From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Petr Mladek <pmladek@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
John Ogness <john.ogness@linutronix.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Peter Zijlstra <peterz@infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Daniel Thompson <daniel.thompson@linaro.org>
Subject: Re: [GIT PULL] printk for 5.10 (includes lockless ringbuffer)
Date: Wed, 14 Oct 2020 16:16:29 +0200 [thread overview]
Message-ID: <CAMuHMdXHFFUrjRMEHnXXU8QQkgD9x_S6R3N0Q7Q4H2RSfy2GGw@mail.gmail.com> (raw)
In-Reply-To: <20201012144916.GB10602@alley>
Hi Petr,
On Mon, Oct 12, 2020 at 4:50 PM Petr Mladek <pmladek@suse.com> wrote:
> - Fully lockless ringbuffer implementation, including the support for
> continuous lines. It will allow to store and read messages in any
> situation wihtout the risk of deadlocks and without the need
> of temporary per-CPU buffers.
linux-m68k-atari_defconfig$ bloat-o-meter vmlinux.old
vmlinux.lockless_ringbuffer
add/remove: 39/16 grow/shrink: 9/15 up/down: 214075/-4362 (209713)
Function old new delta
_printk_rb_static_infos - 180224 +180224
_printk_rb_static_descs - 24576 +24576
[...]
Seriously?!? Or am I being misled by the tools?
linux-m68k-atari_defconfig$ size vmlinux.old vmlinux.lockless_ringbuffer
text data bss dec hex filename
3559108 941716 177772 4678596 4763c4 vmlinux.old
3563922 1152496 175276 4891694 4aa42e vmlinux.lockless_ringbuffer
Apparently not...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2020-10-14 14:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-12 14:49 [GIT PULL] printk for 5.10 (includes lockless ringbuffer) Petr Mladek
2020-10-13 23:49 ` pr-tracker-bot
2020-10-14 14:16 ` Geert Uytterhoeven [this message]
2020-10-14 14:58 ` Rasmus Villemoes
2020-10-14 15:07 ` Geert Uytterhoeven
2020-10-15 8:03 ` Petr Mladek
2020-10-14 20:55 ` John Ogness
2020-10-15 7:52 ` Petr Mladek
2020-10-16 15:05 Petr Mladek
2020-10-16 19:54 ` pr-tracker-bot
2020-11-27 13:47 Petr Mladek
2020-11-27 19:19 ` pr-tracker-bot
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