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.
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).
Part 13: Example 3 (Maximizing Idle Periods) - Batch I/O requests
Part 12: Example 2 (Maximizing Idle Periods) - Avoid polling and busy wait loops
Writing the sample code for this post I was amazed myself to see how simple it was to reach over 20 times performance improvement with so little effort.
Part 11: Example 1 (Maximizing Idle Periods) - Avoid high-resolution periodic timers
Part 10: Maximizing Idle Periods
Beyond reducing computation, developers can improve power management efficiency by thinking carefully how their applications can be structured to avoid reducing system idle periods. As described previously, such idle periods give the OS opportunity to apply power-saving C-states. The longer the idle period, the deeper the C-state. The deeper the C-state, the more power savings can be realized.
This year Caltech hosted the Humanity+ conference. I had been given a press pass to attend, but for a variety of reasons, plus perhaps a bit of stay at home fever on my part I chose to send my avator to the conference instead, no, actually I streamed it instead. I sat transfixed in front of my computer for most of the first day and for as as much as I had time to the second day which was unfortunately just a few hours. I am only going to touch upon some of the many ideas that were discussed, and hope I do justice to them. Please forgive me if I misquote anyone.