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Date:   Wed, 1 Nov 2023 15:01:22 +0100
From:   Michal Hocko <mhocko@suse.com>
To:     "Huang, Ying" <ying.huang@intel.com>
Cc:     Johannes Weiner <hannes@cmpxchg.org>,
        Gregory Price <gourry.memverge@gmail.com>,
        linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org,
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        aneesh.kumar@linux.ibm.com, weixugc@google.com, apopple@nvidia.com,
        tim.c.chen@intel.com, dave.hansen@intel.com, shy828301@gmail.com,
        gregkh@linuxfoundation.org, rafael@kernel.org,
        Gregory Price <gregory.price@memverge.com>
Subject: Re: [RFC PATCH v3 0/4] Node Weights and Weighted Interleave
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On Wed 01-11-23 10:21:47, Huang, Ying wrote:
> Michal Hocko <mhocko@suse.com> writes:
[...]
> > Well, I am not convinced about that TBH. Sure it is probably a good fit
> > for this specific CXL usecase but it just doesn't fit into many others I
> > can think of - e.g. proportional use of those tiers based on the
> > workload - you get what you pay for.
> 
> For "pay", per my understanding, we need some cgroup based
> per-memory-tier (or per-node) usage limit.  The following patchset is
> the first step for that.
> 
> https://lore.kernel.org/linux-mm/cover.1655242024.git.tim.c.chen@linux.intel.com/

Why do we need a sysfs interface if there are plans for cgroup API?

-- 
Michal Hocko
SUSE Labs