mz_stream_mem_set_size performance issue

[zhuda]

Hi, I notice the mz_stream_mem_set_size performance dramatically slow down when writing a lot entries. In my test code I wrote out more than 650000 entries with mz_zip_writer_close_entry and it finally called this function.
After profiling my understanding is the buffer size is continuously out of usage, so the mz_stream_mem_set_size continuouslly allocate new buffer, copy old buffer values, deallocate the old buffer.
So question: Is there any API can control the memory management mechanism? Like allocate a larger buffer at very beginning? or allocate more spaces in each iterator?

[nmoinvaz]

There is only mz_stream_mem_set_grow_size which can control the increment of which the memory stream can grow. Also if you have a general solution that would benefit everybody I would be open to PRs.