On Tue, Oct 31, 2023 at 04:35:19AM +0100, Mirsad Todorovac wrote:
On 10/31/23 02:21, Andrew Lunn wrote:
I will not contradict, but the cummulative amount of memory barriers on each MMIO read/write
in each single one of the drivers could amount to some degrading of overall performance and
latency in a multicore system.
For optimisations, we like to see benchmark results which show some
improvements. Do you have any numbers?
Hi, Andrew,
Thank you for your interest in RTL NIC driver optimisations.
My knowledge about the timing costs of synchronisation is mostly theoretical.
The kernel tends to be very practical. Maybe try to turn the
theoretical knowledge into practice. Write a benchmark test, or see if
any of the existing RT Linux tests show there is a real problem here,
and your changes fix it.