lagopus 0.2 IPv4 forward performance issue about lagopus

[ynkjm]

Hi Mark,

It seems that the performance degradation was caused by DPDK vector mode PMD.
Could you turn-off DPDK vector mode PMD for IXGBE as follows?

diff --git a/config/common_linuxapp b/config/common_linuxapp
index 0de43d5..09a1ec2 100644
--- a/config/common_linuxapp
+++ b/config/common_linuxapp
@@ -171,7 +171,7 @@ CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX=n
 CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX_FREE=n
 CONFIG_RTE_LIBRTE_IXGBE_DEBUG_DRIVER=n
 CONFIG_RTE_LIBRTE_IXGBE_PF_DISABLE_STRIP_CRC=n
-CONFIG_RTE_IXGBE_INC_VECTOR=y
+CONFIG_RTE_IXGBE_INC_VECTOR=n
 CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=y

 #

[markc0303]

Hi sir,

it's okay now. :)

any differences between v0.1.1 and v0.2.0?
i didn't turn-off this function in v0.1.1... and i still get good performance with

BR,
mark

[ynkjm]

Hi Mark,

I recommend you to use version 0.2.0 because lots of improvements since v0.1.1.

Thanks,
Yoshi

[markc0303]

Hi Sir,

i'll use 0.2.0 as well.
i know this version add much new config options, and looking forward to have sample config guide for us soon.

BR,
Mark

[ynkjm]

Hi @markc0303,

May we close this issue?
We try to improve L2/L3 lookup performance in 2016 Q2.
Lagopus book about how-to-use lagopus with several configurations is going to be available soon.

Thanks,