alt Hacker NewsExcept this source code is not using :memory: The linked source code has
(defonce db
(d/init-db! "db/db.db"
{:pool-size 4 :pragma {:synchronous "FULL"}}))
Except this source code is not using :memory: The linked source code has
(defonce db
(d/init-db! "db/db.db"
{:pool-size 4 :pragma {:synchronous "FULL"}}))
Yes it's writing to disk (on a M1 mac which has terribly slow fsync). But, because of the transaction the fsync dance is done once per batch. Each row is the id + a 50 byte data blob.
There's only one index so there's no real write amplification. The numbers will go down as you add more data and indexes.