linux-kernel - Re: Decreasing time for `rsa

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Message-ID: <3649766.4rHtxdK8Pi@tauon.chronox.de>
Date:   Wed, 12 Jul 2017 19:28:11 +0200
From:   Stephan Müller <smueller@...onox.de>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Decreasing time for `rsa_init`

Am Mittwoch, 12. Juli 2017, 12:59:58 CEST schrieb Paul Menzel:

Hi Paul,

> Dear Linux crypto folks,
> 
> 
> Building CRYPTO_RSA not as module, but into the Linux kernel,
> `rsa_init()` takes 130 ms on an ASRock E350M1.
> 
> (Timings are shown by adding `initcall_debug` to Linux command line [1].
> The times are visualized by `analyze_boot.py` from pm-graph [2] or
> `systemd-bootchart`.)
> 
> This is quite a lot of time compared to other modules, and I wonder if
> there are ways to decrease that time other than building it as a module,
> and not signing modules?

Is the testmgr compiled? If yes, the self test may take that time.
> 
> 
> Kind regards,
> 
> Paul
> 
> 
> [1] http://elinux.org/Initcall_Debug
> [2] https://github.com/01org/pm-graph



Ciao
Stephan