netdev - Re: [RFC PATCH v1 0/4] Implement performance impact measurement tool

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Message-ID: <2567b018-c536-0bb9-9b2d-fb0ffb2b5ae8@huawei-partners.com>
Date: Mon, 23 Sep 2024 18:05:18 +0300
From: Mikhail Ivanov <ivanov.mikhail1@...wei-partners.com>
To: <mic@...ikod.net>
CC: <willemdebruijn.kernel@...il.com>, <gnoack3000@...il.com>,
	<linux-security-module@...r.kernel.org>, <netdev@...r.kernel.org>,
	<netfilter-devel@...r.kernel.org>, <yusongping@...wei.com>,
	<artem.kuzin@...wei.com>, <konstantin.meskhidze@...wei.com>
Subject: Re: [RFC PATCH v1 0/4] Implement performance impact measurement tool

On 8/16/2024 3:59 AM, Mikhail Ivanov wrote:
> Hello! This is v1 RFC patch dedicated to Landlock performance measurement.
> 
> Landlock LSM hooks are executed with many operations on Linux internal
> objects (files, sockets). This hooks can noticeably affect performance
> of such operations as it was demonstrated in the filesystem caching
> patchset [1]. Having ability to calculate Landlock performance overhead
> allows to compare kernel changes and estimate the acceptability
> of new features (e.g. [2], [3], [4]).

Hello! Kindly reminder about this patchset. UDP-dedicated RFC v1 [1]
patchset was published and this patchset can be useful to benchmark
sendmsg/recvmsg hooks. But it would probably be better to apply other
network patches first. WDYT?

[1] 
https://lore.kernel.org/all/20240916122230.114800-1-matthieu@buffet.re/#t