node js 和 postgresql 降低 Cpu 使用率

Question

In Node js i'm using postgresql Database.while i am inserting bulk data in DB the CPU usage is getting 10% to 15%.

I want to reduce the cpu usage 5% to 6%.

function execute(count) {
    step(0);
    function step(i) {
        if (i < count) {
            client.query("INSERT INTO test1 (firstname, lastname) values($1, $2)", ['Ronald', 'McDonald'], function (err, respose) {
              //  console.log(respose);
                console.log("insert");
                step(++i);
            });
        }
        else {
            selectQuery();
        }
    }
}

Answer 1

PostgreSQL has a directive in its configuration file that can cache data

shared_buffers=3GB For 16 GB of RAM

This value is based on the amount of system RAM, which should be 20% of the RAM