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From: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>
To: "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>,
	"f.ebner@proxmox.com" <f.ebner@proxmox.com>
Subject: Re: [pve-devel] [PATCH qemu-server] cfg2cmd: netdev: fix value for tx_queue_size
Date: Tue, 11 Jul 2023 13:52:31 +0000	[thread overview]
Message-ID: <3b8803e0342bd040ddd059a65f8beac1cae0bcdc.camel@groupe-cyllene.com> (raw)
In-Reply-To: <20230711105742.83859-1-f.ebner@proxmox.com>

Le mardi 11 juillet 2023 à 12:57 +0200, Fiona Ebner a écrit :
> 
> @Alexandre: in the commit message of 620d6b32 ("virtio-net: increase
> defaults rx|tx-queue-size to 1024") you talk about DPDK, but isn't
> vhost-user required for that? And I didn't see where we expose
> vhost-user (vhost-net is different AFAICT)?
> 
as far I remember, I thinked it was a limitation on guest side virtio-
nic driver. (as qemu was accepting up to 1024).

Should be fine to downgrade it to 256 without breaking live migration.

(for dpdk indeed it need vhost-uset, not currently implemented)




      reply	other threads:[~2023-07-11 13:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-11 10:57 Fiona Ebner
2023-07-11 13:52 ` DERUMIER, Alexandre [this message]

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