lkml.org 
[lkml]   [2008]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: regression: sysctl_check changes in 2.6.24 are O(n) resulting in slow creation of 10000 network interfaces
From
From: ebiederm@xmission.com (Eric W. Biederman)
Date: Sun, 06 Jan 2008 23:57:57 -0700

> Why do we need 10000 interfaces? Why isn't network device creation a
> slow path?

Because people create virtual devices like mad.

> So is this a bug report telling me that there are users with
> 10k or 100k interfaces that care. So we need to fix sysctl.

Unquestionably, we do, it's a major regression.

People create thousands of VLAN devices, as one of many examples, all
the time.

That's why we even bother hashing network devices in the network code.


\
 
 \ /
  Last update: 2008-01-07 08:13    [W:0.157 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site