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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: 4433921e0c2fbb0aa2018027de81fd13 AntiSpam-DLS: false AntiSpam-DLSP: AntiSpam-DLSRS: AntiSpam-TS: 1.0 Authentication-Results: instance-europe-west4-kq8l.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 Stephan, On Thursday, 2 January 2025 at 10:06:25 Stephan Mueller wrote: > Am Dienstag, 31. Dezember 2024, 15:42:16 CET schrieb Francesco Valla: > > Hi Francesco, > > > The ultimate goal here is reducing the boot time to the minimum possible > > without removing functionalities. The purpose is educational, but on the > > long term it will probably be beneficial to my work too (as I work in the > > automotive industry, where each millisecond counts). > > > > There isn't anything inherently wrong, at the moment I am trying to > > determine what is real initialization time and what instead is an actual > > waste of time (e.g.: excessive probe deferral). The aforementioned > > jent_mod_init (on which Tim I think is working on some level) is one of the > > longest single inits, but to be honest I don't know much about all the > > entropy stuff. > > > > Wishing you the best for the new year, > > Same to you! > > Thanks for your answer. With that, if you desire it, I can try to help you > lowering the boot time at least in light of the Jitter RNG. This, however, > requires a bit of analysis which you need to help me with as I do not have a > board you discuss. But the Jitter RNG has some turning knobs that can be used. > > Ciao > Stephan > That would be wonderful! Whenever you have the time, please let me know what analysis you need. Regards, Francesco