Details
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Improvement
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Resolution: Won't Fix
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Major - P3
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None
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2.12.3
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None
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MBP, 16G RAM, Single instance MongoDB 2.6.1
Description
First populate a test collection:
for(var i=0;i<5000;i++) db.test.save(obj);
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// where obj is a rich document, avg size 8KB.
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When ran within Mongo shell:
Date.timeFunc(function(){
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for(var i=0;i<30;i++){ db.test.find().toArray() }
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})
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Total time used: 1996ms (30 queries)
Average time per query: 67ms
When ran in a standard java program:
DB db = mongoClient.getDB( "ceairdb" );
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DBCollection coll = db.getCollection("test");
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try {
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Date now = new Date();
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Date end = null;
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for(int k=0;k<30;k++){
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cursor = coll.find();
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cursor.toArray();
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}
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end = new Date();
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} finally {
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cursor.close();
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}
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Total time used: 8600 ms
Average time per query: 280 ms
Expected: Java drivers's performance should be comparable to shell version