Re: [Qemu-devel] [PATCH 0/3] nbd: use TCP_NODELAY

[Paolo Bonzini <pbonzini@redhat.com>]

Il 15/04/2013 16:14, Stefan Hajnoczi ha scritto:
> The nbd block driver should use TCP_NODELAY.  Nick Thomas <nick@bytemark.co.uk>
> measured a 40 millisecond latency added by the Naggle algorithm.
> 
> This series turns on TCP_NODELAY.  This requires that we use TCP_CORK to
> efficiently send NBD requests that contain a payload after the header.
> 
> Finally, fix a bug where we forget to unlock a mutex when sending fails.
> 
> Stefan Hajnoczi (3):
>   nbd: unlock mutex in nbd_co_send_request() error path
>   nbd: use TCP_CORK in nbd_co_send_request()
>   nbd: set TCP_NODELAY
> 
>  block/nbd.c | 25 +++++++++++++++++++------
>  1 file changed, 19 insertions(+), 6 deletions(-)
> 

Thanks, applied all to nbd-next.

I also marked patch 1 for stable branches.

Paolo