I recently posted a test harness for generating physical I/O using the new version of SLOB (the Silly Little Oracle Benchmark) known as SLOBv2. This test harness can be used for driving varying workloads and then processing the results for use in ... well, wherever really. Some friends of mine are getting very adept with … Continue reading SLOB2: Testing The Effect Of Oracle Blocksize
Tag: flash memory
The Most Important Thing You Need To Know About Flash
NAND flash development is driven by the consumer market – not the enterprise. The question to ask any flash vendor isn't "how fast?" but "where's your innovation?"
Does My Database Need Flash?
Not every database benefits from flash storage – knowing when it matters requires understanding how much I/O your workload generates, how random it is and how much latency is already costing you.
Understanding I/O: Random vs Sequential
Disk I/O forces a choice between random and sequential access – and that choice defines whether latency compounds or disappears. Flash makes the distinction irrelevant.
Database Workload Theory
In the scientific world, theoretical physicists postulate theories and ideas, for example the Higgs Boson. After this, experimental physicists design and implement experiments, such as the Large Hadron Collider, to prove or disprove these theories. In this post I'm going to try and do the same thing with databases, except on a smaller budget, with less … Continue reading Database Workload Theory
Flash Enables Human-Time Analytics
Analytics. Apparently it's "the discovery and communication of meaningful patterns in data". Allegedly it's the "Next Holy Grail". By definition it's "the science of logical analysis". But what is it really? We know that it is considered a type of Business Intelligence. We know that when applied to massive volumes of information it is often described … Continue reading Flash Enables Human-Time Analytics
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