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libs/wal_decoder/benches/README.md

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WAL Decoding and Interpretation Benchmarks

Note that these benchmarks pull WAL from a public bucket in S3 as a preparation step. Hence, you need a way to auth with AWS. You can achieve this by copying the ~/.aws/config file from the AWS SSO notion page and exporting AWS_PROFILE=dev when invoking the benchmarks.

To run benchmarks:

sh
aws sso login --profile dev

# All benchmarks.
AWS_PROFILE=dev cargo bench --package wal_decoder

# Specific file.
AWS_PROFILE=dev cargo bench --package wal_decoder --bench bench_interpret_wal

# Specific benchmark.
AWS_PROFILE=dev cargo bench --package wal_decoder --bench bench_interpret_wal unsharded

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

# Generate flamegraph profiles using pprof-rs, profiling for 10 seconds.
# Output in target/criterion/*/profile/flamegraph.svg.
AWS_PROFILE=dev cargo bench --package wal_decoder --bench bench_interpret_wal unsharded -- --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.