| commit | 0fdc6b8509f3d7663c2b5de164a5ab90173e2f19 | |
| author | Longpeng <longpeng2@huawei.com> | |
| Tue, 27 Dec 2022 07:20:14 +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 | 32ec595dff513d35a186e97fe6f003565d9f8517 | treesnapshot (tar.gz zip) |
| parent | 8771589b6f81d66969808460fddf5a85b2237ac4 | commitdiff |
vhost: configure all host notifiers in a single MR transaction
This allows the vhost device to batch the setup of all its host notifiers.
This significantly reduces the device starting time, e.g. the time spend
on enabling notifiers reduce from 376ms to 9.1ms 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: <20221227072015.3134-3-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 device to batch the setup of all its host notifiers.
This significantly reduces the device starting time, e.g. the time spend
on enabling notifiers reduce from 376ms to 9.1ms 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: <20221227072015.3134-3-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.c | diffblobblamehistory |