backend/test_perf.py

import time
from app.services.data_service import data_service

start = time.time()
data_service.get_validation_report(sample_size=100)
print(f"Validation time 1: {time.time() - start:.2f}s")

start = time.time()
data_service.get_validation_report(sample_size=100)
print(f"Validation time 2: {time.time() - start:.2f}s")