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102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
#include <thread>
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#include <unistd.h>
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#include <stdlib.h>
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#include "overlay.h"
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#include "gpu.h"
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#include "spdlog/spdlog.h"
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#include "nlohmann/json.hpp"
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#include <inttypes.h>
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using json = nlohmann::json;
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static bool init_intel = false;
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struct gpuInfo gpu_info_intel {};
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static char pid[10];
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static FILE *fp;
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// static void intelGpuThread(){
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// init_intel = true;
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// static char stdout_buffer[1024];
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// FILE* intel_gpu_top = popen("intel_gpu_top -J -s 500", "r");
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// int num_line = 0;
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// std::string buf;
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// int num_iterations = 0;
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// while (fgets(stdout_buffer, sizeof(stdout_buffer), intel_gpu_top)) {
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// if (num_line > 0)
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// buf += stdout_buffer;
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// num_line++;
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// if (strlen(stdout_buffer) < 4 && !strchr(stdout_buffer, '{') && !strchr(stdout_buffer, ',')) {
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// if (buf[0] != '{')
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// buf = "{\n" + buf;
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// if (num_iterations > 0){
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// buf += "\n}";
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// json j = json::parse(buf);
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// if (j.contains("engines"))
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// if (j["engines"].contains("Render/3D/0"))
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// if (j["engines"]["Render/3D/0"].contains("busy"))
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// gpu_info_intel.load = j["engines"]["Render/3D/0"]["busy"].get<int>();
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// if (j.contains("frequency"))
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// if (j["frequency"].contains("actual"))
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// gpu_info_intel.CoreClock = j["frequency"]["actual"].get<int>();
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// if (j.contains("power")){
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// if (j["power"].contains("GPU"))
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// gpu_info_intel.powerUsage = j["power"]["GPU"].get<float>();
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// if (j["power"].contains("Package"))
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// gpu_info_intel.apu_cpu_power = j["power"]["Package"].get<float>();
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// }
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// }
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// buf = "";
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// num_line = 0;
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// }
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// num_iterations++;
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// }
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// int exitcode = pclose(intel_gpu_top) / 256;
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// if (exitcode > 0){
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// if (exitcode == 127)
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// SPDLOG_INFO("Failed to open '{}'", "intel_gpu_top");
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// if (exitcode == 1)
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// SPDLOG_INFO("Missing permissions for '{}'", "intel_gpu_top");
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// SPDLOG_INFO("Disabling gpu_stats");
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// _params->enabled[OVERLAY_PARAM_ENABLED_gpu_stats] = false;
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// }
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// }
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void getIntelGpuInfo(){
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static char path[100] = "/proc/";
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if (!init_intel){
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sprintf(pid, "%i", getpid());
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strcat(path, pid);
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strcat(path, "/fdinfo/8");
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fp = fopen(path, "r");
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init_intel = true;
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}
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fp = fopen(path, "r");
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static char line[100];
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static uint64_t busy_ns;
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static uint64_t prev_ns;
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static uint64_t busy_percent;
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while (fgets(line, sizeof(line), fp))
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sscanf(line, "drm-engine-render: %" PRId64 " ns", &busy_ns);
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if (busy_ns < prev_ns){
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fclose(fp);
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return;
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}
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uint64_t busy_time_ns = busy_ns - prev_ns;
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busy_percent = busy_time_ns / 5000000;
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prev_ns = busy_ns;
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if (busy_percent > 100) busy_percent = 100;
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gpu_info_intel.load = busy_percent;
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gpu_info = gpu_info_intel;
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fclose(fp);
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}
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