@gavin has cherry-picked some commits and we would like you to test and provide feedback:
These are Gavin's comments: ---- @tinoco, I've backported the 2 patches you mentioned in the bug description. Could you help to verify if the backported kernel can speed up the performance? The kernel source is in: http://kernel.ubuntu.com/git/gavinguo/ubuntu-trusty-amd64.git/log/?h=sf00088101 The kernel package: http://kernel.ubuntu.com/~gavinguo/sf00088101/ - The first commit as following can be cleanly cherry-picked: commit 9b174d88c257150562b0101fcc6cb6c3cb74275c Author: Jesse Gross <je...@nicira.com> Date: Tue Dec 30 19:10:15 2014 -0800 net: Add Transparent Ethernet Bridging GRO support. - The second has some conflict and I tried to fix that: commit 66e5133f19e901a044fa5eaeeb6ecff4545839e5 Author: Toshiaki Makita <makita.toshi...@lab.ntt.co.jp> Date: Mon Jun 1 21:55:06 2015 +0900 vlan: Add GRO support for non hardware accelerated vlan - Despite I fixed the conflict, the kernel cannot be built and still need the commit: commit 0e82d0187ce8327aca20ec9e4e32ee10fbd229cb Author: David S. Miller <da...@davemloft.net> Date: Mon Jun 1 14:56:09 2015 -0700 net: Add priority to packet_offload objects. Because in the Vivid kernel, there is no priority member in the packet_offload struct. Please tell me if you find anything wrong, sorry for not familiar with the network subsystem. ---- Thank you Rafael Tinoco ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Changed in: linux (Ubuntu Vivid) Status: Triaged => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1477466 Title: Low performance when using vlan over VxLan Status in linux package in Ubuntu: In Progress Status in linux source package in Vivid: In Progress Bug description: We see a performance issue when running traffic over vlan interface that created over VxLAN interface. We reach 24 Gbps over the VxLan interface while we reach only 4 Gbps over the VLAN interface. Turned out that GRO isn't supported for VLAN over VxLAN. The following upstream commits fix this issue. commit 66e5133f19e901a044fa5eaeeb6ecff4545839e5 Author: Toshiaki Makita <makita.toshi...@lab.ntt.co.jp> Date: Mon Jun 1 21:55:06 2015 +0900 vlan: Add GRO support for non hardware accelerated vlan Currently packets with non-hardware-accelerated vlan cannot be handled by GRO. This causes low performance for 802.1ad and stacked vlan, as their vlan tags are currently not stripped by hardware. This patch adds GRO support for non-hardware-accelerated vlan and improves receive performance of them. commit 9b174d88c257150562b0101fcc6cb6c3cb74275c Author: Jesse Gross <je...@nicira.com> Date: Tue Dec 30 19:10:15 2014 -0800 net: Add Transparent Ethernet Bridging GRO support. Currently the only tunnel protocol that supports GRO with encapsulated Ethernet is VXLAN. This pulls out the Ethernet code into a proper layer so that it can be used by other tunnel protocols such as GRE and Geneve. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1477466/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
