My GIS performance impact of Meltdown and Spectre patches
When I saw performance regression few days ago of Meltdown and Spectre patch from cpu conception problem, I would like to perform some basic test to understand if it could slow down my process. For those who don't know, here : a postgres article about performance regression : https://www.postgresql.org/message-id/20180102222354.qikjmf7dvnjgbkxe@alap3.anarazel.de Since some users finished to make benchmark with Meltdown and Spectre patch, I will not test it on my computer. How to test ? First, I tested it on Archlinux based distribution named Manjaro Linux. To know if patch is applied to my kernel, I just run this command : $ cat /proc/cpuinfo | grep cpu_insecure Which reports this : bugs : cpu_insecure bugs : cpu_insecure bugs : cpu_insecure bugs : cpu_insecure bugs : ...