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Cost accounting for SSDs – it’s RAM, not disk

Most discussions I have seen about choosing SSDs vs. spinning disk arrays for databases tend to focus on SSDs as a replacement for disk. SSDs don’t replace disk; they replace the RAM you would be using to cache enough disk pages to make up for the terrible random IO performance of spinning disk arrays.… Read more




877,000 TPS with Erlang and VoltDB

-Edited 5/2/13 by Henning Diedrich to correct configuration typos.

Running on a suitable EC2 configuration (see details below), with our new VoltDB Erlang driver we achieved 877,519 transactions per second.

I am Henning Diedrich [1], CEO of Eonblast Corporation[2] a games company.… Read more




695k TPS with Node.js and VoltDB

Hi, I’m Henning Diedrich, co-founder and CEO of Eonblast, Inc. I’m a guest contributor to VoltDB’s blog.

In February I was contacted by VoltDB about conducting a benchmarking project.  The company had recently released an updated version of a Node.js client driver that had originally been authored by Jacob Wright, one of VoltDB’s community members. … Read more



Why is VoltDB So Fast?

First and foremost, VoltDB is focused on specific workloads. Most existing RDBMSs are designed to be general purpose, one-size-fits-all systems. Recently, there have been a lot of new databases introduced that achieve better performance by specializing in areas like analytics, graphs or streaming data.… Read more

SGI/VoltDB Benchmark- More Details

Yesterday’s press release documented a 30 node SGI Rackable Cluster running VoltDB achieving 3.4 million transactions per second (at 10ms latency) running the “Voter” application.

Impressive numbers, indeed. And the numbers are even more interesting when you understand the transactions.… Read more


Overclocking Your Database Servers

It seems like I’ve been programming forever (we’re talking TS-1000, TRS-80, and Commodore64). I’ve always been looking to improve the performance of my programs, especially database applications. Better performance can usually be attributed to one of the following:

  • New Hardware[insert name of favorite hardware vendor] has just released new server technology that incorporates improved [RAM | CPU | Disk | RAID Controller].
  • Read more