bench: Simplify duration arguments to benchmarks

For throughput benchmarks, run with just 5s durations rather than 1s and 3s.

For startup benchmark, run with just a single 1s duration, since it's very
consistent anyway.

benchmark/fs/readfile.js

@@ -8,7 +8,7 @@ var filename = path.resolve(__dirname, '.removeme-benchmark-garbage');
 var fs = require('fs');
 
 var bench = common.createBenchmark(main, {
-  dur: [1, 3],
+  dur: [5],
   len: [1024, 16 * 1024 * 1024],
   concurrent: [1, 10]
 });

benchmark/fs/write-stream-throughput.js

@@ -6,7 +6,7 @@ var filename = path.resolve(__dirname, '.removeme-benchmark-garbage');
 var fs = require('fs');
 
 var bench = common.createBenchmark(main, {
-  dur: [1, 3],
+  dur: [5],
   type: ['buf', 'asc', 'utf'],
   size: [2, 1024, 65535, 1024 * 1024]
 });

benchmark/misc/startup.js

@@ -7,7 +7,7 @@ var i = 0;
 var start;
 
 var bench = common.createBenchmark(startNode, {
-  dur: [1, 3]
+  dur: [1]
 });
 
 function startNode(conf) {

benchmark/net/net-c2s.js

@@ -6,7 +6,7 @@ var PORT = common.PORT;
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5],
 });
 
 var dur;

benchmark/net/net-pipe.js

@@ -6,7 +6,7 @@ var PORT = common.PORT;
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5],
 });
 
 var dur;

benchmark/net/net-s2c.js

@@ -6,7 +6,7 @@ var PORT = common.PORT;
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5]
 });
 
 var dur;

benchmark/net/tcp-raw-c2s.js

@@ -9,7 +9,7 @@ var common = require('../common.js');
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5]
 });
 
 var TCP = process.binding('tcp_wrap').TCP;

benchmark/net/tcp-raw-pipe.js

@@ -9,7 +9,7 @@ var common = require('../common.js');
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5]
 });
 
 var TCP = process.binding('tcp_wrap').TCP;

benchmark/net/tcp-raw-s2c.js

@@ -9,7 +9,7 @@ var common = require('../common.js');
 var bench = common.createBenchmark(main, {
   len: [102400, 1024 * 1024 * 16],
   type: ['utf', 'asc', 'buf'],
-  dur: [1, 3],
+  dur: [5]
 });
 
 var TCP = process.binding('tcp_wrap').TCP;

benchmark/tls/throughput.js

@@ -1,6 +1,6 @@
 var common = require('../common.js');
 var bench = common.createBenchmark(main, {
-  dur: [1, 3],
+  dur: [5],
   type: ['buf', 'asc', 'utf'],
   size: [2, 1024, 1024 * 1024]
 });

benchmark/tls/tls-connect.js

@@ -6,7 +6,7 @@ var assert = require('assert'),
 var common = require('../common.js');
 var bench = common.createBenchmark(main, {
   concurrency: [1, 10],
-  dur: [1, 3]
+  dur: [5]
 });
 
 var clientConn = 0;