Performance Matters

Tag: c++

Jul 6, 2020
A Concurrency Cost Hierarchy
Concurrent operations can be grouped relatively neatly into categories based on their cost
Jan 20, 2020
The Hunt for the Fastest Zero
Unexpected performance deviations depending on how you spell zero.
Jan 17, 2020
Gathering Intel on Intel AVX-512 Transitions
Investigating some details of SIMD related frequency transitions on Intel CPUs.
Dec 5, 2019
A Note on Mask Registers
Some mostly too-low-level-to-care-about hardware details of the mask registers introduced in AVX-512.
Nov 19, 2019
Clang-format Tanks Performance
Can using clang-format make your code slower? Kind of.
Aug 26, 2019
Incrementing Vectors
Incrementing vector<T> for various T may not perform as you'd expect.