998324 - Profile the pouchdb performance test suite

Status: NEW

(Core :: Storage: IndexedDB, task, P5)

Description

[Kyle Huey (Exited; not receiving bugmail, old account, do not use)]

PouchDB has a performance test suite: https://github.com/pouchdb/pouchdb/tree/master/tests/performance.  Instructions at: https://github.com/pouchdb/pouchdb/blob/master/CONTRIBUTING.md

Dale says:

> We have only just started on and the tests may not be great representations,
> but early signs are chrome and firefox are quite comparable with chrome
> being noticeably faster for keyrange queries, and safari being orders of
> magnitude faster

We should figure out what's going on and whether the issues are implementation problems or API design problems.

Comment 1

[Dale Harvey (:daleharvey)]

Cheers, these performance tests have just started and will be getting a lot of work coming up, but I want to make sure they are useful for being able to introspect whats going on both in and below PouchDB. If anyone needs help getting them up and running can needinfo me or catch me on IRC

We have written a database with the same semantics on top of indexeddb, websql, leveldb and interestingly enough there is a version using an leveldb abstraction on top of indexeddb as well, so it should provide pretty interesting comparisons between them.

Comment 2

[Dale Harvey (:daleharvey)]

And first thing ill do is get these tests online somewhere so yall dont need to install or muck around with pouch, should have it done for monday.

I will try to write a blog post about the internal architecture so you have a better idea of what its doing

Comment 3

[Nolan Lawson]

I went ahead and hosted the performance tests here: http://pouchtest.com/tests/performance/test.html

It should auto-update to PouchDB master every day at midnight EST, and the command-line options described here still apply: https://github.com/pouchdb/pouchdb/blob/master/CONTRIBUTING.md#performance-tests-in-the-browser

The "temp-views" test tends to hang pretty badly (in all browsers), but you can skip it by appending ?grep=persisted-views .