fast utc implementation

benchmarks/time.bench.js

@@ -0,0 +1,33 @@
+'use strict'
+
+var bench = require('fastbench')
+var pino = require('../')
+
+var epoch = pino({timestamp: pino.stdTimeFunctions.epochTime}, pino.destination('/dev/null'))
+var unix = pino({timestamp: pino.stdTimeFunctions.unixTime}, pino.destination('/dev/null'))
+var utc = pino({timestamp: pino.stdTimeFunctions.utcTime}, pino.destination('/dev/null'))
+
+var max = 100
+
+var run = bench([
+  function benchPinoEpochTime (cb) {
+    for (var i = 0; i < max; i++) {
+      epoch.info('hello world')
+    }
+    setImmediate(cb)
+  },
+  function benchPinoUnixTime (cb) {
+    for (var i = 0; i < max; i++) {
+      unix.info('hello world')
+    }
+    setImmediate(cb)
+  },
+  function benchPinoUtcTime (cb) {
+    for (var i = 0; i < max; i++) {
+      utc.info('hello world')
+    }
+    setImmediate(cb)
+  }
+], 10000)
+
+run(run)

lib/time.js

@@ -1,5 +1,7 @@
 'use strict'
 
+const fastDate = require('fast-date')
+
 function nullTime () {
   return ''
 }
@@ -12,8 +14,13 @@ function unixTime () {
   return ',"time":' + Math.round(Date.now() / 1000.0)
 }
 
+function utcTime () {
+  return ',"time": "' + fastDate() + '"'
+}
+
 module.exports = {
   nullTime: nullTime,
   epochTime: epochTime,
-  unixTime: unixTime
+  unixTime: unixTime,
+  utcTime: utcTime
 }

package.json

@@ -78,6 +78,7 @@
     "zuul": "^3.11.1"
   },
   "dependencies": {
+    "fast-date": "^1.0.3",
     "fast-json-parse": "^1.0.3",
     "fast-safe-stringify": "^2.0.4",
     "flatstr": "^1.0.5",

pino.js

@@ -22,7 +22,7 @@ var defaultOptions = {
   safe: true,
   name: undefined,
   serializers: {},
-  timestamp: time.epochTime,
+  timestamp: time.utcTime,
   level: 'info',
   levelVal: undefined,
   prettyPrint: false,

test/timestamp.test.js

@@ -5,11 +5,12 @@ var pino = require('../')
 var sink = require('./helper').sink
 
 test('pino exposes standard time functions', function (t) {
-  t.plan(4)
+  t.plan(5)
   t.ok(pino.stdTimeFunctions)
   t.ok(pino.stdTimeFunctions.epochTime)
   t.ok(pino.stdTimeFunctions.unixTime)
   t.ok(pino.stdTimeFunctions.nullTime)
+  t.ok(pino.stdTimeFunctions.utcTime)
 })
 
 test('pino accepts external time functions', function (t) {