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Received: from 214.173.214.35.bc.googleusercontent.com ([35.214.173.214] helo=esm19.siteground.biz) by instance-europe-west4-m94z.prod.antispam.mailspamprotection.com with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98) (envelope-from ) id 1tSOLr-0000000FqvL-3voc for linux-embedded@vger.kernel.org; Mon, 30 Dec 2024 22:35:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=valla.it; s=default; h=Date:Subject:Cc:To:From:list-help:list-unsubscribe: list-subscribe:list-post:list-owner:list-archive; bh=3lbN5tZ3tnyV38Nc8U/tXYwBFmpDaQawr8FColneW4k=; b=H3ZlxB5qzIeZTKDQIH5coPtAlE hmkojop9Zyo+Z3A/jjhiXqlHn9lkyOuOeK++6iVBhV1mO1vJWSlT2bJUXCITFNf3vjQ2Uyl1OS0wx 16ad4x9AzhOqSp0iODOZrRFkn6c+Tcd4DsZxIOGTKq5BEJDoC5++vstKAoA7qrzN/t9A=; Received: from [87.11.41.26] (port=59292 helo=fedora.fritz.box) by esm19.siteground.biz with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98) (envelope-from ) id 1tSOLn-00000000KhJ-2mDh; Mon, 30 Dec 2024 22:35:03 +0000 From: Francesco Valla To: Stephan Mueller , Shankari Cc: Linux Embedded , "Bird, Tim" Subject: Re: [boot-time] jent_mod_init on beagleplay (was RE: [boot-time] [RFC] analyze-initcall-debug.py - a tool to analyze the initcall debug output Date: Mon, 30 Dec 2024 23:35:03 +0100 Message-ID: <22372644.4csPzL39Zc@fedora.fritz.box> In-Reply-To: References: <1964175.7Z3S40VBb9@fedora.fritz.box> <4095066.UUX0tPYDPe@tauon.atsec.com> Precedence: bulk X-Mailing-List: linux-embedded@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - esm19.siteground.biz X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - valla.it X-Source: X-Source-Args: X-Source-Dir: X-SGantispam-id: 0c0da504259b7713c87b56b4e12a989f AntiSpam-DLS: false AntiSpam-DLSP: AntiSpam-DLSRS: AntiSpam-TS: 1.0 Authentication-Results: instance-europe-west4-m94z.prod.antispam.mailspamprotection.com; iprev=pass (214.173.214.35.bc.googleusercontent.com) smtp.remote-ip=35.214.173.214; auth=pass (LOGIN) smtp.auth=esm19.siteground.biz; dkim=pass header.d=valla.it header.s=default header.a=rsa-sha256; arc=none Hi Shankari, On Sunday, 29 December 2024 at 19:52:29 Shankari wrote: > Hi > > I wanted to provide an update on my recent contributions to the BeaglePlay > project. I have recently started contributing and have been analyzing the > boot time of the init process. Below is the output from the system log: > > debian@BeaglePlay:~$ dmesg | grep "init process" > [ 1.480490] Run /init as init process > > Moving forward, I plan to explore ways to modify the command line and > further investigate the data used for SIG analysis. This will help me gain > a deeper understanding of the boot process and its performance > characteristics. I started the same journey around a week ago, and it's proving a valuable experience. After some trimming, I reached a (reported) init startup time of around 0.6s: root@beagleplay-ti:~# dmesg|grep /sbin [ 0.630046] Run /sbin/init as init process The result above was obtained on a slightly modified 6.12.4 kernel with a custom configuration (I am still thinking about the modifications, as they are a bit unorthodox, but I can share them as well as the defconfig if you are interested). > > Please let me know if you have any suggestions or areas where I could focus > my efforts. In general, I'd suggest to use a recent kernel, as I observed a consistent reduction of boot time between e.g. 6.6.x and 6.12.x. > > Best regards, > > Shankari > Regards, Francesco