Hi all, > -----Original Message----- > From: Yang, Zhiyong > Sent: Tuesday, December 5, 2017 2:59 PM > To: Yang, Zhiyong <[email protected]>; [email protected]; > [email protected]; [email protected] > Cc: Wang, Wei W <[email protected]>; Tan, Jianfeng > <[email protected]> > Subject: RE: [dpdk-dev] [PATCH 00/11] net/vhostpci: A new vhostpci PMD > supporting VM2VM scenario > > Hi all, > > > -----Original Message----- > > From: dev [mailto:[email protected]] On Behalf Of Zhiyong Yang > > Sent: Thursday, November 30, 2017 5:47 PM > > To: [email protected]; [email protected]; [email protected] > > Cc: Wang, Wei W <[email protected]>; Tan, Jianfeng > > <[email protected]> > > Subject: [dpdk-dev] [PATCH 00/11] net/vhostpci: A new vhostpci PMD > > supporting VM2VM scenario > > > > Vhostpci PMD is a new type driver working in guest OS which has > > ability to drive the vhostpci modern pci device, which is a new virtio > > device. > > > > The following linking is about vhostpci design: > > > > An initial device design is presented at KVM Forum'16: > > http://www.linux-kvm.org/images/5/55/02x07A-Wei_Wang-Design_of-Vhost- > > pci.pdf > > The latest device design and implementation will be posted to the QEMU > > community soon. > > > > The latest version vhostpci device code has been posted to QEMU community. > [PATCH v3 0/7] Vhost-pci for inter-VM communication > http://lists.nongnu.org/archive/html/qemu-devel/2017-12/msg00494.html > > [2016] Design of Vhost-pci by Wei Wang - YouTube linking as reference. > https://www.youtube.com/watch?v=xITj0qsaSJQ >
I miss the code in V1 as followings. Disable notifications. virtqueue[i]->used->flags = VRING_USED_F_NO_NOTIFY; I will add it in next version. It can increase throughput sharply for vhostpci/ virtio PMD loopback test. The similar performance result can be seen compared to vhost user/virtio PMD loopback test after disabling notifications. thanks Zhiyong
