| commit | e66f2311d680de28e1cd95570822c4e17841120d | |
| author | Longpeng <longpeng2@huawei.com> | |
| Tue, 27 Dec 2022 07:20:15 +0000 (27 15:20 +0800) | ||
| committer | Michael S. Tsirkin <mst@redhat.com> | |
| Sun, 8 Jan 2023 06:54:23 +0000 (8 01:54 -0500) | ||
| tree | 62d56fb32ad549d9b47f1b3d8f5fbbfb3698001e | treesnapshot (tar.gz zip) |
| parent | 0fdc6b8509f3d7663c2b5de164a5ab90173e2f19 | commitdiff |
vdpa: commit all host notifier MRs in a single MR transaction
This allows the vhost-vdpa device to batch the setup of all its MRs of
host notifiers.
This significantly reduces the device starting time, e.g. the time spend
on setup the host notifier MRs reduce from 423ms to 32ms for a VM with
64 vCPUs and 3 vhost-vDPA generic devices (vdpa_sim_blk, 64vq per device).
Signed-off-by: Longpeng <longpeng2@huawei.com>
Message-Id: <20221227072015.3134-4-longpeng2@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This allows the vhost-vdpa device to batch the setup of all its MRs of
host notifiers.
This significantly reduces the device starting time, e.g. the time spend
on setup the host notifier MRs reduce from 423ms to 32ms for a VM with
64 vCPUs and 3 vhost-vDPA generic devices (vdpa_sim_blk, 64vq per device).
Signed-off-by: Longpeng <longpeng2@huawei.com>
Message-Id: <20221227072015.3134-4-longpeng2@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
| hw/virtio/vhost-vdpa.c | diffblobblamehistory |