[07:31:05] <Tahvok> Hey guys! I'm reading the docs for production configuration, and currently have stumbled on the readahead configuration. Everywhere except the official doc is says to set it to 0 - however, the docs were recently (in Nov) updated with the following pr, with no explanation in the pr: https://github.com/mongodb/docs/pull/3736
[07:31:47] <Tahvok> What was the reason to change the docs recently?
[10:18:28] <robi> hi, i am writing an application in JS that is using mongodb. i'm going to be doing queries on a bunch of collections. should i keep the collections i care about in my application's memory with `const cachedColl = db.collection("mycoll")`? is there a performance difference if i don't?