Re: [RFC PATCH v1 00/13] lru_lock scalability

[Andrew Morton]

On Wed, 31 Jan 2018 18:04:00 -0500 daniel.m.jordan@xxxxxxxxxx wrote:

> lru_lock, a per-node* spinlock that protects an LRU list, is one of the
> hottest locks in the kernel.  On some workloads on large machines, it
> shows up at the top of lock_stat.

Do you have details on which callsites are causing the problem?  That
would permit us to consider other approaches, perhaps.