Hi @liukun4515,

Have a look at the jemalloc docs:

https://github.com/jemalloc/jemalloc/wiki/getting-started

You don't need to recompile, just start the process with eg.:

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2 my-libvips-program

@jcupitt

thanks for your response.

but in my case, we use the other language to call the libvips.
we only want to use the jemalloc when running the libvips code, and don't want to impact the other code.

in my OS, the by default memory allocator is glibc which will provide the basic memory allocator to other language.
i am worry about if change the allocator to jemalloc, it will bring other issue.

So i want to build the libvips from the source code and dynamic link the shared library to libvips .so.

Mixing memory allocators in a single executable is extremely dangerous, I think using jemalloc everywhere is much more likely to work. I would at least test the LD_PRELOAD approach first.