Re: effective_io_concurrency

[Ron <ronljohnsonjr@xxxxxxxxx>]

    On 1/19/22 11:40 AM, Wells Oliver wrote:

Hi all-- I notice in the default PG 13 settings for Postgres on RDS, effective_io_concurrency is empty, and doing a "show effective_io_concurrency" also shows an empty value-- what's the effect of this? That PG assumes 0 for the setting?

    https://www.postgresql.org/docs/13/runtime-config-resource.html
    
    "The allowed range is 1 to 1000, or zero to disable issuance of
      asynchronous I/O requests. Currently, this setting only
    affects bitmap heap scans."

--

Wells Oliver
wells.oliver@xxxxxxxxx

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