Testing and Tuning Matches

You should always test your matchmaking implementation and to help make sure the right players are being matched. This topic will provide some techniques for testing and tuning your matchmaking settings.

Get Snapshots of Matchmaking Pools

You can get snapshots of matchmaking pools using ovr_Matchmaking_GetAdminSnapshot, which returns the state of the pool at whatever time this request is made. This method should not be called in production.

// In your code, do a matchmaking enqueue first

// We can now inspect the queue to debug it.
ovr_Matchmaking_GetAdminSnapshot();

// In your handler
case ovrMessage_Matchmaking_GetAdminSnapshot:
  if (!ovr_Message_IsError(message)) {
    auto snapshot = ovr_Message_GetMatchmakingAdminSnapshot(message);
    auto candidates = ovr_MatchmakingAdminSnapshot_GetCandidates(snapshot);
    auto firstCandidate = ovr_MatchmakingAdminSnapshotCandidateArray_GetElement(candidates, 0);
    if (ovr_MatchmakingAdminSnapshotCandidate_GetCanMatch(firstCandidate)) {
      cout << "Yay!" << endl;
    }
  }         

You can also view a snapshot of the pool at enqueue time:

  ovrMatchmakingOptionsHandle matchmakingOptions = ovr_MatchmakingOptions_Create();
  ovr_MatchmakingOptions_SetIsDebug(matchmakingOptions, true);
  // set other matchmaking options here ...
  ovr_Matchmaking_Enqueue2("my_pool", matchmakingOptions);
  ovr_MatchmakingOptions_Destroy(matchmakingOptions);

  // In your handler
  case ovrMessage_Matchmaking_Enqueue2:
    if (!ovr_Message_IsError(message)) {
      auto enqueueResults = ovr_Message_GetMatchmakingEnqueueResult(message);
      auto snapshot = ovr_MatchmakingEnqueueResult_GetAdminSnapshot(enqueueResults);
      auto candidates = ovr_MatchmakingAdminSnapshot_GetCandidates(snapshot);
      auto firstCandidate = ovr_MatchmakingAdminSnapshotCandidateArray_GetElement(candidates, 0);
      if (ovr_MatchmakingAdminSnapshotCandidate_GetCanMatch(firstCandidate)) {
        cout << "Yay!" << endl;
      }
    }

Tuning Your Matches

After you’ve finished implementing Matchmaking and have the desired configurations in place, you may wish to tune the Matchmaking service. We introduced the concept of Advanced Tuning and Match Quality in Configuration Overview where you can choose the ‘Minimum Quality Bar’. We recommend leaving this value at the default 0.5 when you were implementing Matchmaking. However, now it may be appropriate to tune this value.

To tune your Matchmaking implementation, we recommend the following adjustments:

• Small user pool - If your pool of available matchmaking players is small, you may want to reduce the Minimum Quality Bar to allow for more matches.
• Match process takes too long - If the matchmaking service is taking too long to match users, you may want to reduce the Minimum Quality Bar to allow more, less optimal, matches to be made.
• Large user pool - If your pool of available matchmaking players is large, you may want to increase the Minimum Quality Bar to search for better quality matches.
• Match quality is low - If low-quality matches are impacting the user experience, you may want to increase the Minimum Quality Bar to search for better quality matches.

Test Using the Rooms and Matchmaking Debugger

The Room and Matchmaking Debugger is available to help developers identifying what connections and interactions a user or room makes with a room or matchmaking pool. Enter the id of a user or room to get a list of the recent connections.

The table will display a chronological list of events for that user or room. Each row represents a single event with additional information about the occurrence. The results show what event occurred, when it occurred, what user initiated the event, and the room in which the event happened (if in a room). You can select any room or user id returned in the table to retrieve the connection or interaction information about that user or room.

To retrieve the user and room Ids:

• Retrieve the User Id - See the Users, Friends, and Relationships page for information about the SDK requests you can use to retrieve a User Id. Please note that this id is not the same as the Org Scoped Id.
• Retrieve the Room Id - See the Rooms page for information about the SDK requests you can use to retrieve a User Id.

Test Multiplayer Integrations Locally

The Platform SDK allows you to test your Multiplayer integration by initializing multiple copies of the app locally, without making any external connections. Please see the Native Development Getting Started or Unity Development Getting Started for information about initializing in standalone mode.

Create test users in the Developer Center under the Settings tab, to test matching of users into a match locally.

Analytics for Matchmaking Pools

Matchmaking pool analytics allow you to review stats and the overall health of your matchmaking pools. If you’ve implemented any public facing pools you’ll be able to review the stats by logging in to https://dashboard.oculus.com, selecting the app you’d like to review, then select Analytics and Matchmaking Pools.

Note: To see the Matchmaking Pools analytics, you’ll need to have permission as either a Developer or Admin for the app. Information about different user roles can be found on the Manage your Organization and Users page.

On that page you’ll see the overall statistics of all your matchmaking pools. The filter allows you to review stats for a particular time period scaled by day or hour.

The analytics available are:

• Match Made Percentage: How often a user was successfully matched vs canceling out of the queue.
• Average Wait Time Until Match Made: How long a user waited for a successful match, in seconds.
• Matches Made Count: A count of how many users were matched.
• Average Wait Time Until Cancellation: How long a user waited until they canceled the matchmaking process.
• Cancellation Count: How many users canceled out of the matchmaking process before finding a successful match.