Re: [HACKERS] autovacuum can't keep up, bloat just continues to rise

On 07/19/2017 03:29 PM, Tom Lane wrote:
> "Joshua D. Drake" <jd@commandprompt.com> writes:
>> At PGConf US Philly last week I was talking with Jim and Jan about
>> performance. One of the items that came up is that PostgreSQL can't run
>> full throttle for long periods of time. The long and short is that no
>> matter what, autovacuum can't keep up. This is what I have done:
>
> Try reducing autovacuum_vacuum_cost_delay more, and/or increasing
> autovacuum_vacuum_cost_limit.

I would try autovacuum_vacuum_cost_delay = 0
and for any tables > 1 million rows: autovacuum_vacuum_scale_factor: 0 autovacuum_vacuum_threshold: 100000 (perhaps
evensmaller) 

Joe

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