when ProfilingIntegration is used memory and CPU usage increases significantly

[aalirezamoradii]

Package

Sentry.AspNetCore

.NET Flavor

.NET

.NET Version

8.0.0

OS

Linux

SDK Version

4.13.0

Self-Hosted Sentry Version

24.10.0

Steps to Reproduce

in the .Net 8.0 (Microsoft.NET.Sdk.Web) Program.cs

var builder = WebApplication.CreateBuilder(args);
        
builder.WebHost.UseSentry(o =>
{
    o.AddIntegration(new ProfilingIntegration(TimeSpan.FromMilliseconds(500)));
    o.AddEntityFramework();
});

var app = builder.Build();

// other middlewares

app.UseSentryTracing();

// other middlewares

app.Run();

Expected Result

Without using
o.AddIntegration(new ProfilingIntegration(TimeSpan.FromMilliseconds(500)));

Actual Result

After using
o.AddIntegration(new ProfilingIntegration(TimeSpan.FromMilliseconds(500)));

When start:

After 5 minutes:

[jamescrosswell]

@vaind any ideas?

[vaind]

Memory: From my previous testing (because it's hard to tell without further details it's anything else): TraceEvent does a lot of temporary allocations on the heap during profiling and even though those do get freed, .net runtime keeps (and grows) the memory excessively as long as there's some available. Maybe you could try configuring GC limits if that's an option.

CPU: what is your configuration (TracesSampleRate and ProfilesSampleRate)? How many transactions are happening per second?

[aalirezamoradii]

@vaind thank for your response

This is my sentry configuration

  "Sentry": {
    "Dsn": "[email protected]/4",
    "Release": "1.0.0",
    "SendDefaultPii": true,
    "MaxRequestBodySize": "Always",
    "MinimumBreadcrumbLevel": "Debug",
    "MinimumEventLevel": "Warning",
    "AttachStackTrace": true,
    "Debug": false,
    "DiagnosticLevel": "Error",
    "TracesSampleRate": 1.0,
    "ProfilesSampleRate": 0.1
  },

Transactions: 140 TPM in an hour period