Adding datadog gem benchmarks for cross comparison

Signed-off-by: Pedro Tanaka <pedro.tanaka@shopify.com>

benchmark/local-udp-throughput

@@ -10,6 +10,24 @@ require "datadog/statsd"
 require "forwardable"
 require "vernier"
 
+module Datadog
+  class Statsd
+    class Telemetry
+      def flush
+        ["bytes", "packets"].each do |kind|
+          ["sent", "dropped", "dropped_queue", "dropped_writer"].each do |measure|
+            var = "#{kind}_#{measure}"
+            puts "#{var}: #{instance_variable_get("@#{var}".to_sym)}"
+          end
+        end
+        puts "-" * 10
+
+        []
+      end
+    end
+  end
+end
+
 class DatadogShim
   extend Forwardable
 
@@ -222,3 +240,40 @@ benchmark_implementation(
 if ENABLE_PROFILING
   Vernier.stop_profile
 end
+
+if ENABLE_PROFILING
+  Vernier.start_profile(out: "tmp/benchmark_profile_datadog.json")
+end
+benchmark_implementation(
+  "Datadog client with UDP and delayed serialization",
+  {
+    buffer_max_payload_size: 4096,
+    delay_serialization: true,
+    telemetry_flush_interval: 1,
+    # The datadog implemtation will drop metrics if the queue is full
+    # to imitate the behavior of the implementation of this gem, we set
+    # the queue size to infinity to avoid dropping metrics.
+    sender_queue_size: Float::INFINITY,
+  },
+  true,
+)
+if ENABLE_PROFILING
+  Vernier.stop_profile
+end
+
+if ENABLE_PROFILING
+  Vernier.start_profile(out: "tmp/benchmark_profile_datadog.json")
+end
+benchmark_implementation(
+  "UDP - Datadog gem - using: delay_serialization, multi-threaded, allow dropping samples",
+  {
+    buffer_max_payload_size: 4096,
+    delay_serialization: true,
+    telemetry_flush_interval: 1,
+    sender_queue_size: 250_000,
+  },
+  true,
+)
+if ENABLE_PROFILING
+  Vernier.stop_profile
+end