in in Foreach The performance comparison of the performance comparison: Which is faster?

In C# and other .NET languages, when selecting the circular structure iterative collection, it is often involved in which cycle type performance is higher. Although it is generally considered

, the cycle Foreach is fast, but the actual performance may vary from the collection type and specific scene.

on

list

for
• is slightly slower than ] FOREACH cycle, the performance difference is about 2 times. on the array for on the array: In the generic and non -generic arrays, the performance of for is significantly higher than that
• on the array of on the array of on the array of on the array ] collection foreach is about 5 times faster. Essence
factor that affects performance
• The performance differences between the performance differences between for and Foreach can be attributed to the following factors: ] iteration overhead: Foreach
The cycle has additional overhead related to the enumeration process, which will affect the execution time.

Optimization: The array in

Compiler Optimization: The compiler may be more effectively optimized more effectively than Foreach cycle

• in conclusion Although
is usually provided better performance when iterates in .NET, the actual speed difference may depend on the specific collection types and scenes. For applications that are sensitive to performance (very important per millisecond), it is recommended to conduct a benchmark test for different types of cycles and select a cycle of the optimal execution speed.