Class: Omnizip::Profiler::MemoryProfiler

Inherits:
Object
  • Object
show all
Defined in:
lib/omnizip/profiler/memory_profiler.rb

Overview

Profiles memory allocation and retention

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MemoryProfiler

Returns a new instance of MemoryProfiler.



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# File 'lib/omnizip/profiler/memory_profiler.rb', line 7

def initialize
  @call_counts = Hash.new(0)
end

Instance Method Details

#call_count(operation_name) ⇒ Object 



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# File 'lib/omnizip/profiler/memory_profiler.rb', line 57

def call_count(operation_name)
  @call_counts[operation_name]
end

#profile(operation_name) ⇒ Object 



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# File 'lib/omnizip/profiler/memory_profiler.rb', line 11

def profile(operation_name)
  GC.start
  GC.disable

  gc_stat_before = GC.stat
  objspace_before = ObjectSpace.count_objects

  yield

  objspace_after = ObjectSpace.count_objects
  gc_stat_after = GC.stat

  GC.enable

  @call_counts[operation_name] += 1

  # Calculate memory metrics
  total_allocated = gc_stat_after[:total_allocated_objects] -
    gc_stat_before[:total_allocated_objects]
  total_freed = gc_stat_after[:total_freed_objects] -
    gc_stat_before[:total_freed_objects]

  # Object allocation delta
  objspace_after[:TOTAL]
  objspace_before[:TOTAL]

  # Estimate memory based on object allocations
  # Average Ruby object is ~40 bytes
  estimated_memory = total_allocated * 40

  Models::PerformanceResult.new(
    operation_name: operation_name,
    memory_allocated: estimated_memory,
    memory_retained: (total_allocated - total_freed) * 40,
    object_allocations: total_allocated,
    gc_runs: 0,
    call_count: @call_counts[operation_name],
  )
ensure
  GC.enable
end

#reset! ⇒ Object 



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# File 'lib/omnizip/profiler/memory_profiler.rb', line 53

def reset!
  @call_counts.clear
end

#total_calls ⇒ Object 



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# File 'lib/omnizip/profiler/memory_profiler.rb', line 61

def total_calls
  @call_counts.values.sum
end