Re: [PATCH 02/16] mm: vmstat: use s32 for vm_node_stat_diff in struct per_cpu_nodestat

[Christopher Lameter]

On Mon, 21 Oct 2019, Roman Gushchin wrote:

> Sp far I haven't noticed any regression on the set of workloads where I did test
> the patchset, but if you know any benchmark or realistic test which can affected
> by this check, I'll be happy to try.
>
> Also, less-than-word-sized operations can be slower on some platforms.

The main issue in the past was the cache footprint. Memory is slow.
Processors are fast.