Class: Benchmark::HTTP::Command::Hammer

Inherits:
Samovar::Command
  • Object
show all
Defined in:
lib/benchmark/http/command/hammer.rb

Instance Method Summary collapse

Instance Method Details

#alpn_protocols ⇒ Object 



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# File 'lib/benchmark/http/command/hammer.rb', line 72

def alpn_protocols
	@options[:alpn_protocols]&.split(',')
end

#call ⇒ Object 



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# File 'lib/benchmark/http/command/hammer.rb', line 89

def call
	while true
		@urls.each do |url|
			run(url)
		end
		
		if @interval
			sleep(@interval)
		else
			break
		end
	end
end

#measure_performance(concurrency, count, endpoint, request_path) ⇒ Object 



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# File 'lib/benchmark/http/command/hammer.rb', line 31

def measure_performance(concurrency, count, endpoint, request_path)
	Console.logger.info(self) {"I am running #{concurrency} asynchronous tasks that will each make #{count} sequential requests..."}
	
	statistics = Statistics.new(concurrency)
	task = Async::Task.current
	running = true
	
	progress_task = task.async do |child|
		while true
			child.sleep(1)
			Console.logger.info(self, statistics)
		end
	end
	
	concurrency.times.map do
		task.async do
			client = Async::HTTP::Client.new(endpoint, protocol: endpoint.protocol)
			
			count.times do |i|
				statistics.measure do
					response = client.get(request_path).tap(&:finish)
				end
			end
			
			client.close
		end
	end.each(&:wait)
	
	progress_task&.stop
	
	Console.logger.info(self) do |buffer|
		buffer.puts "I made #{statistics.count} requests in #{Seconds[statistics.sequential_duration]}. The per-request latency was #{Seconds[statistics.latency]}. That's #{statistics.per_second} asynchronous requests/second."
		buffer.puts "\t          Variance: #{Seconds[statistics.variance]}"
		buffer.puts "\tStandard Deviation: #{Seconds[statistics.standard_deviation]}"
		buffer.puts "\t    Standard Error: #{Seconds[statistics.standard_error]}"
		buffer.puts statistics
	end
	
	return statistics
end

#run(url) ⇒ Object 



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# File 'lib/benchmark/http/command/hammer.rb', line 76

def run(url)
	endpoint = Async::HTTP::Endpoint.parse(url, alpn_protocols: self.alpn_protocols)
	request_path = endpoint.url.request_uri
	
	Console.logger.info(self) {"I am going to benchmark #{url}..."}
	
	Sync do |task|
		statistics = []
		
		base = measure_performance(@options[:concurrency], @options[:count], endpoint, request_path)
	end
end