Who has any documents that about PostgreSQL background processes?

Who has any documents that about PostgreSQL background processes?

I'd like to learn the detail about these background processes:

• postgres: logger process
• postgres: writer process
• postgres: wal writer process
• postgres: autovacuum launcher process
• postgres: archiver process
• postgres: stats collector pr开发者_开发百科ocess

A quick internet search turned up these documents, I find the first one very interesting:

• http://raghavt.blogspot.com/2011/04/postgresql-90-architecture.html
• http://cisc322.files.wordpress.com/2010/10/conceptual_architecture_of_postgresql.pdf
• http://vibhork.blogspot.com/2011/04/postgresqlpostgres-plus-advanced-server.html
• http://www.interdb.jp/pg/pgsql02.html
• https://www.slideshare.net/EnterpriseDB/overviewutilityprocesses-finalaug222013

Have you looked into the documentation? In particular the parts about server administration and the internals.

There additionally are some resources in the wiki, and not a year passes by without one of the core developers going through one or more of the points you're wondering about at a PG Conference.