[haiku-bugs] Re: [Haiku] #2817: setpriority and getpriority are missing to compile ocaml out of the box under Haiku
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Fri, 14 Jan 2011 19:04:43 -0000
#2817: setpriority and getpriority are missing to compile ocaml out of the box
under Haiku
---------------------------+------------------------------
Reporter: oco | Owner: nobody
Type: enhancement | Status: new
Priority: normal | Milestone: R1
Component: System/POSIX | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Has a Patch: 0
Platform: All | Blocking:
---------------------------+------------------------------
Changes (by bonefish):
* version: R1/pre-alpha1 => R1/Development
Comment:
Replying to [comment:6 leavengood]:
> Can we really implement these properly if we don't have nice values for
processes which the scheduler uses?
No, but we can easily introduce per-process nice values. It's not even
something the scheduler would need to know about. They could simply be
applied to all threads of the process, e.g. by computing the Haiku thread
priority from nice value and pthread scheduling priority.
> Do we even want to add these Unixy nice values? Seems like it might be
an archaic concept in the modern world of threads.
At least they shouldn't be complicated to implement and wouldn't get in
the way either.
> So either we just don't implement these, or we just do a fairly dumb
mapping like the renice command does and call that good enough.
... or approximate them more correctly, as suggested above. At least
that's what I would recommend to whoever wants to implement the
functionality.
--
Ticket URL: <http://dev.haiku-os.org/ticket/2817#comment:7>
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