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

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Message-Id: <20200429064626.16389-1-changhuaixin@linux.alibaba.com>
Date:   Wed, 29 Apr 2020 14:46:24 +0800
From:   Huaixin Chang <changhuaixin@...ux.alibaba.com>
To:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Cc:     bp@...en8.de, hpa@...or.com, jpoimboe@...hat.com,
        luto@...capital.net, michal.lkml@...kovi.net, mingo@...hat.com,
        peterz@...radead.org, tglx@...utronix.de, x86@...nel.org,
        yamada.masahiro@...ionext.com
Subject: [PATCH 0/2] Build ORC fast lookup table in scripts/sorttable tool

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.

Huaixin Chang (2):
  scripts/sorttable: Build orc fast lookup table via sorttable tool
  x86/unwind/orc: Remove unwind_init() from x86 boot

 arch/x86/include/asm/unwind.h |  2 -
 arch/x86/kernel/setup.c       |  2 -
 arch/x86/kernel/unwind_orc.c  | 51 ----------------------
 scripts/sorttable.h           | 99 ++++++++++++++++++++++++++++++++++++++++---
 4 files changed, 92 insertions(+), 62 deletions(-)

-- 
2.14.4.44.g2045bb6