How to make task run on different cores?

Chao-Jui Chang ppc52776 at
Wed Jun 12 05:04:56 CEST 2013

Hi Adam,

2013/6/12 Adam Lackorzynski <adam at>

> > But the running benchmarks are not showing on the task list(command 's'
> in
> > jdb), is it normal?
> > I remember in ARM L4Linux, the task list will show 'vmlinuz', 'sh',
> > 'benchmark', ...,etc.
> Should be the same whether its x86 or arm, there's no difference in this
> regard.
>  I found a L4Linux option in
   L4Linux configuration
      Debugging options
        [*] Register Linux program names in the kernel debugger
Does this option provide the feature?
I have enabled this option in the latest L4Linux 3.9 and built with L4 r56,
but the name still not show in jdb for both x86 and ARM. If I remember
correctly, in previous L4Linux 3.7 and L4re-snapshot-2013012910, it does
the work.

For core placement, add
> scheduler = L4.Env.user_factory:create(L4.Proto.Scheduler, 0x18, 0x8,
> cpumask),
> to the environment of L4Linux start call (also have a look at
> l4/conf/examples/x86-fb.cfg). E.g. to place on core 2 make cpumask a 4,
> and so on.
> Thanks for providing the information.
Is there any document about the parameter of the L4.Proto.Scheduler ?
What 0x18, 0x08 mean for Scheduler?

Best regards,
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the l4-hackers mailing list