lkml.org 
[lkml]   [2002]   [Dec]   [19]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
FromDenis Vlasenko <>
SubjectRe: [Lse-tech] Re: 15000+ processes -- poor performance ?!
DateThu, 19 Dec 2002 13:15:35 -0200
On 19 December 2002 08:27, William Lee Irwin III wrote:
> On 19 December 2002 00:05, William Lee Irwin III wrote:
> >> Well, a better solution would be a userspace free of /proc/
> >> dependency.
> >> Or actually fixing the kernel. proc_pid_readdir() wants an
> >> efficiently indexable linear list, e.g. TAOCP's 6.2.3 "Linear List
> >> Representation". At that point its expense is proportional to the
> >> buffer size and "seeking" about the list as it is wont to do is
> >> O(lg(processes)).
>
> On Thu, Dec 19, 2002 at 01:05:03PM -0200, Denis Vlasenko wrote:
> > A short-time solution: run top d 30 to make it refresh only every
> > 30 seconds. This will greatly reduce top's own load skew.
>
> As userspace solutions go your suggestions is just as good. The
> kernel still needs to get its act together and with some urgency.

That was just a suggestion as to how to get realistic picture
of system load for Till Immanuel Patzschke <tip@inw.de>.
--
vda
-
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 12:31    [from the cache]
©2003-2008