linux-kernel - Re: [PATCH net-next 4/4] net: hns3: support skb's frag page recycling based on page pool

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Message-ID: <72f6a642-2efc-b2fd-7d4e-f099b63c0703@huawei.com>
Date:   Fri, 6 Aug 2021 09:37:10 +0800
From:   Yunsheng Lin <linyunsheng@...wei.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <davem@...emloft.net>, <alexander.duyck@...il.com>,
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Subject: Re: [PATCH net-next 4/4] net: hns3: support skb's frag page recycling
 based on page pool

On 2021/8/6 9:20, Jakub Kicinski wrote:
> On Thu, 5 Aug 2021 19:05:26 +0800 Yunsheng Lin wrote:
>> This patch adds skb's frag page recycling support based on
>> the frag page support in page pool.
>>
>> The performance improves above 10~20% for single thread iperf
>> TCP flow with IOMMU disabled when iperf server and irq/NAPI
>> have a different CPU.
>>
>> The performance improves about 135%(14Gbit to 33Gbit) for single
>> thread iperf TCP flow IOMMU is in strict mode and iperf server
>> shares the same cpu with irq/NAPI.
>>
>> Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com>
> 
> This patch does not apply cleanly to net-next, please rebase 
> if you're targeting that tree.

It seems I forgot to rebase the net-next tree before doing
"git format-patch", thanks for mentioning that.

> .
>