public void Adjust_opt_target ()
{
// First epoch only set the initial UF target
if (m_opt_counter == 1) {
m_uf_target = m_currunfairness;
m_opt_state = OPT_STATE.FAIR_OPT;
return;
}
// if uf target meets
if (m_currunfairness - m_uf_target < 0) {
Console.WriteLine ("Meet unfairness target.");
if (++m_succ_meet_counter > Config.succ_meet_fair) {
m_uf_target = m_currunfairness - Config.uf_adjust;
m_opt_state = OPT_STATE.PERFORMANCE_OPT;
m_fair_opt_counter = 0;
m_action = THROTTLE_ACTION.UP;
} else {
m_opt_state = OPT_STATE.FAIR_OPT;
m_fair_opt_counter++;
m_action = THROTTLE_ACTION.NO_OP;
}
} else {
// uf target miss
Console.WriteLine ("Miss unfairness target.");
if (m_fair_opt_counter > Config.fair_keep_trying) {
m_uf_target = m_currunfairness - Config.uf_adjust;
m_opt_state = OPT_STATE.PERFORMANCE_OPT;
m_action = THROTTLE_ACTION.RESET;
m_fair_opt_counter = 0;
Console.WriteLine ("FAIR_OPT_COUNT reaches max value.");
} else {
m_fair_opt_counter++;
m_action = THROTTLE_ACTION.DOWN;
m_opt_state = OPT_STATE.FAIR_OPT;
}
m_succ_meet_counter = 0;
}
Console.WriteLine ("Next state is {0}", m_opt_state.ToString());
Console.WriteLine ("New UF target is {0:0.00}", m_uf_target);
}
public Controller_QoSThrottle()
{
Console.WriteLine("init Controller_QoSThrottle");
for (int i = 0; i < Config.N; i++)
{
throttle_rate [i] = 0;
throttle_node [i] = "1";
m_est_sd [i] = 1;
m_stc [i] = 0;
m_stc_unsort[i] = 0;
m_est_sd_unsort [i] = 0;
// assign initial mshr quota
mshr_quota [i] = Config.mshrs;
mshr_best_sol [i] = Config.mshrs;
app_rank [i] = 0;
app_type [i] = APP_TYPE.LATENCY_SEN;
fast_app_type [i] = APP_TYPE.STC;
most_mem_inten [i] = false;
pre_throt [i] = false;
bad_decision_counter [i] = 0;
m_actionQ [i] = THROTTLE_ACTION.NO_OP;
m_uf_target = 0;
}
m_opt_state = OPT_STATE.PERFORMANCE_OPT;
max_rank = 0;
m_slowest_core = 0;
m_fastest_core = 0;
m_perf_opt_counter = 0;
m_fair_opt_counter = 0;
m_succ_meet_counter = 0;
m_init_unfairness = 0;
m_init_perf = 0;
m_epoch_counter = 0;
m_idle_counter = 0;
m_oldperf = 0;
m_oldunfairness = 0;
m_opt_counter = 0;
m_throttle_enable = Config.throttle_enable;
m_l1miss_avg = 0;
m_sd_avg = 0;
unthrottable_count = 0;
m_action = THROTTLE_ACTION.NO_OP;
}
