Compton 图形合成器优化指南

Compton 是一个轻量级的 X11 合成管理器，可以显著改善 Linux 桌面的视觉效果和性能。以下是一些优化 Compton 图形性能的方法：

基础优化配置

1. 启用后端选择：

   backend = "glx"; # 或 "xrender"（对老旧硬件更友好）
   

2. 调整刷新率：

   vsync = true;
   refresh-rate = 0; # 自动检测，或手动设置为显示器刷新率
   

高级性能优化

1. GLX 后端优化：

   glx-no-stencil = true;
   glx-no-rebind-pixmap = true;
   glx-swap-method = "buffer-age"; # 或 "exchange"
   

2. 减少阴影效果开销：

   shadow = true; # 禁用可提升性能
   shadow-radius = 12;
   shadow-offset-x = -15;
   shadow-offset-y = -15;
   shadow-opacity = 0.8;
   shadow-exclude = [
      "name = 'Notification'",
      "class_g = 'Conky'",
      "class_g ?= 'Notify-osd'",
      "class_g = 'Cairo-clock'",
      "_GTK_FRAME_EXTENTS@:c"
   ];
   

3. 透明度优化：

   inactive-opacity = 1.0;
   active-opacity = 1.0;
   frame-opacity = 1.0;
   opacity-rule = [
      "100:class_g = 'URxvt'",
      "100:class_g = 'XTerm'"
   ];
   

4. 排除不需要合成的窗口：

   no-dock-shadow = true;
   no-dnd-shadow = true;
   clear-shadow = true;
   detect-rounded-corners = true;
   detect-client-opacity = true;
   

硬件特定优化

1. Intel 集成显卡：

   backend = "glx";
   glx-no-stencil = true;
   glx-copy-from-front = false;
   glx-swap-method = "buffer-age";
   

2. NVIDIA 显卡：

   backend = "glx";
   glx-no-stencil = true;
   glx-no-rebind-pixmap = true;
   glx-swap-method = "exchange";
   

3. AMD 显卡：

   backend = "glx";
   glx-no-stencil = true;
   glx-no-rebind-pixmap = true;
   glx-swap-method = "undefined";
   

调试与性能测试

1. 启动时添加 --benchmark 参数测试性能：

   compton --benchmark 200
   

2. 使用 --log-level 参数查看详细日志：

   compton --log-level DEBUG
   

3. 监控性能影响：

   watch -n 1 cat /proc/*/stat | grep -E "Xorg|compton"
   

推荐配置示例

backend = "glx";
glx-no-stencil = true;
glx-no-rebind-pixmap = true;
use-damage = true;
vsync = true;

shadow = false;
fading = false;
dbe = false;

mark-wmwin-focused = true;
mark-ovredir-focused = true;
detect-rounded-corners = true;
detect-client-opacity = true;

根据您的硬件和需求调整这些设置，通常需要在视觉效果和性能之间找到平衡点。