refactor(memory_test): Increase connections number

Signed-off-by: Stepan Bagritsevich <stefan@dragonflydb.io>

tests/dragonfly/memory_test.py

@@ -127,15 +127,15 @@ async def test_cache_eviction_with_rss_deny_oom(
     """
 
     max_memory = 256 * 1024 * 1024  # 256 MB
-    first_fill_size = int(0.2 * max_memory)  # 15% of max memory
-    second_fill_size = int(0.35 * max_memory)  # Another 20% of max memory
-    rss_increase_size = int(0.3 * max_memory)  # 30% of max memory
+    first_fill_size = int(0.25 * max_memory)  # 25% of max memory
+    second_fill_size = int(0.3 * max_memory)  # Another 35% of max memory
+    rss_increase_size = int(0.35 * max_memory)  # 30% of max memory
 
     key_size = 1024  # 1 mb
     num_keys_first_fill = first_fill_size // key_size
     num_keys_second_fill = second_fill_size // key_size
 
-    # Step 1: Fill 15% of max memory using DEBUG POPULATE
+    # Fill 25% of max memory using DEBUG POPULATE
     await async_client.execute_command("DEBUG", "POPULATE", num_keys_first_fill, "key", key_size)
 
     await asyncio.sleep(1)  # Wait for RSS heartbeat
@@ -145,10 +145,10 @@ async def test_cache_eviction_with_rss_deny_oom(
     rss_before_connections = info_before_connections["used_memory_rss"]
     logging.info(f"RSS after creating temporary large keys: {rss_before_connections}")
 
-    # Step 2: Increase RSS memory by 30% of max memory
+    # Increase RSS memory by 35% of max memory
     # We can simulate RSS increase by creating new connections
     # Estimate memory per connection
-    estimated_connection_memory = 20 * 1024  # 20 KB per connection
+    estimated_connection_memory = 10 * 1024  # 10 KB per connection
     num_connections = rss_increase_size // estimated_connection_memory
     connections = []
     for _ in range(num_connections):
@@ -165,12 +165,12 @@ async def test_cache_eviction_with_rss_deny_oom(
 
     assert rss_after_connections > rss_before_connections, "RSS memory should have increased."
 
-    # Step 3: Attempt to insert another 30% of data
+    # Attempt to insert another 30% of data
     await async_client.execute_command("DEBUG", "POPULATE", num_keys_second_fill, "key2", key_size)
 
     await asyncio.sleep(1)  # Wait for RSS heartbeat
 
-    # Step 4: Check that eviction has occurred
+    # Check that eviction has occurred
     info = await async_client.info("stats")
     assert info.get("evicted_keys", 0) > 0, "Eviction should have occurred due to memory pressure."