linux-kernel - Re: [PATCH 3/5] tools/mm: Filter out timestamps for correct collation

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Message-ID: <4923f97e-8afd-37c7-42dc-0b2343e47396@suse.cz>
Date:   Tue, 17 Oct 2023 10:12:19 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Audra Mitchell <audra@...hat.com>, linux-mm@...ck.org
Cc:     raquini@...hat.com, akpm@...ux-foundation.org, djakov@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] tools/mm: Filter out timestamps for correct collation

On 10/13/23 21:03, Audra Mitchell wrote:
> With the introduction of allocation timestamps being included in page_owner
> output, each record becomes unique due to the timestamp nanosecond
> granularity. Remove the check in add_list that tries to collate each record
> during processing as the memcmp() is just additional overhead at this
> point.
> 
> Also keep the allocation timestamps, but allow collation to occur without
> consideration of the allocation timestamp except in the case were
> allocation timestamps are requested by the user (the -a option).
> 
> Signed-off-by: Audra Mitchell <audra@...hat.com>

Acked-by: Vlastimil Babka <vbabka@...e.cz>