X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=Documentation%2Fsysctl%2Fnet.txt;h=cbd05ffc606baa1ca06c59ca0c2ab19cac6c8e62;hb=98edb6ca4174f17a64890a02f44c211c8b44fb3c;hp=df38ef046f8d1372ef2ff0d45debb7b15c04f64c;hpb=4d3383d0adb6d1047fb9ee3edd9dc05e4d2184f0;p=~andy%2Flinux

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index df38ef046f8..cbd05ffc606 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -84,6 +84,16 @@ netdev_max_backlog
 Maximum number  of  packets,  queued  on  the  INPUT  side, when the interface
 receives packets faster than kernel can process them.
 
+netdev_tstamp_prequeue
+----------------------
+
+If set to 0, RX packet timestamps can be sampled after RPS processing, when
+the target CPU processes packets. It might give some delay on timestamps, but
+permit to distribute the load on several cpus.
+
+If set to 1 (default), timestamps are sampled as soon as possible, before
+queueing.
+
 optmem_max
 ----------