Re: [PATCH v3] virtio: increase virtqueue size for virtio-scsi and virtio-blk

2020-02-19 Thread Stefan Hajnoczi
On Fri, Feb 14, 2020 at 10:46:48AM +0300, Denis Plotnikov wrote: > The goal is to reduce the amount of requests issued by a guest on > 1M reads/writes. This rises the performance up to 4% on that kind of > disk access pattern. > > The maximum chunk size to be used for the guest disk accessing is >

[PATCH v3] virtio: increase virtqueue size for virtio-scsi and virtio-blk

2020-02-13 Thread Denis Plotnikov
The goal is to reduce the amount of requests issued by a guest on 1M reads/writes. This rises the performance up to 4% on that kind of disk access pattern. The maximum chunk size to be used for the guest disk accessing is limited with seg_max parameter, which represents the max amount of pices in