Anteru's blog
  • Consulting
  • Research
    • Assisted environment probe placement
    • Assisted texture assignment
    • Error Metrics for Smart Image Refinement
    • High-Quality Shadows for Streaming Terrain Rendering
    • Hybrid Sample-based Surface Rendering
    • Interactive rendering of Giga-Particle Fluid Simulations
    • Quantitative Analysis of Voxel Raytracing Acceleration Structures
    • Real-time Hybrid Hair Rendering
    • Scalable rendering for very large meshes
    • Subpixel Reconstruction Antialiasing
    • Tiled light trees
  • About
  • Archive

Compiler magic

August 19, 2007
  • Optimisation
  • Programming
approximately 1 minutes to read

Just seen this: Inside template heavy code, Visual C++ 8 was able to unroll a loop and add a prefetchnta call to prefetch data - first time I’ve seen this with VC++ 8. Well done, folks!

Update: This seems even to work if the target location of the prefetched byte is computed via a static function call, cause it adds a prefetch inside code where all access happens via matrix (row, column); (which in turns calls a small function to compute the exact memory location), now that is cool!

Previous post
Next post

Recent posts

  • Five years of GPU DB
    Posted on 2020-09-27
  • Enabling SSL in your local network
    Posted on 2020-05-17
  • Goodbye, Bitbucket!
    Posted on 2020-03-19
  • QEMU, KVM and trim
    Posted on 2020-01-26
  • Fixing network after Ubuntu 19.04 to 19.10 upgrade
    Posted on 2019-10-26
  • Older posts

Find me on the web

  • GitHub
  • GPU database
  • Projects

Follow me

NIV_Anteru

Contents © 2005-2021 | Anteru | Imprint/Impressum | Privacy policy/Datenschutz