VENOM: Mempool Capacity

$X(N)=\frac{\lambda N}{1+\sigma(N-1)+\kappa N(N-1)}$

Equation

$X(N)=(lambda N)/(1+sigma(N-1)+kappa N(N-1))$

Measure	Description	Example
N	is a number of nodes
X(N)	is throughput of the system of N nodes	100 requests per second
λ	is a throughput of the system with one node X(1)
σ	a coefficient of contention	σ=0.05 (5%)
κ	a coefficient of crosstalk	κ=0.02 (2%)

Usage

Start the entire process by executing our script entrypoint via run.sh

./run.sh

Monitor

./list.sh

Grafana

usr: admin 

paswd: admin 

http://localhost:3000/d/__zqZa-Zz/rpc-capacity-manager?orgId=1&refresh=5s

Prometheus

http://localhost:9090/

Naive Adaptive

ORIGIN_WORKTIME=2s CLIENT_ORIGIN=http://proxy:7000 PROXY_ADAPTIVE=true docker-compose up

Results

client sends 5 requests per second and receives between 2.4 rps and 2.7 rps (HTTP 200)
proxy oscillates between 4 and 6 in-flight requests
origin processes between 2.7 and 3 requests per second
origin has served requests with average latency 2.2 seconds
origin has served 50% of requests (50th percentile) within 2 seconds
origin has served 99% of requests (99th percentile) within 3 seconds with periodic spikes

License

Licensed under either of

• Universal Permissive License 1.0 (LICENSE-UPL or https://opensource.org/licenses/UPL)

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Universal Permissive License v 1.0 license, shall be dual licensed as above, without any additional terms or conditions.