From: luferry <luferry@163.com>
To: "Dongli Zhang" <dongli.zhang@oracle.com>
Cc: "Christoph Hellwig" <hch@lst.de>, "Jens Axboe" <axboe@kernel.dk>,
"Ming Lei" <ming.lei@redhat.com>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re:Re: [PATCH] make blk_mq_map_queues more friendly for cpu topology
Date: Wed, 27 Mar 2019 17:53:49 +0800 (CST) [thread overview]
Message-ID: <6acbcebd.13280.169be91f175.Coremail.luferry@163.com> (raw)
In-Reply-To: <8e02b730-b504-50a2-64e6-72817b07e93d@oracle.com>
>
>There is lack of vector issue when number of queues is more than maxcpus as well.
>
>https://lore.kernel.org/lkml/e4afe4c5-0262-4500-aeec-60f30734b4fc@default
>
>I was going to send out patch to fix that specific case on virtio side.
>
>BTW, is your VM's virtio mmio based or pci based?
>
>As mentioned in previous email, when I was playing with firecracker by amazon,
>the virtio-blk is mmio based. Not sure if that would lead to the lack of vector
>issue.
>
>Dongli Zhang
It's pci based.
prev parent reply other threads:[~2019-03-27 9:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-25 15:26 [PATCH] make blk_mq_map_queues more friendly for cpu topology luferry
2019-03-26 7:39 ` Christoph Hellwig
2019-03-26 7:55 ` luferry
2019-03-27 8:16 ` Christoph Hellwig
2019-03-27 9:17 ` luferry
2019-03-27 9:39 ` Dongli Zhang
2019-03-27 9:53 ` luferry [this message]
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