supabase / supavisor / 16445308960

65%

Build Type

push

github

Committed by web-flow

Commit Message

perf: use a constant number of ranch instances (#706)

Instead of starting one ranch instance per pool, use the same two ranch
instances for all pools.

Each ranch was starting a minimum of 10 acceptors (and consequently, 10
connection supervisors). With 10_000 pools, these are 200_000 processes,
which consume a sizeable amount of memory and resources. They also added
complexity in managing the separate ranch instances (need to start and
finish them at appropriate times, specially because they weren't linked
to the pool).

The ranch acceptors/connection supervisors aren't a bottleneck, and if
they were, we can control the number of acceptors/supervisors through
configuration. In synthesis, there's no benefit in starting bringing
multiple ranch instances, only the resource consumption drawback.

Run Details

5 of 12 new or added lines in 4 files covered. (41.67%)

75 existing lines in 2 files now uncovered.

1164 of 2096 relevant lines covered (55.53%)

133.85 hits per line