[PATCH 0/2] mm/ksm: calculate ksm_process_profit more accurately

Longlong Xia posted 2 patches 6 months, 2 weeks ago
Documentation/admin-guide/mm/ksm.rst          |  6 ++---
Documentation/filesystems/proc.rst            |  6 ++---
.../translations/zh_CN/admin-guide/mm/ksm.rst |  8 +++----
.../translations/zh_TW/admin-guide/mm/ksm.rst |  8 +++----
fs/proc/base.c                                | 10 ++++-----
include/linux/mm_types.h                      |  2 +-
mm/ksm.c                                      | 22 ++++++++-----------
.../selftests/mm/ksm_functional_tests.c       | 10 ++++-----
8 files changed, 34 insertions(+), 38 deletions(-)
[PATCH 0/2] mm/ksm: calculate ksm_process_profit more accurately
Posted by Longlong Xia 6 months, 2 weeks ago
During the KSM testing, it was observed that the sum of KSM profits 
for each process does not equal the general_profit.

The reason is general_profit_show() only considers ksm_pages_sharing,
whereas ksm_process_profit() accounts for both ksm_pages_sharing
and ksm_pages_shared for each process. By concentrating solely on 
ksm_pages_sharing, we can achieve a more accurate representation 
of actual profits.

Thanks for review and comments!

Longlong Xia (2):
  mm/ksm: calculate ksm_process_profit more accurately
  mm/ksm: Rename ksm_merging_pages to ksm_process_sharing

 Documentation/admin-guide/mm/ksm.rst          |  6 ++---
 Documentation/filesystems/proc.rst            |  6 ++---
 .../translations/zh_CN/admin-guide/mm/ksm.rst |  8 +++----
 .../translations/zh_TW/admin-guide/mm/ksm.rst |  8 +++----
 fs/proc/base.c                                | 10 ++++-----
 include/linux/mm_types.h                      |  2 +-
 mm/ksm.c                                      | 22 ++++++++-----------
 .../selftests/mm/ksm_functional_tests.c       | 10 ++++-----
 8 files changed, 34 insertions(+), 38 deletions(-)

-- 
2.43.0
Re: [PATCH 0/2] mm/ksm: calculate ksm_process_profit more accurately
Posted by David Hildenbrand 6 months ago
On 04.06.25 05:17, Longlong Xia wrote:

./scripts/get_maintainer.pl is helpful to identify all people worth 
CCing (such as, all maintainers).

> During the KSM testing, it was observed that the sum of KSM profits
> for each process does not equal the general_profit.
> 
> The reason is general_profit_show() only considers ksm_pages_sharing,
> whereas ksm_process_profit() accounts for both ksm_pages_sharing
> and ksm_pages_shared for each process. By concentrating solely on
> ksm_pages_sharing, we can achieve a more accurate representation
> of actual profits.
> 
> Thanks for review and comments!
> 
> Longlong Xia (2):
>    mm/ksm: calculate ksm_process_profit more accurately
>    mm/ksm: Rename ksm_merging_pages to ksm_process_sharing
> 
>   Documentation/admin-guide/mm/ksm.rst          |  6 ++---
>   Documentation/filesystems/proc.rst            |  6 ++---
>   .../translations/zh_CN/admin-guide/mm/ksm.rst |  8 +++----
>   .../translations/zh_TW/admin-guide/mm/ksm.rst |  8 +++----
>   fs/proc/base.c                                | 10 ++++-----
>   include/linux/mm_types.h                      |  2 +-
>   mm/ksm.c                                      | 22 ++++++++-----------
>   .../selftests/mm/ksm_functional_tests.c       | 10 ++++-----
>   8 files changed, 34 insertions(+), 38 deletions(-)
> 


-- 
Cheers,

David / dhildenb