[mythtv-users] Optimising a diskless frontend

[Simon Tennant]

On Mon, Feb 27, 2006 at 09:46:21PM -0500, Matt Mossholder wrote:
> You might want to investigate these sysctl settings for both NFS and
> CIFS/SMB:
> 
> net.ipv4.tcp_window_scaling=1
> net.core.rmem_max = 16777216
> net.core.wmem_max = 16777216
> net.core.rmem_default = 5242880
> net.core.wmem_default = 5242880
> net.ipv4.tcp_rmem = 262144 5242880 16777216
> net.ipv4.tcp_wmem = 262144 5242880 16777216
> net.core.netdev_max_backlog=2500

Thanks Matt.  I tried these options and they sped things up by about
20%.  Thanks.  I would have hoped that TCP window scaling is preset to
"1" on most kernels though.

> Another thing to consider is your choice of NIC card... newer NICs have
> checksum and/or segmentation offloading, which can also make things a
> bit peppier.

Stuck with onboard Nvidia "forcedeth" card.
-- 
Simon Tennant ________________ http://imaginator.com/~simon/contact