From: Dave Hansen <dave.hansen@intel.com>
To: Yang Shi <shy828301@gmail.com>,
lsf-pc@lists.linux-foundation.org, Linux MM <linux-mm@kvack.org>,
Michal Hocko <mhocko@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Mel Gorman <mgorman@techsingularity.net>,
Dave Hansen <dave.hansen@linux.intel.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Subject: Re: [LSF/MM/BPF TOPIC] Memory Tiering discussion
Date: Tue, 28 Jan 2020 16:05:01 -0800 [thread overview]
Message-ID: <a2e6520f-8ba7-b000-71a9-3fa8ebae1d64@intel.com> (raw)
In-Reply-To: <CAHbLzkqOKtM684SGnCaa9ObHj082KenoPmRXvxMJ1UjcdvrhMQ@mail.gmail.com>
On 1/28/20 11:50 AM, Yang Shi wrote:
> So I would like to discuss how we should move forward, what pieces we
> still miss, what we can combine, etc.
Thanks for proposing this!
In addition to what you've mentioned, I'd really like to close in on
what folks think the first set of patches we _merge_ would look like.
More features than what we've got in the two sets? Less?
I'd also like to have to rehash a few discussions we've had inside
Intel. For instance, migrating (demoting) a page cache page is more
expensive than just discarding at reclaim time. But, it might be
expensive to recreate that page later if we do discard it. There
doesn't seem to be a single, obviously "right" answer.
next prev parent reply other threads:[~2020-01-29 0:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 19:50 Yang Shi
2020-01-29 0:05 ` Dave Hansen [this message]
2020-01-29 17:24 ` Yang Shi
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