Hi, guys
Last week I did some performance test on VPP with Spirent testcenter. Below I
give two groups of running data in two different situation using the 'show run'
command . Inboth situationVPP drop packets ( from the 'rx-miss' output in 'show
int' command). In my opinion, when VPP begins to drop packets, the value of
Vectors/Call should be high. So I think situation 1 is easy to understand. But
the running data of situation 2 make me confused because Vectors/Call is still
very low.
Can anyone explains why and what's the relationship between VPP performance and
average vectors per node?
--------------------------------------------------------situation
1-------------------------------------------------------------------
Thread 1 vpp_wk_0 (lcore 1)
Time 225.3, average vectors/node 255.99, last 128 main loops 0.00 per node 0.00
vector rates in 2.2244e6, out 2.2242e6, drop 2.0019e2, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
TenGigabitEthernet6/0/1-output active 1957460 501107294
0 8.67e0 255.99
TenGigabitEthernet6/0/1-tx active 1957460 501107294
0 1.08e2 255.99
dpdk-input polling 1227897513 501152389
0 4.65e2 .41
error-drop active 182 45103
0 4.15e1 247.82
ip4-arp active 138 34616
0 3.43e1 250.84
ip4-drop active 44 10487
0 8.91e0 238.34
ip4-input-no-checksum active 1957630 501152389
0 3.77e1 255.99
ip4-lookup active 1957630 501152389
0 2.98e1 255.99
ip4-mimic-classify active 1957630 501152389
0 2.13e2 255.99
ip4-rewrite active 1957452 501107286
0 2.96e1 255.99
lookup-ip4-src active 1957630 501152389
0 5.07e1 255.99
snat-in2out-fast active 1957630 501152389
0 2.56e2 255.99
--------------------------------------------------------situation
2-------------------------------------------------------------------
Thread 2 vpp_wk_1 (lcore 2)
Time 1024.5, average vectors/node 8.57, last 128 main loops 0.00 per node 0.00
vector rates in 1.2209e6, out 1.2209e6, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
TenGigabitEthernet6/0/0-output active 145982828 1250882588
0 2.93e1 8.57
TenGigabitEthernet6/0/0-tx active 145982828 1250882588
0 1.37e2 8.57
dpdk-input polling 9106470948 1250882588
0 1.31e3 .14
ip4-input-no-checksum active 145982828 1250882588
0 7.39e1 8.57
ip4-lookup active 145982828 1250882588
0 7.56e1 8.57
ip4-mimic-classify active 145982828 1250882588
0 1.31e2 8.57
ip4-rewrite active 145982828 1250882588
0 6.33e1 8.57
snat-out2in-fast active 145982828 1250882588
0 4.50e1 8.57
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