Comparing Buffered and Unbuffered Writing Performance : Input Output Stream « File Input Output « Java

1. Java
2. File Input Output
3. Input Output Stream

Comparing Buffered and Unbuffered Writing Performance

import java.io.BufferedOutputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.Date; publicclass BufferDiff { publicstaticvoid main(String args[]) throws IOException { FileOutputStream unbufStream; BufferedOutputStream bufStream; unbufStream = new FileOutputStream("test.one"); bufStream = new BufferedOutputStream(new FileOutputStream("test.two")); System.out.println("Write file unbuffered: " + time(unbufStream) + "ms"); System.out.println("Write file buffered: " + time(bufStream) + "ms"); } staticint time(OutputStream os) throws IOException { Date then = new Date(); for (int i = 0; i < 500000; i++) { os.write(1); } os.close(); return (int) ((new Date()).getTime() - then.getTime()); } } 

Related examples in the same category

1.	Buffer Equality
2.	Input and output with human-readable text files
3.	Input and output of primitive values with binary files
4.	Input and output of arrays and objects with binary files
5.	Input and output of primitive values with random access binary files
6.	Input and output using strings and string buffers
7.	Timing Unbuffered Reads
8.	Reading Bytes from a DataInputStream
9.	Read a file and print, using LineReader and System.out
10.	Demonstrate ProgressMeterInputStream
11.	Converting text to and from ByteBuffers
12.	Demonstrates standard I/O redirection
13.	Creating a very large file using mapping
14.	Demonstrates the use of the File class to create directories and manipulate files
15.	Mapping an entire file into memory for reading
16.	Mapped IO
17.	What happens when the entire file isn't in your mapping region
18.	Object serialization
19.	Locking portions of a mapped file
20.	File read and write