linux-kernel - Re: [PATCH 0/2] Build ORC fast lookup table in scripts/sorttable tool

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Message-ID: <20200429084933.GF13592@hirez.programming.kicks-ass.net>
Date:   Wed, 29 Apr 2020 10:49:33 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Huaixin Chang <changhuaixin@...ux.alibaba.com>
Cc:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        bp@...en8.de, hpa@...or.com, jpoimboe@...hat.com,
        luto@...capital.net, michal.lkml@...kovi.net, mingo@...hat.com,
        tglx@...utronix.de, x86@...nel.org, yamada.masahiro@...ionext.com
Subject: Re: [PATCH 0/2] Build ORC fast lookup table in scripts/sorttable tool

On Wed, Apr 29, 2020 at 02:46:24PM +0800, Huaixin Chang wrote:
> Move building of fast lookup table from boot to sorttable tool. This saves us
> 6380us boot time on Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz with cores.

And what does it add to the build time?