My doubt is previously the same are the parameters which are reflected as of now. Then what is the point in considering altering those values. Correct me if I am wrong.
You can use pg_xlogdump to inspect those logs and see which relations/transactions are generating so much WAL.
Then you can hunt within your apps which code is responsible for that traffic, or whether it in fact is autovacuum.
Hi Claudio,
Is pg_xlogdump available for postgres 9.1, as my current production is postgres 9.1.
Yes investigated in that area, found DML's and also autovacuum statements for some relations. And the DML's are the same before this huge WAL traffic and normal WAL traffic.