v0.19.0 — Bump default parallel segments 8→16 to shorten end-of-DL tail
Issue : on a 14 GB download with 8 segments, when 7 finish there's only 1 connection left handling its assigned 1.75 GB → apparent throughput collapses to 1/8th of the peak for the final stretch (~5 min visible slowdown at the end). Quick fix : double the default segment count. - 8 segments : last has 1.75 GB to finish alone - 16 segments : last has 875 MB → tail ~halved Tuning surfaced in Settings → Avancés → Serveur as « Connexions parallèles pour les téléchargements (1-32, défaut 16) ». Power users on faster servers can push to 24-32. OVH mutualisé tolerates up to 16-24 ; above that, soft rate-limiting kicks in. Aligned : - LocalConfig default : 8 → 16 - DownloadManager clamp : Math.Clamp(_, 1, 16) → 1, 32 - HttpClient handler MaxConnectionsPerServer : 16 → 32 (matches new ceiling) Versions bumped to 0.19.0. Existing config.json files will keep their previous value (8) untouched ; delete config.json to pick up the new default, or just bump it in Settings → Avancés. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
@@ -112,16 +112,16 @@ public partial class App : Application
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services.AddSingleton(sp =>
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{
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// Handler tuné pour les gros téléchargements parallèles :
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// - MaxConnectionsPerServer=16 pour autoriser le multi-segment (8 par défaut).
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// - AutomaticDecompression sur l'API JSON uniquement (None ici car les builds
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// sont des ZIPs déjà compressés ; éviter la CPU+RAM gaspillée par un éventuel
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// wrapping gzip côté serveur).
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// - MaxConnectionsPerServer=32 pour aligner avec le clamp DownloadManager (8-32).
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// Default WPF = 8 → trop bas pour notre multi-segment.
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// - AutomaticDecompression=None : les builds sont des ZIPs déjà compressés ;
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// éviter la CPU+RAM gaspillée par un éventuel wrapping gzip côté serveur.
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// - PooledConnectionLifetime court pour éviter qu'OVH ferme nos sockets sous nous.
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var handler = new SocketsHttpHandler
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{
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PooledConnectionLifetime = TimeSpan.FromMinutes(5),
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PooledConnectionIdleTimeout = TimeSpan.FromSeconds(60),
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MaxConnectionsPerServer = 16,
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MaxConnectionsPerServer = 32,
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EnableMultipleHttp2Connections = true,
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AutomaticDecompression = System.Net.DecompressionMethods.None,
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};
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@@ -15,9 +15,9 @@
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<Product>PROSERVE Launcher</Product>
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<Copyright>© 2026 ASTERION VR — All rights reserved</Copyright>
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<RootNamespace>PSLauncher.App</RootNamespace>
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<Version>0.18.0</Version>
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<AssemblyVersion>0.18.0.0</AssemblyVersion>
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<FileVersion>0.18.0.0</FileVersion>
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<Version>0.19.0</Version>
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<AssemblyVersion>0.19.0.0</AssemblyVersion>
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<FileVersion>0.19.0.0</FileVersion>
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<!-- Single-file self-contained publish profile (used by `dotnet publish`) -->
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<PublishSingleFile>true</PublishSingleFile>
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@@ -49,6 +49,7 @@ public sealed partial class SettingsViewModel : ObservableObject
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[ObservableProperty] private string _language;
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[ObservableProperty] private string _reportUrl;
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[ObservableProperty] private string _documentationUrl;
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[ObservableProperty] private int _parallelSegments;
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// ----- DB Migration settings -----
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[ObservableProperty] private string _dbHost;
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@@ -173,6 +174,7 @@ public sealed partial class SettingsViewModel : ObservableObject
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_language = string.IsNullOrWhiteSpace(config.Language) ? "auto" : config.Language;
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_reportUrl = config.ReportUrl;
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_documentationUrl = config.DocumentationUrl;
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_parallelSegments = config.ParallelDownloadSegments;
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_dbHost = config.Database.Host;
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_dbPort = config.Database.Port;
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@@ -303,6 +305,7 @@ public sealed partial class SettingsViewModel : ObservableObject
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_config.Language = Language ?? "auto";
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_config.ReportUrl = ReportUrl?.Trim() ?? "";
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_config.DocumentationUrl = DocumentationUrl?.Trim() ?? "";
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_config.ParallelDownloadSegments = Math.Clamp(ParallelSegments, 1, 32);
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// DB settings
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_config.Database.Host = DbHost.Trim();
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@@ -230,6 +230,19 @@
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Background="#1A1A20" Foreground="{StaticResource Brush.Text.Primary}"
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BorderBrush="{StaticResource Brush.Border}" BorderThickness="1" Padding="8"
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FontFamily="Consolas" />
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<!-- Connexions parallèles : tuning de la queue de fin de DL -->
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<TextBlock Text="{x:Static loc:Strings.SettingsParallelSegments}"
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Foreground="{StaticResource Brush.Text.Secondary}"
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FontSize="12" Margin="0,16,0,4" />
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<TextBox Text="{Binding ParallelSegments, UpdateSourceTrigger=PropertyChanged}"
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Background="#1A1A20" Foreground="{StaticResource Brush.Text.Primary}"
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BorderBrush="{StaticResource Brush.Border}" BorderThickness="1" Padding="8"
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Width="80" HorizontalAlignment="Left" />
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<TextBlock Text="{x:Static loc:Strings.SettingsParallelSegmentsHint}"
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Foreground="{StaticResource Brush.Text.Secondary}"
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FontSize="11" FontStyle="Italic" Margin="0,4,0,0"
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TextWrapping="Wrap" />
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</StackPanel>
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</Border>
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@@ -176,7 +176,10 @@ public sealed class DownloadManager : IDownloadManager
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}
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// 2. Choix single vs multi-segment
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var requestedSegments = Math.Clamp(_config.ParallelDownloadSegments, 1, 16);
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// Hard-cap à 32 : au-delà OVH mutualisé risque le rate-limit per-IP et le
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// gain marginal devient négatif. 16 = défaut, 24-32 OK pour les serveurs
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// qui le supportent. 1 = comportement single-segment legacy.
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var requestedSegments = Math.Clamp(_config.ParallelDownloadSegments, 1, 32);
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var useMultiSegment = requestedSegments > 1
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&& job.ExpectedSize >= MultiSegmentMinSize
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&& (existing is null || existing.Segments.Count > 0);
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@@ -177,6 +177,21 @@ public static class Strings
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$"تعذر تحميل {url}\n\n{detail}\n\nتأكد من تشغيل XAMPP وأن العنوان صحيح (الإعدادات → متقدم)."
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);
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public static string SettingsParallelSegments => T(
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"Connexions parallèles pour les téléchargements (1-32, défaut 16)",
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"Parallel connections for downloads (1-32, default 16)",
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"下载的并行连接数 (1-32，默认 16)",
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"การเชื่อมต่อแบบขนานสำหรับการดาวน์โหลด (1-32, ค่าเริ่มต้น 16)",
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"اتصالات متوازية للتنزيلات (1-32، الافتراضي 16)"
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);
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public static string SettingsParallelSegmentsHint => T(
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"Plus de connexions = débit pic plus élevé et queue de fin de DL plus courte. Au-delà de 16 le serveur peut throttler.",
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"More connections = higher peak throughput and shorter end-of-DL tail. Above 16 the server may throttle.",
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"更多连接 = 更高的峰值吞吐量和更短的下载尾部。超过 16 服务器可能会限速。",
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"การเชื่อมต่อมากขึ้น = ปริมาณงานสูงสุดมากขึ้นและส่วนท้ายของการดาวน์โหลดสั้นลง สูงกว่า 16 เซิร์ฟเวอร์อาจจำกัด",
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"اتصالات أكثر = إنتاجية ذروة أعلى وذيل تنزيل أقصر. فوق 16 قد يقيّد الخادم."
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);
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public static string SettingsAdvanced => T(
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"▸ PARAMÈTRES AVANCÉS (serveur, installation, base de données, logs)",
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"▸ ADVANCED SETTINGS (server, installation, database, logs)",
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@@ -16,9 +16,13 @@ public sealed class LocalConfig
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/// <summary>
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/// Nombre de connexions HTTP parallèles utilisées pour télécharger un build.
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/// 1 = comportement legacy single-connection. 4-8 contourne le throttling
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/// per-connection d'Apache/OVH mutualisé. 8 est un bon défaut.
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/// per-connection d'Apache/OVH mutualisé. 16 = défaut depuis v0.19 pour
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/// raccourcir la « queue » en fin de DL : avec 8 segments sur 14 Go, le
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/// dernier segment doit finir seul ~1.75 Go (visible comme un effondrement
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/// du débit en fin de course) ; avec 16, c'est ~875 Mo. Push à 24/32 si
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/// ton serveur l'accepte (OVH mutualisé tient bien jusqu'à 16-24).
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/// </summary>
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public int ParallelDownloadSegments { get; set; } = 8;
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public int ParallelDownloadSegments { get; set; } = 16;
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/// <summary>
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/// Si false, ignore la vérification SHA-256 même si le manifest l'exige.
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@@ -8,7 +8,7 @@
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<LangVersion>latest</LangVersion>
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<AssemblyName>PS_Launcher.Updater</AssemblyName>
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<RootNamespace>PSLauncher.Updater</RootNamespace>
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<Version>0.18.0</Version>
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<Version>0.19.0</Version>
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<ApplicationIcon>..\PSLauncher.App\Resources\favicon.ico</ApplicationIcon>
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<Company>ASTERION VR</Company>
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<Copyright>© 2026 ASTERION VR — All rights reserved</Copyright>
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