High mem usage

Hello all,

I have been monitoring our self hosted gitlab for a while, i have seen since upgrading to the latest (14.9.3) there is a massive spike in memory usage.

This seems to be relating to sidekiq and puma. So i modified the gitlab.rb to reduce the puma workers and sidekiq, however this seems to have made no affect.

The way the usage is stepping, is this a memory leak?