من نتيجة الاختبار إلى نقطة الاختناق

في هذا الدرس

find the first bottleneck with evidence.

الموضوعات المخطط لها

• Look at latency against load: where does the curve bend?
• Correlate with metrics: CPU, GC pauses, connection pool wait, DB query time, thread pool queues.
• Use profiles (flame graphs) and traces on the slow path.
• Change one thing at a time and retest.
• Name the first bottleneck; the next one only appears after you fix it.