memory improvements (#1127)

* regularly release memory * don't aggressively GC while legacy streaming * update changelog
2023-01-22 09:16:24 -06:00
parent e271f43066
commit ab1c67e60e
13 changed files with 125 additions and 8 deletions
@@ -0,0 +1,41 @@
+using ErsatzTV.Core.FFmpeg;
+using ErsatzTV.Core.Interfaces.FFmpeg;
+using Microsoft.Extensions.Logging;
+
+namespace ErsatzTV.Application.Maintenance;
+
+public class ReleaseMemoryHandler : IRequestHandler<ReleaseMemory, Unit>
+{
+    private readonly IFFmpegSegmenterService _ffmpegSegmenterService;
+    private readonly ILogger<ReleaseMemoryHandler> _logger;
+
+    public ReleaseMemoryHandler(
+        IFFmpegSegmenterService ffmpegSegmenterService,
+        ILogger<ReleaseMemoryHandler> logger)
+    {
+        _ffmpegSegmenterService = ffmpegSegmenterService;
+        _logger = logger;
+    }
+
+    public Task<Unit> Handle(ReleaseMemory request, CancellationToken cancellationToken)
+    {
+        bool hasActiveWorkers = _ffmpegSegmenterService.SessionWorkers.Any() || FFmpegProcess.ProcessCount > 0;
+        if (request.ForceAggressive || !hasActiveWorkers)
+        {
+            _logger.LogDebug("Starting aggressive garbage collection");
+            GC.Collect(2, GCCollectionMode.Aggressive, blocking: true, compacting: true);
+        }
+        else
+        {
+            _logger.LogDebug("Starting garbage collection");
+            GC.Collect(2, GCCollectionMode.Forced, blocking: false);
+        }
+
+        GC.WaitForPendingFinalizers();
+        GC.Collect();
+
+        _logger.LogDebug("Completed garbage collection");
+
+        return Task.FromResult(Unit.Default);
+    }
+}