I tested mTCP and have positive result with it https://github.com/eunyoung14/mtcp, I used the sample app epwget as a tcp load generator, it can generate million of concurrent tcp connection on used cheap Dell server with Intel I350 NIC or Intel 82576
On Fri, Oct 9, 2015 at 4:19 PM, Wiles, Keith <keith.wiles at intel.com> wrote: > Here are some notes from the DPDK Network Stack discussion, I can remember > please help me fill in anything I missed. > > Items I remember we talked about: > > * The only reason for a DPDK TCP/IP stack is for performance and possibly > lower latency > * Meaning the developer is willing to re-write or write his > application to get the best performance. > * A TCP/IPv4/v6 stack is the minimum stack we need to support > applications linked with DPDK. > * SCTP is also another protocol that maybe required > * TCP is the primary protocol, usage model for most use cases > * Stack must be able to terminate TCP traffic to an application linked > to DPDK > * For DPDK the customer is looking for fast applications and is willing > to write the application just for DPDK network stack > * Converting an existing application could be done, but the design is > for performance and may require a lot of changes to an application > * Using an application API that is not Socket is fine for high > performance and maybe the only way we get best performance. > * Need to supply a Socket layer interface as a option if customer is > willing to take a performance hit instead of rewriting the application > * Native application acceleration is desired, but not required when using > DPDK network stack > * We have two projects related to network stack in DPDK > * The first one is porting some TCP/IP stack to DPDK plus it needs to > give a reasonable performance increase over native Linux applications > * The stack code needs to be BSD/MIT like licensed (Open Sourced) > * The stack should be up to date with the latest RFCs or at least > close > * A stack could be written for DPDK (not using a existing code > base) and its environment for best performance > * Need to be able to configure the DPDK stack(s) from the Linux > command line tools if possible > * Need a DPDK specific application layer API for application to > interface with the network stack > * Could have a socket layer API on top of the specific API for > applications needing to use sockets (not expected to be the best performance) > * The second item is figuring out a new IPC for East/West traffic > within the same system. > * The design needs to improve performance between applications and > be transparent to the application when the remote end is not on the same > system. > * The new IPC path should be agnostic to local or remote end points > * Needs to be very fast compared to current Linux IPC designs. > (Will OVS work here?) > > Did I miss any details or comments, please reply and help me correct the > comment or understanding. > > Thanks for everyone attending and packing into a small space. > > ? > Regards, > ++Keith Wiles > Intel Corporation
