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Message-ID: <53748db9-2efb-4e8b-9583-5fe21fc4b993@broadcom.com>
Date: Mon, 2 Jun 2025 12:00:39 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: Zak Kemble <zakkemble@...il.com>, Doug Berger <opendmb@...il.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@...adcom.com>, Andrew Lunn
<andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 0/2] net: bcmgenet: add support for GRO software
interrupt coalescing
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@...adcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
You will have to repost once net-next opens though:
https://patchwork.hopto.org/net-next.html
Thanks!
--
Florian
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