Merge pull request #91727 from RandomShaper/cmd_queue_prealloc

`CommandQueueMT`: Pre-allocate memory to avoid a bunch of allocations at startup

core/templates/command_queue_mt.cpp

@@ -42,6 +42,7 @@ void CommandQueueMT::unlock() {
 }
 
 CommandQueueMT::CommandQueueMT() {
+	command_mem.reserve(DEFAULT_COMMAND_MEM_SIZE_KB * 1024);
 }
 
 CommandQueueMT::~CommandQueueMT() {

core/templates/command_queue_mt.h

@@ -325,9 +325,7 @@ class CommandQueueMT {
 
 	/***** BASE *******/
 
-	enum {
-		DEFAULT_COMMAND_MEM_SIZE_KB = 256,
-	};
+	static const uint32_t DEFAULT_COMMAND_MEM_SIZE_KB = 64;
 
 	BinaryMutex mutex;
 	LocalVector<uint8_t> command_mem;