[SPDK] vhost(reactor) takes too much memory

I'm trying to deploy vhost with qemu.
however when I trying to start vhost, 
it occurs that the reactor takes too much memory.
I'm using hugepage and the reactor took 75GB huge pages, the total virtual memory is up to 128GB which is all memory located on that numa node.
I don't understand how this happened.
SPDK version is 22.05, OS is fedora33.
could someone please help me?
Thank you.