Merged PR 647702: Add remotely run processes to the console

Add remotely run processes to the console

```[0:06] 100.00%  Processes:[413 done (412 hit), 0 executing, 0 waiting] Files:[1800/1800]
[0:07] -- Cache savings: 99.76% of 413 included processes. 1487 excluded via filtering.
[0:07] -- Cache misses run remotely: 1 of 1.
Build Succeeded
    Log Directory: F:\src\BuildXL.Internal.mpysson\Out\Logs\20220203-104238```

Public/Src/Engine/Scheduler/Scheduler.cs

@@ -1827,6 +1827,13 @@ namespace BuildXL.Scheduler
                         }
                     }
 
+                    var runRemoteProcesses = PipExecutionCounters.GetCounterValue(PipExecutorCounter.TotalRunRemoteProcesses);
+                    var runRemoteFallback = PipExecutionCounters.GetCounterValue(PipExecutorCounter.TotalRemoteFallbackRetries);
+                    if (runRemoteProcesses - runRemoteFallback > 0)
+                    {
+                        Logger.Log.RemoteBuildSavingsSummary(loggingContext, runRemoteProcesses, cacheMisses: totalProcessesNotIgnoredOrService - m_numProcessPipsSatisfiedFromCache);
+                    }
+
                     if (m_configuration.Engine.Converge && cacheRate < 1 && m_configuration.Logging.ExecutionLog.IsValid)
                     {
                         Logger.Log.SchedulerDidNotConverge(

Public/Src/Engine/Scheduler/Tracing/Log.cs

@@ -1077,6 +1077,15 @@ namespace BuildXL.Scheduler.Tracing
             Message = EventConstants.PhasePrefix + "Shared cache usage: Downloaded {remoteProcesses} processes [{relativeCacheRate:P} of cache hits] and {contentDownloaded} of outputs.")]
         internal abstract void IncrementalBuildSharedCacheSavingsSummary(LoggingContext loggingContext, double relativeCacheRate, long remoteProcesses, string contentDownloaded);
 
+        [GeneratedEvent(
+            (ushort)LogEventId.RemoteBuildSavingsSummary,
+            EventGenerators = EventGenerators.LocalOnly,
+            EventLevel = Level.Informational,
+            Keywords = (int)(Keywords.UserMessage),
+            EventTask = (ushort)Tasks.Scheduler,
+            Message = EventConstants.PhasePrefix + "Cache misses run remotely: {runRemoteProcesses} of {cacheMisses}.")]
+        internal abstract void RemoteBuildSavingsSummary(LoggingContext loggingContext, long runRemoteProcesses, long cacheMisses);
+
         [GeneratedEvent(
             (ushort)LogEventId.SchedulerDidNotConverge,
             EventGenerators = EventGenerators.LocalOnly,

Public/Src/Engine/Scheduler/Tracing/LogEventId.cs

@@ -135,6 +135,7 @@ namespace BuildXL.Scheduler.Tracing
         IncrementalBuildSharedCacheSavingsSummary = 1513,
         RemoteCacheHitsGreaterThanTotalCacheHits = 1514,
         SchedulerDidNotConverge = 1515,
+        RemoteBuildSavingsSummary = 1516,
 
         PipMaterializeDependenciesFailureUnrelatedToCache = 2102,