From: Ian Campbell <Ian.Campbell@citrix.com>
To: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: <wei.liu2@citrix.com>, <xen-devel@lists.xenproject.org>,
<paul.durrant@citrix.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <jonathan.davies@citrix.com>
Subject: Re: [PATCH net-next] Revert "xen-netback: Aggregate TX unmap operations"
Date: Mon, 24 Mar 2014 09:26:47 +0000 [thread overview]
Message-ID: <1395653207.19365.1.camel@kazak.uk.xensource.com> (raw)
In-Reply-To: <1395422584-16213-1-git-send-email-zoltan.kiss@citrix.com>
On Fri, 2014-03-21 at 17:23 +0000, Zoltan Kiss wrote:
> This reverts commit e9275f5e2df1b2098a8cc405d87b88b9affd73e6. This commit is the
> last in the netback grant mapping series, and it tries to do more aggressive
> aggreagtion of unmap operations. However practical use showed almost no
> positive effect, whilst with certain frontends it causes significant performance
> regression.
That's a shame -- do you have any insight into why?
> Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
next prev parent reply other threads:[~2014-03-24 9:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-21 17:23 Zoltan Kiss
2014-03-24 9:26 ` Ian Campbell [this message]
2014-03-25 22:58 ` David Miller
2014-03-26 10:57 ` Zoltan Kiss
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