Stephen Hemminger wrote: > On Fri, 14 Dec 2007 09:48:32 +0100 > Michael Kerrisk <mtk.manpages@xxxxxxxxxxxxxx> wrote: > >> Hello Linux networking folk, >> >> I received the patch below for the tcp.7 man page. Would anybody here be >> prepared to review the new material / double check the details? >> >> Cheers, >> >> Michael >> >> -------- Original Message -------- >> Subject: [patch] add tcp congestion control relevant parts >> Date: Wed, 12 Dec 2007 16:40:23 +0100 >> From: Thomas Egerer <thomas.Egerer@xxxxxxxxxxx> >> To: mtk.manpages@xxxxxxxxx >> CC: linux-man@xxxxxxxxxxxxxxx >> >> Hello *, >> >> man-pages version : 2.70 from http://www.kernel.org/pub/linux/docs/man-pages/ >> All required information were obtained by reading the kernel >> code/documentation. >> I'm not sure, whether it is completely bullet proof on when the sysctl >> variables/socket option first appeared in the kernel, so you might as well >> drop this information, but I'm pretty sure about how it works. >> Here we go with my patch: >> >> diff -ru man-pages-2.70/man7/tcp.7 man-pages-2.70.new/man7/tcp.7 >> --- man-pages-2.70/man7/tcp.7 2007-11-24 14:33:34.000000000 +0100 >> +++ man-pages-2.70.new/man7/tcp.7 2007-12-12 16:34:52.000000000 +0100 >> @@ -177,8 +177,6 @@ >> .\" FIXME As at Sept 2006, kernel 2.6.18-rc5, the following are >> .\" not yet documented (shown with default values): >> .\" >> -.\" /proc/sys/net/ipv4/tcp_congestion_control (since 2.6.13) >> -.\" bic >> .\" /proc/sys/net/ipv4/tcp_moderate_rcvbuf >> .\" 1 >> .\" /proc/sys/net/ipv4/tcp_no_metrics_save >> @@ -224,6 +222,20 @@ >> are reserved for the application buffer. >> A value of 0 >> implies that no amount is reserved. >> +.TP >> +.BR tcp_allowed_congestion_control \ >> +" (String; default: cubic reno) (since 2.6.13) " >> +Show/set the congestion control choices available to non-privileged >> +processes. The list is a subset of those listed in >> +.IR tcp_available_congestion_control "." >> +Default is "cubic reno" and the default setting >> +.RI ( tcp_congestion_control ). >> +.TP >> +.BR tcp_available_congestion_control \ >> +" (String; default: cubic reno) (since 2.6.13) " >> +Lists the TCP congestion control algorithms available on the system. This >> value >> +can only be changed by loading/unloading modules responsible for congestion >> +control. >> .\" >> .\" The following is from 2.6.12: Documentation/networking/ip-sysctl.txt >> .TP >> @@ -257,6 +269,17 @@ >> Allows two flows sharing the same connection to converge >> more rapidly. >> .TP >> +.BR tcp_congestion_control " (String; default: cubic reno) (since 2.6.13) " >> +Determines the congestion control algorithm used for newly created TCP >> +sockets. By default Linux uses cubic with reno as fallback. If you want >> +to have more control over the algorithm used, you must enable the symbol >> +CONFIG_TCP_CONG_ADVANCED in your kernel config. > > You can choose the default congestion control as well as part of the kernel > configuration. Hi Stephen, Other than this, did the doc patch look okay? (I'm not sure whether there was an implied ACK in your message for the rest of the patch.) Cheers, Michael -- Michael Kerrisk Maintainer of the Linux man-pages project http://www.kernel.org/doc/man-pages/ Want to report a man-pages bug? Look here: http://www.kernel.org/doc/man-pages/reporting_bugs.html - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
