lkml.org 
[lkml]   [2003]   [Apr]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: fairsched + O(1) process scheduler
From
Date
On Wed, 2003-04-02 at 16:36, Antonio Vargas wrote:

> I've been thinking about this thing a while ago, and I think I could do this:
>
> a. Have a kernel thread which wakes up on each tick.

Why not use the timer tick itself? It already calls scheduler_tick()...

Oh, because you need to grab uidhash_lock? Ew. Needing a kernel thread
for this is not pretty.

> Also, this locking rule means I can't even read current->user->time_slice?
> What if I changed the type to an atomic_int?

You can always read a single word-sized type atomically. No need for
atomic_t's.

Robert Love

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:34    [W:0.063 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site