From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <551C44E1.8090105@tycho.nsa.gov> Date: Wed, 01 Apr 2015 15:20:01 -0400 From: Stephen Smalley MIME-Version: 1.0 To: Ravi Kumar , Selinux@tycho.nsa.gov Subject: Re: Fwd: Booting time is increased after applying kernel 3.10 References: In-Reply-To: Content-Type: text/plain; charset=windows-1252 List-Id: "Security-Enhanced Linux \(SELinux\) mailing list" List-Post: List-Help: On 04/01/2015 02:58 PM, Ravi Kumar wrote: > Hi Team , > In reference to old discussion via the mail thread , > http://marc.info/?l=selinux&m=140387478632108&q=raw > > This is on the context on removing the synchronize_net() from bootup and > was concluded with optimization on reducing the the number of call to > synchronize_net() In context to to this what we are seeing is skipping > the call is saving much time on android bootup and based on the > discussion at least for android systems it look like we can still > skip this call as suggest in the initial patch which is much saving on > the bootup time . But still i dont see any mainline / signed off sort > of patch for andriod or any one using this . Did we see any issue or > planned different . > > At least on KK the bootup time was under control for L code base we are > trying to see all the ways of optimization any input are greatly > appreciated. commit 615e51fdda6f274e94b1e905fcaf6111e0d9aa20 Author: Paul Moore Date: Thu Jun 26 14:33:56 2014 -0400 selinux: reduce the number of calls to synchronize_net() when flushing cache When flushing the AVC, such as during a policy load, the various network caches are also flushed, with each making a call to synchronize_net() which has shown to be expensive in some cases. This patch consolidates the network cache flushes into a single AVC callback which only calls synchronize_net() once for each AVC cache flush. Reported-by: Jaejyn Shin Signed-off-by: Paul Moore