Menjo-san,
On Mon, Feb 17, 2020 at 1:13 PM Takashi Menjo
<takashi.menjou.vg@hco.ntt.co.jp> wrote:
> I applied my patchset that mmap()-s WAL segments as WAL buffers to refs/tags/REL_12_0, and measured and analyzed its
performancewith pgbench. Roughly speaking, When I used *SSD and ext4* to store WAL, it was "obviously worse" than the
originalREL_12_0.
I apologize for not having any opinion on the patches themselves, but
let me point out that it's better to base these patches on HEAD
(master branch) than REL_12_0, because all new code is committed to
the master branch, whereas stable branches such as REL_12_0 only
receive bug fixes. Do you have any specific reason to be working on
REL_12_0?
Thanks,
Amit
