* Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
@ 2011-04-11 14:02 Constantine Shulyupin
2011-04-11 16:53 ` Marco Stornelli
0 siblings, 1 reply; 6+ messages in thread
From: Constantine Shulyupin @ 2011-04-11 14:02 UTC (permalink / raw)
To: linux-embedded
Hello all,
Make Linux Software presents the fastest ever embedded Linux boot for
720 MHz ARM and NAND flash memory. Linux boot time is 300 milliseconds
from boot loader to shell. The first goal of the project is to achieve
a minimal boot time of a minimal but functional Linux system on common
hardware. The second goal is to provide a platform for developing more
functional systems with an even minimized boot time.
Video of boot process: http://youtu.be/747XLVbTgA4
Boot log with timestamps:
0.000 0.000: TI X-Loader 1.4.4ss Mar 26 2011 01:45:43
0.000 0.000: Optimised by www.MakeLinux.com
0.000 0.000: Loading
0.237 0.237: Running
0.237 0.000: CFG_LOADADDR=80008000
0.249 0.012: *(int*)CFG_LOADADDR=e321f0d3
0.276 0.027: Linux version 2.6.32 (const@makelinux.com)
0.276 0.000: Starting application
0.296 0.020: BusyBox v1.16.2 hush - the humble shell
To learn more, please visit http://www.makelinux.com/emb/fastboot/omap
Thanks.
--
Constantine Shulyupin
http://www.MakeLinux.com/
Embedded Linux Systems,
Device Drivers, TI DaVinci
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
2011-04-11 14:02 Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell Constantine Shulyupin
@ 2011-04-11 16:53 ` Marco Stornelli
2011-04-13 14:53 ` Constantine Shulyupin
0 siblings, 1 reply; 6+ messages in thread
From: Marco Stornelli @ 2011-04-11 16:53 UTC (permalink / raw)
To: Constantine Shulyupin; +Cc: linux-embedded
Il 11/04/2011 16:02, Constantine Shulyupin ha scritto:
> Hello all,
>
> Make Linux Software presents the fastest ever embedded Linux boot for
> 720 MHz ARM and NAND flash memory. Linux boot time is 300 milliseconds
> from boot loader to shell. The first goal of the project is to achieve
> a minimal boot time of a minimal but functional Linux system on common
> hardware. The second goal is to provide a platform for developing more
> functional systems with an even minimized boot time.
>
Hi,
is it a marketing announcement or a presentation of an innovative
solution? In the first case don't send this kind of email to this
mailing list. In the second one, could you explain to us your "fast
boot" solution or your kernel modifications? I can't find any
implementation details on the web site.
Marco
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
2011-04-11 16:53 ` Marco Stornelli
@ 2011-04-13 14:53 ` Constantine Shulyupin
2011-04-13 17:27 ` Marco Stornelli
0 siblings, 1 reply; 6+ messages in thread
From: Constantine Shulyupin @ 2011-04-13 14:53 UTC (permalink / raw)
To: Marco Stornelli; +Cc: linux-embedded
Thank you Marco for your feedback. I've added summary of used
optimization method:
• Reduction of kernel and filesystem size
• Kernel features: naked boot, initrd without compression
• Optimization of NAND flash interface in boot loader
• Boot time was measured with utility tstamp
• You can find more detailed list of methods at http://elinux.org/Boot_Time
• Techniques for improving embedded Linux startup time, presentation:
http://www.makelinux.com/emb/fastboot/MontaVista
Actually, detailed implementations of optimization methods are
described in numerous documents.
On Mon, Apr 11, 2011 at 7:53 PM, Marco Stornelli
<marco.stornelli@gmail.com> wrote:
> Il 11/04/2011 16:02, Constantine Shulyupin ha scritto:
>>
>> Hello all,
>>
>> Make Linux Software presents the fastest ever embedded Linux boot for
>> 720 MHz ARM and NAND flash memory. Linux boot time is 300 milliseconds
>> from boot loader to shell. The first goal of the project is to achieve
>> a minimal boot time of a minimal but functional Linux system on common
>> hardware. The second goal is to provide a platform for developing more
>> functional systems with an even minimized boot time.
>>
>
> Hi,
>
> is it a marketing announcement or a presentation of an innovative solution?
> In the first case don't send this kind of email to this mailing list. In the
> second one, could you explain to us your "fast boot" solution or your kernel
> modifications? I can't find any implementation details on the web site.
>
> Marco
>
--
Constantine Shulyupin
http://www.MakeLinux.com/
Embedded Linux Systems,
Device Drivers, TI DaVinci
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
2011-04-13 14:53 ` Constantine Shulyupin
@ 2011-04-13 17:27 ` Marco Stornelli
2011-04-14 7:43 ` Matthieu CASTET
0 siblings, 1 reply; 6+ messages in thread
From: Marco Stornelli @ 2011-04-13 17:27 UTC (permalink / raw)
To: Constantine Shulyupin; +Cc: linux-embedded
Il 13/04/2011 16:53, Constantine Shulyupin ha scritto:
> Thank you Marco for your feedback. I've added summary of used
> optimization method:
> • Reduction of kernel and filesystem size
> • Kernel features: naked boot, initrd without compression
> • Optimization of NAND flash interface in boot loader
> • Boot time was measured with utility tstamp
> • You can find more detailed list of methods at http://elinux.org/Boot_Time
> • Techniques for improving embedded Linux startup time, presentation:
> http://www.makelinux.com/emb/fastboot/MontaVista
>
> Actually, detailed implementations of optimization methods are
> described in numerous documents.
I really know. I was talking about *your* optimization method, but if I
well understand you've just applied a list of well known methods.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
2011-04-13 17:27 ` Marco Stornelli
@ 2011-04-14 7:43 ` Matthieu CASTET
2011-04-14 18:52 ` Robert Schwebel
0 siblings, 1 reply; 6+ messages in thread
From: Matthieu CASTET @ 2011-04-14 7:43 UTC (permalink / raw)
To: Marco Stornelli; +Cc: Constantine Shulyupin, linux-embedded
Hi,
Marco Stornelli a écrit :
> Il 13/04/2011 16:53, Constantine Shulyupin ha scritto:
>> Thank you Marco for your feedback. I've added summary of used
>> optimization method:
>> • Reduction of kernel and filesystem size
>> • Kernel features: naked boot, initrd without compression
>> • Optimization of NAND flash interface in boot loader
>> • Boot time was measured with utility tstamp
>> • You can find more detailed list of methods at http://elinux.org/Boot_Time
>> • Techniques for improving embedded Linux startup time, presentation:
>> http://www.makelinux.com/emb/fastboot/MontaVista
>>
>> Actually, detailed implementations of optimization methods are
>> described in numerous documents.
>
> I really know. I was talking about *your* optimization method, but if I
> well understand you've just applied a list of well known methods.
Not to say such case are not interesting : loading a linux kernel with only a
serial driver, a ramdisk and a shell as init doesn't reflect reality.
In real product what you want if fast user interaction (sound, mounting big
filesystem with user data, lcd display, ...)
Matthieu
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell
2011-04-14 7:43 ` Matthieu CASTET
@ 2011-04-14 18:52 ` Robert Schwebel
0 siblings, 0 replies; 6+ messages in thread
From: Robert Schwebel @ 2011-04-14 18:52 UTC (permalink / raw)
To: Matthieu CASTET; +Cc: Marco Stornelli, Constantine Shulyupin, linux-embedded
On Thu, Apr 14, 2011 at 09:43:35AM +0200, Matthieu CASTET wrote:
> Not to say such case are not interesting : loading a linux kernel with
> only a serial driver, a ramdisk and a shell as init doesn't reflect
> reality.
>
> In real product what you want if fast user interaction (sound,
> mounting big filesystem with user data, lcd display, ...)
Well, it depends on the application. In the automotive box I've shown
the barebox based boot optimizations for in my ELC-E talk, the task is
to get CAN communication running in < 200 ms. For that kind of
application it's useful to be in userspace as fast as possible, just in
order to have one socket-can application running, and everything else
comes later.
rsc
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-04-14 18:52 UTC | newest]
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-- links below jump to the message on this page --
2011-04-11 14:02 Super Fast Boot of Embedded Linux: 300 ms from boot loader to shell Constantine Shulyupin
2011-04-11 16:53 ` Marco Stornelli
2011-04-13 14:53 ` Constantine Shulyupin
2011-04-13 17:27 ` Marco Stornelli
2011-04-14 7:43 ` Matthieu CASTET
2011-04-14 18:52 ` Robert Schwebel
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