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| -rw-r--r-- | src/node/examples/perf_test.js | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/node/examples/perf_test.js b/src/node/examples/perf_test.js new file mode 100644 index 0000000000..379b14e000 --- /dev/null +++ b/src/node/examples/perf_test.js @@ -0,0 +1,104 @@ +/* + * + * Copyright 2014, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +var grpc = require('..'); +var testProto = grpc.load(__dirname + '/../interop/test.proto').grpc.testing; +var _ = require('underscore'); +var interop_server = require('../interop/interop_server.js'); + +function runTest(iterations, callback) { + var testServer = interop_server.getServer(0, false); + testServer.server.listen(); + var client = new testProto.TestService('localhost:' + testServer.port); + + function runIterations(finish) { + var start = process.hrtime(); + var intervals = []; + var pending = iterations; + function next(i) { + if (i >= iterations) { + testServer.server.shutdown(); + var totalDiff = process.hrtime(start); + finish({ + total: totalDiff[0] * 1000000 + totalDiff[1] / 1000, + intervals: intervals + }); + } else{ + var deadline = new Date(); + deadline.setSeconds(deadline.getSeconds() + 3); + var startTime = process.hrtime(); + client.emptyCall({}, function(err, resp) { + var timeDiff = process.hrtime(startTime); + intervals[i] = timeDiff[0] * 1000000 + timeDiff[1] / 1000; + next(i+1); + }, {}, deadline); + } + } + next(0); + } + + function warmUp(num) { + var pending = num; + for (var i = 0; i < num; i++) { + (function(i) { + client.emptyCall({}, function(err, resp) { + pending--; + if (pending === 0) { + runIterations(callback); + } + }); + })(i); + } + } + warmUp(100); +} + +if (require.main === module) { + var count; + if (process.argv.length >= 3) { + count = process.argv[2]; + } else { + count = 100; + } + runTest(count, function(results) { + console.log('count:', count); + console.log('total time:', results.total, 'us'); + console.log('min latency:', _.min(results.intervals), 'us'); + console.log('max latency:', _.max(results.intervals), 'us'); + console.log('average latency:', _.reduce(results.intervals, function(a, b){ + return a+b; + }) / count, 'us'); + }); +} + +module.exports = runTest; |