[Vm-dev] linux thread priorities
eliot.miranda at gmail.com
Thu Feb 4 05:20:14 UTC 2010
On Wed, Feb 3, 2010 at 6:38 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> On Wed, Feb 03, 2010 at 06:01:00PM -0800, Eliot Miranda wrote:
> > So my questions are
> > - is there any way I'm missing to create different priority threads in a
> > non-superuser process?
> Lower the priority of all other threads, which would be equivalent to
> running Squeak under nice(1), which generally works fine.
This doesn't work because in contemporary linux SCHED_OTHER threads are all
of the same priority. One can neither raise nor lower their priority. nice
changes a process's dynamic priority, not its static priority (see
sched_setscheduler(2) and my footnote)
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