85 lines
2.1 KiB
JavaScript
Executable File
85 lines
2.1 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/*
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* Time `log.child(...)`.
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*
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* Getting 0.011ms on my Mac. For about 1000 req/s that means that the
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* `log.child` would be about 1% of the time handling that request.
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* Could do better. I.e. consider a hackish fast path.
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*
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* ...
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*
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* Added: `log.fastchild({...}, true)`. Use the `true` to assert that
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* the given options are just new fields (and no serializers).
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* Result: Another order of magnitude.
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*/
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var ben = require('./ben'); // npm install ben
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var Logger = require('../lib/bunyan');
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var log = new Logger({
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name: 'svc',
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streams: [
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{
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path: __dirname + '/timechild.log'
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},
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{
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stream: process.stdout
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}
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],
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serializers: {
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err: Logger.stdSerializers.err
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}
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});
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console.log('Time `log.child`:');
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var ms = ben(1e5, function () {
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var child = log.child();
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});
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console.log(' - adding no fields: %dms per iteration', ms);
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var ms = ben(1e5, function () {
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var child = log.child({a:1});
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});
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console.log(' - adding one field: %dms per iteration', ms);
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var ms = ben(1e5, function () {
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var child = log.child({a:1, b:2});
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});
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console.log(' - adding two fields: %dms per iteration', ms);
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function fooSerializer(obj) {
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return {bar: obj.bar};
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}
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var ms = ben(1e5, function () {
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var child = log.child({
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a: 1,
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serializers: {foo: fooSerializer}
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});
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});
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console.log(' - adding serializer and one field: %dms per iteration', ms);
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var ms = ben(1e5, function () {
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var child = log.child({
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a: 1,
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streams: [ {stream: process.stderr} ]
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});
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});
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console.log(' - adding a (stderr) stream and one field: %dms per iteration',
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ms);
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var ms = ben(1e6, function () {
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var child = log.child({}, true);
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});
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console.log(' - [fast] adding no fields: %dms per iteration', ms);
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var ms = ben(1e6, function () {
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var child = log.child({a:1}, true);
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});
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console.log(' - [fast] adding one field: %dms per iteration', ms);
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var ms = ben(1e6, function () {
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var child = log.child({a:1, b:2}, true);
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});
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console.log(' - [fast] adding two fields: %dms per iteration', ms);
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