pgfincore外部OS缓存安装

su - root

cd /opt/soft_bak
tar -zxvf pgfincore-1.0.gz

cd pgfincore-b2b53de
export PATH=/opt/pgsql963/bin:$PATH
which pg_config
gmake clean
gmake
gmake install

psql -h 127.0.0.1 -p 2000 -U postgres postgres
create extension pgfincore
\df pgfad*
create table user_info(id int primary key, info text, crt_time timestamp);
insert into user_info select generate_series(1,500000), md5(random()::text), clock_timestamp();
select pg_total_relation_size('user_info');
select pg_total_relation_size('user_info')/1024/1024 MB

pgbench测试脚本
vi test.sql
\set id random(1,1000000)
select * from user_info where id=:id;
pgbench -M prepared -n -r -f test.sql -c 16 -j 4 -T 10 postgres
select pgfadvise_willneed('user_info'::regclass);
select pgfadvise_willneed('user_info_pkey'::regclass);