Update README.md

README.md

@@ -28,8 +28,8 @@ and then apply your limitation there.
 
 This is CRAP and a pain in the ass for performances, don't use it! 
 
-### NOTE On Linux Kernel and HyperThreading
-
+### NOTE On Linux Kernel, HyperThreading and ksoftirq 
+ 
 Apparently when you do anything more complex that just a couple of static routes
 and some NAT, hyperthreading enable on the CPU cores cause a noticeable loss in 
 performances. If your machine has HT enabled, disable it either from the BIOS
@@ -42,6 +42,10 @@ machine load goes way too high to maintain a proper throughput.
 
 Installing a PREEMPT RT kernel solved the issue in an excellent manner.
 
+ksoftirq continue to consume a LOT of resources, so, limiting it by lowering the 
+priority of the thread can help too: in the rc.local there is a line to do it.
+
+
 Many other optimization can be done on the network stack, but using the proper
 kernel is a good start!