Hi David, Marcin,
On Tue, 21 Feb 2017 11:16:02 -0500 David Miller wrote:
> From: Jisheng Zhang
> Date: Tue, 21 Feb 2017 12:37:40 +0800
>
> > Thanks for your review.
> >
> > The measurement is simple: record how much time we spent in mvneta_rx_swbm()
> > for receiving 1GB data, something as bel
Hi Jisheng,
2017-02-21 17:16 GMT+01:00 David Miller :
> From: Jisheng Zhang
> Date: Tue, 21 Feb 2017 12:37:40 +0800
>
>> Thanks for your review.
>>
>> The measurement is simple: record how much time we spent in mvneta_rx_swbm()
>> for receiving 1GB data, something as below:
>
> Please use a stand
From: Jisheng Zhang
Date: Tue, 21 Feb 2017 12:37:40 +0800
> Thanks for your review.
>
> The measurement is simple: record how much time we spent in mvneta_rx_swbm()
> for receiving 1GB data, something as below:
Please use a standard tool for measuring performance, rather than profiling
the driv
Hi Gregory,
On Mon, 20 Feb 2017 15:21:35 +0100 Gregory CLEMENT wrote:
> Hi Jisheng,
>
> On lun., févr. 20 2017, Jisheng Zhang wrote:
>
> > In hot code path such as mvneta_rx_swbm(), we access fields of rx_desc
> > and tx_desc. These DMA descs are allocated by dma_alloc_coherent, they
> > are
Hi Jisheng,
On lun., févr. 20 2017, Jisheng Zhang wrote:
> In hot code path such as mvneta_rx_swbm(), we access fields of rx_desc
> and tx_desc. These DMA descs are allocated by dma_alloc_coherent, they
> are uncacheable if the device isn't cache coherent, reading from
> uncached memory is fai
In hot code path such as mvneta_rx_swbm(), we access fields of rx_desc
and tx_desc. These DMA descs are allocated by dma_alloc_coherent, they
are uncacheable if the device isn't cache coherent, reading from
uncached memory is fairly slow.
patch1 reuses the read out status to getting status field o
