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openfreemap/docs/quick_notes/http_benchmark.md
2024-02-24 01:59:13 +01:00

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# wrk benchmarks
Real world usage, 500k requests replayed from server log.
### Hetnzer dedicated server with NVME ssd
#### localhost
clean cache after nginx restart.
```
service nginx restart
wrk -c10 -t4 -d60s -s /data/ofm/benchmark/wrk_custom_list.lua http://localhost
Running 1m test @ http://localhost
4 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 2.02ms 7.04ms 50.43ms 93.23%
Req/Sec 8.42k 2.01k 18.52k 69.79%
2871265 requests in 1.00m, 230.65GB read
Requests/sec: 47811.00
Transfer/sec: 3.84GB
```
Super much overkill, we'd only need 125 MB/s for Gigabit connection and this is 3840 MB/s.
Also max request time is super nice + no errors.
#### over network
```
wrk -c10 -t4 -d60s -s /data/ofm/benchmark/wrk_custom_list.lua http://x.x.x.x
Running 1m te st @ http://144.76.168.195
4 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 7.57ms 6.61ms 45.34ms 84.32%
Req/Sec 293.85 141.33 1.18k 73.07%
71628 requests in 1.00m, 6.05GB read
Requests/sec: 1191.88
Transfer/sec: 103.01MB
```
Realistically this is the max over Gigabit connection.
---
### BuyVM KVM machine with 1 TB BuyVM Block Storage Slab
Advertisement: 40Gbit+ InfiniBand RDMA Storage Fabric giving near local storage performance.
Reality:
```
wrk -c10 -t4 -d60s -s /data/ofm/benchmark/wrk_custom_list.lua http://localhost
Running 1m test @ http://localhost
4 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 226.10ms 343.52ms 1.99s 87.75%
Req/Sec 29.77 38.06 272.00 89.72%
3655 requests in 1.00m, 232.76MB read
Socket errors: connect 0, read 0, write 0, timeout 8
Requests/sec: 60.87
Transfer/sec: 3.88MB
```
Wow, this is 60 request per second compared to Hetzner's 47000, just wow! Repeated tests with hot cache resulted in a bit better performance, but still not Gigabit.
```
Requests/sec: 266.99
Transfer/sec: 23.07MB
```
Abandoned the idea of using BuyVM, even though their unlimited bandwidth is quite unique in this price range in USA.