Module: Kernel

Defined in:
lib/singed/kernel_ext.rb

Instance Method Summary collapse

Instance Method Details

#flamegraph(label = nil, open: true, ignore_gc: false, interval: 1000, io: $stdout) ⇒ Object 



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# File 'lib/singed/kernel_ext.rb', line 2

def flamegraph(label = nil, open: true, ignore_gc: false, interval: 1000, io: $stdout, &)
  fg = Singed::Flamegraph.new(label: label, ignore_gc: ignore_gc, interval: interval)
  result = fg.record(&)
  fg.save

  # avoid a dep on a colorizing gem by doing this ourselves
  bright_red = "\e[91m"
  none = "\e[0m"
  if open
    # use npx, so we don't have to add it as a dependency
    io.puts "🔥📈 #{bright_red}Captured flamegraph, opening with#{none}: #{fg.open_command}"
    fg.open
  else
    io.puts "🔥📈 #{bright_red}Captured flamegraph to file#{none}: #{fg.filename}"
  end

  result
end