CS-GY_6233_OperatingSystems

CS-GY 6233 Operating Systems Final Project

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How to run

To compile all 6 parts and the fast.c file Run : sh build.sh

Part 1

Program that can read and write a file from disk using the standard C/C++ library’s open, read, write, and close functions.

How to execute : `./run FILE_NAME [-r | -w] BLOCK_SIZE BLOCK_COUNT`

Part 2

Program to find a file size which can be read in “reasonable” time.

How to execute: `./run2 FILE_NAME BLOCK_SIZE`

Part 3

Compare different block sizes and output the performance it achieved in MiB/s.

How to execute: `./run3 FILE_NAME`

part_3_bvp

Part 4

Compare program with cached and non-cached data

How to execute: `./run4 FILE_NAME BLOCK_SIZE`

part_4_bvp

Part 5

Compare System calls for Block Size of 1 Byte, which will give number of system calls per second

How to execute: `./run5 FILE_NAME`

READ vs LSEEK comparison part_5_bvt

Part 6

Compare program performance with different block sizes and threads

How to execute: `./run6 FILE_NAME`

(Partial O/P)

part_6_bvpvt

X-axis: Number of Threads

Y-axis: Wall Time (seconds)

Lines : Block Size

fast.c

Program to read in the fastest possible way using analysis from previous parts

How to execute : `./fast FILE_NAME`