Actual behavior

We use the new EntityFrameworkEventSource to collect metrics about EF Core performance.
However, the counters save-changes-per-second and total-save-changes constantly show a value of 0 for our application.

Expected behavior

We call await dbContext.SaveChangesAsync() in our code multiple times per second. So, we expect both values to be greater than zero.

Possible cause

I digged a bit into the source code and suspect that there's a bug here:

In the async overload of SaveChanges the call to the EventSource is missing. Compare

Environment information

EF Core version: 5.0.0
Database provider: Microsoft.EntityFrameworkCore.SqlServer
Target framework: e.g. .NET 5.0
Operating system: Docker (Linux containers)
IDE: Visual Studio Enterprise 2019 16.8.2