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simulation section

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Oskar Thoren
2020-02-12 13:15:19 +08:00
parent 7391bdb08d
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_posts/2020-02-10-waku-current-state.md
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@@ -76,50 +76,42 @@ The ultimate test is real-world usage. Until then, we have a simulation. Here's
TODO: Insert picture
- Simulations
-- include data numbers (below raw data)
Here we outline two network topologies, Star and full mesh, with 6 randomly connected nodes and 2 X, sending 10000 random envelopes over random topics, including invalid envelopes.
- Obvious test is real world
For light node, bloom filter is set to 1% false positive. It shows the number of valid and invalid envelopes received for the different nodes.
```
> ./build/start_network --topology:Star --amount:6 --test-node-peers:2
**Star network:**
Send 10k random envelopes over random topics
| Description | Peers | Valid | Invalid |
|-----------------|-------|-------|---------|
| Master node | 7 | 10001 | 0 |
| Full node 1 | 3 | 10001 | 0 |
| Full node 2 | 1 | 10001 | 0 |
| Full node 3 | 1 | 10001 | 0 |
| Full node 4 | 1 | 10001 | 0 |
| Full node 5 | 1 | 10001 | 0 |
| Light node | 2 | 815 | 0 |
| Waku light node | 2 | 1 | 0 |
Star simulation:
**Full mesh:**
confirm invlaid
| Description | Peers | Valid | Invalid |
|-----------------|-------|-------|---------|
| Full node 0 | 7 | 10001 | 20676 |
| Full node 1 | 7 | 10001 | 9554 |
| Full node 2 | 5 | 10001 | 23304 |
| Full node 3 | 5 | 10001 | 11983 |
| Full node 4 | 5 | 10001 | 24425 |
| Full node 5 | 5 | 10001 | 23472 |
| Light node | 2 | 803 | 803 |
| Waku light node | 2 | 1 | 1 |
master node: connected peers 7 - 10001 / 0
full node 1: connected peers 3 - 10001 / 0
full node 2: connected peers 1 - 10001 / 0
full node 3: connected peers 1 - 10001 / 0
full node 4: connected peers 1 - 10001 / 0
full node 5: connected peers 1 - 10001 / 0
light node 1: connected peers 2 - 815 / 0 (next run 1094)
waku light node 1: connected peers 2 - 1 / 0
Things to note:
- Whisper light node with 1% false positive gets 1% of total traffic
- Waku light node gets ~1000x less envelopes than Whisper light node
- Full mesh results in a lot more duplicate messages, expect for Waku light node
- Why 10001?
- Which bloom filter used exactly?
- Why invalid envelopes 815 and 1 respectively for light/waku nodes, and nothing for other full nodes?
Ok think I got, also roughly ~100 1%
- what precise bloom filter used?
Full mesh:
peers / valid envelopes / invalid
full node 0: connected peers 7 - 10001 / 20676
full node 1: connected peers 7 - 10001 / 9554
full node 2: connected peers 5 - 10001 / 23304
full node 3: connected peers 5 - 10001 / 11983
full node 4: connected peers 5 - 10001 / 24425
full node 5: connected peers 5 - 10001 / 23472
light node 1: connected peers 2 - 803 / 803
waku light node 1: connected peers 2 - 1 / 1
```
Run the simulation yourself [here](https://github.com/status-im/nimbus/tree/master/waku#testing-waku-protocol). The parameters are configurable, and it is integrated with Prometheus and Grafana.
## Difference between Waku and Whisper