是否需要CPU-GPU同步，如果写入和阅读发生在MTLBuffer的不同存储页面上？
我正在使用金属中的mtlbuffer，通过将几个内存页面（使用vm_allocate）与
device.makebuffer（bytesnocopy：length：genthent：option：delectlocator：）分配。
我用CPU编写缓冲区，而GPU仅读取它。我知道通常需要在CPU和GPU之间同步。
但是，我对MTLBuffer写入（由CPU）中的位置有更多的了解，并在我的情况下（由GPU）读取（在我的情况下，写入与读取（在给定的时间间隔）中不同。
我的问题：即使编写和读取的相关数据在不同的内存页面上（但在同一mtlbuffer中），我是否需要在CPU和GPU之间进行同步？直觉上，我想不认为，但是mtlbuffer有点不透明，我真的不知道GPU实际上/对mtlbuffer的处理/需求是什么样的。
附加信息：这是iOS的问题，共享了mtlstoragemode。
非常感谢您的帮助！
I am using an MTLBuffer in Metal that I created by allocating several memory pages (using vm_allocate) with
device.makeBuffer(bytesNoCopy:length:options:deallocator:).
I write the buffer with CPU and the GPU only reads it. I know that generally I need to synchronise between CPU and GPU.
However, I have more knowledge about where in the MTLBuffer write (by CPU) and read (by GPU) happens and in my case writing is into different memory pages than the read (in a given time interval).
My question: Do I need to sync between CPU and GPU even if the relevant data that is written and read are on different memory pages (but in the same MTLBuffer)? Intuitively, I would think not, but then MTLBuffer is a bit opaque and I don't really know what kind of processing/requirement the GPU actually does/has with the MTLBuffer.
Additional info: This is a question for iOS and MTLStorageMode is shared.
Thank you very much for help!
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假设使用mtlstoragemodemaned创建缓冲区，则可以使用该函数
Assuming the buffer was created with MTLStorageModeManaged, you can use the function didModifyRange to sync CPU to GPU for only a portion (a page for example) of the buffer.