On 4/24/07, Amol Lad <[EMAIL PROTECTED]> wrote:
On Tue, 2007-04-24 at 12:08 +0530, Rick Brown wrote:
> Hi list,
>
> I read that the kernel does not differentiate between threads and
> processes.
Only for scheduling. Kernel maintains thread level data structures to
enable say fast context switch, mm sharing etc
Could you please give an examples?
>
> So as long as relevant system calls do not change, it should be
> possible to run any threading library on any kernel? NPTL on 2.4?
> pthreads on 2.6?
NPTL needs kernel support. It is 1:1 threading model without any
overhead under the assumption that kernel supports faster context
switches, less kernel entry overhead etc
AFAIK, all support that a kernel can provide userspace is in terms of
system calls. Do you mean that NPTL needs support in form of some
special syscalls? Or may be /dev/kmem etc?
Rick
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