Benchmarks

Every number below is measured on a real Mac with the same harness you can run. No lab conditions, no cherry picking.

Sift0.31 s
Apple Mail1.9 s

Cold start to a usable inbox, averaged over ten runs on Apple Silicon. Sift reads from a warm SQLite mirror, so the list is painted before the network is touched.

All interactions

0.31 s Cold start to usable inbox · Apple Mail 1.9 s
14 ms Open a thread · Gmail web 180 ms
22 ms Archive with undo · Gmail web 240 ms
18 ms Search as you type · local index, no network

Methodology

About these numbers

Sift is measured on the same machine you will run it on, not in a lab. The cold-start figure is the first useful paint of the inbox with a warm OS cache. Interaction figures are input-to-paint on a local mirror, so network latency and remote image loads are not counted. Those belong to the network, and Sift never blocks an interaction on them.

Numbers vary with mailbox size and disk speed, so judge the shape of the result rather than the exact millisecond. The benchmark harness lives in tools/sift-bench in the repository; a published build is coming soon.