Module: Kumi::Dev::ProfileRunner

Defined in:
lib/kumi/dev/profile_runner.rb

Class Method Summary collapse

Class Method Details

.analyze_events(events) ⇒ Object 



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# File 'lib/kumi/dev/profile_runner.rb', line 172

def self.analyze_events(events)
  {
    summary: {
      total_events: events.length,
      phase_events: events.count { |e| e["kind"] == "phase" },
      memory_events: events.count { |e| e["kind"] == "mem" },
      operation_events: events.count { |e| !%w[phase mem summary final_summary cache_analysis].include?(e["kind"]) }
    },
    phases: analyze_phases(events.select { |e| e["kind"] == "phase" }),
    memory_snapshots: events.select { |e| e["kind"] == "mem" }.map do |e|
      {
        label: e["label"],
        heap_live: e["heap_live"],
        rss_mb: e["rss_mb"],
        timestamp: e["ts"]
      }
    end,
    final_analysis: events.find { |e| e["kind"] == "final_summary" }&.dig("data"),
    cache_analysis: events.find { |e| e["kind"] == "cache_analysis" }&.dig("data")
  }
end

.analyze_phases(phase_events) ⇒ Object 



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# File 'lib/kumi/dev/profile_runner.rb', line 162

def self.analyze_phases(phase_events)
  phase_events.group_by { |e| e["name"] }.transform_values do |events|
    {
      count: events.length,
      total_ms: events.sum { |e| e["wall_ms"] }.round(3),
      avg_ms: (events.sum { |e| e["wall_ms"] } / events.length).round(4)
    }
  end.sort_by { |_, stats| -stats[:total_ms] }.to_h
end

.run(script_path, opts = {}) ⇒ Object 



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# File 'lib/kumi/dev/profile_runner.rb', line 12

def run(script_path, opts = {})
  # Validate script exists
  unless File.exist?(script_path)
    puts "Error: Script not found: #{script_path}"
    return false
  end

  # Set up profiling environment
  setup_profiler_env(opts)

  puts "Profiling: #{script_path}"
  puts "Configuration:"
  puts "  Output: #{ENV.fetch('KUMI_PROFILE_FILE', nil)}"
  puts "  Phases: enabled"
  puts "  Operations: #{ENV['KUMI_PROFILE_OPS'] == '1' ? 'enabled' : 'disabled'}"
  puts "  Sampling: #{ENV['KUMI_PROFILE_SAMPLE'] || '1'}"
  puts "  Persistent: #{ENV['KUMI_PROFILE_PERSISTENT'] == '1' ? 'yes' : 'no'}"
  puts "  Memory snapshots: #{opts[:memory] ? 'enabled' : 'disabled'}"
  puts

  # Initialize profiler
  Dev::Profiler.init_persistent! if ENV["KUMI_PROFILE_PERSISTENT"] == "1"

  # Add memory snapshot before execution
  Dev::Profiler.memory_snapshot("script_start") if opts[:memory]

  # Execute the script
  start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  begin
    Dev::Profiler.phase("script_execution", script: File.basename(script_path)) do
      # Execute in a clean environment to avoid polluting the current process
      load(File.expand_path(script_path))
    end
  rescue StandardError => e
    puts "Error executing script: #{e.message}"
    puts e.backtrace.first(5).join("\n")
    return false
  ensure
    execution_time = Process.clock_gettime(Process::CLOCK_MONOTONIC) - start_time
  end

  # Add memory snapshot after execution
  Dev::Profiler.memory_snapshot("script_end") if opts[:memory]

  # Finalize profiler to get aggregated data
  Dev::Profiler.finalize!

  puts "Script completed in #{execution_time.round(4)}s"

  # Show analysis unless quiet
  show_analysis(opts) unless opts[:quiet]

  true
rescue LoadError => e
  puts "Error loading script: #{e.message}"
  false
end

.setup_profiler_env(opts) ⇒ Object 



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# File 'lib/kumi/dev/profile_runner.rb', line 70

def self.setup_profiler_env(opts)
  # Always enable profiling
  ENV["KUMI_PROFILE"] = "1"

  # Output file
  output_file = opts[:output] || "tmp/profile.jsonl"
  ENV["KUMI_PROFILE_FILE"] = output_file

  # Truncate if requested
  ENV["KUMI_PROFILE_TRUNCATE"] = opts[:truncate] ? "1" : "0"

  # Streaming
  ENV["KUMI_PROFILE_STREAM"] = opts[:stream] ? "1" : "0"

  # Operations profiling
  ENV["KUMI_PROFILE_OPS"] = if opts[:phases_only]
                              "0"
                            elsif opts[:ops]
                              "1"
                            else
                              # Default: phases only
                              "0"
                            end

  # Sampling
  ENV["KUMI_PROFILE_SAMPLE"] = opts[:sample].to_s if opts[:sample]

  # Persistent mode
  ENV["KUMI_PROFILE_PERSISTENT"] = opts[:persistent] ? "1" : "0"

  # Ensure output directory exists
  FileUtils.mkdir_p(File.dirname(output_file))
end

.show_analysis(opts) ⇒ Object 



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# File 'lib/kumi/dev/profile_runner.rb', line 104

def self.show_analysis(opts)
  output_file = ENV.fetch("KUMI_PROFILE_FILE", nil)

  unless File.exist?(output_file)
    puts "No profile data generated"
    return
  end

  puts "\n=== Profiling Analysis ==="

  # Use ProfileAggregator for comprehensive analysis
  require_relative "profile_aggregator"
  aggregator = ProfileAggregator.new(output_file)

  if opts[:json]
    # Export full analysis to JSON and display
    json_output = opts[:json_file] || "/tmp/profile_analysis.json"
    aggregator.export_summary(json_output)
    puts File.read(json_output)
    return
  end

  # Show comprehensive analysis using ProfileAggregator
  if opts[:detailed]
    aggregator.detailed_report(limit: opts[:limit] || 15)
  else
    # Show summary + key insights
    aggregator.summary_report

    # Add some key insights for CLI users
    puts
    puts "=== KEY INSIGHTS ==="

    # Show top hotspots
    hotspots = aggregator.hotspot_analysis(limit: 3)
    if hotspots.any?
      puts "Top Performance Bottlenecks:"
      hotspots.each_with_index do |(_key, stats), i|
        puts "  #{i + 1}. #{stats[:decl]} (#{stats[:tag]}): #{stats[:total_ms]}ms"
      end
    end

    # Reference analysis summary
    ref_analysis = aggregator.reference_operation_analysis
    if ref_analysis[:operations] > 0
      puts "Reference Operation Impact: #{(ref_analysis[:total_time] / aggregator.vm_execution_time * 100).round(1)}% of VM time"
    end

    # Memory impact
    mem = aggregator.memory_analysis
    puts "Memory Impact: #{mem[:growth][:heap_growth_pct]}% heap growth, #{mem[:growth][:rss_growth_pct]}% RSS growth" if mem
  end

  puts
  puts "Full profile: #{output_file}"
  puts "For detailed analysis: bin/kumi profile #{ARGV.join(' ')} --detailed"
end