Files
neon/libs/postgres_ffi/benches
Matthias van de Meent 6c6de6382a Use enum-typed PG versions (#12317)
This makes it possible for the compiler to validate that a match block
matched all PostgreSQL versions we support.

## Problem
We did not have a complete picture about which places we had to test
against PG versions, and what format these versions were: The full PG
version ID format (Major/minor/bugfix `MMmmbb`) as transfered in
protocol messages, or only the Major release version (`MM`). This meant
type confusion was rampant.

With this change, it becomes easier to develop new version-dependent
features, by making type and niche confusion impossible.

## Summary of changes
Every use of `pg_version` is now typed as either `PgVersionId` (u32,
valued in decimal `MMmmbb`) or PgMajorVersion (an enum, with a value for
every major version we support, serialized and stored like a u32 with
the value of that major version)

---------

Co-authored-by: Arpad Müller <arpad-m@users.noreply.github.com>
2025-06-24 17:25:31 +00:00
..

Benchmarks

To run benchmarks:

# All benchmarks.
cargo bench --package postgres_ffi

# Specific file.
cargo bench --package postgres_ffi --bench waldecoder

# Specific benchmark.
cargo bench --package postgres_ffi --bench waldecoder complete_record/size=1024

# List available benchmarks.
cargo bench --package postgres_ffi --benches -- --list

# Generate flamegraph profiles using pprof-rs, profiling for 10 seconds.
# Output in target/criterion/*/profile/flamegraph.svg.
cargo bench --package postgres_ffi --bench waldecoder complete_record/size=1024 -- --profile-time 10

Additional charts and statistics are available in target/criterion/report/index.html.

Benchmarks are automatically compared against the previous run. To compare against other runs, see --baseline and --save-baseline.