Ryan Malloy 90ce035a00 Phase 21: Performance benchmarks (2026.05.04.5) ...

Adds tests/benchmarks/ with pytest-benchmark coverage of the hot codec
paths and end-to-end SELECT/INSERT/pool/async round-trips. Establishes
a committed baseline.json so PRs can be regression-checked at review
via --benchmark-compare.

* test_codec_perf.py (16): decode/encode_param/parse_tuple_payload
  micro-benchmarks - run without container, suitable for pre-merge CI.
* test_select_perf.py (4): SELECT round-trips - 1-row latency floor,
  10-row, 1k-row full fetch, parameterized.
* test_insert_perf.py (3): single-row INSERT, executemany 100 / 1000.
* test_pool_perf.py (3): cold connect, pool acquire/release, pool
  acquire + query + release.
* test_async_perf.py (2): async round-trip overhead, 10x concurrent.
* baseline.json: committed snapshot, 28 measurements.
* benchmark pytest marker, gated off by default.
* Makefile: bench / bench-codec / bench-save targets;
  test-integration excludes benchmarks for speed.

Headline numbers (dev container loopback):
* decode(int): 181 ns
* parse_tuple 5 cols: 2.87 µs/row
* SELECT 1 round-trip: 177 µs
* Pool acquire+query+release: 295 µs
* Cold connect: 11.2 ms (72x slower than pool)

UTF-8 decode carries no measurable cost vs iso-8859-1 - confirms
Phase 20 didn't regress anything.

Total: 69 unit + 211 integration + 28 benchmark = 308 tests.

2026-05-04 17:21:12 -06:00

..

benchmarks

Phase 21: Performance benchmarks (2026.05.04.5)

2026-05-04 17:21:12 -06:00

reference

Phase 9: smart-LOB BLOB/CLOB locator decoding (Phase 10 deferred for fetch)

2026-05-04 13:26:15 -06:00

__init__.py

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

_proxy.py

Phase 19: resilience tests via fault injection (v2026.05.04.3)

2026-05-04 16:57:06 -06:00

conftest.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

docker-compose.yml

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

test_aio.py

Phase 16: async API (informix_db.aio)

2026-05-04 14:58:19 -06:00

test_blob_locator_unit.py

Phase 9: smart-LOB BLOB/CLOB locator decoding (Phase 10 deferred for fetch)

2026-05-04 13:26:15 -06:00

test_blob.py

Phase 8: BYTE/TEXT bind+read via SQ_BBIND/SQ_BLOB/SQ_FETCHBLOB

2026-05-04 13:13:55 -06:00

test_composite_types.py

Phase 12: ROW / COLLECTION type recognition

2026-05-04 14:30:44 -06:00

test_datetime.py

Phase 6.c: DATE / DATETIME / DECIMAL parameter encoding

2026-05-04 12:09:16 -06:00

test_decimal.py

Phase 6.c: DATE / DATETIME / DECIMAL parameter encoding

2026-05-04 12:09:16 -06:00

test_dml.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_errors.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_fastpath.py

Phase 13: SQ_FPROUTINE / SQ_EXFPROUTINE fast-path RPC

2026-05-04 14:36:21 -06:00

test_interval_encode.py

Phase 6.e: INTERVAL parameter encoding

2026-05-04 12:30:48 -06:00

test_interval_unit.py

Phase 6.d: INTERVAL decoding (both qualifier families)

2026-05-04 12:22:07 -06:00

test_interval.py

Phase 6.d: INTERVAL decoding (both qualifier families)

2026-05-04 12:22:07 -06:00

test_nulls.py

Phase 4.x: parameterized SELECT, NULL row decoding, executemany()

2026-05-04 11:11:50 -06:00

test_params.py

Phase 8: BYTE/TEXT bind+read via SQ_BBIND/SQ_BLOB/SQ_FETCHBLOB

2026-05-04 13:13:55 -06:00

test_pdu_match.py

Phase 2: SELECT works end-to-end — pure-Python Informix fully reads data

2026-05-03 15:37:10 -06:00

test_pool.py

Phase 15: connection pool

2026-05-04 14:50:27 -06:00

test_protocol.py

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

test_resilience.py

Phase 19: resilience tests via fault injection (v2026.05.04.3)

2026-05-04 16:57:06 -06:00

test_scroll_cursor_server.py

Phase 18: server-side scrollable cursors via SQ_SFETCH (v2026.05.04.2)

2026-05-04 16:41:25 -06:00

test_scroll_cursor.py

Phase 17: scroll cursor API (v2026.05.04.1)

2026-05-04 15:51:24 -06:00

test_select.py

Phase 2.x: VARCHAR row decoding works — three byte-level fixes

2026-05-04 07:55:13 -06:00

test_smart_lob_read.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smart_lob_write.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smart_lob.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smoke.py

Phase 4: parameter binding (SQ_BIND) — int, float, str, bool, None

2026-05-04 10:54:32 -06:00

test_tls.py

Phase 14: TLS / SSL transport

2026-05-04 14:46:53 -06:00

test_transactions.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_unicode.py

Phase 20: UTF-8/multibyte locale support (2026.05.04.4)

2026-05-04 17:13:19 -06:00