From: "Michael S. Tsirkin" <mst@redhat.com>
To: Yang Dongshan <east.moutain.yang@gmail.com>
Cc: qemu-devel@nongnu.org, jasowang@redhat.com, qemu-stable@nongnu.org
Subject: Re: [PATCH] Update event idx if guest has made extra buffers during double check
Date: Mon, 24 Jun 2024 06:24:32 -0400 [thread overview]
Message-ID: <20240624062345-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CALrP2iV14404dq+5xO8Ziq4fEuacvkU=SjJLT=FJGLAq1Xanhg@mail.gmail.com>
On Mon, Jun 17, 2024 at 09:51:33PM +0800, Yang Dongshan wrote:
> Similar to the first check, if the buffer size still can't satisfy the request,
> notify the
> guest with the updated shadow_avail_idx, it's better than the old one.
So it's an optimization then? Same as any optimization, it should
come with measurements showing the performance benefit.
--
MST
prev parent reply other threads:[~2024-06-24 10:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-13 2:21 [PATCH] Update event idx if guest has made extra buffers during double check thomas
2024-06-17 2:15 ` Jason Wang
2024-06-17 10:58 ` Michael S. Tsirkin
2024-06-17 13:51 ` Yang Dongshan
2024-06-24 10:24 ` Michael S. Tsirkin [this message]
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