From: openlui <openlui@126.com>
To: "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Question about seperating request and response ring in PV network
Date: Fri, 10 Jul 2015 09:41:10 +0800 (CST) [thread overview]
Message-ID: <5d0bc7e7.177a0.14e759f98cd.Coremail.openlui@126.com> (raw)
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Hi, all:
I am trying to improve the performance of netfront/netback, and I found that there were some discussion about PV network performance improvement in devel mailing list ([1]). The proposals mentioned in [1] are helpful, such as multipage ring, multiqueue, etc, and some of them have already merged into upstream.
However, I am wondering if we have already used multipage ring, why "seperate request and response ring" listed in [1] is also helpful for performance improvement? I have read the implementation of vmxnet3 driver, it does have separated request and response rings, but I can not understand what the advantage of this method is.
Thanks.
[1] http://lists.xen.org/archives/html/xen-devel/2013-05/msg01904.html
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Best Regards
Lui
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Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-10 1:41 openlui [this message]
2015-07-10 8:09 ` Question about seperating request and response ring in PV network Wei Liu
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