On Wed, Jan 25, 2012 at 09:53:21PM +0100, Zygmunt Krynicki wrote:
> Hi Zach
> 
> It takes a _long_ while to get to raw serial console login prompt of a
> stripped-down ubuntu nano image. On my core i7 (first gen) the
> simulator can sometimes reach around 1M instructions per second but is
> usually slower. On top of that I don't know if it has any kind of
> support for graphics.

We've noticed that for some reason running MAKEDEV takes seriously ages,
so if you don't have CONFIG_DEVTMPFS enabled in your kernel, make sure
you turn it on in the kernel config.  This causes the bootscripts to
bypass MAKEDEV.

You may also find that the model uses a lot less RAM if you turn
adress space layout randomisation off -- something to do with the
way memory mappings are cached:

echo 0 >/proc/sys/kernel/randomize_va_space

This is especially helpful on machines where the memory usage would
otherwise run into swap.


Cheers
---Dave

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