On Tue Mar 04, 2008 at 11:45:21 +0100, Yang Xu wrote:
ok I see.... thanks. so if we run a RTOS above the ukernel, the RTOS should have the ability to distribute the threads. ukernel only offers the most basic services: address mapping, IPC, naming and so on.
Yes, exactly.
On 3/3/08, Adam Lackorzynski adam@os.inf.tu-dresden.de wrote:
On Mon Mar 03, 2008 at 10:16:00 +0100, Yang Xu wrote:
On 2/29/08, Adam Lackorzynski adam@os.inf.tu-dresden.de wrote:
On Fri Feb 29, 2008 at 15:23:01 +0100, Yang Xu wrote:
does anybody know that whether l4 linux now already support smp or
not
please?
It does.
So if I download the latest version of L4-linux, I can run it on a multiprocessor system, and it can make good use of all the cores ,
right?
Not currently as the µkernel is not ready yet.
As far as I know, linux 2.6.x already supports smp. So I am wondering
the
the l4-linux 2.6 supports smp or not. if yes, it is the linux
kernel
distributes the threads across the cores or the ukernel does this?
Linux distributes it's thread across it's vCPUs, and your vCPUs are where you put them.
I don't know whether I understand this correctly. it is the linux that distributes the threads to all the cores, not the ukernel.
Does this mean that the ukernel doesn't realise the existence of the
other
cores?
It does but it won't move threads around itself. Userland (e.g. L4Linux) is supposed to do that and it does so as usual.
Adam
Adam adam@os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/
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Adam