linux-kernel - Re: init's children list is long and slows reaping children.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070410155314.GA16267@elte.hu>
Date:	Tue, 10 Apr 2007 17:53:14 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Oleg Nesterov <oleg@...sign.ru>, Robin Holt <holt@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Snook <csnook@...hat.com>, linux-kernel@...r.kernel.org,
	Jack Steiner <steiner@...ricas.sgi.com>
Subject: Re: init's children list is long and slows reaping children.


* Eric W. Biederman <ebiederm@...ssion.com> wrote:

> > so ... is anyone pursuing this? This would allow us to make 
> > sys_wait4() faster and more scalable: no tasklist_lock bouncing for 
> > example.
> 
> which part?

all of it :) Everything you mentioned makes sense quite a bit. The 
thread signal handling of do_wait was added in a pretty arbitrary 
fashion so i doubt there are strong requirements in that area. Apps 
might have grown to get used to it meanwhile though, so we've got to do 
it carefully.

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/