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Implement limiting caches (#13605)

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* Implement basic expiring cache for LibraryManager

* Add expiring cache to more places

* Rider why

* Make DirectoryService caches static

* Use FastConcurrentLru

* Reduce default cache size

* Simplify DirectoryService caches

* Make directory service cache size at least 128
This commit is contained in:
Cody Robibero
2025-03-27 18:16:54 -06:00
committed by GitHub
parent e9331fe9d7
commit 88ceaa39b0
8 changed files with 37 additions and 31 deletions
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19
Emby.Server.Implementations/Library/LibraryManager.cs
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@@ -2,7 +2,6 @@
#pragma warning disable CA5394
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
@@ -11,6 +10,7 @@ using System.Net;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using BitFaster.Caching.Lru;
using Emby.Naming.Common;
using Emby.Naming.TV;
using Emby.Server.Implementations.Library.Resolvers;
@@ -64,7 +64,6 @@ namespace Emby.Server.Implementations.Library
private const string ShortcutFileExtension = ".mblink";
private readonly ILogger<LibraryManager> _logger;
private readonly ConcurrentDictionary<Guid, BaseItem> _cache;
private readonly ITaskManager _taskManager;
private readonly IUserManager _userManager;
private readonly IUserDataManager _userDataRepository;
@@ -81,6 +80,7 @@ namespace Emby.Server.Implementations.Library
private readonly IPeopleRepository _peopleRepository;
private readonly ExtraResolver _extraResolver;
private readonly IPathManager _pathManager;
private readonly FastConcurrentLru<Guid, BaseItem> _cache;
/// <summary>
/// The _root folder sync lock.
@@ -150,7 +150,9 @@ namespace Emby.Server.Implementations.Library
_mediaEncoder = mediaEncoder;
_itemRepository = itemRepository;
_imageProcessor = imageProcessor;
_cache = new ConcurrentDictionary<Guid, BaseItem>();
_cache = new FastConcurrentLru<Guid, BaseItem>(_configurationManager.Configuration.CacheSize);
_namingOptions = namingOptions;
_peopleRepository = peopleRepository;
_pathManager = pathManager;
@@ -158,7 +160,7 @@ namespace Emby.Server.Implementations.Library
_configurationManager.ConfigurationUpdated += ConfigurationUpdated;
RecordConfigurationValues(configurationManager.Configuration);
RecordConfigurationValues(_configurationManager.Configuration);
}
/// <summary>
@@ -306,7 +308,7 @@ namespace Emby.Server.Implementations.Library
}
}
_cache[item.Id] = item;
_cache.AddOrUpdate(item.Id, item);
}
public void DeleteItem(BaseItem item, DeleteOptions options)
@@ -460,14 +462,13 @@ namespace Emby.Server.Implementations.Library
item.SetParent(null);
_itemRepository.DeleteItem(item.Id);
_cache.TryRemove(item.Id, out _);
foreach (var child in children)
{
_itemRepository.DeleteItem(child.Id);
_cache.TryRemove(child.Id, out _);
}
_cache.TryRemove(item.Id, out _);
ReportItemRemoved(item, parent);
}
@@ -1255,7 +1256,7 @@ namespace Emby.Server.Implementations.Library
throw new ArgumentException("Guid can't be empty", nameof(id));
}
if (_cache.TryGetValue(id, out BaseItem? item))
if (_cache.TryGet(id, out var item))
{
return item;
}
@@ -1272,7 +1273,7 @@ namespace Emby.Server.Implementations.Library
/// <inheritdoc />
public T? GetItemById<T>(Guid id)
where T : BaseItem
where T : BaseItem
{
var item = GetItemById(id);
if (item is T typedItem)