1 files changed, 19 insertions, 16 deletions

diff --git a/jstests/perf/v8_mapreduce.js b/jstests/perf/v8_mapreduce.js
index b98cdc5fc0d..7ff329c5284 100644
--- a/jstests/perf/v8_mapreduce.js
+++ b/jstests/perf/v8_mapreduce.js
@@ -2,20 +2,21 @@
 
 // Our server and client need to be running V8 and the host we are running on needs at least two
 // cores.  Update this if you are testing more than three threads in parallel.
-if (/V8/.test(interpreterVersion()) &&
-    db.runCommand({buildinfo:1}).javascriptEngine == "V8" &&
+if (/V8/.test(interpreterVersion()) && db.runCommand({buildinfo: 1}).javascriptEngine == "V8" &&
     db.hostInfo().system.numCores >= 2) {
-
     // function timeSingleThread
     // Description: Gathers data about how long it takes to run a given job
     // Args: job - job to run
     //       tid - thread id passed as an argument to the job, default 0
     // Returns: { threadStart : <time job started> , threadEnd : <time job completed> }
-    var timeSingleThread = function (job, tid) {
+    var timeSingleThread = function(job, tid) {
         var tid = tid || 0;
         var threadStart = new Date();
         job(tid);
-        return { "threadStart" : threadStart , "threadEnd" : new Date() };
+        return {
+            "threadStart": threadStart,
+            "threadEnd": new Date()
+        };
     };
 
     // function timeMultipleThreads
@@ -28,7 +29,7 @@ if (/V8/.test(interpreterVersion()) &&
     //     threadEnd : <time elapsed before thread completed work> } ,
     //     ...
     //     ]
-    var timeMultipleThreads = function (job, nthreads, stagger) {
+    var timeMultipleThreads = function(job, nthreads, stagger) {
         var i = 0;
         var threads = [];
 
@@ -59,7 +60,7 @@ if (/V8/.test(interpreterVersion()) &&
 
     // Display and analysis helper functions
 
-    var getLastCompletion = function (threadTimes) {
+    var getLastCompletion = function(threadTimes) {
         var lastCompletion = 0;
         for (var i = 0; i < threadTimes.length; i++) {
             lastCompletion = Math.max(lastCompletion, threadTimes[i].threadEnd);
@@ -71,14 +72,17 @@ if (/V8/.test(interpreterVersion()) &&
 
     db.v8_parallel_mr_src.drop();
 
-    for (j=0; j<100; j++) for (i=0; i<512; i++){ db.v8_parallel_mr_src.save({j:j, i:i});}
+    for (j = 0; j < 100; j++)
+        for (i = 0; i < 512; i++) {
+            db.v8_parallel_mr_src.save({j: j, i: i});
+        }
 
     db.getLastError();
 
-    var mrWorkFunction = function () {
+    var mrWorkFunction = function() {
 
         function verifyOutput(out) {
-            //printjson(out);
+            // printjson(out);
             assert.eq(out.counts.input, 51200, "input count is wrong");
             assert.eq(out.counts.emit, 51200, "emit count is wrong");
             assert.gt(out.counts.reduce, 99, "reduce count is wrong");
@@ -87,22 +91,21 @@ if (/V8/.test(interpreterVersion()) &&
 
         function map() {
             if (this.j % 2 == 0) {
-                emit(this.i, this.j*this.j);
-            }
-            else {
-                emit(this.i, this.j+this.j);
+                emit(this.i, this.j * this.j);
+            } else {
+                emit(this.i, this.j + this.j);
             }
         }
 
         function reduce(key, values) {
-            values_halved = values.map(function (value) {
+            values_halved = values.map(function(value) {
                 return value / 2;
             });
             values_halved_sum = Array.sum(values_halved);
             return values_halved_sum;
         }
 
-        var out = db.v8_parallel_mr_src.mapReduce(map, reduce, { out : "v8_parallel_mr_out" });
+        var out = db.v8_parallel_mr_src.mapReduce(map, reduce, {out: "v8_parallel_mr_out"});
         verifyOutput(out);
     };