linux-kernel - Re: [PATCH] alloc_tag: avoid mem alloc and iter reset when reading allocinfo

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Message-ID: <dgwvkt7l3m7sqgneoaxf2mvmgompob6i3gfvle6aziplcr4si3@pwnu7n3azuqb>
Date: Thu, 8 May 2025 13:26:23 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: David Wang <00107082@....com>
Cc: Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org, 
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] alloc_tag: avoid mem alloc and iter reset when reading
 allocinfo

On Fri, May 09, 2025 at 01:17:46AM +0800, David Wang wrote:
> 
> The impact of accumulated iterator rewinding could be observed via:
> 
> sudo strace -T -e read cat /proc/allocinfo  > /dev/null

Well, that sounds like it's worth fixing then :)