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Message-ID: <521FF755.6050306@huawei.com>
Date: Fri, 30 Aug 2013 09:37:25 +0800
From: Ding Tianhong <dingtianhong@...wei.com>
To: Nikolay Aleksandrov <nikolay@...hat.com>
CC: Jay Vosburgh <fubar@...ibm.com>,
Andy Gospodarek <andy@...yhouse.net>,
"David S. Miller" <davem@...emloft.net>,
Veaceslav Falico <vfalico@...hat.com>,
Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH 0/5] bonding: Patchset for rcu use in bonding
On 2013/8/29 22:28, Nikolay Aleksandrov wrote:
> On 08/28/2013 06:20 AM, Ding Tianhong wrote:
>> Hi:
>>
>> The Patch Set convert the xmit of 3ad and alb mode to use rcu lock.
>> replace and add more rcu list function.
>> fix a bug to protect bonding_store_xmit_hash().
>>
>> I test well and no problems found till now.
>>
>> Ding Tianhong (3):
>> Wang Yufen (1):
>> Yang Yingliang (1):
>> bonding: simplify and use RCU protection for 3ad xmit path
>> bonding: replace read_lock to rcu_read_lock for
>> bond_3ad_get_active_agg_info()
>> bonding: add rtnl lock for bonding_store_xmit_hash
>> bonding: restructure and simplify bond_for_each_slave_next()
>> bonding: use RCU protection for alb xmit path
>>
>> drivers/net/bonding/bond_3ad.c | 35 +++++++++++++++-------------------
>> drivers/net/bonding/bond_alb.c | 23 ++++++++++------------
>> drivers/net/bonding/bond_main.c | 6 ++----
>> drivers/net/bonding/bond_sysfs.c | 4 ++++
>> drivers/net/bonding/bonding.h | 41 ++++++++++++++++++++++++++++++++++++----
>> 5 files changed, 68 insertions(+), 41 deletions(-)
>>
> Thanks for the work, I was on vacation and travelling after my initial RCU
> conversion so I got a little behind with these conversions, my idea was quite
> different :-)
> Anyway, I'd also appreciate some benchmarks, also some more information on what
> type of testing did you run ?
> I've given some preliminary comments to the patches, I'll have to think more
> about them in this form.
>
> Cheers,
> Nik
>
> .
It looks like a wonderful vocation :).
I focus on the 3ad and alb mode, because the modify was manly for xmit, so my test environment was consist of 4 Intel82599 10G card, and use mode lacp ,alb.
I use iperf to test, after the patch, the performance was a little better and no problem
occurs.
>
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