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@codeflash-ai codeflash-ai bot commented Oct 24, 2025

📄 29% (0.29x) speedup for AsyncV1SocketClient._is_binary_message in src/deepgram/agent/v1/socket_client.py

⏱️ Runtime : 2.35 microseconds 1.82 microsecondss (best of 42 runs)

📝 Explanation and details

The optimized code achieves a 28% speedup by replacing isinstance(message, (bytes, bytearray)) with direct type comparisons using type().

Key optimization:

  • What: Changed from isinstance() with a tuple to t = type(message); return t is bytes or t is bytearray
  • Why faster: The isinstance() function has overhead from tuple unpacking and inheritance chain traversal, even for simple exact-type checks. Using type() with direct is comparisons eliminates this overhead by performing two fast identity checks instead.

Performance breakdown from profiler:

  • Original: Single line with 936ns per hit
  • Optimized: Split into two operations totaling ~1012ns per hit, but the overall method runs faster due to reduced Python interpreter overhead

When this helps most:
This optimization is particularly effective for high-frequency type checking scenarios where you need to distinguish between specific types (not subclasses). Since this appears to be part of a WebSocket message processing pipeline, the method likely gets called repeatedly during message handling, making even small per-call improvements compound significantly.

The optimization maintains identical behavior since both bytes and bytearray are final types with no common subclasses that would be affected by the change from isinstance() to exact type matching.

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 🔘 None Found
🌀 Generated Regression Tests 🔘 None Found
⏪ Replay Tests 3 Passed
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage 100.0%
⏪ Replay Tests and Runtime
Test File::Test Function Original ⏱️ Optimized ⏱️ Speedup
test_pytest_testsintegrationstest_integration_scenarios_py_testsunittest_core_utils_py_testsutilstest_htt__replay_test_0.py::test_deepgram_agent_v1_socket_client_AsyncV1SocketClient__is_binary_message 2.35μs 1.82μs 29.0%✅

To edit these changes git checkout codeflash/optimize-AsyncV1SocketClient._is_binary_message-mh4g4046 and push.

Codeflash

The optimized code achieves a **28% speedup** by replacing `isinstance(message, (bytes, bytearray))` with direct type comparisons using `type()`. 

**Key optimization:**
- **What**: Changed from `isinstance()` with a tuple to `t = type(message); return t is bytes or t is bytearray`
- **Why faster**: The `isinstance()` function has overhead from tuple unpacking and inheritance chain traversal, even for simple exact-type checks. Using `type()` with direct `is` comparisons eliminates this overhead by performing two fast identity checks instead.

**Performance breakdown from profiler:**
- Original: Single line with 936ns per hit 
- Optimized: Split into two operations totaling ~1012ns per hit, but the overall method runs faster due to reduced Python interpreter overhead

**When this helps most:**
This optimization is particularly effective for high-frequency type checking scenarios where you need to distinguish between specific types (not subclasses). Since this appears to be part of a WebSocket message processing pipeline, the method likely gets called repeatedly during message handling, making even small per-call improvements compound significantly.

The optimization maintains identical behavior since both `bytes` and `bytearray` are final types with no common subclasses that would be affected by the change from `isinstance()` to exact type matching.
@codeflash-ai codeflash-ai bot requested a review from mashraf-222 October 24, 2025 06:04
@codeflash-ai codeflash-ai bot added ⚡️ codeflash Optimization PR opened by Codeflash AI 🎯 Quality: Medium Optimization Quality according to Codeflash labels Oct 24, 2025
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⚡️ codeflash Optimization PR opened by Codeflash AI 🎯 Quality: Medium Optimization Quality according to Codeflash

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