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Go vs .NET Core in terms of HTTP performance
============================================================
![](https://cdn-images-1.medium.com/max/1200/1*60T60jSMO5yxUqJQmLZa4A.png)
Hello Friends!
Lately I’ve heard a lot of discussion around the new .NET Core and its performance especially on web servers.
I didn’t want to start comparing two different things, so I did patience for quite long for a more stable version.
This Monday, Microsoft [announced the .NET Core version 2.0][7], so I feel ready to do it! Do you?
As we already mentioned, we will compare two identical things here, in terms of application, the expected response and the stability of their run times, so we will not try to put more things in the game like `JSON` or `XML`encoders and decoders, just a simple text message. To achieve a fair comparison we will use the [MVC architecture pattern][8] on both sides, Go and .NET Core.
### Prerequisites
[Go][9] (or Golang): is a [rapidly growing][10] open source programming language designed for building simple, fast, and reliable software.
There are not lot of web frameworks for Go with MVC support but, luckily for us Iris does the job.
[Iris][11]: A fast, simple and efficient micro web framework for Go. It provides a beautifully expressive and easy to use foundation for your next website, API, or distributed app.
[C#][12]: is a general-purpose, object-oriented programming language. Its development team is led by [Anders Hejlsberg][13].
[.NET Core][14]: Develop high performance applications in less time, on any platform.
Download Go from [https://golang.org/dl][15] and .NET Core from [https://www.microsoft.com/net/core][16].
After you’ve download and install these, you will need Iris from Go’s side. Installation is very easy, just open your terminal and execute:
```
go get -u github.com/kataras/iris
```
### Benchmarking
#### Hardware
* Processor: Intel(R) Core(TM) i7–4710HQ CPU @ 2.50GHz 2.50GHz
* RAM: 8.00 GB
#### Software
* OS: Microsoft Windows [Version 10.0.15063], power plan is “High performance”
* HTTP Benchmark Tool: [https://github.com/codesenberg/bombardier][1], latest version 1.1
* .NET Core: [https://www.microsoft.com/net/core][2], latest version 2.0
* Iris: [https://github.com/kataras/iris][3], latest version 8.3 built with [go1.8.3][4]
Both of the applications will just return the text “value” on request path “api/values/{id}”.
.NET Core MVC
![](https://cdn-images-1.medium.com/max/1600/1*v2VJL3-I3bLyuehntuqfng.png)
Logo designed by [Pablo Iglesias][5].
Created using `dotnet new webapi` . That `webapi`template will generate the code for you, including the `return “value” `on `GET `method requests.
_Source Code_
```
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
namespace netcore_mvc
{
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.Build();
}
}
```
```
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace netcore_mvc
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddMvcCore();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.UseMvc();
}
}
}
```
```
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
namespace netcore_mvc.Controllers
{
// ValuesController is the equivalent
// `ValuesController` of the Iris 8.3 mvc application.
[Route("api/[controller]")]
public class ValuesController : Controller
{
// Get handles "GET" requests to "api/values/{id}".
[HttpGet("{id}")]
public string Get(int id)
{
return "value";
}
// Put handles "PUT" requests to "api/values/{id}".
[HttpPut("{id}")]
public void Put(int id, [FromBody]string value)
{
}
// Delete handles "DELETE" requests to "api/values/{id}".
[HttpDelete("{id}")]
public void Delete(int id)
{
}
}
}
```
_Start the .NET Core web server_
```
$ cd netcore-mvc
$ dotnet run -c Release
Hosting environment: Production
Content root path: C:\mygopath\src\github.com\kataras\iris\_benchmarks\netcore-mvc
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.
```
_Target and run the HTTP benchmark tool_
```
$ bombardier -c 125 -n 5000000 http://localhost:5000/api/values/5
Bombarding http://localhost:5000/api/values/5 with 5000000 requests using 125 connections
5000000 / 5000000 [=====================================================] 100.00% 2m3s
Done!
Statistics Avg Stdev Max
Reqs/sec 40226.03 8724.30 161919
Latency 3.09ms 1.40ms 169.12ms
HTTP codes:
1xx - 0, 2xx - 5000000, 3xx - 0, 4xx - 0, 5xx - 0
others - 0
Throughput: 8.91MB/s
```
Iris MVC
![](https://cdn-images-1.medium.com/max/1600/1*zf4BjL-7MQNJGikw5E-iNA.png)
Logo designed by [Santosh Anand][6].
_Source Code_
```
package main
import (
"github.com/kataras/iris"
"github.com/kataras/iris/_benchmarks/iris-mvc/controllers"
)
func main() {
app := iris.New()
app.Controller("/api/values/{id}", new(controllers.ValuesController))
app.Run(iris.Addr(":5000"), iris.WithoutVersionChecker)
}
view raw
```
```
package controllers
import "github.com/kataras/iris/mvc"
// ValuesController is the equivalent
// `ValuesController` of the .net core 2.0 mvc application.
type ValuesController struct {
mvc.Controller
}
// Get handles "GET" requests to "api/values/{id}".
func (vc *ValuesController) Get() {
// id,_ := vc.Params.GetInt("id")
vc.Ctx.WriteString("value")
}
// Put handles "PUT" requests to "api/values/{id}".
func (vc *ValuesController) Put() {}
// Delete handles "DELETE" requests to "api/values/{id}".
func (vc *ValuesController) Delete() {}
```
_Start the Go web server_
```
$ cd iris-mvc
$ go run main.go
Now listening on: http://localhost:5000
Application started. Press CTRL+C to shut down.
```
_Target and run the HTTP benchmark tool_
```
$ bombardier -c 125 -n 5000000 http://localhost:5000/api/values/5
Bombarding http://localhost:5000/api/values/5 with 5000000 requests using 125 connections
5000000 / 5000000 [======================================================] 100.00% 47s
Done!
Statistics Avg Stdev Max
Reqs/sec 105643.81 7687.79 122564
Latency 1.18ms 366.55us 22.01ms
HTTP codes:
1xx - 0, 2xx - 5000000, 3xx - 0, 4xx - 0, 5xx - 0
others - 0
Throughput: 19.65MB/s
```
For those who understand better by images, I did print my screen too!
Click [here][23] to see these screenshots.
#### Summary
* Time to complete the `5000000 requests` - smaller is better.
* Reqs/sec — bigger is better.
* Latency — smaller is better
* Throughput — bigger is better.
* Memory usage — smaller is better.
* LOC (Lines Of Code) — smaller is better.
.NET Core MVC Application, written using 86 lines of code, ran for 2 minutes and 8 seconds serving 39311.56 requests per second within 3.19mslatency in average and 229.73ms max, the memory usage of all these was ~126MB (without the dotnet host).
Iris MVC Application, written using 27 lines of code, ran for 47 secondsserving 105643.71 requests per second within 1.18ms latency in average and 22.01ms max, the memory usage of all these was ~12MB.
> There is also another benchmark with templates, scroll to the bottom.
Update 20 August 2017
As [Josh Clark][24] and [Scott Hanselman][25]‏ pointed out on this [re-twee][26]t , on .NET Core `Startup.cs` file the line with `services.AddMvc();` can be replaced with `services.AddMvcCore();` . I followed their helpful instructions and re-run the benchmarks. The article now contains the latest benchmark output for the .NET Core application with the change both Josh and Scott noted.
@topdawgevh @shanselman they also used AddMvc() instead of AddMvcCore()... doesn't one include more middleware?
 — @clarkis117
@clarkis117 @topdawgevh Cool @MakisMaropoulos we'll take a look. @ben_a_adams @davidfowl. Good learnings on how to make easier performant defaults.
 — @shanselman
@shanselman @clarkis117 @topdawgevh @ben_a_adams @davidfowl @shanselman @ben_a_adams @davidfowl Thank you for your feedback! I did update the results, no difference. I'm open for any other suggestion
 — @MakisMaropoulos
>It had a small difference but not as huge (8.91MB/s from 8.61MB/s)
For those who want to compare with the standard `services.AddMvc(); `you can see the old output by pressing [here][27].
* * *
### Can you stay a bit longer for one more?
Let’s run one more benchmark, spawn `1000000 requests` but this time we expect `HTML` generated by templates via the view engine.
#### .NET Core MVC with Templates
```
using System;
namespace netcore_mvc_templates.Models
{
public class ErrorViewModel
{
public string Title { get; set; }
public int Code { get; set; }
}
}
```
```
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using netcore_mvc_templates.Models;
namespace netcore_mvc_templates.Controllers
{
public class HomeController : Controller
{
public IActionResult Index()
{
return View();
}
public IActionResult About()
{
ViewData["Message"] = "Your application description page.";
return View();
}
public IActionResult Contact()
{
ViewData["Message"] = "Your contact page.";
return View();
}
public IActionResult Error()
{
return View(new ErrorViewModel { Title = "Error", Code = 500});
}
}
}
```
```
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
namespace netcore_mvc_templates
{
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.Build();
}
}
```
```
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
namespace netcore_mvc_templates
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
/* An unhandled exception was thrown by the application.
System.InvalidOperationException: No service for type
'Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionaryFactory' has been registered.
Solution: Use AddMvc() instead of AddMvcCore() in Startup.cs and it will work.
*/
// services.AddMvcCore();
services.AddMvc();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.UseStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
}
}
```
```
/*
wwwroot/css
wwwroot/images
wwwroot/js
wwwroot/lib
wwwroot/favicon.ico
Views/Shared/_Layout.cshtml
Views/Shared/Error.cshtml
Views/Home/About.cshtml
Views/Home/Contact.cshtml
Views/Home/Index.cshtml
These files are quite long to be shown in this article but you can view them at:
https://github.com/kataras/iris/tree/master/_benchmarks/netcore-mvc-templates
```
_Start the .NET Core web server_
```
$ cd netcore-mvc-templates
$ dotnet run -c Release
Hosting environment: Production
Content root path: C:\mygopath\src\github.com\kataras\iris\_benchmarks\netcore-mvc-templates
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.
```
_Target and run the HTTP benchmark tool_
```
Bombarding http://localhost:5000 with 1000000 requests using 125 connections
1000000 / 1000000 [====================================================] 100.00% 1m20s
Done!
Statistics Avg Stdev Max
Reqs/sec 11738.60 7741.36 125887
Latency 10.10ms 22.10ms 1.97s
HTTP codes:
1xx — 0, 2xx — 1000000, 3xx — 0, 4xx — 0, 5xx — 0
others — 0
Throughput: 89.03MB/s
```
#### Iris MVC with Templates
```
package controllers
import "github.com/kataras/iris/mvc"
type AboutController struct{ mvc.Controller }
func (c *AboutController) Get() {
c.Data["Title"] = "About"
c.Data["Message"] = "Your application description page."
c.Tmpl = "about.html"
}
```
```
package controllers
import "github.com/kataras/iris/mvc"
type ContactController struct{ mvc.Controller }
func (c *ContactController) Get() {
c.Data["Title"] = "Contact"
c.Data["Message"] = "Your contact page."
c.Tmpl = "contact.html"
}
```
```
package models
// HTTPError a silly structure to keep our error page data.
type HTTPError struct {
Title string
Code int
}
```
```
package controllers
import "github.com/kataras/iris/mvc"
type IndexController struct{ mvc.Controller }
func (c *IndexController) Get() {
c.Data["Title"] = "Home Page"
c.Tmpl = "index.html"
}
```
```
package main
import (
"github.com/kataras/iris/_benchmarks/iris-mvc-templates/controllers"
"github.com/kataras/iris"
"github.com/kataras/iris/context"
)
const (
// templatesDir is the exactly the same path that .NET Core is using for its templates,
// in order to reduce the size in the repository.
// Change the "C\\mygopath" to your own GOPATH.
templatesDir = "C:\\mygopath\\src\\github.com\\kataras\\iris\\_benchmarks\\netcore-mvc-templates\\wwwroot"
)
func main() {
app := iris.New()
app.Configure(configure)
app.Controller("/", new(controllers.IndexController))
app.Controller("/about", new(controllers.AboutController))
app.Controller("/contact", new(controllers.ContactController))
app.Run(iris.Addr(":5000"), iris.WithoutVersionChecker)
}
func configure(app *iris.Application) {
app.RegisterView(iris.HTML("./views", ".html").Layout("shared/layout.html"))
app.StaticWeb("/public", templatesDir)
app.OnAnyErrorCode(onError)
}
type err struct {
Title string
Code int
}
func onError(ctx context.Context) {
ctx.ViewData("", err{"Error", ctx.GetStatusCode()})
ctx.View("shared/error.html")
}
```
```
/*
../netcore-mvc-templates/wwwroot/css
../netcore-mvc-templates/wwwroot/images
../netcore-mvc-templates/wwwroot/js
../netcore-mvc-templates/wwwroot/lib
../netcore-mvc-templates/wwwroot/favicon.ico
views/shared/layout.html
views/shared/error.html
views/about.html
views/contact.html
views/index.html
These files are quite long to be shown in this article but you can view them at:
https://github.com/kataras/iris/tree/master/_benchmarks/iris-mvc-templates
*/
```
_Start the Go web server_
```
$ cd iris-mvc-templates
$ go run main.go
Now listening on: http://localhost:5000
Application started. Press CTRL+C to shut down.
```
_Target and run the HTTP benchmark tool_
```
Bombarding http://localhost:5000 with 1000000 requests using 125 connections
1000000 / 1000000 [======================================================] 100.00% 37s
Done!
Statistics Avg Stdev Max
Reqs/sec 26656.76 1944.73 31188
Latency 4.69ms 1.20ms 22.52ms
HTTP codes:
1xx — 0, 2xx — 1000000, 3xx — 0, 4xx — 0, 5xx — 0
others — 0
Throughput: 192.51MB/s
```
Summary
* Time to complete the `1000000 requests` — smaller is better.
* Reqs/sec — bigger is better.
* Latency — smaller is better
* Memory usage — smaller is better.
* Throughput — bigger is better.
.NET Core MVC with Templates Application ran for 1 minute and 20 seconds serving 11738.60 requests per second with 89.03MB/s within 10.10ms latency in average and 1.97s max, the memory usage of all these was ~193MB (without the dotnet host).
Iris MVC with Templates Application ran for 37 seconds serving 26656.76requests per second with 192.51MB/s within 1.18ms latency in average and 22.52ms max, the memory usage of all these was ~17MB.
### What next?
Download the example source code from [there ][32]and run the same benchmarks from your machine, then come back here and share your results with the rest of us!
For those who want to add other go or c# .net core web frameworks to the list please push a PR to the `_benchmarks` folder inside [this repository][33].
I need to personally thanks the [dev.to][34] team for sharing my article at their twitter account, as well.
Go vs .NET Core in terms of HTTP performance { author: @MakisMaropoulos } https://t.co/IXL5LSpnjX
 — @ThePracticalDev
Thank you all for the 100% green feedback, have fun!
#### Update: Monday, 21 August 2017
A lot of people reached me saying that want to see a new benchmarking article based on the .NET Core’s lower level Kestrel this time.
So I did, follow the below link to learn the performance difference between Kestrel and Iris, it contains a sessions storage management benchmark too!
--------------------------------------------------------------------------------
via: https://hackernoon.com/go-vs-net-core-in-terms-of-http-performance-7535a61b67b8
作者：[ Gerasimos Maropoulos][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:https://hackernoon.com/@kataras?source=post_header_lockup
[1]:https://github.com/codesenberg/bombardier
[2]:https://www.microsoft.com/net/core
[3]:https://github.com/kataras/iris
[4]:https://golang.org/
[5]:https://github.com/campusMVP/dotnetCoreLogoPack
[6]:https://github.com/santoshanand
[7]:https://blogs.msdn.microsoft.com/dotnet/2017/08/14/announcing-net-core-2-0/
[8]:https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller
[9]:https://golang.org/
[10]:http://www.tiobe.com/tiobe-index/
[11]:http://iris-go.com/
[12]:https://en.wikipedia.org/wiki/C_Sharp_%28programming_language%29
[13]:https://twitter.com/ahejlsberg
[14]:https://www.microsoft.com/net/
[15]:https://golang.org/dl
[16]:https://www.microsoft.com/net/core
[17]:http://localhost:5000/
[18]:http://localhost:5000/api/values/5
[19]:http://localhost:5000/api/values/5
[20]:http://localhost:5000/
[21]:http://localhost:5000/api/values/5
[22]:http://localhost:5000/api/values/5
[23]:https://github.com/kataras/iris/tree/master/_benchmarks/screens
[24]:https://twitter.com/clarkis117
[25]:https://twitter.com/shanselman
[26]:https://twitter.com/shanselman/status/899005786826788865
[27]:https://github.com/kataras/iris/blob/master/_benchmarks/screens/5m_requests_netcore-mvc.png
[28]:http://localhost:5000/
[29]:http://localhost:5000/
[30]:http://localhost:5000/
[31]:http://localhost:5000/
[32]:https://github.com/kataras/iris/tree/master/_benchmarks
[33]:https://github.com/kataras/iris
[34]:https://dev.to/kataras/go-vsnet-core-in-terms-of-http-performance