Add basic line encoder benchmark

.credo.exs

@@ -3,7 +3,7 @@
     %{
       name: "default",
       files: %{
-        included: ["config/", "lib/", "test/"]
+        included: ["bench/", "config/", "lib/", "test/"]
       }
     }
   ]

.formatter.exs

@@ -9,7 +9,7 @@ export_locals_without_parens = [
 
 [
   inputs: [
-    "{config,lib,test}/**/*.{ex,exs}",
+    "{bench,config,lib,test}/**/*.{ex,exs}",
     "{.credo,.formatter,mix}.exs"
   ],
   locals_without_parens: export_locals_without_parens,

bench/line_encoder.exs

@@ -0,0 +1,52 @@
+defmodule Instream.Benchmark.LineEncoder do
+  alias Instream.Encoder.Line
+
+  @point_complete %{
+    measurement: "disk_free",
+    fields: %{
+      value: 442_221_834_240
+    },
+    tags: %{
+      hostname: "server01"
+    },
+    timestamp: 1_435_362_189_575_692_182
+  }
+
+  @point_escaping %{
+    measurement: ~S|"measurement with quotes"|,
+    tags: %{
+      "tag key with spaces" => ~S|tag,value,with"commas"|
+    },
+    fields: %{
+      ~S|field_key\\\\| => ~S|string field value, only " need be quoted|
+    },
+    timestamp: nil
+  }
+
+  @point_simple %{
+    measurement: "disk_free",
+    fields: %{
+      value: 442_221_834_240
+    },
+    timestamp: nil
+  }
+
+  def run do
+    Benchee.run(
+      %{
+        "Encoding" => &Line.encode/1
+      },
+      inputs: %{
+        "complete" => [@point_complete],
+        "escaping" => [@point_escaping],
+        "multiple" => List.duplicate(@point_simple, 50),
+        "simple" => [@point_simple]
+      },
+      formatters: [{Benchee.Formatters.Console, comparison: false}],
+      warmup: 2,
+      time: 10
+    )
+  end
+end
+
+Instream.Benchmark.LineEncoder.run()

mix.exs

@@ -9,13 +9,15 @@ defmodule Instream.Mixfile do
       name: "Instream",
       version: "1.0.0-dev",
       elixir: "~> 1.5",
+      aliases: aliases(),
       deps: deps(),
       description: "InfluxDB driver for Elixir",
       dialyzer: dialyzer(),
       docs: docs(),
       elixirc_paths: elixirc_paths(Mix.env()),
       package: package(),
       preferred_cli_env: [
+        "bench.line_encoder": :bench,
         coveralls: :test,
         "coveralls.detail": :test,
         "coveralls.travis": :test
@@ -31,8 +33,15 @@ defmodule Instream.Mixfile do
     ]
   end
 
+  defp aliases do
+    [
+      "bench.line_encoder": ["run bench/line_encoder.exs"]
+    ]
+  end
+
   defp deps do
     [
+      {:benchee, "~> 1.0", only: :bench, runtime: false},
       {:credo, "~> 1.0", only: :dev, runtime: false},
       {:dialyxir, "~> 1.0.0-rc", only: :dev, runtime: false},
       {:ex_doc, ">= 0.0.0", only: :dev, runtime: false},

mix.lock

@@ -1,7 +1,9 @@
 %{
+  "benchee": {:hex, :benchee, "1.0.1", "66b211f9bfd84bd97e6d1beaddf8fc2312aaabe192f776e8931cb0c16f53a521", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, repo: "hexpm", optional: false]}], "hexpm"},
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
   "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
   "credo": {:hex, :credo, "1.0.4", "d2214d4cc88c07f54004ffd5a2a27408208841be5eca9f5a72ce9e8e835f7ede", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
+  "deep_merge": {:hex, :deep_merge, "1.0.0", "b4aa1a0d1acac393bdf38b2291af38cb1d4a52806cf7a4906f718e1feb5ee961", [:mix], [], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "1.0.0-rc.6", "78e97d9c0ff1b5521dd68041193891aebebce52fc3b93463c0a6806874557d7d", [:mix], [{:erlex, "~> 0.2.1", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm"},
   "earmark": {:hex, :earmark, "1.3.2", "b840562ea3d67795ffbb5bd88940b1bed0ed9fa32834915125ea7d02e35888a5", [:mix], [], "hexpm"},
   "erlex": {:hex, :erlex, "0.2.1", "cee02918660807cbba9a7229cae9b42d1c6143b768c781fa6cee1eaf03ad860b", [:mix], [], "hexpm"},