Postgresql background writer and checkpointer memory utilization in Linux server

Dear Team, 

How to reduce to take less memory checkpointer and background writer with faster database performance?

This two components parameters disable is recommended on production environments?

How to reduce pg_dum memory utilization and pg_dump is going take reserved database memory or differently it will take(including shared buffer memory or).

Server/database current configuration:

RAM:128gb

CPU:24

Database size:5TB

Max_wal_size=7Gb

Checkpoint_completion_target=0.9

Wal_buffers=-1

Shared_buffers=32GB

Temp_buffers=8mb

Work_mem=5GB

Effective io concurrency=300

Max worker process=24

Max parallel worker per gather =12

Max parallel  worker =24

Regards,

Mohammed Afsar 

Phone:+91 9676536225