levelgraph/benchmarks/sortSearch.js

A graph database for Node.js and the browser built on top of LevelUp

var level = require("level-test")()

  , levelgraph = require("../")

  , db = levelgraph(level())

  , startCounts = 100000
  , counts = startCounts

  , startTime
  , endTime

  , vertexes = ["a", "b"]

  , doWrites = function() {
      if(--counts === 0) {
        startTime = new Date();
        doReads();
        return;
      }

      var triple1 = {
            subject: vertexes[0],
            predicate: "p",
            object: vertexes[1]
          }

        , triple2 = {
            subject: vertexes[0],
            predicate: "a",
            object: "b" + counts % 2
          };

      vertexes.pop();
      vertexes.unshift("v" + counts);

      db.put([triple1, triple2], doWrites);
    }

  , doReads = function() {

      var stream = db.searchStream([{
        subject: db.v("a"),
        predicate: "p",
        object: db.v("b")
      }, {
        subject: db.v("a"),
        predicate: "a",
        object: "b0"
      }]);

      stream.on("data", function() {
        counts++;
      });
      stream.on("end", function() {
        endTime = new Date();
        var totalTime = endTime - startTime;
        console.log("total time", totalTime);
        console.log("total data", counts);
        console.log("join result/s", startCounts / totalTime * 1000);
        db.close();
      });
    };

doWrites();