Comments (5)
Look at issue #4. He elaborates on his benchmarks and provides some of the background information behind his benchmarks.
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@Annonomus-Penguin I have seen that. But my doubt are something else, first is preffered usage SO_REUSEPORT
& prefork rather than normal multi-threaded. There's nothing about that in #4. Another is claim that fasthttp
works 4x-10x than net/http
. Again I cannot see the proof (example benchmark) for this claim.
Just to be clear, I am not denying that this solution is fast, it is VERY FAST. And it is 4th in my benchmarks, only loosing to some heavily optimized Java and 2 native C solution. So I think it is great.
from fasthttp.
@nanoant , first of all thanks for the benchmark.
According to your Performance optimization tips for multi-core systems using pre-fork with SO_REUSEPORT is preferred way to scale on multicore system.
However I get completely opposite numbers, when using prefork I get worse results (~440kreq/s) than with multi-threded simpler version (~480kreq).
Prefork with SO_REUSEPORT scales perfectly when a lot of concurrent client connections (at least thouthands) are established over the real network (preferrably 10Gbit with per-CPU hardware packet queues). See #4 for details. When small number of concurrent client connections are established over localhost, then SO_REUSEPORT usually doesn't give any performance gain (like in your case).
Also another important observation is that is performance increase comparing to net/http is around 1.8x, and it is nowhere close to claimed 4x-10x. Thoughts?
10x performance gain is achieved in synthetic benchmarks - see server benchmark results on the main page. These benchmarks completely skip network API provided by the operating system - they test bare server implementation performance. In real life fasthttp is faster than net/http by up to 3x (when client uses http pipelining) due to network API overhead.
As for the source code:
Replace
io.WriteString(ctx, "Hello World")
with
ctx.Write(helloWorldBytes)
where helloWorldBytes
must be initialized in global scope as:
var helloWorldBytes = []byte("Hello World")
This may improve benchmark performance, since it eliminates io.WriteString
overhead.
from fasthttp.
Just added io.WriteString
performance booster at 80105c1. @nanoant, make go get -u github.com/valyala/fasthttp
and re-run your tests.
from fasthttp.
Closing this issue, since this is not a bug.
from fasthttp.
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