diff --git a/presto-native-execution/presto_cpp/main/common/Configs.cpp b/presto-native-execution/presto_cpp/main/common/Configs.cpp
index ddc720c98fce3..de72a90ebded9 100644
--- a/presto-native-execution/presto_cpp/main/common/Configs.cpp
+++ b/presto-native-execution/presto_cpp/main/common/Configs.cpp
@@ -154,6 +154,9 @@ SystemConfig::SystemConfig() {
           NONE_PROP(kSpillerSpillPath),
           NUM_PROP(kShutdownOnsetSec, 10),
           NUM_PROP(kSystemMemoryGb, 40),
+          STR_PROP(kSystemMemPushbackEnabled, "false"),
+          NUM_PROP(kSystemMemLimitGb, 55),
+          NUM_PROP(kSystemMemShrinkGb, 8),
           STR_PROP(kAsyncDataCacheEnabled, "true"),
           NUM_PROP(kAsyncCacheSsdGb, 0),
           NUM_PROP(kAsyncCacheSsdCheckpointGb, 0),
@@ -333,8 +336,20 @@ int32_t SystemConfig::shutdownOnsetSec() const {
   return optionalProperty<int32_t>(kShutdownOnsetSec).value();
 }
 
-int32_t SystemConfig::systemMemoryGb() const {
-  return optionalProperty<int32_t>(kSystemMemoryGb).value();
+uint32_t SystemConfig::systemMemoryGb() const {
+  return optionalProperty<uint32_t>(kSystemMemoryGb).value();
+}
+
+uint32_t SystemConfig::systemMemLimitGb() const {
+  return optionalProperty<uint32_t>(kSystemMemLimitGb).value();
+}
+
+uint32_t SystemConfig::systemMemShrinkGb() const {
+  return optionalProperty<uint32_t>(kSystemMemShrinkGb).value();
+}
+
+bool SystemConfig::systemMemPushbackEnabled() const {
+  return optionalProperty<bool>(kSystemMemPushbackEnabled).value();
 }
 
 uint64_t SystemConfig::asyncCacheSsdGb() const {
diff --git a/presto-native-execution/presto_cpp/main/common/Configs.h b/presto-native-execution/presto_cpp/main/common/Configs.h
index ae52394ec1276..001e12ceab03e 100644
--- a/presto-native-execution/presto_cpp/main/common/Configs.h
+++ b/presto-native-execution/presto_cpp/main/common/Configs.h
@@ -196,6 +196,20 @@ class SystemConfig : public ConfigBase {
   /// NOTE: the query memory capacity is enforced by memory arbitrator so that
   /// this config only applies if the memory arbitration has been enabled.
   static constexpr std::string_view kQueryMemoryGb{"query-memory-gb"};
+
+  /// If true, enable memory pushback when the server is under low memory
+  /// condition.
+  static constexpr std::string_view kSystemMemPushbackEnabled{
+      "system-mem-pushback-enabled"};
+  /// Specifies the system memory limit and triggers memory pushback if the
+  /// server memory usage exceeds this limit. This only applies if
+  /// 'system-mem-pushback-enabled' is true.
+  static constexpr std::string_view kSystemMemLimitGb{"system-mem-limit-gb"};
+  /// Specifies the memory to shrink when memory pushback is triggered to help
+  /// get the server out of low memory condition. This only applies if
+  /// 'system-mem-pushback-enabled' is true.
+  static constexpr std::string_view kSystemMemShrinkGb{"system-mem-shrink-gb"};
+
   static constexpr std::string_view kAsyncDataCacheEnabled{
       "async-data-cache-enabled"};
   static constexpr std::string_view kAsyncCacheSsdGb{"async-cache-ssd-gb"};
@@ -433,7 +447,13 @@ class SystemConfig : public ConfigBase {
 
   int32_t shutdownOnsetSec() const;
 
-  int32_t systemMemoryGb() const;
+  uint32_t systemMemoryGb() const;
+
+  bool systemMemPushbackEnabled() const;
+
+  uint32_t systemMemLimitGb() const;
+
+  uint32_t systemMemShrinkGb() const;
 
   bool asyncDataCacheEnabled() const;