!752

p {
  thread "Burn 10%" {
    while licensed {
      limitCPU(10);
    }
  }
  
  while licensed {
    sleepSeconds(1);
    print(doze_sleepTime + " / " + doze_calcTime
      + " = " + formatDouble(((double) doze_calcTime)/doze_sleepTime,
        2));
  }
}

static int doze_granularity = 10;
static volatile long doze_calcingSince;
static volatile long doze_sleepTime, doze_calcTime;

svoid limitCPU(double percentage) {
  ping();
  if (doze_calcingSince == 0) {  // first time
    doze_calcingSince = now();
    ret;
  }
  long newCalcTime = now() - doze_calcingSince;
  if (newCalcTime >= doze_granularity) { // don't try to sleep too often
    doze_calcTime += newCalcTime;
    double ratio = percentage/100;
    double allowedCalcTime = doze_sleepTime*ratio/(1-ratio);
    long sleep = toLong(max(0, doze_calcTime-allowedCalcTime));
    if (sleep > 0) {
      sleep(sleep);
      doze_sleepTime += sleep;
    }
    doze_calcingSince = now();
  }
}