Hi all,
I saw this at http://nsmwiki.org/Linux_Performance and wondered if you
all would recommend tweaks like these on a system running PF_RING?
Would it have much potential to further reduce packet loss?
/etc/sysctl.conf settings:
* increase TCP max buffer size setable using setsockopt()
net.core.rmem_default = 8388608
net.core.wmem_default = 8388608
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
* Increase Linux auto tuning TCP buffer limits: min, default, and
max number of bytes to use, set max to at least 4MB, or higher if you
use very high BDP paths
net.ipv4.tcp_rmem = 1048576 4194304 16777216
net.ipv4.tcp_wmem = 1048576 4194304 16777216
NIC Optimization
* Find the maximum RX for your NIC, and then set it to that:
ethtool -g ethX
ethtool -G ethX rx <your max RX>
Thanks
Kevin
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