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Consider a memory of size 8KB (8192 bytes) that allows dynamic, variable sized partitioning among processes and uses a linked list to keep track of free spaces (hereafter referred to as the free list) in the memory at any given time. Assume that there are 6 processes and assume that their memory size requirements (in bytes) are as given below: P1: 500, P2: 600, P3: 1300, P4: 2000, P5: 100, P6: 200 Assume that the initial state of the free list is as shown below (BA is the base address and Sz is the size of each free space): BA: 0; Sz: 1100 → BA: 1200; Sz: 600 → BA: 2000; Sz: 1800 → BA: 6000; Sz 400

Consider a memory of size 8KB (8192 bytes) that allows dynamic, variable sized partitioning among processes and uses a linked list to keep track of free spaces (hereafter referred to as the free list) in the memory at any given time. Assume that there are 6 processes and assume that their memory size requirements (in bytes) are as given below: P1: 500, P2: 600, P3: 1300, P4: 2000, P5: 100, P6: 200 Assume that the initial state of the free list is as shown below (BA is the base address and Sz is the size of each free space): BA: 0; Sz: 1100 → BA: 1200; Sz: 600 → BA: 2000; Sz: 1800 → BA: 6000; Sz 400

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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**Memory Management and Free Lists** Consider a memory of size 8KB (8192 bytes) that allows **dynamic, variable sized** partitioning among processes and uses a linked list to keep track of free spaces (hereafter referred to as the **free list**) in the memory at any given time. Assume that there are 6 processes and assume that their memory size requirements (in bytes) are as given below: - **P1**: 500 - **P2**: 600 - **P3**: 1300 - **P4**: 2000 - **P5**: 100 - **P6**: 200 Assume that the **initial state** of the free list is as shown below (BA is the base address and Sz is the size of each free space): - **BA**: 0; **Sz**: 1100 - **BA**: 1200; **Sz**: 600 - **BA**: 2000; **Sz**: 1800 - **BA**: 6000; **Sz**: 400 This example demonstrates how memory is managed using a free list in a dynamic partitioning system. Each entry in the free list represents a contiguous block of available memory. As processes are executed, memory from these free spaces is allocated, and the list is updated accordingly.
Transcribed Image Text:**Memory Management and Free Lists** Consider a memory of size 8KB (8192 bytes) that allows **dynamic, variable sized** partitioning among processes and uses a linked list to keep track of free spaces (hereafter referred to as the **free list**) in the memory at any given time. Assume that there are 6 processes and assume that their memory size requirements (in bytes) are as given below: - **P1**: 500 - **P2**: 600 - **P3**: 1300 - **P4**: 2000 - **P5**: 100 - **P6**: 200 Assume that the **initial state** of the free list is as shown below (BA is the base address and Sz is the size of each free space): - **BA**: 0; **Sz**: 1100 - **BA**: 1200; **Sz**: 600 - **BA**: 2000; **Sz**: 1800 - **BA**: 6000; **Sz**: 400 This example demonstrates how memory is managed using a free list in a dynamic partitioning system. Each entry in the free list represents a contiguous block of available memory. As processes are executed, memory from these free spaces is allocated, and the list is updated accordingly.
### Memory Allocation Exercise **Question:** If P1 is allocated, what is the BA? [Input Box] **Instructions:** When allocating memory in blocks, the "BA" represents the Block Address and "Sz" represents Size. Assess the memory allocation process by understanding the following sequence. **Updated Free List:** - **Block 1:** - BA: [Input Box]; Sz: [Input Box] - ➔ BA: [Input Box]; Sz: [Input Box] - **Block 2:** - ➔ BA: [Input Box]; Sz: [Input Box] - ➔ BA: [Input Box] - **Block 3:** - BA: [Input Box]; Sz: [Input Box] This exercise involves filling in the updated block address (BA) and size (Sz) as blocks are allocated.
Transcribed Image Text:### Memory Allocation Exercise **Question:** If P1 is allocated, what is the BA? [Input Box] **Instructions:** When allocating memory in blocks, the "BA" represents the Block Address and "Sz" represents Size. Assess the memory allocation process by understanding the following sequence. **Updated Free List:** - **Block 1:** - BA: [Input Box]; Sz: [Input Box] - ➔ BA: [Input Box]; Sz: [Input Box] - **Block 2:** - ➔ BA: [Input Box]; Sz: [Input Box] - ➔ BA: [Input Box] - **Block 3:** - BA: [Input Box]; Sz: [Input Box] This exercise involves filling in the updated block address (BA) and size (Sz) as blocks are allocated.
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