避免 jvm 预热

If I am designing a test on sorting algorithm can I do this way to avoid JVM warmup ? Thank you!

double count = 0;
double start, end;
for(int r = 0; r < warmup; r++) {
    // do test
}
for(int t = 0; t < runs; t++){
    start = System.nanoTime();
    // do test
    end = System.nanoTime();
    count += start - end;
}
double avg = count/avg

推荐答案

JVM预热通常是指JVM找到热点并JIT这些代码段所花费的时间.如果你实际运行几百次(我相信实际上是几千次)测试，你应该会很好.