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From: Long Li <longli@microsoft.com>
To: Ferruh Yigit <ferruh.yigit@amd.com>,
	Alan Elder <alan.elder@microsoft.com>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Cc: "dev@dpdk.org" <dev@dpdk.org>, stephen <stephen@networkplumber.org>
Subject: RE: [PATCH v4] net/netvsc: fix number Tx queues > Rx queues
Date: Wed, 17 Apr 2024 23:45:23 +0000	[thread overview]
Message-ID: <SJ1PR21MB345729093CA7346DE8CB1EFECE0F2@SJ1PR21MB3457.namprd21.prod.outlook.com> (raw)
In-Reply-To: <2db62108-c655-4e00-8cf6-045a98f7d37e@amd.com>

 
> This introduced additional check in Rx path, not sure what is the performance
> impact.
> 
> I can see Long already acked the v3, I just want to double check.
> If Tx queue number > Rx queue number is not a common usecase, perhaps it can
> be an option to forbid it instead of getting performance hit.
> Or it can be possible to have a dedicated Rx queue, like queue_id 0, for Tx
> completion events for Tx queue_id > Rx queue number, etc..
> 
> But Long if you prefer to continue with this patch, please ack it and I can continue
> with it.

Ferruh, thank you for raising this concern. We will run some tests to evaluate performance impact of this patch.

Will update soon.

Long

  reply	other threads:[~2024-04-17 23:45 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-29 19:29 [PATCH] " Alan Elder
2024-02-29 21:53 ` Stephen Hemminger
2024-03-01  2:03   ` Long Li
2024-03-08 18:21     ` Alan Elder
2024-03-08 18:09 ` [PATCH v2] " Alan Elder
2024-03-11 22:31   ` Ferruh Yigit
2024-03-12 19:08   ` Long Li
2024-03-19 14:16     ` [PATCH v3] " Alan Elder
2024-03-19 18:40       ` Long Li
2024-04-11 11:38       ` Ferruh Yigit
2024-04-11 20:45         ` [EXTERNAL] " Alan Elder
2024-04-12 10:23           ` Ferruh Yigit
2024-04-12 16:50             ` Alan Elder
2024-04-15 17:54               ` Ferruh Yigit
2024-04-15 14:40       ` [PATCH v4] " Alan Elder
2024-04-15 18:11         ` Ferruh Yigit
2024-04-17 23:45           ` Long Li [this message]
2024-05-01  7:43         ` Morten Brørup
2024-05-20 13:52           ` Ferruh Yigit
2024-03-19 14:19     ` [PATCH v2] " Alan Elder

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