I've been debugging a sporadic high IO wait time very recently, and we ended up tuning vm.dirty_ratio and vm.dirty_background_ratio. I wonder whether those were

I've been debugging a sporadic high IO wait time very recently, and we ended up tuning vm.dirty_ratio and vm.dirty_background_ratio. I wonder whether those were already tuned from the very high % of ram default, or whether it could have any impact here.