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Fix memory parameter references in DataFrame vs Buffer benchmarks #12

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Merged
Alokxk merged 1 commit into from
Jul 27, 2025
Merged

Fix memory parameter references in DataFrame vs Buffer benchmarks #12

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10 changes: 5 additions & 5 deletions docs/DataFrame vs Buffer.md
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,7 @@ Transcript show: 'Testing DataFrame approach...'; cr.
| startTime endTime memoryBefore memoryAfter gcBefore gcAfter gcTimeBefore gcTimeAfter
stockData priceColumn movingAverages |

memoryBefore := Smalltalk vm parameterAt: 3.
memoryBefore := Smalltalk vm parameterAt: 34.
gcBefore := (Smalltalk vm parameterAt: 7) + (Smalltalk vm parameterAt: 9).
gcTimeBefore := (Smalltalk vm parameterAt: 8) + (Smalltalk vm parameterAt: 10).
startTime := Time millisecondClockValue.
Expand All @@ -115,7 +115,7 @@ Transcript show: 'Testing DataFrame approach...'; cr.
].

endTime := Time millisecondClockValue.
memoryAfter := Smalltalk vm parameterAt: 3.
memoryAfter := Smalltalk vm parameterAt: 34.
gcAfter := (Smalltalk vm parameterAt: 7) + (Smalltalk vm parameterAt: 9).
gcTimeAfter := (Smalltalk vm parameterAt: 8) + (Smalltalk vm parameterAt: 10).
Transcript show: 'DataFrame Test Results:'; cr.
Expand All @@ -139,7 +139,7 @@ Transcript show: 'Testing Buffer approach...'; cr.
[
| startTime endTime memoryBefore memoryAfter gcBefore gcAfter gcTimeBefore gcTimeAfter priceBuffer movingAverages |

memoryBefore := Smalltalk vm parameterAt: 3.
memoryBefore := Smalltalk vm parameterAt: 34.
gcBefore := (Smalltalk vm parameterAt: 7) + (Smalltalk vm parameterAt: 9).
gcTimeBefore := (Smalltalk vm parameterAt: 8) + (Smalltalk vm parameterAt: 10).
startTime := Time millisecondClockValue.
Expand Down Expand Up @@ -172,7 +172,7 @@ Transcript show: 'Testing Buffer approach...'; cr.
].

endTime := Time millisecondClockValue.
memoryAfter := Smalltalk vm parameterAt: 3.
memoryAfter := Smalltalk vm parameterAt: 34.
gcAfter := (Smalltalk vm parameterAt: 7) + (Smalltalk vm parameterAt: 9).
gcTimeAfter := (Smalltalk vm parameterAt: 8) + (Smalltalk vm parameterAt: 10).

Expand All @@ -198,7 +198,7 @@ Here are the results from running this benchmark on a 8,000,000 row dataset (app
| Metric | DataFrame | Circular Buffer | Improvement |
|--------|-----------|-----------------|-------------|
| **Execution Time** | ~968,804 ms | ~46,258 ms | **21x faster** |
| **Memory Usage** | ~1,184 MB | ~112 MB | **10.6x less memory** |
| **Memory Usage** | ~222,730 MB | ~14,148 MB | **16x less memory** |
| **GC Events** | ~14,943 | ~944 | **94% fewer** |
| **GC Time** | ~826,382 ms | ~405 ms | **2,040x less GC overhead** |
| **Results Generated** | 7,999,901 | 7,999,901 | Identical accuracy |
Expand Down
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