On Tue, 11 Sep 2007 10:00:21 -0700 Rick Jones <[EMAIL PROTECTED]> wrote:
> Eric Dumazet wrote: > > Sridhar Samudrala a écrit : > > > >> On Mon, 2007-09-10 at 16:13 -0700, Rick Jones wrote: > >> > >>> Return some useful information such as the maximum listen backlog and > >>> the current listen backlog in the tcp_info structure and have that > >>> match what one can see in /proc/net/tcp and /proc/net/tcp6. > >> > >> > >> If we are also exporting max listen backlog, another place to > >> consider adding this is to tcp_diag_get_info() called via INET_DIAG_INFO. > >> Current listen backlog is returned in inet_diag_msg->idiag_rqueue. > >> max listen backlog can be returned in inet_diag_msg->idiag_wqueue. > >> > > > > I agree, /proc/net/tcp is deprecated nowadays... > > What takes its place? ss command from iproute2 package ( http://linux-net.osdl.org/index.php/Iproute2 ) Problem with /proc/net/tcp is its quadratic time O(N^2) to output N lines... On a loaded server : # time ss|wc -l 145695 real 0m9.383s user 0m4.656s sys 0m0.632s # time netstat -an|wc -l ^C after some minutes .... no way... real 3m23.825s user 0m0.744s sys 3m18.721s > > > Rick, could you add this part in your patch, and add my Sign-off-by ? > > My pleasure. > > I have a small test program for the tcp_info bit - where do I go to find > how the inet diag stuff works? ss state listen > > BTW, what do people think about doing the same thing with the rxqueue > and txqueue's of netstat output? > I dont understand this question, I thought your patch already handled this (for the txqueue, since rxqueue is already there), as netstat uses /proc/net/tcp (unfortunatly) - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
