diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-08-21 15:53:55 -0700 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-09-08 13:29:14 +0300 |
| commit | 53eab6fd2777dc7cb338519827e23f8bf892903e (patch) | |
| tree | 29fc9d97ab032f82cd49bad8737cd4c6d0ad223c /fs/romfs | |
| parent | 64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff) | |
| download | blackbird-obmc-linux-53eab6fd2777dc7cb338519827e23f8bf892903e.tar.gz blackbird-obmc-linux-53eab6fd2777dc7cb338519827e23f8bf892903e.zip | |
virtio-blk: use VIRTIO_BLK_F_WCE and VIRTIO_BLK_F_CONFIG_WCE in virtio1
VIRTIO_BLK_F_CONFIG_WCE is important in order to achieve good performance
(up to 2x, though more realistically +30-40%) in latency-bound workloads.
However, it was removed by mistake together with VIRTIO_BLK_F_FLUSH.
It will be restored in the next revision of the virtio 1.0 standard, so
do the same in Linux.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'fs/romfs')
0 files changed, 0 insertions, 0 deletions
