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im wondering if the sqlalchemy write part does something it feels weird that it would be faster than the base driver ❯ python scripts/bench.py --driver asyncpg --driver sqlite
Running benchmark for driver: asyncpg
Running benchmark for driver: sqlite
Benchmark Results
┏━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┓
┃ Driver ┃ Library ┃ Scenario ┃ Time (s) ┃ % Slower vs Raw ┃
┡━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━┩
│ asyncpg │ raw │ initialization │ 0.0497 │ — │
│ asyncpg │ sqlspec │ initialization │ 0.0977 │ 96.6% │
│ asyncpg │ sqlalchemy │ initialization │ 0.0329 │ -33.7% │
│ asyncpg │ raw │ write_heavy │ 51.8678 │ — │
│ asyncpg │ sqlspec │ write_heavy │ 56.8252 │ 9.6% │
│ asyncpg │ sqlalchemy │ write_heavy │ 4.5475 │ -91.2% │
│ asyncpg │ raw │ read_heavy │ 0.0721 │ — │
│ asyncpg │ sqlspec │ read_heavy │ 0.1858 │ 157.8% │
│ asyncpg │ sqlalchemy │ read_heavy │ 0.1080 │ 49.9% │
│ sqlite │ raw │ initialization │ 0.0007 │ — │
│ sqlite │ sqlspec │ initialization │ 0.0029 │ 343.8% │
│ sqlite │ sqlalchemy │ initialization │ 0.0043 │ 555.7% │
│ sqlite │ raw │ write_heavy │ 0.0594 │ — │
│ sqlite │ sqlspec │ write_heavy │ 2.5934 │ 4269.5% │
│ sqlite │ sqlalchemy │ write_heavy │ 0.7772 │ 1209.4% │
│ sqlite │ raw │ read_heavy │ 0.0804 │ — │
│ sqlite │ sqlspec │ read_heavy │ 2.5633 │ 3087.9% │
│ sqlite │ sqlalchemy │ read_heavy │ 0.7890 │ 881.2% │
└─────────┴────────────┴────────────────┴──────────┴─────────────────┘
Benchmarks complete for drivers: asyncpg, sqlite |
cofin
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Feb 4, 2026
Add comprehensive benchmark tooling originally contributed by euri10 in PR #354, with enhancements for testing query cache effectiveness. Scenarios: - initialization: Connection and table setup overhead - write_heavy: Bulk insert performance (execute_many) - read_heavy: Bulk read with fetchall - repeated_queries: Single-row queries with varying params (tests _qc_*) Compares: raw driver vs sqlspec vs SQLAlchemy Drivers: sqlite (asyncpg requires PostgreSQL server) Usage: uv run python scripts/bench.py --driver sqlite --rows 10000 Co-authored-by: euri10 <benoit.barthelet@gmail.com>
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wip, trying to figure out if reads are indeed weirdly slow