From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D4D5B347C7 for ; Fri, 24 Apr 2026 08:18:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777018736; cv=none; b=gckIUDOdRN5v/c+0tAYvsnMCRjJ1nS3OWmoHlqOhSf8uOS4xzp0xu08d1aV9rTyWfn/kzDELhsebUq/d8ngtybYgjZtTR9qfsEFn7qWsHnbDyQZiJzxWdxDu5dJRi77QxejM+ZE2hwZ1f/mOjBl31zKMBhMkmtUwpcM/5B9Upak= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777018736; c=relaxed/simple; bh=UsRk4rGyEaHh2bp/xwdp1GFgam2mbMJ1+Dggg3ofEbo=; h=Date:From:To:Message-ID:Subject:MIME-Version:Content-Type; b=oTF9lX19fRFytaBh1RpgpVt+PpIL5PTkC7F6x84IXl5NNeVEF1rU68y0VEj/InRKQ1NbISjR+6DdFOeac8e+5QNjo36kAD7Kg4ohp0mBioYSifrnWPNf+ATfZIZtKsmO4YwRQdsiIdBAPns00DUcwENY4ZLTQAQuBeezDnogN7g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=FJQiucfB; arc=none smtp.client-ip=80.241.56.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="FJQiucfB" Received: from smtp1.mailbox.org (smtp1.mailbox.org [IPv6:2001:67c:2050:b231:465::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4g25T13J7Xz9srX; Fri, 24 Apr 2026 10:18:45 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1777018725; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=B+tcJK3oBh7Suw7pjFj/RWw6h7dePuECMBKTZz3y9KU=; b=FJQiucfB+dGSqJj5Ij8wDQjNfDfYyMbDaHZnOHpCMR2mL5oyjT/VGjz/WwCt15Ffc0FLsF G0qVtPp1gLkxTvb9UQ1ytb9FUzVXrzeMzrvwppne5j2vrFdWQKmNahQ8Qj+0CLpsbRHpQG sPnzWH4IPpw70WbHQhgsy5ekwYhOOT9Bi3OTH+GrA3SFAhe03qwHVjb81Aala+pRLlvOt1 Fz/LX2o35mwbPG7Gf+bdeD5U3IS11gAr+MuPr0PGu+O4EsflHqkiPC80IZvdHxcXDJdQU/ GXkznL+nivVTN7geXcn7uBqZ8K41THNOSK2vI5Ji0zdV1sZNtZi5cnhyUoWR+Q== Date: Fri, 24 Apr 2026 10:18:44 +0200 (CEST) From: torvic9@mailbox.org To: "linux-kbuild@vger.kernel.org" , "nathan@kernel.org" , "nsc@kernel.org" Message-ID: <1896318894.249754.1777018724256@app.mailbox.org> Subject: [QUESTION] kernel/Kconfig.hz: outdated help texts? Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Priority: 3 Importance: Normal X-MBO-RS-ID: a2893233d680f9370d2 X-MBO-RS-META: ghn9j5ke9b3dztwjt3wseicn4wgieqig Hello, I noticed that the help text in kernel/Kconfig.hz has barely changed since configurable frequency of the timer was introduced in 2005. Are these help texts still accurate 21 years later? We have e.g.: "250 Hz is a good compromise choice allowing server performance while also showing good interactive responsiveness even on SMP and NUMA systems. If you are going to be using NTSC video or multimedia, select 300 Hz instead." Is that NTSC/PAL thing still relevant today, in times of high resolution timers, modern graphics cards, Freesync and high-refresh 4K monitors with 144 Hz? Cheers, Tor Vic