linux-kernel - Re: m68k: Convert to genirq (WIP)

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Date:	Fri, 17 Jun 2011 07:01:30 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Finn Thain <fthain@...egraphics.com.au>
Cc:	"Linux/m68k" <linux-m68k@...ts.linux-m68k.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: m68k: Convert to genirq (WIP)

On Fri, Jun 17, 2011 at 05:45, Finn Thain <fthain@...egraphics.com.au> wrote:
> On Thu, 16 Jun 2011, Geert Uytterhoeven wrote:
>> On Wed, Jun 15, 2011 at 21:44, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> > On Sat, Jun 4, 2011 at 19:56, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> >> On Sat, May 28, 2011 at 20:32, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> >>
>> >> It works on Amiga now, too. It can still use some optimizations in
>> >> the irq_{enable,disable,ack,mask,mask_ack,unmask} area, as my
>> >> BogoMIPS rating dropped by ca 2.5% and is now under 16, for a 25 MHz
>> >> 68040.
>> >
>> > Seems like everything (Atari/ARAnyM and Amiga) still works when using
>> > handle_simple_irq instead of handle_level_irq. As a bonus, BogoMIPS is
>> > above 16 again.
>
> Your bogomips benchmark would be the best-case penalty, right?
>
> Have you tried say, sending a ping flood to measure throughput and
> latency?

No, I haven't compared network performance.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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
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