linux-kernel - RE: [PATCH v2 net-next 1/2] net: mana: Allow tso_max_size to go up-to GSO_MAX

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID:
 <SJ1PR21MB34325C7D269294E2BABD5644CAF22@SJ1PR21MB3432.namprd21.prod.outlook.com>
Date: Mon, 10 Feb 2025 15:42:17 +0000
From: Haiyang Zhang <haiyangz@...rosoft.com>
To: Shradha Gupta <shradhagupta@...ux.microsoft.com>,
	"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC: KY Srinivasan <kys@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan
 Cui <decui@...rosoft.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>, Long Li
	<longli@...rosoft.com>, Konstantin Taranov <kotaranov@...rosoft.com>,
	Souradeep Chakrabarti <schakrabarti@...ux.microsoft.com>, Erick Archer
	<erick.archer@...look.com>, Shradha Gupta <shradhagupta@...rosoft.com>
Subject: RE: [PATCH v2 net-next 1/2] net: mana: Allow tso_max_size to go up-to
 GSO_MAX_SIZE



> -----Original Message-----
> From: Shradha Gupta <shradhagupta@...ux.microsoft.com>
> Sent: Sunday, February 9, 2025 11:40 PM
> To: linux-hyperv@...r.kernel.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Cc: Shradha Gupta <shradhagupta@...ux.microsoft.com>; KY Srinivasan
> <kys@...rosoft.com>; Haiyang Zhang <haiyangz@...rosoft.com>; Wei Liu
> <wei.liu@...nel.org>; Dexuan Cui <decui@...rosoft.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>; Long Li <longli@...rosoft.com>; Konstantin
> Taranov <kotaranov@...rosoft.com>; Souradeep Chakrabarti
> <schakrabarti@...ux.microsoft.com>; Erick Archer
> <erick.archer@...look.com>; Shradha Gupta <shradhagupta@...rosoft.com>
> Subject: [PATCH v2 net-next 1/2] net: mana: Allow tso_max_size to go up-
> to GSO_MAX_SIZE
> 
> Allow the max aggregated pkt size to go up-to GSO_MAX_SIZE for MANA NIC.
> This patch only increases the max allowable gso/gro pkt size for MANA
> devices and does not change the defaults.
> Following are the perf benefits by increasing the pkt aggregate size from
> legacy gso_max_size value(64K) to newer one(up-to 511K)
> 
> for i in {1..10}; do netperf -t TCP_RR  -H 10.0.0.5 -p50000 -- -
> r80000,80000
> -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done
> 
> min	p90	p99	Throughput		gso_max_size
> 93	171	194	6594.25
> 97	154	180	7183.74
> 95	165	189	6927.86
> 96	165	188	6976.04
> 93	154	185	7338.05			64K
> 93	168	189	6938.03
> 94	169	189	6784.93
> 92	166	189	7117.56
> 94	179	191	6678.44
> 95	157	183	7277.81
> 
> min	p90	p99	Throughput
> 93	134	146	8448.75
> 95	134	140	8396.54
> 94	137	148	8204.12
> 94	137	148	8244.41
> 94	128	139	8666.52			80K
> 94	141	153	8116.86
> 94	138	149	8163.92
> 92	135	142	8362.72
> 92	134	142	8497.57
> 93	136	148	8393.23
> 
> Tested on azure env with Accelerated Networking enabled and disabled.
> 
> Signed-off-by: Shradha Gupta <shradhagupta@...ux.microsoft.com>

Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>