netdev - Re: [PATCH 2/2] ipv4: factorize cache clearing for batched unregister operations

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Tue, 17 Nov 2009 00:35:19 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	bcrl@...et.ca
Cc:	shemminger@...tta.com, opurdila@...acom.com,
	netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH 2/2] ipv4: factorize cache clearing for batched
 unregister operations

From: Benjamin LaHaise <bcrl@...et.ca>
Date: Mon, 16 Nov 2009 19:22:38 -0500

> It's not possible to create more than a few thousand IPv6 interfaces in 
> my tests with a 4GB vm.  The culprit seems to be the per-cpu arrays for 
> statistics using vmalloc() and wasting gobs of memory as a result (memory 
> usage seems to be 10x per interface vs what IPv4 is using), but I haven't 
> dug too deeply yet.

That definitely should be fixed.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html