Lesson 08.3
Head-of-line blocking
Head-of-line blocking occurs when one slow item at the front of an ordered queue prevents independent fast items behind it from starting.
One huge image blocks tiny thumbnails
Ava uploads one huge cookie picture. Ben's tiny pictures should not wait behind the whole upload.
In this lesson you'll
- 1Follow one run and learn how to read the picture
- 2Predict what changes before revealing the result
- 3Compare the controls and keep the computer inside its safe line during the rush