osm-p2p-db-benchmark

Benchmarking suite for osm-p2p-db.

Breaks down various osm-p2p-db operations by time spent in LevelDB, chunk store, and application logic.

This makes it easy to swap in various Level and chunk-store backends into osm-p2p-db and see what performance differences they make.

Example

var benchmark = require('osm-p2p-db-benchmark')
var level = require('level')
var fdchunk = require('fd-chunk-store')

benchmark(level, fdchunk, function (err, res) {
  console.log(err ? err : res)
})

outputs

[ { name: 'insert',    total: 3556,  app: 2417, level: 1139, chunk: 0 },
  { name: 'index',     total: 3069,  app: 2646, level: 0,    chunk: 423 },
  { name: 'query',     total: 1911,  app: 1325, level: 586,  chunk: 0 },
  { name: 'replicate', total: 8013,  app: 1679, level: 6049, chunk: 285 },
  { name: 'total',     total: 16549, app: 8067, level: 7774, chunk: 708 } ]

API

var benchmark = require('osm-p2p-db-benchmark')

benchmark.random(level, chunk[, opts], cb)

Generate a random dataset (uniform distribution of N nodes) and run the benchmarking suite with the Level backend level and abstract chunk store chunk. cb is called with (err, res), where res are the timing results shown in the above example output.

Valid opts include:

• n (Number): the number of nodes to insert to benchmark against

benchmark.db(dbPath, cb)

Use an exising osm-p2p database (directory with log, index, kdb), and run benchmarks against it. cb is called with (err, res), where res are the timing results shown in the above example output.

License

ISC