linux-kernel - Re: [PATCH 5/5] selftests/bpf: a simple benchmark tool for /proc/<pid>/maps APIs

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Message-ID: <2024050404-rectify-romp-4fdb@gregkh>
Date: Sat, 4 May 2024 17:29:46 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Andrii Nakryiko <andrii@...nel.org>
Cc: linux-fsdevel@...r.kernel.org, brauner@...nel.org,
	viro@...iv.linux.org.uk, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 5/5] selftests/bpf: a simple benchmark tool for
 /proc/<pid>/maps APIs

On Fri, May 03, 2024 at 05:30:06PM -0700, Andrii Nakryiko wrote:
> Implement a simple tool/benchmark for comparing address "resolution"
> logic based on textual /proc/<pid>/maps interface and new binary
> ioctl-based PROCFS_PROCMAP_QUERY command.

Of course an artificial benchmark of "read a whole file" vs. "a tiny
ioctl" is going to be different, but step back and show how this is
going to be used in the real world overall.  Pounding on this file is
not a normal operation, right?

thanks,

greg k-h