IEnumerable vs IEnumerator in C#: One is 2x Faster - LinkedIn Edition
Read OriginalThis article critically examines a popular LinkedIn post claiming one C# enumeration interface is 2x faster than the other. It presents the benchmark code, explains the fundamental difference between IEnumerable and IEnumerator, and then details three major flaws in the benchmark methodology that invalidate the performance claim, including the use of Debug.WriteLine and a tiny sample size.
0 comments
Comments
No comments yet
Be the first to share your thoughts!
Browser Extension
Get instant access to AllDevBlogs from your browser
Top of the Week
1
Using Browser Apis In React Practical Guide
Jivbcoop
•
2 votes
2
Better react-hook-form Smart Form Components
Maarten Hus
•
2 votes
3
Top picks — 2026 January
Paweł Grzybek
•
1 votes
4
In Praise of –dry-run
Henrik Warne
•
1 votes
5
Deep Learning is Powerful Because It Makes Hard Things Easy - Reflections 10 Years On
Ferenc Huszár
•
1 votes
6
Vibe coding your first iOS app
William Denniss
•
1 votes
7
AGI, ASI, A*I – Do we have all we need to get there?
John D. Cook
•
1 votes
8
Quoting Thariq Shihipar
Simon Willison
•
1 votes
9
Dew Drop – January 15, 2026 (#4583)
Alvin Ashcraft
•
1 votes