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57cad53f4e
Without packet steering NAT masquarade speed on BCM4908 /jumps/ between
two speeds:
1. 826 Mb/s (±3 Mb/s)
2. 909 Mb/s (±8 Mb/s)
and it never reaches ~940 Mb/s.
Proper packet steering can improve it. Below are testing results for
running iperf TCP traffic from LAN to WAN. They were used to pick up
golden values.
┌──────────┬──────────┬───────────┐
│ eth0 │ br-lan │ speed │
│ rps_cpus │ rps_cpus │ [Mbps] │
├──────────┼──────────┼───────────┤
│ 0 │ 0 │ 743 / 804 │
│ 0 │ 1 │ 738 / 821 │
│ 0 │ 2 │ ✓ 940 │
│ 0 │ 4 │ ✓ 938 │
│ 0 │ 8 │ ✓ 941 │
├──────────┼──────────┼───────────┤
│ 1 │ 0 │ 829 │
│ 1 │ 1 │ 829 │
│ 1 │ 2 │ ✓ 942 │
│ 1 │ 4 │ ✓ 941 │
│ 1 │ 8 │ ✓ 941 │
├──────────┼──────────┼───────────┤
│ 2 │ 0 │ ✓ 942 │
│ 2 │ 1 │ 926 │
│ 2 │ 2 │ ✓ 942 │
│ 2 │ 4 │ ✓ 942 │
│ 2 │ 8 │ ✓ 941 │
├──────────┼──────────┼───────────┤
│ 4 │ 0 │ ✓ 941 │
│ 4 │ 1 │ 925 │
│ 4 │ 2 │ ✓ 941 │
│ 4 │ 4 │ ✓ 941 │
│ 4 │ 8 │ ✓ 941 │
├──────────┼──────────┼───────────┤
│ 8 │ 0 │ ✓ 942 │
│ 8 │ 1 │ 925 │
│ 8 │ 2 │ ✓ 941 │
│ 8 │ 4 │ ✓ 942 │
│ 8 │ 8 │ ✓ 942 │
└──────────┴──────────┴───────────┘
Ref:
|
||
|---|---|---|
| .. | ||
| apm821xx | ||
| archs38 | ||
| armvirt | ||
| at91 | ||
| ath25 | ||
| ath79 | ||
| bcm27xx | ||
| bcm47xx | ||
| bcm53xx | ||
| bcm63xx | ||
| bcm4908 | ||
| bmips | ||
| gemini | ||
| generic | ||
| imx | ||
| ipq40xx | ||
| ipq806x | ||
| kirkwood | ||
| lantiq | ||
| layerscape | ||
| malta | ||
| mediatek | ||
| mpc85xx | ||
| mvebu | ||
| mxs | ||
| octeon | ||
| octeontx | ||
| omap | ||
| oxnas | ||
| pistachio | ||
| qoriq | ||
| ramips | ||
| realtek | ||
| rockchip | ||
| sunxi | ||
| tegra | ||
| uml | ||
| x86 | ||
| zynq | ||
| Makefile | ||