Task #1 solution

task1.rb

@@ -1,3 +1,5 @@
+require 'parallel'
+
 # Генерация файлов для примера
 files = 5.times.map do |i|
   filename = "file_#{i}.txt"
@@ -14,8 +16,52 @@ def process_files_sequentially(files)
   end
 end
 
-start_time = Time.now
-process_files_sequentially(files)
-end_time = Time.now
+# puts in Parallel
+def process_files_parallel(files)
+  Parallel.map(files, in_threads: 5) do |file|
+    File.open(file, 'r') do |f|
+      f.each_line { |line| puts line }
+    end
+  end
+end
+
+# puts using threads
+def process_files_threads(files)
+  ts = files.map do |file|
+    Thread.new do
+      File.open(file, 'r') do |f|
+        f.each_line { |line| puts line }
+      end
+    end
+  end
+  ts.each(&:join)
+end
+
+def measure_sequentially(files)
+  start_time = Time.now
+  process_files_sequentially(files)
+  end_time = Time.now
+  end_time - start_time
+end
+
+def measure_parallel(files)
+  start_time = Time.now
+  process_files_parallel(files)
+  end_time = Time.now
+  end_time - start_time
+end
+
+def measure_threads(files)
+  start_time = Time.now
+  process_files_threads(files)
+  end_time = Time.now
+  end_time - start_time
+end
+
+time_sequentially = measure_sequentially(files)
+time_parallel = measure_parallel(files)
+time_threads = measure_threads(files)
 
-puts "Время выполнения Sequentially: #{end_time - start_time} секунд" # Время выполнения Sequentially: 2.596501 секунд
+puts "Время выполнения Sequentially: #{time_sequentially} секунд"
+puts "Время выполнения Parallel: #{time_parallel} секунд"
+puts "Время выполнения Concurrently: #{time_threads} секунд"