blob: 35fd3590bc5931185c374ef53db3880be3a69ec3 [file] [log] [blame]
const REPORT_URL = 'http://localhost:8081/report_perf_data'
// Set this to enforce that the perf server must be up.
// Typically used for debugging.
const fail_on_no_perf = false;
function benchmarkAndReport(benchName, setupFn, testFn, teardownFn) {
try {
let ctx = {};
// warmup 3 times (arbitrary choice)
setupFn(ctx);
testFn(ctx);
testFn(ctx);
testFn(ctx);
teardownFn(ctx);
ctx = {};
setupFn(ctx);
let start = Date.now();
let now = start;
times = 0;
// See how many times we can do it in 100ms (arbitrary choice)
while (now - start < 100) {
testFn(ctx);
now = Date.now();
times++;
}
teardownFn(ctx);
// Try to make it go for 2 seconds (arbitrarily chosen)
// Since the pre-try took 100ms, multiply by 20 to get
// approximate tries in 2s (unless now - start >> 100 ms)
let goalTimes = times * 20;
ctx = {};
setupFn(ctx);
times = 0;
start = Date.now();
while (times < goalTimes) {
testFn(ctx);
times++;
}
const end = Date.now();
teardownFn(ctx);
const us = (end - start) * 1000 / times;
console.log(benchName, `${us} microseconds`)
return _report(us, benchName);
} catch(e) {
console.error('caught error', e);
return Promise.reject(e);
}
}
function _report(microseconds, benchName) {
return fetch(REPORT_URL, {
method: 'POST',
mode: 'no-cors',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
'bench_name': benchName,
'time_us': microseconds,
})
}).then(() => console.log(`Successfully reported ${benchName} to perf aggregator`));
}
function reportError(done) {
return (e) => {
console.log("Error with fetching. Likely could not connect to aggegator server", e.message);
if (fail_on_no_perf) {
expect(e).toBeUndefined();
}
done();
};
}