netdev - Re: [PATCH iproute2] ss: do not bindly dump two families

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]

Message-ID: <20150624233237.3a4a263b@uryu.home.lan>
Date:	Wed, 24 Jun 2015 23:32:37 -0400
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH iproute2] ss: do not bindly dump two families

On Fri, 29 May 2015 05:37:49 -0700
Eric Dumazet <eric.dumazet@...il.com> wrote:

> From: Eric Dumazet <edumazet@...gle.com>
> 
> ss currently dumps IPv4 sockets, then IPv6 sockets from the kernel,
> even if -4 or -6 option was given. Filtering in user space then has to
> drop all sockets of wrong family. Such a waste of time...
> 
> Before :
> 
> $ time ss -tn -4 | wc -l
> 251659
> 
> real	0m1.241s
> user	0m0.423s
> sys	0m0.806s
> 
> After:
> 
> $ time ss -tn -4 | wc -l
> 251672
> 
> real	0m0.779s
> user	0m0.412s
> sys	0m0.386s
> 
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

I applied all 3 ss patches for the 4.1 release in progress.

--
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