with traditional SAS RAID, and what is interesting it also much cheaper.
What’s bad with Intel 520 is that this card does not have capacitor to protect write cache, so if you worry about data protection in case of power outage it is better to disable write cache on this card and use write cache from RAID controller (i.e. LSI-9260).

Benchmarks specification, hardware, scripts and raw results are available in the full report.

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Vadim Tkachenko

Vadim leads Percona's development group, which produces the Percona Server, Percona Server for MongoDB, Percona XtraDB Cluster and Percona XtraBackup. He is an expert in solid-state storage, and has helped many hardware and software providers succeed in the MySQL market.

Benchmarks, MySQL


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