互连性能变差时,检查UDP缓冲区设置,检查互连网络硬件[@more@]

[root@svr1 root]# sysctl net.core.rmem_max net.core.wmem_max net.core.rmem_default net.core.wmem_default

net.core.rmem_max = 262144

net.core.wmem_max = 262144

net.core.rmem_default = 262144

net.core.wmem_default = 262144

还可以直接从/proc/sys/net/core中读取各值

使用下列sysctl命令将这些值增加至256K

sysctl -w net.core.rmem_max = 262144

sysctl -w net.core.wmem_max = 262144

sysctl -w net.core.rmem_default = 262144

sysctl -w net.core.wmem_default = 262144