Failed to test on Mac systems

[ecafkoob]

osinfo:

ProductName: macOS
ProductVersion: 11.5.2
BuildVersion: 20G95

kern.maxfilesperproc: 49152
kern.maxfiles: 98304

result:

➜ echo "Results for hyper:" && rewrk -t 12 -c 300 -d 10s -h http://localhost:3000/

Results for hyper:
Beginning round 1...
Benchmarking 300 connections @ http://localhost:3000/ for 10 second(s)
failed to run benchmark round due to error: error combining results: connection closed

use wrk it's ok:

➜ wrk -t12 -c400 -d30s --latency http://localhost:3000/
wrk http://localhost:3000/
Running 30s test @ http://localhost:3000/
12 threads and 400 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 808.44us 247.22us 3.95ms 72.97%
Req/Sec 23.51k 9.67k 141.20k 79.11%
Latency Distribution
50% 819.00us
75% 0.96ms
90% 1.10ms
99% 1.40ms
7020424 requests in 30.10s, 589.18MB read
Socket errors: connect 157, read 89, write 0, timeout 0
Requests/sec: 233235.83
Transfer/sec: 19.57MB

[programatik29]

This is a rewrk problem. The problem is when an error occurs on one of the connections, program will return an error. So it isn't platform specific. I will open an issue there.

[programatik29]

Can you try again with latest rewrk?

[ecafkoob]

when i use rewrk -t 12 -c 500 -d 10s -h http://localhost:3000/ hyper crashed with Error: Os { code: 24, kind: Other, message: "Too many open files" }. rewrk -t 12 -c 400 -d 10s -h http://localhost:3000/ is ok. wrk works well with 12 threads and 500 connections.

[programatik29]

Might be related to this which should be fixed with this PR.

[ecafkoob]

I want to know why there is such a big difference between URL and ip