From: Huaixin Chang <changhuaixin@linux.alibaba.com>
To: changhuaixin@linux.alibaba.com
Cc: bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
luto@amacapital.net, michal.lkml@markovi.net, mingo@redhat.com,
peterz@infradead.org, tglx@linutronix.de, x86@kernel.org,
yamada.masahiro@socionext.com
Subject: [PATCH v2 0/3] Build ORC fast lookup table in scripts/sorttable tool
Date: Fri, 7 Aug 2020 12:17:59 +0800 [thread overview]
Message-ID: <20200807041802.18639-1-changhuaixin@linux.alibaba.com> (raw)
In-Reply-To: <20200723034643.33537-1-changhuaixin@linux.alibaba.com>
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. It
adds a little more than 7ms to boot time when testing on the same CPU.
Changelog v2:
1. Write .orc_lookup section header via objtool
2. Move two ORC lookup table macro from orc_lookup.h into orc_types.h
3. Spell 'ORC' in capitalized fashion
Huaixin Chang (3):
objtool: Write .orc_lookup section header
scripts/sorttable: Build ORC fast lookup table via sorttable tool
x86/unwind/orc: Simplify unwind_init() for x86 boot
arch/x86/include/asm/orc_lookup.h | 16 ------
arch/x86/include/asm/orc_types.h | 16 ++++++
arch/x86/kernel/unwind_orc.c | 41 +--------------
arch/x86/kernel/vmlinux.lds.S | 2 +-
scripts/sorttable.h | 96 +++++++++++++++++++++++++++++++---
tools/arch/x86/include/asm/orc_types.h | 16 ++++++
tools/objtool/orc_gen.c | 4 ++
7 files changed, 128 insertions(+), 63 deletions(-)
--
2.14.4.44.g2045bb6
next prev parent reply other threads:[~2020-08-07 4:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 3:46 [PATCH RESEND 0/3] Build ORC fast lookup table in scripts/sorttable tool Huaixin Chang
2020-07-23 3:46 ` [PATCH 1/3] scripts/sorttable: Change section type of orc_lookup to SHT_PROGBITS Huaixin Chang
2020-07-24 13:55 ` Ingo Molnar
2020-08-04 1:40 ` changhuaixin
2020-08-06 15:08 ` Ingo Molnar
2020-08-07 4:22 ` changhuaixin
2020-07-23 3:46 ` [PATCH 2/3] scripts/sorttable: Build orc fast lookup table via sorttable tool Huaixin Chang
2020-07-24 13:53 ` Ingo Molnar
2020-07-27 2:19 ` changhuaixin
2020-07-23 3:46 ` [PATCH 3/3] x86/unwind/orc: Simplify unwind_init() for x86 boot Huaixin Chang
2020-08-07 4:17 ` Huaixin Chang [this message]
2020-08-07 4:18 ` [PATCH 1/3] objtool: Write .orc_lookup section header Huaixin Chang
2020-08-07 4:18 ` [PATCH 2/3] scripts/sorttable: Build ORC fast lookup table via sorttable tool Huaixin Chang
2020-08-07 4:18 ` [PATCH 3/3] x86/unwind/orc: Simplify unwind_init() for x86 boot Huaixin Chang
2020-08-19 3:03 ` [PATCH v2 0/3] Build ORC fast lookup table in scripts/sorttable tool changhuaixin
-- strict thread matches above, loose matches on Subject: below --
2020-06-01 17:38 [PATCH 0/2] " Josh Poimboeuf
2020-06-03 14:31 ` [PATCH v2 0/3] " Huaixin Chang
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