Hi, I had a performance test in another environment. The steps, setup, and postgresql.conf of the test are same as the ones sent by me on Feb 17 [1], except the following items:
# Setup - Distro: Red Hat Enterprise Linux release 8.2 (Ootpa) - C compiler: gcc-8.3.1-5.el8.x86_64 - libc: glibc-2.28-101.el8.x86_64 - Linux kernel: kernel-4.18.0-193.el8.x86_64 - PMDK: libpmem-1.6.1-1.el8.x86_64, libpmem-devel-1.6.1-1.el8.x86_64 See the attached figure for the results. In short, the v5 non-volatile WAL buffer got better performance than the original (non-patched) one. Regards, [1] https://www.postgresql.org/message-id/caownp3ofofosftmeikqcbmp0ywdjn0kvb4ka_0tj+urq7dt...@mail.gmail.com -- Takashi Menjo <takashi.me...@gmail.com>
