Hello All, Attached is a patch to provide an option to disable WAL recycling. We have found that this can help performance by eliminating read-modify-write behavior on old WAL files that are no longer resident in the filesystem cache. The is a lot more detail on the background of the motivation for this in the following thread.
https://www.postgresql.org/message-id/flat/CACukRjO7DJvub8e2AijOayj8BfKK3XXBTwu3KKARiTr67M3E3w%40mail.gmail.com#cacukrjo7djvub8e2aijoayj8bfkk3xxbtwu3kkaritr67m3...@mail.gmail.com A similar change has been tested against our 9.6 branch that we're currently running, but the attached patch is against master. Thanks, Jerry
0001-option-to-disable-WAL-recycling.patch
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