[ovs-dev] thundering herd wakeup of handler threads

[Aaron Conole]

David Ahern <dsahern at gmail.com> writes:

> On 12/16/19 2:42 PM, Aaron Conole wrote:
>> Can you try the following and see if your scalability issue is
>> addressed?  I think it could be better integrated, but this is a
>> different quick 'n dirty.
>
> your patch reduces the number of threads awakened, but it is still
> really high - 43 out of 71 handler threads in one test.

Thanks for getting back to me (sorry for the late response, catching
up).  I'll take a closer look.  I haven't thought about adding
EPOLLEXCLUSIVE to the poll block change, so maybe that will address it
completely, or maybe there's a different approach.