[mythtv-users] Optimising a diskless frontend

Matt Mossholder matt at mossholder.com
Wed Mar 1 17:01:47 UTC 2006


On Wed, 2006-03-01 at 09:33 -0600, Mario Limonciello wrote:
> On Mon, 2006-02-27 at 21:46 -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
> > 
> Should I look to set these on my netboot FE, my backend, or both?
> 
> 
> Mario

Both. The most of the settings are related to how much memory is used
for buffering network transactions. FE and BE will both benefit. I'd
also encourage experimenting with  and researching the values if you are
memory constrained, as they may be overkill. If you have the memory to
spare and just want a quick fix, then it may just be easier to use the
values I provided. 

		--Matt



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