Update identity metrics with feedback

src/Identity/Core/src/Microsoft.AspNetCore.Identity.csproj

@@ -15,6 +15,7 @@
   <ItemGroup>
     <Compile Include="$(SharedSourceRoot)DefaultMessageEmailSender.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)Metrics\MetricsConstants.cs" LinkBase="Shared" />
+    <Compile Include="$(SharedSourceRoot)ValueStopwatch\ValueStopwatch.cs" LinkBase="Shared" />
   </ItemGroup>
 
   <ItemGroup>

src/Identity/Core/src/SignInManager.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Security.Claims;
@@ -169,15 +170,16 @@ public virtual async Task<bool> CanSignInAsync(TUser user)
     /// <returns>The task object representing the asynchronous operation.</returns>
     public virtual async Task RefreshSignInAsync(TUser user)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var (success, isPersistent) = await RefreshSignInCoreAsync(user);
             var signInResult = success ? SignInResult.Success : SignInResult.Failed;
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, signInResult, SignInType.Refresh, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, signInResult, SignInType.Refresh, isPersistent, startTimestamp);
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Refresh, isPersistent: null, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Refresh, isPersistent: null, startTimestamp, ex);
             throw;
         }
     }
@@ -391,6 +393,7 @@ public virtual async Task<bool> ValidateSecurityStampAsync(TUser? user, string?
     public virtual async Task<SignInResult> PasswordSignInAsync(TUser user, string password,
         bool isPersistent, bool lockoutOnFailure)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             ArgumentNullException.ThrowIfNull(user);
@@ -399,13 +402,13 @@ public virtual async Task<SignInResult> PasswordSignInAsync(TUser user, string p
             var result = attempt.Succeeded
                 ? await SignInOrTwoFactorAsync(user, isPersistent)
                 : attempt;
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.Password, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.Password, isPersistent, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Password, isPersistent, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Password, isPersistent, startTimestamp, ex);
             throw;
         }
     }
@@ -423,10 +426,11 @@ public virtual async Task<SignInResult> PasswordSignInAsync(TUser user, string p
     public virtual async Task<SignInResult> PasswordSignInAsync(string userName, string password,
         bool isPersistent, bool lockoutOnFailure)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         var user = await UserManager.FindByNameAsync(userName);
         if (user == null)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, SignInResult.Failed, SignInType.Password, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, SignInResult.Failed, SignInType.Password, isPersistent, startTimestamp);
             return SignInResult.Failed;
         }
 
@@ -635,16 +639,17 @@ public virtual async Task<PasskeyAssertionResult<TUser>> PerformPasskeyAssertion
     /// </returns>
     public virtual async Task<SignInResult> PasskeySignInAsync(string credentialJson)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var result = await PasskeySignInCoreAsync(credentialJson);
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.Passkey, isPersistent: false);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.Passkey, isPersistent: false, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Passkey, isPersistent: false, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.Passkey, isPersistent: false, startTimestamp, ex);
             throw;
         }
     }
@@ -787,16 +792,17 @@ public virtual async Task ForgetTwoFactorClientAsync()
     /// <returns></returns>
     public virtual async Task<SignInResult> TwoFactorRecoveryCodeSignInAsync(string recoveryCode)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var result = await TwoFactorRecoveryCodeSignInCoreAsync(recoveryCode);
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactorRecoveryCode, isPersistent: false);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactorRecoveryCode, isPersistent: false, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactorRecoveryCode, isPersistent: false, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactorRecoveryCode, isPersistent: false, startTimestamp, ex);
             throw;
         }
     }
@@ -868,16 +874,17 @@ private async Task<SignInResult> DoTwoFactorSignInAsync(TUser user, TwoFactorAut
     /// for the sign-in attempt.</returns>
     public virtual async Task<SignInResult> TwoFactorAuthenticatorSignInAsync(string code, bool isPersistent, bool rememberClient)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var result = await TwoFactorAuthenticatorSignInCoreAsync(code, isPersistent, rememberClient);
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactorAuthenticator, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactorAuthenticator, isPersistent, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactorAuthenticator, isPersistent, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactorAuthenticator, isPersistent, startTimestamp, ex);
             throw;
         }
     }
@@ -932,16 +939,17 @@ private async Task<SignInResult> TwoFactorAuthenticatorSignInCoreAsync(string co
     /// for the sign-in attempt.</returns>
     public virtual async Task<SignInResult> TwoFactorSignInAsync(string provider, string code, bool isPersistent, bool rememberClient)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var result = await TwoFactorSignInCoreAsync(provider, code, isPersistent, rememberClient);
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactor, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.TwoFactor, isPersistent, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactor, isPersistent, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.TwoFactor, isPersistent, startTimestamp, ex);
             throw;
         }
     }
@@ -1021,16 +1029,17 @@ public virtual Task<SignInResult> ExternalLoginSignInAsync(string loginProvider,
     /// for the sign-in attempt.</returns>
     public virtual async Task<SignInResult> ExternalLoginSignInAsync(string loginProvider, string providerKey, bool isPersistent, bool bypassTwoFactor)
     {
+        var startTimestamp = Stopwatch.GetTimestamp();
         try
         {
             var result = await ExternalLoginSignInCoreAsync(loginProvider, providerKey, isPersistent, bypassTwoFactor);
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.External, isPersistent);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result, SignInType.External, isPersistent, startTimestamp);
 
             return result;
         }
         catch (Exception ex)
         {
-            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.External, isPersistent, ex);
+            _metrics?.AuthenticateSignIn(typeof(TUser).FullName!, AuthenticationScheme, result: null, SignInType.External, isPersistent, startTimestamp, ex);
             throw;
         }
     }

src/Identity/Core/src/SignInManagerMetrics.cs

@@ -3,38 +3,39 @@
 
 using System.Diagnostics;
 using System.Diagnostics.Metrics;
+using Microsoft.Extensions.Internal;
 
 namespace Microsoft.AspNetCore.Identity;
 
 internal sealed class SignInManagerMetrics : IDisposable
 {
     public const string MeterName = "Microsoft.AspNetCore.Identity";
 
-    public const string AuthenticateCounterName = "aspnetcore.identity.sign_in.authenticate";
-    public const string RememberTwoFactorCounterName = "aspnetcore.identity.sign_in.remember_two_factor";
-    public const string ForgetTwoFactorCounterName = "aspnetcore.identity.sign_in.forget_two_factor";
-    public const string CheckPasswordCounterName = "aspnetcore.identity.sign_in.check_password";
-    public const string SignInUserPrincipalCounterName = "aspnetcore.identity.sign_in.sign_in";
-    public const string SignOutUserPrincipalCounterName = "aspnetcore.identity.sign_in.sign_out";
+    public const string AuthenticateDurationName = "aspnetcore.identity.sign_in.authenticate.duration";
+    public const string RememberedTwoFactorCounterName = "aspnetcore.identity.sign_in.remembered_two_factor_clients";
+    public const string ForgottenTwoFactorCounterName = "aspnetcore.identity.sign_in.forgotten_two_factor_clients";
+    public const string CheckPasswordAttemptsCounterName = "aspnetcore.identity.sign_in.check_password_attempts";
+    public const string SignInsCounterName = "aspnetcore.identity.sign_in.sign_ins";
+    public const string SignOutsCounterName = "aspnetcore.identity.sign_in.sign_outs";
 
     private readonly Meter _meter;
-    private readonly Counter<long> _authenticateCounter;
+    private readonly Histogram<double> _authenticateDuration;
     private readonly Counter<long> _rememberTwoFactorClientCounter;
     private readonly Counter<long> _forgetTwoFactorCounter;
     private readonly Counter<long> _checkPasswordCounter;
-    private readonly Counter<long> _signInUserPrincipalCounter;
-    private readonly Counter<long> _signOutUserPrincipalCounter;
+    private readonly Counter<long> _signInsCounter;
+    private readonly Counter<long> _signOutsCounter;
 
     public SignInManagerMetrics(IMeterFactory meterFactory)
     {
         _meter = meterFactory.Create(MeterName);
 
-        _authenticateCounter = _meter.CreateCounter<long>(AuthenticateCounterName, "{count}", "The number of authenticate attempts. The authenticate counter is incremented by sign in methods such as PasswordSignInAsync and TwoFactorSignInAsync.");
-        _rememberTwoFactorClientCounter = _meter.CreateCounter<long>(RememberTwoFactorCounterName, "{count}", "The number of two factor clients remembered.");
-        _forgetTwoFactorCounter = _meter.CreateCounter<long>(ForgetTwoFactorCounterName, "{count}", "The number of two factor clients forgotten.");
-        _checkPasswordCounter = _meter.CreateCounter<long>(CheckPasswordCounterName, "{check}", "The number of check password attempts. Checks that the account is in a state that can log in and that the password is valid using the UserManager.CheckPasswordAsync method.");
-        _signInUserPrincipalCounter = _meter.CreateCounter<long>(SignInUserPrincipalCounterName, "{sign_in}", "The number of calls to sign in user principals.");
-        _signOutUserPrincipalCounter = _meter.CreateCounter<long>(SignOutUserPrincipalCounterName, "{sign_out}", "The number of calls to sign out user principals.");
+        _authenticateDuration = _meter.CreateHistogram<double>(AuthenticateDurationName, "s", "The number of authenticate attempts. The authenticate counter is incremented by sign in methods such as PasswordSignInAsync and TwoFactorSignInAsync.");
+        _rememberTwoFactorClientCounter = _meter.CreateCounter<long>(RememberedTwoFactorCounterName, "{client}", "The number of two factor clients remembered.");
+        _forgetTwoFactorCounter = _meter.CreateCounter<long>(ForgottenTwoFactorCounterName, "{client}", "The number of two factor clients forgotten.");
+        _checkPasswordCounter = _meter.CreateCounter<long>(CheckPasswordAttemptsCounterName, "{attempts}", "The number of check password attempts. Checks that the account is in a state that can log in and that the password is valid using the UserManager.CheckPasswordAsync method.");
+        _signInsCounter = _meter.CreateCounter<long>(SignInsCounterName, "{sign_in}", "The number of calls to sign in user principals.");
+        _signOutsCounter = _meter.CreateCounter<long>(SignOutsCounterName, "{sign_out}", "The number of calls to sign out user principals.");
     }
 
     internal void CheckPasswordSignIn(string userType, SignInResult? result, Exception? exception = null)
@@ -54,9 +55,9 @@ internal void CheckPasswordSignIn(string userType, SignInResult? result, Excepti
         _checkPasswordCounter.Add(1, tags);
     }
 
-    internal void AuthenticateSignIn(string userType, string authenticationScheme, SignInResult? result, SignInType signInType, bool? isPersistent, Exception? exception = null)
+    internal void AuthenticateSignIn(string userType, string authenticationScheme, SignInResult? result, SignInType signInType, bool? isPersistent, long startTimestamp, Exception? exception = null)
     {
-        if (!_authenticateCounter.Enabled)
+        if (!_authenticateDuration.Enabled)
         {
             return;
         }
@@ -71,12 +72,13 @@ internal void AuthenticateSignIn(string userType, string authenticationScheme, S
         AddSignInResult(ref tags, result);
         AddErrorTag(ref tags, exception);
 
-        _authenticateCounter.Add(1, tags);
+        var duration = ValueStopwatch.GetElapsedTime(startTimestamp, Stopwatch.GetTimestamp());
+        _authenticateDuration.Record(duration.TotalSeconds, tags);
     }
 
     internal void SignInUserPrincipal(string userType, string authenticationScheme, bool? isPersistent, Exception? exception = null)
     {
-        if (!_signInUserPrincipalCounter.Enabled)
+        if (!_signInsCounter.Enabled)
         {
             return;
         }
@@ -89,12 +91,12 @@ internal void SignInUserPrincipal(string userType, string authenticationScheme,
         AddIsPersistent(ref tags, isPersistent);
         AddErrorTag(ref tags, exception);
 
-        _signInUserPrincipalCounter.Add(1, tags);
+        _signInsCounter.Add(1, tags);
     }
 
     internal void SignOutUserPrincipal(string userType, string authenticationScheme, Exception? exception = null)
     {
-        if (!_signOutUserPrincipalCounter.Enabled)
+        if (!_signOutsCounter.Enabled)
         {
             return;
         }
@@ -106,7 +108,7 @@ internal void SignOutUserPrincipal(string userType, string authenticationScheme,
         };
         AddErrorTag(ref tags, exception);
 
-        _signOutUserPrincipalCounter.Add(1, tags);
+        _signOutsCounter.Add(1, tags);
     }
 
     internal void RememberTwoFactorClient(string userType, string authenticationScheme, Exception? exception = null)

src/Identity/Extensions.Core/src/Microsoft.Extensions.Identity.Core.csproj

@@ -16,6 +16,7 @@
     <Reference Include="Microsoft.Extensions.Options" />
 
     <Compile Include="$(SharedSourceRoot)TrimmingAttributes.cs" LinkBase="Shared" />
+    <Compile Include="$(SharedSourceRoot)ValueStopwatch\ValueStopwatch.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ThrowHelpers\ArgumentNullThrowHelper.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ThrowHelpers\ArgumentOutOfRangeThrowHelper.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ThrowHelpers\ObjectDisposedThrowHelper.cs" LinkBase="Shared" />