Thread (5 messages) 5 messages, 2 authors, 2025-06-09

Re: [PATCH v1 0/2] net: bcmgenet: add support for GRO software interrupt coalescing

From: Florian Fainelli <florian.fainelli@broadcom.com>
Date: 2025-06-02 19:00:42
Also in: lkml

Hi Zak,

On 5/31/25 15:48, Zak Kemble wrote:
Hey, these patches enable support for software IRQ coalescing and GRO
aggregation and applies conservative defaults which can help improve
system and network performance by reducing the number of hardware
interrupts and improving GRO aggregation ratio.
Without this patch, seeing the following with an iperf3 server running 
at a gigabit link:

00:18:19     CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal 
  %guest   %idle
00:18:20     all    0.53    0.00    9.36    0.00    8.56   18.98    0.00 
    0.00   62.57

and with your patches applied:

00:00:56     CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal 
  %guest   %idle
00:00:57     all    0.00    0.00    3.29    0.00    1.01    7.34    0.00 
    0.00   88.35

so definitively helping, thanks!

Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>

You will have to repost once net-next opens though:

https://patchwork.hopto.org/net-next.html

Thanks!
-- 
Florian
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