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authorSteven <sluong@cisco.com>2018-09-27 20:06:26 -0700
committerDamjan Marion <dmarion@me.com>2018-09-28 19:39:50 +0000
commitc4e99c5d6f19cf7c026b021266e309f29de1ac7f (patch)
tree760eb9f8c6cd365521edac14b731635063562ad5 /src/vnet/interface_format.c
parent9be93c8f85d752930566a1d37e9f4841ca78861f (diff)
bond: tx performance enhancement part deux
- Reduce per packet cost by buffering the output packet buffer indexes in the queue and process the queue outside the packet processing loop. - Move unnecessary variable initialization outside of the while loop. - There is no need to save the old interface if tracing is not enabled. Test result for 256 bytes packet comparison. Other packet size shows similar improvement. With the patch -------------- BondEthernet0-output active 52836 13526016 0 1.71e1 256.00 BondEthernet0-tx active 52836 13526016 0 2.68e1 256.00 TenGigabitEthernet6/0/0-output active 52836 6762896 0 9.17e0 127.99 TenGigabitEthernet6/0/0-tx active 52836 6762896 0 6.97e1 127.99 TenGigabitEthernet6/0/1-output active 52836 6763120 0 9.40e0 128.00 TenGigabitEthernet6/0/1-tx active 52836 6763120 0 7.00e1 128.00 bond-input active 52836 13526016 0 1.76e1 256.00 Without the patch ----------------- BondEthernet0-output active 60858 15579648 0 1.73e1 256.00 BondEthernet0-tx active 60858 15579648 0 2.94e1 256.00 TenGigabitEthernet6/0/0-output active 60858 7789626 0 9.29e0 127.99 TenGigabitEthernet6/0/0-tx active 60858 7789626 0 7.01e1 127.99 TenGigabitEthernet6/0/1-output active 60858 7790022 0 9.31e0 128.00 TenGigabitEthernet6/0/1-tx active 60858 7790022 0 7.10e1 128.00 bond-input active 60858 15579648 0 1.77e1 256.00 Change-Id: Ib6d73a63ceeaa2f1397ceaf4c5391c57fd865b04 Signed-off-by: Steven <sluong@cisco.com>
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