All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ole Kliemann <ole@plastictree.net>
To: selinux@tycho.nsa.gov
Subject: SELinux performance depending on type count
Date: Tue, 7 Aug 2012 15:02:44 +0200	[thread overview]
Message-ID: <20120807130244.GE2085@telvanni> (raw)

[-- Attachment #1: Type: text/plain, Size: 636 bytes --]

I read on some locations (Fedora FAQ...) that there is an overall 
performance impact of about 7% when running with SELinux.

Does anyone know if this impact is dependent upon the number of 
types the policy has? I would assume no: A lot of types only take 
up memory and caching should prevent any impact on the runtime 
performance.

But if there was a performance problem with a lot of types, at 
what number n would it start to hit hard? And how does it 
increase (linear, quadratic...)?

And would it be better performance-wise to run a MCS-policy with 
say categories c0.cn than to have types c0_t, ... cn_t?

Ole

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 198 bytes --]

             reply	other threads:[~2012-08-07 13:02 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-07 13:02 Ole Kliemann [this message]
2012-08-07 14:12 ` SELinux performance depending on type count David Quigley
2012-08-07 17:07 ` William Roberts
2012-08-07 17:36   ` Daniel J Walsh
2012-08-08 20:44 ` Ole Kliemann
2012-08-09 10:45   ` Adam Tkac
2012-08-09 11:56     ` Ole Kliemann
2012-08-10 12:11 ` Ole Kliemann
2012-08-10 13:00   ` Stephen Smalley
2012-08-10 14:36     ` Ole Kliemann
2012-08-10 15:05       ` Stephen Smalley
2012-08-10 15:43         ` Ole Kliemann
2012-08-10 15:44         ` Ole Kliemann
2012-08-10 16:08           ` Stephen Smalley
2012-08-10 16:18             ` Stephen Smalley
2012-08-10 17:00               ` Ole Kliemann
2012-08-10 18:08                 ` Stephen Smalley
2012-08-10 18:46                   ` Ole Kliemann
2012-08-10 18:55                     ` Stephen Smalley
2012-08-10 19:11                       ` Ole Kliemann
2012-08-10 19:19                         ` Stephen Smalley
2012-08-10 19:26                           ` Ole Kliemann
2012-08-10 19:50                             ` Stephen Smalley
2012-08-10 21:38 ` Ole Kliemann
2012-08-13 12:35   ` Stephen Smalley
2012-08-27 15:28     ` Ole Kliemann
2012-08-27 16:24       ` Stephen Smalley

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20120807130244.GE2085@telvanni \
    --to=ole@plastictree.net \
    --cc=selinux@tycho.nsa.gov \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.