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@aseembits93 aseembits93 commented Oct 28, 2025

PR Type

Bug fix


Description

  • Handle line profiler timeouts gracefully

  • Return default empty profiling output

  • Add warning logs on timeout detection

  • Preserve existing fallback for empty output


Diagram Walkthrough

flowchart LR
  A["Run line_profiler_step"] -- "Timeout occurs (TestResults empty)" --> B["Log warning"]
  B -- "Return default output" --> C["timings: {}, unit: 0, str_out: ''"]
  A -- "str_out == ''" --> D["Log couldn't run profiler"]
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File Walkthrough

Relevant files
Bug fix
function_optimizer.py
Add default output on profiler timeout                                     

codeflash/optimization/function_optimizer.py

  • Detect timeout via empty TestResults.
  • Log a warning for timeout occurrence.
  • Return default line profiler output dict.
  • Keep existing warning for empty str_out.
+7/-0     

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪
🧪 No relevant tests
🔒 No security concerns identified
⚡ Recommended focus areas for review

Possible Issue

Inconsistent return type: the new timeout branch returns a dict, while subsequent code treats results as a dict with "str_out" key, but the earlier isinstance check allows a non-dict TestResults path; ensure all branches downstream expect and handle a consistent type.

if isinstance(line_profile_results, TestResults) and not line_profile_results.test_results:
    logger.warning(
        f"Timeout occured while running line profiler for original function {self.function_to_optimize.function_name}"
    )
    # set default value for line profiler results
    return {"timings": {}, "unit": 0, "str_out": ""}
if line_profile_results["str_out"] == "":
    logger.warning(
Typo/Message Quality

Logged warning message contains typos and could hinder log search ("timeoutexpired", "Timeout occured"); consider correcting spelling to "timeout expired" and "occurred".

# this will happen when a timeoutexpired exception happens
if isinstance(line_profile_results, TestResults) and not line_profile_results.test_results:
    logger.warning(
        f"Timeout occured while running line profiler for original function {self.function_to_optimize.function_name}"
    )
Consistency

Default unit set to 0 may be misleading; if other code assumes a real time unit (e.g., seconds), consider using a documented unit value or None and ensure consumers handle this default.

# set default value for line profiler results
return {"timings": {}, "unit": 0, "str_out": ""}

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PR Code Suggestions ✨

Explore these optional code suggestions:

CategorySuggestion                                                                                                                                    Impact
Possible issue
Return a consistently typed default

Ensure the returned default structure matches the expected line_profile_results type
throughout the method. Instead of returning a dict, build a TestResults-compatible
or method-consistent result to avoid type errors in later indexing (e.g.,
line_profile_results["str_out"]). This prevents runtime KeyError/TypeError when
subsequent code assumes a mapping with specific keys or a custom object.

codeflash/optimization/function_optimizer.py [2048-2053]

 if isinstance(line_profile_results, TestResults) and not line_profile_results.test_results:
     logger.warning(
         f"Timeout occured while running line profiler for original function {self.function_to_optimize.function_name}"
     )
-    # set default value for line profiler results
-    return {"timings": {}, "unit": 0, "str_out": ""}
+    # set default value for line profiler results consistent with expected mapping access
+    line_profile_results = {"timings": {}, "unit": 0.0, "str_out": ""}
+    return line_profile_results
Suggestion importance[1-10]: 6

__

Why: The suggestion highlights a potential type/shape inconsistency: later code indexes line_profile_results["str_out"], so ensuring a consistent mapping avoids TypeError. It's a reasonable guard, though impact is moderate since the current return already matches the expected mapping keys.

Low
General
Correct typo in warning log

Fix the typo in the log message to aid monitoring and log search. Correct "occured"
to "occurred" for clarity and consistency.

codeflash/optimization/function_optimizer.py [2049-2051]

 logger.warning(
-    f"Timeout occured while running line profiler for original function {self.function_to_optimize.function_name}"
+    f"Timeout occurred while running line profiler for original function {self.function_to_optimize.function_name}"
 )
Suggestion importance[1-10]: 3

__

Why: The fix is accurate and improves log clarity by correcting "occured" to "occurred", but it’s a minor textual improvement with low impact on functionality.

Low

@aseembits93 aseembits93 enabled auto-merge October 28, 2025 18:58
@aseembits93 aseembits93 merged commit fdd7ca9 into main Oct 28, 2025
21 of 22 checks passed
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3 participants