Re: [PATCH V3] virtio-fs: Improved request latencies when Virtio queue is full

2023-06-05 Thread Vivek Goyal
On Fri, Jun 02, 2023 at 03:32:26PM +0200, Peter-Jan Gootzen wrote: > When the Virtio queue is full, a work item is scheduled > to execute in 1ms that retries adding the request to the queue. > This is a large amount of time on the scale on which a > virtio-fs device can operate. When using a DPU th

Re: [PATCH V3] virtio-fs: Improved request latencies when Virtio queue is full

2023-06-05 Thread Stefan Hajnoczi
On Fri, Jun 02, 2023 at 03:32:26PM +0200, Peter-Jan Gootzen wrote: > When the Virtio queue is full, a work item is scheduled > to execute in 1ms that retries adding the request to the queue. > This is a large amount of time on the scale on which a > virtio-fs device can operate. When using a DPU th

[PATCH V3] virtio-fs: Improved request latencies when Virtio queue is full

2023-06-02 Thread Peter-Jan Gootzen via Virtualization
When the Virtio queue is full, a work item is scheduled to execute in 1ms that retries adding the request to the queue. This is a large amount of time on the scale on which a virtio-fs device can operate. When using a DPU this is around 40us baseline without going to a remote server (4k, QD=1). Thi