lkml.org 
[lkml]   [2022]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6 0/9] Multigenerational LRU Framework
On Tue, Jan 04, 2022 at 01:22:19PM -0700, Yu Zhao wrote:
> TLDR
> ====
> The current page reclaim is too expensive in terms of CPU usage and it
> often makes poor choices about what to evict. This patchset offers an
> alternative solution that is performant, versatile and
> straightforward.

<snipped>

> Summery
> =======
> The facts are:
> 1. The independent lab results and the real-world applications
> indicate substantial improvements; there are no known regressions.
> 2. Thrashing prevention, working set estimation and proactive reclaim
> work out of the box; there are no equivalent solutions.
> 3. There is a lot of new code; nobody has demonstrated smaller changes
> with similar effects.
>
> Our options, accordingly, are:
> 1. Given the amount of evidence, the reported improvements will likely
> materialize for a wide range of workloads.
> 2. Gauging the interest from the past discussions [14][15][16], the
> new features will likely be put to use for both personal computers
> and data centers.
> 3. Based on Google's track record, the new code will likely be well
> maintained in the long term. It'd be more difficult if not
> impossible to achieve similar effects on top of the existing
> design.

Hi Andrew, Linus,

Can you please take a look at this patchset and let me know if it's
5.17 material?

My goal is to get it merged asap so that users can reap the benefits
and I can push the sequels. Please examine the data provided -- I
think the unprecedented coverage and the magnitude of the improvements
warrant a green light.

Thanks!

\
 
 \ /
  Last update: 2022-01-04 21:31    [W:1.028 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site