diff --git a/src/base/net/stratum/Client.cpp b/src/base/net/stratum/Client.cpp
index 018f7a66..f785fbc2 100644
--- a/src/base/net/stratum/Client.cpp
+++ b/src/base/net/stratum/Client.cpp
@@ -181,6 +181,8 @@ int64_t xmrig::Client::send(const rapidjson::Value &obj)
 
 int64_t xmrig::Client::submit(const JobResult &result)
 {
+    if (m_rpcId.isNull()) return 0; // ignore leftout benchmark jobs
+
 #   ifndef XMRIG_PROXY_PROJECT
     if (result.clientId != m_rpcId || m_rpcId.isNull() || m_state != ConnectedState) {
         return -1;
diff --git a/src/config.json b/src/config.json
index e290c602..2232d563 100644
--- a/src/config.json
+++ b/src/config.json
@@ -28,7 +28,7 @@
         "huge-pages": true,
         "hw-aes": null,
         "priority": null,
-        "memory-pool": false,
+        "memory-pool": true,
         "yield": true,
         "max-threads-hint": 100,
         "asm": true,