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From:   Shakeel Butt <shakeelb@google.com>
Date:   Wed, 18 May 2022 08:09:55 -0700
Message-ID: <CALvZod4XdLTXhcKrV0nRK5PqdMt4+y4qGzfUdZfHUuwWHxU2tA@mail.gmail.com>
Subject: Re: [PATCH v3] tracing: add 'accounted' entry into output of
 allocation tracepoints
To:     Vasily Averin <vvs@openvz.org>
Cc:     Steven Rostedt <rostedt@goodmis.org>,
        Roman Gushchin <roman.gushchin@linux.dev>,
        Vlastimil Babka <vbabka@suse.cz>,
        Matthew Wilcox <willy@infradead.org>,
        Hyeonggon Yoo <42.hyeyoo@gmail.com>,
        Muchun Song <songmuchun@bytedance.com>, kernel@openvz.org,
        LKML <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Linux MM <linux-mm@kvack.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>,
        Christoph Lameter <cl@linux.com>,
        Michal Hocko <mhocko@suse.com>
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On Tue, May 17, 2022 at 11:24 PM Vasily Averin <vvs@openvz.org> wrote:
>
> Slab caches marked with SLAB_ACCOUNT force accounting for every
> allocation from this cache even if __GFP_ACCOUNT flag is not passed.
> Unfortunately, at the moment this flag is not visible in ftrace output,
> and this makes it difficult to analyze the accounted allocations.
>
> This patch adds boolean "allocated" entry into trace output,
> and set it to 'true' for calls used __GFP_ACCOUNT flag and
> for allocations from caches marked with SLAB_ACCOUNT.
>
> Signed-off-by: Vasily Averin <vvs@openvz.org>

Acked-by: Shakeel Butt <shakeelb@google.com>