使用delegate时产生的GC

public delegate void Del();

void Fun()

{

}

void TestDelegete()

{

    Del d = Fun;

}

这几行代码，在调用TestDelegete()时总会产生104B的GC，而由于各种原因这个方法是需要被调用很多次的。问下这个GC能够被减少或者避免么？

• 
  

Mono 对象可以用GC，Unity的对象有自己的处理规则，不适用GC处理；

话说实在是要停止或减少GC的话，可以尝试下面的办法：

using UnityEngine;

using System.Collections.Generic;

using System;

using System.Runtime.InteropServices;

public class gc_manager : MonoBehaviour {

    [DllImport("kernel32.dll", CharSet=CharSet.Auto)]

    static extern IntPtr GetModuleHandle(string lpModuleName);

    [DllImport("kernel32.dll", CharSet=CharSet.Ansi, ExactSpelling=true, SetLastError=true)]

    static extern IntPtr GetProcAddress(IntPtr hModule, string procName);

    static Action mono_gc_disable;

    static Action mono_gc_enable;

    static bool mono_gc_loaded=false;

    static bool load_mono_gc() {

        if (mono_gc_loaded) {

            return true;

        }

        unsafe {

            //extracted from mono.pdb using dbh.exe (using the "enum *!*mono_gc_*" command)

            //note: for the 64 bit editor, there is only a 64 bit version of mono.pdb, so you need to also download the 32 bit editor to update this for 32 bit standalone builds

            // (you also need to decide which version of the dll to use; this can be done by comparing the mono_gc_collect offset with the two offsets for the 32 bit and 64 bit dlls)

            int offset_mono_gc_disable=0x1b100;

            int offset_mono_gc_enable=0x1b108;

            int offset_mono_gc_collect=0x1b0b4; //this is used to verify that mono.dll hasn't changed

            IntPtr mono_module=GetModuleHandle("mono.dll");

            IntPtr func_ptr_mono_gc_collect=new IntPtr(mono_module.ToInt64()+offset_mono_gc_collect);

            IntPtr expected_func_ptr_mono_gc_collect=GetProcAddress(mono_module, "mono_gc_collect");

            if (func_ptr_mono_gc_collect!=expected_func_ptr_mono_gc_collect) {

                //if you see this error, you need to update the "offset_mono_gc_" variables above

                Debug.Log("Cannot load gc functions. Expected collect at "+ func_ptr_mono_gc_collect.ToInt64() +" Actual at "+ func_ptr_mono_gc_collect.ToInt64() +" Module root "+ mono_module.ToInt64());

                return false;

            }

            mono_gc_enable=(Action)Marshal.GetDelegateForFunctionPointer(new IntPtr(mono_module.ToInt64()+offset_mono_gc_enable), typeof(Action));

            mono_gc_disable=(Action)Marshal.GetDelegateForFunctionPointer(new IntPtr(mono_module.ToInt64()+offset_mono_gc_disable), typeof(Action));

        }

        mono_gc_loaded=true;

        return true;

    }

};

•