On 6/29/2018 1:17 PM, Rafal Kozik wrote:
> From: Kozik
>
> Write combining (WC) increases NIC performance by making better
> utilization of PCI bus, but cannot be use by all PMD.
>
> To get internal_addr memory need to be mapped. But as memory could not be
> mapped twice: with and without WC it
On 6/29/2018 1:17 PM, Rafal Kozik wrote:
> From: Kozik
>
> Write combining (WC) increases NIC performance by making better
> utilization of PCI bus, but cannot be use by all PMD.
>
> To get internal_addr memory need to be mapped. But as memory could not be
> mapped twice: with and without WC it
> How can I confirm this silently fall-back behavior, is there any log can I
> turn
> on in kernel or anything from proc/sysfs?
I cannot find any.
I check it by measuring write speed.
2018-06-29 14:17 GMT+02:00 Rafal Kozik :
> From: Kozik
>
> Write combining (WC) increases NIC performance by ma
From: Kozik
Write combining (WC) increases NIC performance by making better
utilization of PCI bus, but cannot be use by all PMD.
To get internal_addr memory need to be mapped. But as memory could not be
mapped twice: with and without WC it should be skipped for WC. [1]
To do not spoil other dr
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