From: Stefan Roesch <shr@devkernel.io>
To: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: kernel-team@fb.com, linux-mm@kvack.org, riel@surriel.com,
mhocko@suse.com, david@redhat.com,
linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org,
akpm@linux-foundation.org
Subject: Re: [RFC PATCH v2 09/19] docs: document general_profit sysfs knob
Date: Wed, 15 Feb 2023 15:00:15 -0800 [thread overview]
Message-ID: <qvqw8rgyfsab.fsf@dev0134.prn3.facebook.com> (raw)
In-Reply-To: <e373069e-b68a-a924-d4be-742f7040a7e1@gmail.com>
Bagas Sanjaya <bagasdotme@gmail.com> writes:
> On 2/11/23 04:50, Stefan Roesch wrote:
>> Document general_progit knob.
>
> Book about Git :); it should have been general_profit.
>
Thanks, Fixed.
>> diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-ksm b/Documentation/ABI/testing/sysfs-kernel-mm-ksm
>> index d244674a9480..7768e90f7a8f 100644
>> --- a/Documentation/ABI/testing/sysfs-kernel-mm-ksm
>> +++ b/Documentation/ABI/testing/sysfs-kernel-mm-ksm
>> @@ -51,3 +51,11 @@ Description: Control merging pages across different NUMA nodes.
>>
>> When it is set to 0 only pages from the same node are merged,
>> otherwise pages from all nodes can be merged together (default).
>> +
>> +What: /sys/kernel/mm/ksm/general_profit
>> +Date: January 2023
>> +KernelVersion: 6.1
>> +Contact: Linux memory management mailing list <linux-mm@kvack.org>
>> +Description: Measure how effective KSM is.
>> + general_profit: how effective is KSM. The formula for the
>> + calculation is in Documentation/admin-guide/mm/ksm.rst.
>> diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst
>> index f160f9487a90..5c4daf44d79d 100644
>> --- a/Documentation/admin-guide/mm/ksm.rst
>> +++ b/Documentation/admin-guide/mm/ksm.rst
>> @@ -159,6 +159,8 @@ stable_node_chains_prune_millisecs
>>
>> The effectiveness of KSM and MADV_MERGEABLE is shown in ``/sys/kernel/mm/ksm/``:
>>
>> +general_profit
>> + how effective is KSM. The calculation is explained below.
>> pages_shared
>> how many shared pages are being used
>> pages_sharing
>
> LGTM, thanks!
>
> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
next prev parent reply other threads:[~2023-02-15 23:00 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 21:50 [RFC PATCH v2 00/19] mm: process/cgroup ksm support Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 01/19] mm: add new flag to enable ksm per process Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 02/19] mm: add flag to __ksm_enter Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 03/19] mm: add flag to __ksm_exit call Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 04/19] mm: invoke madvise for all vmas in scan_get_next_rmap_item Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 05/19] mm: support disabling of ksm for a process Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 06/19] mm: add new prctl option to get and set " Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 07/19] mm: split off pages_volatile function Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 08/19] mm: expose general_profit metric Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 09/19] docs: document general_profit sysfs knob Stefan Roesch
2023-02-11 8:17 ` Bagas Sanjaya
2023-02-15 23:00 ` Stefan Roesch [this message]
2023-02-10 21:50 ` [RFC PATCH v2 10/19] mm: calculate ksm process profit metric Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 11/19] mm: add ksm_merge_type() function Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 12/19] mm: expose ksm process profit metric in ksm_stat Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 13/19] mm: expose ksm merge type " Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 14/19] docs: document new procfs ksm knobs Stefan Roesch
2023-02-11 8:18 ` Bagas Sanjaya
2023-02-10 21:50 ` [RFC PATCH v2 15/19] tools: add new prctl flags to prctl in tools dir Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 16/19] selftests/vm: add KSM prctl merge test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 17/19] selftests/vm: add KSM get merge type test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 18/19] selftests/vm: add KSM fork test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 19/19] selftests/vm: add two functions for debugging merge outcome Stefan Roesch
2023-02-10 23:23 ` [RFC PATCH v2 00/19] mm: process/cgroup ksm support Matthew Wilcox
2023-02-11 2:41 ` Rik van Riel
2023-02-21 16:10 ` Johannes Weiner
2023-02-21 17:59 ` Stefan Roesch
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