This figure consists of a row of six rectangles. These rectangles are labeled in this order.

1. Eden

2. Survivor

3. Survivor

4. Virtual

5. Old

6. Virtual

Groups of rectangles are labeled as follows:

• Total size: Rectangles 1 through 6.

• Committed vs. Virtual: Committed consists of rectangles 1 through 3 and 5; virtual consists of rectangles 4 and 6.

• Old to Young ratio: Old consists of rectangles 1 through 4; young consists of rectangles 5 and 6.

• Eden to Survivor space ratio: Eden is rectangle 1; survivor space is rectangle 2.