[native]Add to config largest size class pages

presto-native-execution/presto_cpp/main/PrestoServer.cpp

@@ -717,6 +717,7 @@ void PrestoServer::initializeVeloxMemory() {
     options.memoryReclaimWaitMs = systemConfig->memoryReclaimWaitMs();
     options.globalArbitrationEnabled =
         systemConfig->memoryArbitratorGlobalArbitrationEnabled();
+    options.largestSizeClassPages = systemConfig->largestSizeClassPages();
     options.arbitrationStateCheckCb = velox::exec::memoryArbitrationStateCheck;
   }
   memory::initializeMemoryManager(options);

presto-native-execution/presto_cpp/main/common/Configs.cpp

@@ -193,6 +193,7 @@ SystemConfig::SystemConfig() {
           BOOL_PROP(kMemoryArbitratorGlobalArbitrationEnabled, false),
           NUM_PROP(kQueryMemoryGb, 38),
           NUM_PROP(kQueryReservedMemoryGb, 4),
+          NUM_PROP(kLargestSizeClassPages, 256),
           BOOL_PROP(kEnableVeloxTaskLogging, false),
           BOOL_PROP(kEnableVeloxExprSetLogging, false),
           NUM_PROP(kLocalShuffleMaxPartitionBytes, 268435456),
@@ -652,6 +653,10 @@ std::chrono::duration<double> SystemConfig::cacheVeloxTtlCheckInterval() const {
       optionalProperty(kCacheVeloxTtlCheckInterval).value());
 }
 
+int32_t SystemConfig::largestSizeClassPages() const {
+  return optionalProperty<int32_t>(kLargestSizeClassPages).value();
+}
+
 bool SystemConfig::enableRuntimeMetricsCollection() const {
   return optionalProperty<bool>(kEnableRuntimeMetricsCollection).value();
 }

presto-native-execution/presto_cpp/main/common/Configs.h

@@ -345,6 +345,12 @@ class SystemConfig : public ConfigBase {
       "cache.velox.ttl-check-interval"};
   static constexpr std::string_view kUseMmapAllocator{"use-mmap-allocator"};
 
+  /// Number of pages in largest size class in MallocAllocator. This is used to
+  /// optimize MmapAllocator performance for query workloads with large memory
+  /// allocation size.
+  static constexpr std::string_view kLargestSizeClassPages{
+      "largest-size-class-pages"};
+
   static constexpr std::string_view kEnableRuntimeMetricsCollection{
       "runtime-metrics-collection-enabled"};
 
@@ -740,6 +746,8 @@ class SystemConfig : public ConfigBase {
 
   std::chrono::duration<double> cacheVeloxTtlCheckInterval() const;
 
+  int32_t largestSizeClassPages() const;
+
   bool enableRuntimeMetricsCollection() const;
 
   bool prestoNativeSidecar() const;