On Thu, 2017-01-19 at 12:55 +0200, Roman Yeryomin wrote:
> On 17 January 2017 at 21:20, Eric Dumazet wrote:
> > Note that at 100M, 64 rx descriptors have a 8 ms max latency.
> >
> > Switching to 256 also multiply by 4 the latency -> 32 ms latency.
> >
> > Presumably switching to NAPI and GRO wou
On 17 January 2017 at 21:20, Eric Dumazet wrote:
> On Tue, 2017-01-17 at 20:27 +0200, Roman Yeryomin wrote:
>> On 17 January 2017 at 19:58, David Miller wrote:
>> > From: Roman Yeryomin
>> > Date: Tue, 17 Jan 2017 19:32:36 +0200
>> >
>> >> Having larger ring sizes almost eliminates rx fifo overf
On Tue, 2017-01-17 at 20:27 +0200, Roman Yeryomin wrote:
> On 17 January 2017 at 19:58, David Miller wrote:
> > From: Roman Yeryomin
> > Date: Tue, 17 Jan 2017 19:32:36 +0200
> >
> >> Having larger ring sizes almost eliminates rx fifo overflow, thus
> >> improving performance.
> >> This patch re
From: Roman Yeryomin
Date: Tue, 17 Jan 2017 20:27:57 +0200
> On 17 January 2017 at 19:58, David Miller wrote:
>> From: Roman Yeryomin
>> Date: Tue, 17 Jan 2017 19:32:36 +0200
>>
>>> Having larger ring sizes almost eliminates rx fifo overflow, thus improving
>>> performance.
>>> This patch redu
On 17 January 2017 at 19:58, David Miller wrote:
> From: Roman Yeryomin
> Date: Tue, 17 Jan 2017 19:32:36 +0200
>
>> Having larger ring sizes almost eliminates rx fifo overflow, thus improving
>> performance.
>> This patch reduces rx overflow occurence by approximately 1000 times (from
>> ~25k
From: Roman Yeryomin
Date: Tue, 17 Jan 2017 19:32:36 +0200
> Having larger ring sizes almost eliminates rx fifo overflow, thus improving
> performance.
> This patch reduces rx overflow occurence by approximately 1000 times (from
> ~25k down to ~25 times per 3M frames)
Those numbers don't mean
Having larger ring sizes almost eliminates rx fifo overflow, thus improving
performance.
This patch reduces rx overflow occurence by approximately 1000 times (from ~25k
down to ~25 times per 3M frames)
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 4 ++--
1 file changed, 2