diff --git a/src/App.cpp b/src/App.cpp
index 01c50594..681fd0db 100644
--- a/src/App.cpp
+++ b/src/App.cpp
@@ -90,6 +90,9 @@ int xmrig::App::exec()
     m_controller->config()->benchmark().set_controller(m_controller);
 
     if (m_controller->config()->benchmark().isNewBenchRun() || m_controller->config()->isRebenchAlgo()) {
+        if (m_controller->config()->isShouldSave()) {
+            m_controller->config()->save();
+        }
         m_controller->config()->benchmark().start();
     } else {
         m_controller->start();
diff --git a/src/core/MoBenchmark.cpp b/src/core/MoBenchmark.cpp
index c60976d6..e433783f 100644
--- a/src/core/MoBenchmark.cpp
+++ b/src/core/MoBenchmark.cpp
@@ -77,6 +77,7 @@ rapidjson::Value MoBenchmark::toJSON(rapidjson::Document &doc) const
     Value obj(kObjectType);
 
     for (const auto &a : m_controller->miner()->algorithms()) {
+        if (algo_perf[a.id()] == 0.0f) continue;
         obj.AddMember(StringRef(a.shortName()), algo_perf[a.id()], allocator);
     }