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Add experimental TSC frequency detection

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This commit is contained in:
Nekotekina 2019-07-15 17:20:12 +03:00
parent cb5c26f2b5
commit c062000288
2 changed files with 25 additions and 1 deletions
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24
Utilities/sysinfo.cpp
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@ -110,6 +110,15 @@ std::string utils::get_system_info()
fmt::append(result, "%s | %d Threads | %.2f GiB RAM", brand, num_proc, mem_total / (1024.0f * 1024 * 1024));
if (const ullong tsc_freq = get_tsc_freq())
{
fmt::append(result, " | TSC: %.02fGHz", tsc_freq / 1000000000.);
}
else
{
fmt::append(result, " | TSC: Bad");
}
if (has_avx())
{
result += " | AVX";
@ -138,7 +147,7 @@ std::string utils::get_system_info()
{
result += "-FA";
}
if (!has_mpx())
{
result += " disabled by default";
@ -214,3 +223,16 @@ std::string utils::get_OS_version()
#endif
return output;
}
ullong utils::get_tsc_freq()
{
#ifdef _WIN32
LARGE_INTEGER freq;
if (!QueryPerformanceFrequency(&freq) || freq.QuadPart > 9'999'999)
return 0;
return freq.QuadPart * 1024;
#else
// TODO
return 0;
#endif
}

2
Utilities/sysinfo.h
View File

@ -50,4 +50,6 @@ namespace utils
std::string get_firmware_version();
std::string get_OS_version();
ullong get_tsc_freq();
}