在Linux中优化Compton设置

Compton是一款流行的X11合成窗口管理器，可以改善桌面视觉效果并提供窗口透明、阴影等特效。以下是一些优化Compton设置的建议：

基本优化设置

1. 启用后端选择：

   backend = "glx";  # 或 "xrender"，glx通常性能更好
   

2. 垂直同步设置：

   vsync = true;  # 减少屏幕撕裂
   

3. 优化绘制性能：

   paint-on-overlay = true;
   glx-no-stencil = true;
   glx-no-rebind-pixmap = true;
   

高级优化选项

1. 阴影优化：

   shadow = true;
   shadow-radius = 12;
   shadow-offset-x = -15;
   shadow-offset-y = -15;
   shadow-opacity = 0.5;
   shadow-exclude = [
    "name = 'Notification'",
    "class_g = 'Conky'",
    "class_g ?= 'Notify-osd'",
    "class_g = 'Cairo-clock'",
    "_GTK_FRAME_EXTENTS@:c"
   ];
   

2. 透明度优化：

   inactive-opacity = 0.8;
   active-opacity = 1.0;
   frame-opacity = 0.7;
   opacity-rule = [
    "90:class_g = 'Alacritty'",
    "85:class_g = 'Termite'",
    "80:class_g = 'URxvt'"
   ];
   

3. 模糊效果（如果支持）：

   blur-background = true;
   blur-background-frame = true;
   blur-background-fixed = true;
   blur-kern = "7x7box";
   blur-method = "kawase";
   blur-strength = 12;
   

性能调优

1. 减少重绘：

   detect-transient = true;
   detect-client-leader = true;
   mark-wmwin-focused = true;
   

2. 排除不需要特效的窗口：

   unredir-if-possible = true;
   unredir-if-possible-exclude = [
    "class_g = 'Firefox'",
    "class_g = 'Chromium'"
   ];
   

3. GLX特定优化：

   glx-copy-from-front = false;
   glx-swap-method = "buffer-age";  # 或 "exchange"
   

完整示例配置

backend = "glx";
vsync = true;
paint-on-overlay = true;
glx-no-stencil = true;
glx-no-rebind-pixmap = true;

shadow = true;
shadow-radius = 12;
shadow-offset-x = -15;
shadow-offset-y = -15;
shadow-opacity = 0.5;

inactive-opacity = 0.8;
active-opacity = 1.0;
frame-opacity = 0.7;

blur-background = true;
blur-method = "kawase";
blur-strength = 12;

detect-transient = true;
detect-client-leader = true;
mark-wmwin-focused = true;
unredir-if-possible = true;

测试和调试

1. 启动Compton时使用调试模式查看性能：

   compton --config ~/.config/compton.conf --backend glx --vsync opengl-swc --log-level debug
   

2. 监控性能影响：

   watch -n 1 cat /proc/*/stat | grep -E '^(Pid|Name|^[0-9]+)' | sort -k2
   

3. 如果遇到问题，可以尝试不同的后端(xrender或glx)或禁用某些特效。

根据你的硬件和桌面环境，可能需要调整这些设置以获得最佳平衡的性能和视觉效果。