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Merge pull request #728 from Shredder121/benchmark_output

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Log a more user friendly version of the elapsed time for benchmarks.
This commit is contained in:
Timo Westkämper 2014-05-02 21:08:14 +03:00
commit b32f8c4c63
1 changed files with 12 additions and 8 deletions
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20
querydsl-core/src/test/java/com/mysema/testutil/Runner.java
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@ -13,24 +13,28 @@
*/
package com.mysema.testutil;
import com.google.common.base.Stopwatch;
public final class Runner {
private static final int WARMUP = 50000;
private static final int BENCHMARK = 1000000;
public static void run(String label, Benchmark benchmark) throws Exception {
// warmup
benchmark.run(50000);
benchmark.run(WARMUP);
System.err.print("- ");
// run garbage collection
System.gc();
System.err.print("- ");
// perform timing
long start = System.nanoTime();
benchmark.run(1000000);
long end = System.nanoTime();
System.err.println(label + " " + ((end-start) / 1000000));
Stopwatch stopwatch = new Stopwatch().start();
benchmark.run(BENCHMARK);
System.err.println(label + " " + stopwatch.stop().toString());
}
private Runner() {}
}