Computer, Enhance!

Q&A #83 (2026-03-11)

Answers to questions from the last Q&A thread.

Mar 12

37

13

1:16:33

Dependency Chain Stalls

The CPU's ability to extract parallelism has its limits.

Mar 4

58

5

1

29:55

January 2026

Q&A #82 (2026-01-27)

Answers to questions from the last Q&A thread.

Jan 27

59

25

4

48:27

December 2025

Dead Code Elimination Prevention Macros

Watch now (26 mins) | This is the eighth video in Part 5 of the Performance-Aware Programming series.

Dec 29, 2025

48

10

25:56

Q&A #81 (2025-12-22)

Answers to questions from the last Q&A thread.

Dec 23, 2025

82

31

52:31

November 2025

Our Nemesis Returns

To avoid spoiling the surprise for people who have not yet done the homework, I cannot be any more specific in the title.

Nov 3, 2025

55

16

12:43

Q&A #80 (2025-10-31)

Answers to questions from the last Q&A thread.

Nov 1, 2025

38

11

50:18

October 2025

Better Prevention of Dead Code Elimination - Or Is It?

The most straightforward way of isolating a section of optimized code has a hidden gotcha.

Oct 22, 2025

52

1

12:06

September 2025

Q&A #79 (2025-09-28)

Answers to questions from the last Q&A thread.

Sep 29, 2025

59

29

2

1:44:43

August 2025

Reading CPU Diagrams

If you've followed the Performance-Aware Programming course up to this point, you already know everything you need to know to ballpark CPU performance…

Aug 20, 2025

75

2

2

30:40

July 2025

Q&A #78 (2025-07-21)

Answers to questions from the last Q&A thread.

Jul 21, 2025

49

28

22:48

June 2025

Selectively Preventing Optimizations

When we want to microbenchmark code in a high-level language, we want almost all optimizations applied - except for the ones that would remove the code…

Jun 29, 2025

59

7

32:26