AMD EPYC Seeing Nice Performance Improvements With PostgreSQL On Linux 5.11

[phoronix]

Phoronix: AMD EPYC Seeing Nice Performance Improvements With PostgreSQL On Linux 5.11

For those running PostgreSQL database servers (and potentially similar workloads) on AMD EPYC servers, Linux 5.11 is bringing a very nice Christmas gift in the form of better performance for at least some 2P server configurations...

http://www.phoronix.com/scan.php?page=news_item&px=AMD-EPYC-PostgreSQL-Linux-5.11

[microcode]

Wow, that is quite considerable.

[barti_ddu]

Nice, this is quite a measurable improvement. And thanks for the benchmark!

[f0rmat]

Great work. Too bad for the upper end AMD users that 5.11 is not an LTS kernel - unless there are backports.

[guspitts]

I am curious what the bisecting of the kernel will reveal. What changes brought such a nice improvement in performance?

[f0rmat]

I jus saw where the kernel just got updated to 10.2. 10.0 to 10.1 to 10.2 in such a short time. I wonder if it had anything to do with nvaert1986 comment here:

https://www.phoronix.com/forums/foru...-to-bugs/page4

According to http://www.tuxmachines.org/node/145712 it is a must upgrade.


"I'm announcing the release of the 5.10.2 kernel. All users of the 5.10 kernel series must upgrade. The updated 5.10.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.10.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kern...stable/linux-s... thanks, greg k-h"