Loop unrolling

由 JC Huang 著作 · 被引用 63 次 — Loop unrolling was initially developed for reducing loop overhead and for exposing instruction- level parallelism for machines with multiple functional units.

2015年1月27日 — Given 1.0E6 iterations, 3.0E08 nanoseconds will be due to overhead. Subtract this quantity from your measurements for a more accurate ...

The overhead in tight loops often consists of instructions to increment a pointer or index to the next element in an array (pointer arithmetic), as well as  ...

Reducing Loop Overhead. Loop unrolling is a technique used to increase the number of instructions executed between executions of the loop branch logic. This ...

The main benefits of loop unrolling are similar to those of function inlining: Loop overhead, i.e., incrementing and testing of the loop counter, is reduced.

Zero-overhead looping is a feature of some processor instruction sets whose hardware can repeat the body of a loop automatically, rather than requiring software ...

2014年10月26日 — Loop unrolling 是把編譯期就已知迴圈次數的迴圈展開，變成許多重複的程式碼，藉此去除迴圈的overhead：判斷迴圈是否達到終止條件。舉例來說 int ...

2010年12月12日 — Overhead Profiler-开源 · 这是一个简单的C / C ++工具，用于准确地描述多线程应用程序中的某些功能/代码块。 特别是，此工具可用于精确测量开销。