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chore: Add SELECT benchmark coverage for read-path overhead (#45)

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Marcelo Soares <marcelo.me.soares@gmail.com>
This commit is contained in:
Copilot 2026-05-09 23:05:12 -03:00 • committed by GitHub
commit 83fbef8d2c
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GPG key ID: B5690EEEBB952194
2 changed files with 22 additions and 8 deletions
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16
benchmark/utils/benchmark.dart
View file

@ -11,7 +11,7 @@ import 'package:serverpod_offline_sync_test_client/serverpod_offline_sync_test_c
import 'tables.dart';
enum Operation { insert, update, delete }
enum Operation { select, insert, update, delete }
enum StorageStage { insert, update, delete }
@ -175,6 +175,14 @@ class TypesTableBenchmark extends AsyncBenchmarkBase {
}
}
Future<List<Types>> _selectTypes() async {
final rows = await Types.db.find(crdtEnabled ? _crdtSession! : _plainSession);
if (rows.length != rowCount) {
throw Exception('Rows count is ${rows.length} but expected $rowCount.');
}
return rows;
}
Future<void> _bootstrapDatabase() async {
await clearUserTables(_plainSession);
CrdtUserManager.clearCache();
@ -214,6 +222,9 @@ class TypesTableBenchmark extends AsyncBenchmarkBase {
_seededRows = [];
}
switch (operation) {
case Operation.select:
_seededRows = await _insertTypes(rowCount);
return;
case Operation.insert:
return;
case Operation.update:
@ -301,6 +312,9 @@ class TypesTableBenchmark extends AsyncBenchmarkBase {
@override
Future<void> run() async {
switch (operation) {
case Operation.select:
_lastRowsCount = (await _selectTypes()).length;
return;
case Operation.insert:
_seededRows = await _insertTypes(rowCount);
_lastRowsCount = _seededRows.length;

14
benchmark/utils/results.dart
View file

@ -4,16 +4,16 @@ import 'benchmark.dart';
import 'conversion.dart';
void printPerformanceImpact(
BenchmarkResults benchmarkResults, {
BenchmarkResults results, {
required int rowCount,
bool runningInCI = false,
}) {
print(
'${runningInCI ? '```' : ''}'
'\n📊 ${benchmarkResults.operation.name.toUpperCase()} performance impact:',
'\n📊 ${results.operation.name.toUpperCase()} performance impact:',
);
final baselineTime = benchmarkResults.baseline;
final crdtTime = benchmarkResults.crdt;
final baselineTime = results.baseline;
final crdtTime = results.crdt;
final runDelayUs = crdtTime - baselineTime;
final slowdown = runDelayUs / baselineTime * 100;
@ -25,9 +25,9 @@ void printPerformanceImpact(
print(' Time: $baselineDelay --> $crdtDelay ($runDelay)');
print(' CRDT overhead: ${formatter2.format(slowdown)}% slower');
print(
' Delay per ${benchmarkResults.operation.name}: $runDelayPerOperation',
);
if (results.operation != Operation.select) {
print(' Delay per ${results.operation.name}: $runDelayPerOperation');
}
if (runningInCI) print('```');
}