software

Tuning Guides and Performance Analysis Papers

Intel® VTune™ Amplifier XE Tuning Guides

Our tuning guides explain how to identify common software performance issues using VTune Amplifier XE, and give suggestions for optimization.

  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • Server
  • C#
  • C/C++
  • Fortran
  • Java*
  • Intermedio
  • Intel® VTune™ Amplifier XE
  • Haswell
  • Sandy Bridge
  • ivy bridge
  • Many Integrated Core
  • Xeon Phi coprocessor
  • Nehalem
  • Xeon
  • Tuning Guide
  • performance
  • software
  • Ottimizzazione
  • Solitude and Zombies: Waking up to a New Gaming Industry

     

    A long time ago, a mentor encouraged me to wake up earlier each day and spend some quiet time thinking about what’s going on in my life. While my job responsibilities and family were growing, my attention span was shrinking. I was becoming someone that life just “happened to.” I didn’t like it and he was tired of hearing me complain about it. So now I slow down a little each morning  to thoughtfully consider my priorities and the bigger picture of life. It’s really helped me to prioritize my time (as well as remember all my kids’ names).  

    n-bodies: a parallel TBB solution: parallel code: a fresh look using recursive parallelism

    When last I had a chance to play with this code, I experimented with using multiple locks to enable multiple simultaneous (and disjoint) interactions between pairs of bodies.  It helped but performance still didn’t cross the base line using only one thread.  Overhead in the loop could be reduced by using only one scoped lock instead of two, but it would require an array of locks indexed by i, and j.

    Fun with Locks and Waits - Performance Tuning

    At times threaded software requires some critical sections, mutexes or locks.   Do developers always know which of the objects in their code has the most impact?   If I want to examine my software to minimize the impact or restructure data to eliminate some of these synchronization objects and improve performance, how do I know where I should make changes to get the biggest performance improvement?    Intel Parallel Amplifier can help me determine this.    

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