create benchmark script.

main.py

@@ -0,0 +1,171 @@
+#!/usr/bin/env python3
+"""
+Redis vs PostgreSQL Read Benchmark - Fair Comparison
+"""
+import os
+import sys
+import time
+import random
+import logging
+import csv
+import redis
+import psycopg2
+from locust import User, task, events
+
+# ─── Logging ───
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(message)s',
+    handlers=[
+        logging.FileHandler('debug.log'),
+        logging.StreamHandler(sys.stdout)
+    ]
+)
+logger = logging.getLogger()
+
+# ─── Config ───
+TOTAL_RECORDS = 125_000_000
+PHONE_MIN = 100_000_000
+PHONE_MAX = 224_999_999
+
+REDIS_CONFIG = {
+    "host": "localhost",
+    "port": 6379,
+    "db": 0,
+    "decode_responses": False,
+    "socket_connect_timeout": 5,
+    "socket_timeout": 10,
+}
+
+POSTGRES_CONFIG = {
+    "host": "localhost",
+    "port": 5432,
+    "database": "numbers_db",
+    "user": "myuser",
+    "password": os.environ.get("POSTGRES_PASSWORD", "mypassword"),
+}
+
+
+# ─────────────────────────────────────────────
+# Redis Benchmark - با GET
+# ─────────────────────────────────────────────
+class RedisReadUser(User):
+    _pool = None
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        if RedisReadUser._pool is None:
+            RedisReadUser._pool = redis.ConnectionPool(**REDIS_CONFIG)
+        # هر User یک client اختصاصی از pool می‌گیره
+        self.client = redis.Redis(connection_pool=RedisReadUser._pool)
+
+    @task
+    def get_random(self):
+        phone_number = random.randint(PHONE_MIN, PHONE_MAX)
+        start = time.perf_counter()
+        try:
+            four_digit_code = self.client.get(phone_number)
+            elapsed = (time.perf_counter() - start) * 1000
+            if four_digit_code:
+                print(f"Redis | Phone: {phone_number} | Code: {four_digit_code} | Time: {elapsed:.3f}ms")
+            else:
+                print(f"Redis | Phone: {phone_number} | Code: NOT FOUND | Time: {elapsed:.3f}ms")
+            self.environment.events.request.fire(
+                request_type="GET",
+                name="redis_get",
+                response_time=elapsed,
+                response_length=len(four_digit_code) if four_digit_code else 0,
+                exception=None,
+                context={},
+            )
+        except Exception as e:
+            elapsed = (time.perf_counter() - start) * 1000
+            print(f"❌ Redis ERROR: {e} | Phone: {phone_number} | Time: {elapsed:.3f}ms")
+            self.environment.events.request.fire(
+                request_type="GET",
+                name="redis_get",
+                response_time=elapsed,
+                response_length=0,
+                exception=e,
+                context={},
+            )
+
+
+# ─────────────────────────────────────────────
+# PostgreSQL Benchmark - کانکشن اختصاصی برای هر User
+# ─────────────────────────────────────────────
+class PostgresReadUser(User):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        # ✅ هر User instance یک کانکشن اختصاصی دارد (مثل Redis)
+        self._connection = psycopg2.connect(
+            host=POSTGRES_CONFIG['host'],
+            port=POSTGRES_CONFIG['port'],
+            database=POSTGRES_CONFIG['database'],
+            user=POSTGRES_CONFIG['user'],
+            password=POSTGRES_CONFIG['password']
+        )
+        # تنظیمات برای عملکرد بهتر
+        self._connection.set_session(autocommit=True)
+
+    def on_stop(self):
+        """آزادسازی کانکشن هنگام توقف User"""
+        if self._connection is not None and not self._connection.closed:
+            self._connection.close()
+            self._connection = None
+
+    @task
+    def get_random(self):
+        phone_number = random.randint(PHONE_MIN, PHONE_MAX)
+        start = time.perf_counter()
+        try:
+            with self._connection.cursor() as cur:
+                cur.execute(
+                    "SELECT random_code FROM phone_numbers WHERE phone_number = %s",
+                    (phone_number,)
+                )
+                result = cur.fetchone()
+            elapsed = (time.perf_counter() - start) * 1000
+
+            if result:
+                random_code = result[0]
+                print(f"Postgres | Phone: {phone_number} | Code: {random_code} | Time: {elapsed:.3f}ms")
+            else:
+                print(f"Postgres | Phone: {phone_number} | Code: NOT FOUND | Time: {elapsed:.3f}ms")
+
+            self.environment.events.request.fire(
+                request_type="GET",
+                name="postgres_select",
+                response_time=elapsed,
+                response_length=4,
+                exception=None,
+                context={},
+            )
+        except Exception as e:
+            elapsed = (time.perf_counter() - start) * 1000
+            print(f"❌ Postgres ERROR: {e} | Phone: {phone_number} | Time: {elapsed:.3f}ms")
+            self.environment.events.request.fire(
+                request_type="GET",
+                name="postgres_select",
+                response_time=elapsed,
+                response_length=0,
+                exception=e,
+                context={},
+            )
+
+
+# ─────────────────────────────────────────────
+# اجرا
+# ─────────────────────────────────────────────
+if __name__ == "__main__":
+    print(f"""
+╔══════════════════════════════════════════════════════════════╗
+║        Redis vs PostgreSQL READ Benchmark (125M)             ║
+╠══════════════════════════════════════════════════════════════╣
+║                                                              ║
+║  Total Records: {TOTAL_RECORDS:,}                            ║
+║                                                              ║
+║                                                              ║
+║  ⚠️  Response Time = فقط زمان Query (بدون Connection)        ║
+╚══════════════════════════════════════════════════════════════╝
+    """)