Comment by marknadal

(Full disclosure, I work at a database company) Their performance is pretty impressive, but you can get over 30X their speed (30M ops/sec) by caching - see https://github.com/amark/gun/wiki/100000-ops-sec-in-IE6-on-2... .

And this can be done without compromising the storage or integrity of the data. The Observable pattern lets you update caches while you perform writes so the data stays correct, reflecting what is on disk. If caches don't exist then you pull from disk (slow) and write to the caches.