Re: [Lse-tech] Re: 15000+ processes -- poor performance ?!
Denis Vlasenko (email@example.com)
Thu, 19 Dec 2002 13:05:03 -0200
On 19 December 2002 00:05, William Lee Irwin III wrote:
> On Wed, Dec 18, 2002 at 05:44:46PM -0800, David Lang wrote:
> > In my case I will still be running thousands of processes, so I
> > have to just teach everyone not to use top instead.
> > David Lang
> Well, a better solution would be a userspace free of /proc/
> 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
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.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to firstname.lastname@example.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/