lkml.org 
[lkml]   [2022]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v3] mm: add thp_utilization metrics to /proc/thp_utilization
Date

> On Aug 5, 2022, at 12:40, alexlzhu@fb.com wrote:
>
> From: Alexander Zhu <alexlzhu@fb.com>
>
> This change introduces a tool that scans through all of physical
> memory for anonymous THPs and groups them into buckets based
> on utilization.

Out of curiosity, do you have any statistics on how much of a performance impact scanning may have?

We've reached the point where we've finally been able to show previous admonitions to not enable THP due to a negative performance impact no longer hold true, and I'd hate to see systems on which enabling THP now would cause a performance hit due to this scanner.
\
 
 \ /
  Last update: 2022-08-05 22:29    [W:0.128 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site