OmniNX/Horizon-OC
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[Sys-clk-OC] Added an governor toggle per title in overlay (default: governor enabled) (#37); Fixed an issue where governor does not bump CPU frequency immediately to max when some non-system core (Core0/1/2) util is 100%.

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This commit is contained in:
KazushiM
2022-10-28 22:00:44 +08:00
parent 851839be0a
commit a6dcf1da5c
13 changed files with 151 additions and 113 deletions
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21
Source/sys-clk-OC/sysmodule/src/oc_extra.h
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@@ -48,7 +48,8 @@ public:
ReverseNXMode GetMode();
protected:
ReverseNXMode m_rt_mode, m_tool_mode;
std::atomic<ReverseNXMode> m_rt_mode;
ReverseNXMode m_tool_mode;
uint64_t m_app_id = 0;
bool m_tool_enabled;
bool m_sync_enabled;
@@ -81,7 +82,6 @@ protected:
bool m_running = false;
Thread m_t_cpuworker[CORE_NUMS], m_t_main;
std::atomic<uint64_t> m_core3_stuck_cnt = 0;
uint32_t m_nvgpu_field;
uint32_t m_mem_freq;
@@ -108,32 +108,29 @@ protected:
Governor* self;
int id;
uint32_t util;
uint64_t timestamp;
} s_CoreContext;
s_CoreContext m_cpu_core_ctx[CORE_NUMS];
s_CoreContext* InitCoreContext(s_CoreContext* context, Governor* self, int64_t id = 0);
// PELT: https://github.com/torvalds/linux/blob/master/kernel/sched/pelt.c
// Util_acc_n = Util_0 + Util_1 * D + Util_2 * D^2 + ... + Util_n * D^n
// To approximate D (decay multiplier):
// After 100 ms (if SAMPLE_RATE == 200, 20 samples)
// (UTIL_MAX * D)^20 ≈ 1 (UTIL_MAX decayed to 1)
// D = 0.7079457843841379... ≈ 725 / 1024
// Util_acc_20 ≈ 3421, Util_acc_40 ≈ 3424, Util_acc_inf ≈ 3424
// D = 0.707946... ≈ 5799 / 8192 (epsilon < 0.0001)
// Util_acc_20 ≈ 3419, Util_acc_40 ≈ 3420, Util_acc_inf ≈ 3420
static constexpr uint32_t UTIL_MAX = 100'0;
struct s_Util {
uint32_t util_acc = 0;
static constexpr uint32_t DECAY_DIVIDENT = 725;
static constexpr uint32_t DECAY_DIVISOR = 1024;
static constexpr uint32_t UTIL_ACC_MAX = 3424;
static constexpr uint32_t DECAY_DIVIDENT = 5799;
static constexpr uint32_t DECAY_DIVISOR = 8192;
static constexpr uint32_t UTIL_ACC_MAX = 3420;
uint32_t Get() { return (util_acc * UTIL_MAX / UTIL_ACC_MAX); };
void Update(uint32_t util) { util_acc = util_acc * DECAY_DIVIDENT / DECAY_DIVISOR + util; };
};
static void CheckCpuUtilWorker(void* args);
void CheckCpuUtilWorkerAppCore(int64_t coreid);
void CheckCpuUtilWorkerSysCore();
static void CpuUtilWorker(void* args);
static void Main(void* args);
};