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.Net Core :: Slow first response
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$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.470427 | |
$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.034931 | |
$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.037043 |
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# Start server | |
$dotnet dist/test.dll | |
info: Microsoft.Hosting.Lifetime[0] | |
Now listening on: http://localhost:5000 | |
info: Microsoft.Hosting.Lifetime[0] | |
Now listening on: https://localhost:5001 | |
info: Application.WarmupServices[0] | |
Starting IHostedService... | |
info: Microsoft.Hosting.Lifetime[0] | |
Application started. Press Ctrl+C to shut down. | |
info: Microsoft.Hosting.Lifetime[0] | |
Hosting environment: Production | |
info: Microsoft.Hosting.Lifetime[0] | |
# Result | |
$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.040194 | |
$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.035138 | |
$curl -o /dev/null -s -w %{time_total}\\n https://localhost:5001 | |
0.028956 |
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public class Program | |
{ | |
public static void Main(string[] args) | |
{ | |
CreateHostBuilder(args).Build().Run(); | |
} | |
public static IHostBuilder CreateHostBuilder(string[] args) => | |
Host.CreateDefaultBuilder(args) | |
.ConfigureWebHostDefaults(webBuilder => | |
{ | |
webBuilder.UseStartup<Startup>(); | |
}) | |
.ConfigureServices( | |
services => services.AddHostedService<WarmupServices>()); | |
} |
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public class WarmupServices : IHostedService, IDisposable | |
{ | |
private readonly ILogger _logger; | |
private readonly HttpClient httpClient; | |
public WarmupServices(ILogger<WarmupServices> logger) | |
{ | |
_logger = logger; | |
httpClient = new HttpClient(); | |
} | |
public Task StartAsync(CancellationToken cancellationToken) | |
{ | |
_logger.LogInformation("Starting IHostedService..."); | |
httpClient.GetAsync("<Endpoint URL>"); | |
return Task.CompletedTask; | |
} | |
public Task StopAsync(CancellationToken cancellationToken) | |
{ | |
_logger.LogInformation("StoppingIHostedService..."); | |
return Task.CompletedTask; | |
} | |
public void Dispose() | |
{ | |
httpClient?.Dispose(); | |
} | |
} |
so this will start http server and send first request as well? to make it quick for actual first request?
yes, my result in file 2.txt
Beautiful
simple but effective
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so this will start http server and send first request as well? to make it quick for actual first request?