Question: How to check to current values for these kernel parameters?
- net.core.netdev_max_backlog
- fs.file-max
- net.ipv4.tcp_max_syn_backlog
- net.core.somaxconn
The linux system could not support to method for directly check these values but we can check to using by below commands :
# netstat -an | grep -c SYN_RECV # netstat -s
Also, those parameter can be checked from below paths:
net.core.netdev_max_backlog ----> /proc/sys/net/core/netdev_max_backlog net.ipv4.tcp_max_syn_backlog ----> /proc/sys/net/ipv4/tcp_max_syn_backlog net.core.somaxconn ----> /proc/sys/net/core/somaxconn
These commands help to calculate receiving packet in server.
file-max check:
# cat /proc/sys/fs/file-nr 672 0 175158 -- -- ------ | | +------ Max | +------------ Available +---------------- Current allocated