linux-kernel - Re: [RFC V2] mm/vmstat: Add events for HugeTLB migration

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Message-ID: <5cdfac2f-ca4c-3cd7-39af-ba942f483a21@oracle.com>
Date:   Thu, 1 Oct 2020 15:16:17 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Anshuman Khandual <anshuman.khandual@....com>, linux-mm@...ck.org
Cc:     Daniel Jordan <daniel.m.jordan@...cle.com>,
        Zi Yan <ziy@...dia.com>, John Hubbard <jhubbard@...dia.com>,
        Oscar Salvador <osalvador@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC V2] mm/vmstat: Add events for HugeTLB migration

On 9/29/20 11:00 PM, Anshuman Khandual wrote:
> Add following new vmstat events which will track HugeTLB page migration.
> 
> 1. HUGETLB_MIGRATION_SUCCESS
> 2. HUGETLB_MIGRATION_FAILURE
> 
> It follows the existing semantics to accommodate HugeTLB subpages in total
> page migration statistics. While here, this updates current trace event
> 'mm_migrate_pages' to accommodate now available HugeTLB based statistics.
> 
> Cc: Daniel Jordan <daniel.m.jordan@...cle.com>
> Cc: Zi Yan <ziy@...dia.com>
> Cc: John Hubbard <jhubbard@...dia.com>
> Cc: Mike Kravetz <mike.kravetz@...cle.com>
> Cc: Oscar Salvador <osalvador@...e.de>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: linux-mm@...ck.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>

Thanks,

Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>

-- 
Mike Kravetz