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iobee/testJavaWriteFilePerformance.java

Created December 11, 2017 12:28
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testJavaWriteFilePerformance
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testJavaWriteFilePerformance.java
char[] chars = new char[100*1024*1024];
Arrays.fill(chars, 'A');
String text = new String(chars);
long start = System.nanoTime();
BufferedWriter bw = new BufferedWriter(new FileWriter("/tmp/a.txt"));
bw.write(text);
bw.close();
long time = System.nanoTime() - start;
System.out.println("Wrote " + chars.length*1000L/time+" MB/s.");
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