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Print information about benchmark duration #53323

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18 changes: 16 additions & 2 deletions private/react-native-fantom/src/Benchmark.js
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Original file line number Diff line number Diff line change
Expand Up @@ -174,10 +174,16 @@ export function suite(
bench.add(task.name, task.fn, options);
}

if (!isTestOnly) {
console.log(`Running benchmark: ${suiteName}. Please wait.`);
}

const runStartTime = performance.now();

bench.runSync();

if (!isTestOnly) {
printBenchmarkResults(bench);
printBenchmarkResults(bench, runStartTime);
}

for (const verify of verifyFns) {
Expand Down Expand Up @@ -262,16 +268,24 @@ export function suite(
return suiteAPI;
}

function printBenchmarkResults(bench: Bench) {
function printBenchmarkResults(bench: Bench, runStartTime: number) {
const {fantomConfigSummary} = getConstants();
const benchmarkName =
(bench.name ?? 'Benchmark') +
(fantomConfigSummary ? ` (${fantomConfigSummary})` : '');

const runDuration = performance.now() - runStartTime;
const durationStr =
runDuration < 1000
? `${runDuration.toFixed(0)}ms`
: `${(runDuration / 1000).toFixed(0)}s`;

console.log('');
console.log(`### ${benchmarkName} ###`);
console.table(nullthrows(bench.table()));
console.log('');
console.log(`Total benchmark duration: ${durationStr}`);
console.log('');
}

function createBenchmarkResultsObject(
Expand Down
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