From: Jianyue Wu <wujianyue000@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, cgroups@vger.kernel.org, hannes@cmpxchg.org,
mhocko@kernel.org, roman.gushchin@linux.dev,
shakeel.butt@linux.dev, muchun.song@linux.dev,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] mm: optimize stat output for 11% sys time reduce
Date: Sun, 11 Jan 2026 12:37:45 +0800 [thread overview]
Message-ID: <7210e5e0-2a93-4d3b-a564-85c0fe117ef5@gmail.com> (raw)
In-Reply-To: <20260110153342.7e689e794ce43a0a39c699fc@linux-foundation.org>
On 1/11/2026 7:33 AM, Andrew Morton wrote:
> On Sat, 10 Jan 2026 12:22:49 +0800 Jianyue Wu <wujianyue000@gmail.com> wrote:
>
>> Replace seq_printf/seq_buf_printf with lightweight helpers to avoid
>> printf parsing in memcg stats output.
>>
> I don't understand - your previous email led me to believe that the new
> BPF interface can be used to address this issue?
Yes, previously I think can directly use BPF interface to speedup. Later
I think maybe this is still needed, as some platform didn't have BPF
installed might still use these sysfs files.
next prev parent reply other threads:[~2026-01-11 4:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-08 9:37 [PATCH] " Jianyue Wu
2026-01-08 19:10 ` Andrew Morton
2026-01-08 22:49 ` Roman Gushchin
2026-01-08 23:56 ` Jiany Wu
2026-01-10 4:22 ` [PATCH v2] " Jianyue Wu
2026-01-10 23:33 ` Andrew Morton
2026-01-11 4:37 ` Jianyue Wu [this message]
2026-01-13 0:23 ` Shakeel Butt
2026-01-13 0:29 ` Shakeel Butt
2026-01-22 11:42 ` [PATCH v3] " Jianyue Wu
2026-01-22 17:13 ` Andrew Morton
2026-01-22 21:12 ` Shakeel Butt
2026-01-23 1:07 ` Jianyue Wu
2026-01-23 8:14 ` JP Kobryn
2026-01-23 13:24 ` Jianyue Wu
2026-01-23 15:01 ` [PATCH v4 0/1] mm: memcg: optimize stat output to reduce printf overhead Jianyue Wu
2026-01-23 15:01 ` [PATCH v4 1/1] mm: optimize stat output for 11% sys time reduce Jianyue Wu
2026-01-23 15:06 ` Jianyue Wu
2026-03-02 19:43 ` Johannes Weiner
2026-03-03 1:32 ` Jianyue Wu
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