netdev - Re: [PATCH v8 net-next 2/2] bonding: Simplify the xmit function for modes that use xmit

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: <20151019163556.GK2288@nanopsycho.orion>
Date:	Mon, 19 Oct 2015 18:35:56 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	Mahesh Bandewar <maheshb@...gle.com>
Cc:	Jay Vosburgh <j.vosburgh@...il.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	Veaceslav Falico <vfalico@...il.com>,
	Nikolay Aleksandrov <nikolay@...hat.com>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Maciej Zenczykowski <maze@...gle.com>
Subject: Re: [PATCH v8 net-next 2/2] bonding: Simplify the xmit function for
 modes that use xmit_hash

Sun, Oct 05, 2014 at 02:45:01AM CEST, maheshb@...gle.com wrote:
>Earlier change to use usable slave array for TLB mode had an additional
>performance advantage. So extending the same logic to all other modes
>that use xmit-hash for slave selection (viz 802.3AD, and XOR modes).
>Also consolidating this with the earlier TLB change.
>
>The main idea is to build the usable slaves array in the control path
>and use that array for slave selection during xmit operation.
>
>Measured performance in a setup with a bond of 4x1G NICs with 200
>instances of netperf for the modes involved (3ad, xor, tlb)
>cmd: netperf -t TCP_RR -H <TargetHost> -l 60 -s 5
>
>Mode        TPS-Before   TPS-After
>
>802.3ad   : 468,694      493,101
>TLB (lb=0): 392,583      392,965
>XOR       : 475,696      484,517

Looking over bonding code now and came across this commit. It gave me a
little headache. Why don't you guys just use team instead of doing
bonding megapatches like this? This is making bonding code even more
complicated (screwed-up) :/ I don't understand.
--
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