[openib-general] [RFC] determining which changes in svn to merge upstream or remove

Sean Hefty sean.hefty at intel.com
Tue Sep 26 08:48:11 PDT 2006


>Connections taking 60 sec to create is an issue.
>Can you please explain how the fact that some connections are used affect
>the time it takes to send the response?

This is in userspace, and IMO, an application issue.  Threads using established
connections simply begin consuming all processor time.  This is while running
under heavy load and trying to scale up the application.

>Why would sending MRA be faster than sending the response?

An MRA could be sent directly by the RDMA CM in the kernel in a REQ callback,
whereas the response requires the userspace application to poll the REQ and
generate a REP.

- Sean




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