lkml.org 
[lkml]   [2020]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 12/28] kbuild: lto: limit inlining
On Thu, Sep 03, 2020 at 01:30:37PM -0700, Sami Tolvanen wrote:
> This change limits function inlining across translation unit boundaries
> in order to reduce the binary size with LTO. The -import-instr-limit
> flag defines a size limit, as the number of LLVM IR instructions, for
> importing functions from other TUs, defaulting to 100.
>
> Based on testing with arm64 defconfig, we found that a limit of 5 is a
> reasonable compromise between performance and binary size, reducing the
> size of a stripped vmlinux by 11%.
>
> Suggested-by: George Burgess IV <gbiv@google.com>
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

Reviewed-by: Kees Cook <keescook@chromium.org>

--
Kees Cook

\
 
 \ /
  Last update: 2020-09-04 00:21    [W:0.402 / U:6.192 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site