Replacing malloc with tcmalloc?

Question

linux

Hello!
I replaced tcmalloc to run a specific application, I saw positive changes.
I wanted to replace the standard malloc with tcmalloc.
I read that to replace it, it is enough to specify the path to the new library in the LD_PRELOAD variable, but on my Debian 9 system, this variable is empty.
Is it possible to replace the standard malloc in the system with a non-standard memory manager?

Answer 1

There are only two options:
However, the doc says:
If you still want to use LD_PRELOAD throughout your system, then

echo "LD_PRELOAD=/usr/lib/libtcmalloc.so" >> /etc/environment