On Wed, 16 Apr 2008, J Potter wrote:
Is there an easy way to get a count of the number of active socket connections, or even better, number of socket connections in the time_wait state? (Something lightweight... under /proc/sys/net/ipv4/? I'd like to avoid the impact of listing out all the connections a-la netstat.)
[dag@rhun ~]$ dstat -t --tcp -----time----- ----tcp-sockets---- date/time |lis act syn tim clo 18-04 12:24:19| 4 9 0 4 0 18-04 12:24:20| 4 9 0 4 0 18-04 12:24:21| 4 9 0 4 0 18-04 12:24:22| 4 9 0 4 0
Although it is using /proc/net/tcp
You can use --debug to see how much time in milliseconds dstat spends on getting that information. Of course that number is impacted by the load on the system as well.
[dag@rhun ~]$ dstat -t --tcp --debug Module dstat_time Module dstat_tcp requires ['/proc/net/tcp', '/proc/net/tcp6'] -------time------- ----tcp-sockets---- date/time |lis act syn tim clo 18-04 12:26:17.932| 4 9 0 4 0 11.76ms 18-04 12:26:18.935| 4 9 0 4 0 25.83ms 18-04 12:26:19.936| 4 9 0 4 0 14.82ms 18-04 12:26:20.937| 4 9 0 4 0 14.51ms
Kind regards,