Differences

This shows you the differences between two versions of the page.

--- networking:10gbe:intel10g [2014/10/13 08:51] – OlivierCochardLabbé
+++ networking:10gbe:intel10g [2021/04/25 04:22] (current) – Move to Networking namespace KubilayKocak
@@ Line 77: / Line 77: @@
 </code>
-Packet generator use this command line (about 2000 flows):
+Packet generator use this command line (2000 flows: 100 different source IP * 20 different destination IP):
-''%% pkt-gen -i ix0 -f tx -n 1000000000 -l 60 -d 9.3.3.2:2000-9.3.3.128 -D a0:36:9f:1e:28:14 -s 8.3.3.3:2000-8.3.3.10 -w 4 %%''
+''%% pkt-gen -i ix0 -f tx -n 1000000000 -l 60 -d 9.1.1.1:2000-9.1.1.100 -D a0:36:9f:1e:28:14 -s 8.1.1.1:2000-8.1.1.20 -w 4 %%''
 Packet receiver use this command line:
@@ Line 87: / Line 87: @@
 => The reference PPS value for all these benchs is the "packet receiver" value.
-===== rx|tx_process_limit =====
+===== Generic advice =====
+cf [[10gFreeBSD/Router|Router/Gateway]] page about NIC independant advice for a router/gateway usage (disabling Ethernet flow-control, disabling LRO/TSO, etc…)
+===== hw.ix.[r|t]x_process_limit =====
 Disabling rx_process_limit and tx_process_limit give the best performance (value in pps):
@@ Line 137: / Line 141: @@
 => No difference
-===== ethernet,interrupts,point-to-point harvest impact =====
-Lot's of tuning guide indicate to disable kern.random.sys.harvest.ethernet, kern.random.sys.harvest.point_to_point and kern.random.sys.harvest.interrupt.
-But what about the REAL impact on a router (value in pps):
-<code>
-x harvest DISABLED
-+ harvest ENABLED (default)
-+--------------------------------------------------------------------------------+
-|+                   x          x    x        x+        +   +   +               x|
-|                    |_______________M_____A______________________|              |
-|                   |_________________________A_________M______________|         |
-+--------------------------------------------------------------------------------+
-    N           Min           Max        Median           Avg        Stddev
-x   5       1918159       2036665       1950208       1963257     44988.621
-+   5       1878893       2005333       1988952     1967850.8     51378.188
-No difference proven at 95.0% confidence
-</code>
-=> No difference.