Messages in this thread | | | From | William Kucharski <> | Subject | Re: [PATCH v3] mm: add thp_utilization metrics to /proc/thp_utilization | Date | Fri, 5 Aug 2022 20:28:19 +0000 |
| |
> 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.
| |