This is Foundation DB's announcement they are doing full ACID databases with a 14.4M writes per second capability. That is insanely fast in the data base world. Running in AWS with 32 c3.8xlarge configured machines. So basically NSA level data base capability for $150/hr. But perhaps more interesting is that those same machines on the open market are about $225,000. That's two rack, one switch and a
transaction rate that lets you watch every purchase made at every Walmart store in the US, in real time. That is assuming the stats are correct[1], and it wouldn't even be sweating (14M customers a day vs 14M transactions per second). Insanely fast.
Not all ACID transactions are equal. This is just a key-value store-like test. It shows the potential to scale, yet nothing regarding performance in real word.
32 c3.2xlarge instances have 1920GB memory. Given 1 billion 16B+ 8..100B values the whole dataset fits just into memory.
The Cassandra test mentioned [1] sustained loss of 1/3 instances. That's very impressive! Would love to see how F-DB handles this type of real-life situation (hint hint for follow up blog post).
They do seem to talk about writes per second. That means you must flush to disk, not read from cache.
[Edit, more info]
They seem to run with multiple clients which also stresses the system. From their explanation
* The clients simulate 320,000 concurrent sessions
I wish I was an investor in them.
[1] http://www.statisticbrain.com/wal-mart-company-statistics/