Messages in this thread | | | From | Yongji Xie <> | Date | Mon, 19 Dec 2022 14:39:09 +0800 | Subject | Re: [PATCH v2 09/11] vduse: Add enable_irq_wq sysfs interface for virtqueues |
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On Fri, Dec 16, 2022 at 1:43 PM Jason Wang <jasowang@redhat.com> wrote: > > On Mon, Dec 5, 2022 at 5:03 PM Xie Yongji <xieyongji@bytedance.com> wrote: > > > > Add enable_irq_wq sysfs interface to control whether > > use workqueue to inject irq or not. The vhost-vdpa case > > can benefit from it. > > Do we have a benchmark result for this? >
It can reduce 2~3 us latency in our sync I/O test.
> Or I wonder if we can extend set_vq_cb() by associating an eventfd > then VDUSE can signal that eventfd directly? >
It looks good to me. I can try this way in v3.
Thanks, Yongji
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