Looking for opinions: .xprofile tweaks?

Userland
1

I’m in a really old machine (2011), and it works perfectly thanks to Mabox Linux.

Now, I want to improve performance. There’s no issues, just looking for squeeze a bit more from this machine. Of course, frequent maintenance routine; CPU/GPU thermal paste cleaning; SDD and RAM improved. I’m not an IT but with a bit of common sense, I tested an AI to tweak .xprofile.

What do you think about the current AI tweaked .xprofile? I want to hear you opinions and suggestions. Overambitious, naïveté, a waste of time, a missed shot?

# Graphics & Firefox optimizations
export MOZ_WEBRENDER=1
export MOZ_ACCELERATED=1
#export MOZ_DISABLE_CONTENT_SANDBOX=1  # Helps older hardware

# Mesa/OpenGL optimizations for Intel HD 3000
#export MESA_GL_VERSION_OVERRIDE=3.3
#export MESA_GLSL_VERSION_OVERRIDE=330
export MESA_SHADER_CACHE_DIR="$HOME/.cache/mesa"
export MESA_SHADER_CACHE_MAX_SIZE=256MB
#export MESA_LOADER_DRIVER_OVERRIDE=i965

# Texture compression - crucial for HD 3000's limited VRAM
export force_s3tc_enable=true
#export allow_glsl_extension_directive_midshader=true

# Intel-specific optimizations - UPDATED: less restrictive for better performance
export INTEL_DEBUG=nobuffer,color  # Better than norcb,norbc,notc
export SNA_DEBUG=no_dri3  # ENABLED: Better 2D acceleration
#export UXA_DEBUG=no_glamor

# Performance tuning - UPDATED: Enabled important performance flags
#export vblank_mode=0  # ENABLED: Uncapped FPS for better responsiveness
export __GL_YIELD=USLEEP  # ENABLED: Better GPU scheduling
#export KWIN_TRIPLE_BUFFER=1

# Mabox/Openbox specific
#export OBOX_USE_COMPOSITING=1
export QT_QPA_PLATFORM=xcb  # ENABLED: Force XCB for better compatibility

## Memory/performance
#export GL_CACHE_DISABLE=false
#export GLSL_CACHE_DISABLE=false
type or paste code here
# Memory optimizations for older hardware
export __GL_SHADER_DISK_CACHE=1
export __GL_SHADER_DISK_CACHE_PATH="$HOME/.cache/nvidia"
export __GL_SHADER_DISK_CACHE_SKIP_CLEANUP=1

# Intel-specific texture optimizations
export INTEL_BATCH_SEQ=1
export INTEL_SEQ_NO_CC=1

# Smooth scrolling for PDFs
export MOZ_USE_XINPUT2=1

# General performance
#export GC_MAX_MALLOC_SIZE=2G

## Other improvements - UPDATED: Removed problematic flags
export INTEL_FAST_CLEAR=1
export MESA_NO_ERROR=1
# REMOVED: export QT_GRAPHICSSYSTEM=raster  # Deprecated and causes issues
# REMOVED: export MOZ_DISABLE_GPU_PROCESS=1  # Hurts more than helps on older hardware

## NEW: Intel media driver optimizations for hardware video acceleration
export LIBVA_DRIVER_NAME=i965  # Use new Intel media driver for video decoding
export MFX_HW=1  # Enable hardware acceleration for media frameworks
export VDPAU_DRIVER=va_gl  # VAAPI to VDPAU bridge for better compatibility

## NEW: Additional performance optimizations
export INTEL_PRECISE_TRIG=1  # Better timing precision
export INTEL_STRICT_DEREF=0  # Relaxed memory access for better performance
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