Re: [Xen-devel] [PATCH net-next] Revert "xen-netback: Aggregate TX unmap operations"

[David Miller <davem@xxxxxxxxxxxxx>]

From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Mon, 24 Mar 2014 09:26:47 +0000

> 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@xxxxxxxxxx>
> 
> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Applied, thanks.

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