From: Peter Xu <peterx@redhat.com>
To: Chuang Xu <xuchuangxclwt@bytedance.com>
Cc: qemu-devel@nongnu.org, mst@redhat.com, sgarzare@redhat.com,
richard.henderson@linaro.org, pbonzini@redhat.com,
david@kernel.org, philmd@linaro.org, farosas@suse.de
Subject: Re: [RFC v1 0/2] migration: reduce bitmap sync time and make dirty pages converge much more easily
Date: Tue, 9 Dec 2025 16:06:18 -0500 [thread overview]
Message-ID: <aTiPSjseG9SMnBcd@x1.local> (raw)
In-Reply-To: <20251208120952.37563-1-xuchuangxclwt@bytedance.com>
On Mon, Dec 08, 2025 at 08:09:50PM +0800, Chuang Xu wrote:
> For a 64C256G vm with 8 vhost-user-net(32 queue per nic) and 16 vhost-user-blk(4 queue per blk),
> the sync time is as high as 250ms, while after applying this patch, the sync time is only 10ms.
This is definitely an improvement. Could I request for a split of perf
results? As the two patches do totally different things, so I think it
would make sense to know which provided how much benefits.
--
Peter Xu
prev parent reply other threads:[~2025-12-09 21:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-08 12:09 [RFC v1 0/2] migration: reduce bitmap sync time and make dirty pages converge much more easily Chuang Xu
2025-12-08 12:09 ` [RFC v1 1/2] vhost: eliminate duplicate dirty_bitmap sync when log shared by multiple devices Chuang Xu
2025-12-09 20:47 ` Peter Xu
2025-12-10 6:51 ` Jason Wang
2025-12-10 13:52 ` Chuang Xu
2025-12-08 12:09 ` [RFC v1 2/2] migration: merge fragmented clear_dirty ioctls Chuang Xu
2025-12-09 21:10 ` Peter Xu
2025-12-10 14:18 ` Chuang Xu
2025-12-10 19:45 ` Peter Xu
2025-12-09 21:06 ` Peter Xu [this message]
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