[+] Process and threaded user and kernel time keeping clocks
This commit is contained in:
parent
2d6dca4e21
commit
47746de462
@ -13,6 +13,10 @@ namespace Aurora::Time
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eWall,
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eSteady,
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eProcessTime,
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eThreadTime
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eProcessKernelTime,
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eProcessUserTime,
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eThreadTime,
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eThreadKernelTime,
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eThreadUserTime
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))
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}
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@ -91,19 +91,19 @@ namespace Aurora::Time
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AUKN_SYM AuUInt64 ThreadClockJiffies();
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/**
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* @brief time spent in userspace under this context [in jiffies]
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* @brief time spent in userspace and in the kernel under this thread [in jiffies]
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* @return
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*/
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AUKN_SYM AuUInt64 ThreadClock();
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/**
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* @brief time spent in userspace under this context [in nanoseconds]
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* @brief time spent in userspace and in the kernel under this thread [in nanoseconds]
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* @return
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*/
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AUKN_SYM AuUInt64 ThreadClockNS();
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/**
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* @brief time spent in userspace under this context [in milliseconds]
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* @brief time spent in userspace and in the kernel under this thread [in milliseconds]
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* @return
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*/
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AUKN_SYM AuUInt64 ThreadClockMS();
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@ -132,6 +132,30 @@ namespace Aurora::Time
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*/
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AUKN_SYM AuUInt64 ProcessClockMS();
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// Advanced clocks: ////////////////////////
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AUKN_SYM AuUInt64 ThreadUserClock();
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AUKN_SYM AuUInt64 ThreadUserClockNS();
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AUKN_SYM AuUInt64 ThreadUserClockMS();
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AUKN_SYM AuUInt64 ThreadUserClockJiffies();
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AUKN_SYM AuUInt64 ProcessUserClock();
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AUKN_SYM AuUInt64 ProcessUserClockNS();
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AUKN_SYM AuUInt64 ProcessUserClockMS();
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AUKN_SYM AuUInt64 ProcessUserClockJiffies();
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AUKN_SYM AuUInt64 ThreadKernelClock();
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AUKN_SYM AuUInt64 ThreadKernelClockNS();
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AUKN_SYM AuUInt64 ThreadKernelClockMS();
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AUKN_SYM AuUInt64 ThreadKernelClockJiffies();
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AUKN_SYM AuUInt64 ProcessKernelClock();
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AUKN_SYM AuUInt64 ProcessKernelClockNS();
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AUKN_SYM AuUInt64 ProcessKernelClockMS();
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AUKN_SYM AuUInt64 ProcessKernelClockJiffies();
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////////////////////////////////////////////
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/**
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Converts seconds from the Aurora epoch to time_t
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*/
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@ -167,12 +191,36 @@ namespace Aurora::Time
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*/
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AUKN_SYM AuSPtr<IClock> GetProcessClock();
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/**
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* @brief
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* @return
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*/
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AUKN_SYM AuSPtr<IClock> GetProcessUserClock();
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/**
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* @brief
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* @return
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*/
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AUKN_SYM AuSPtr<IClock> GetProcessKernelLock();
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/**
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* @brief
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* @return
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*/
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AUKN_SYM AuSPtr<IClock> GetThreadClock();
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/**
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* @brief
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* @return
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*/
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AUKN_SYM AuSPtr<IClock> GetThreadUserClock();
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/**
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* @brief
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* @return
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*/
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AUKN_SYM AuSPtr<IClock> GetThreadKernelLock();
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/**
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* @brief
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* @param clock
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@ -4,16 +4,6 @@
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File: AuClock.cpp
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Date: 2021-6-13
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Author: Reece
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Note: Screw it, std::chrono has been widly shilled at C++11s answer to all these painful macros, asm linkage, and all the other bullshit that pulling clock counters entails.
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Semantics can and will continue to change over time. I remember when, in 2016 or something like that, msvcs implementation of chrono kept changing in minor ways.
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However, every platform that remotely pretends to support a C++ toolchain has a chrono high performance clock, and any PC-like platform that uses clang and C++ more than likely uses a vendor hacked liblibc++ stl.
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The following should be portable enough. Worst case scenario, you're on a platform with a platform-specific high res clock function you could hack into here alongside portable timezone-unaware timegm/mktime functions linked somewhere else.
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There is so much quirky shit one has to deal with when relying on timestamp/cycle counters (cycle to ~time pred, plus positive delta, sometimes inlined assembly), it's just not worth it to
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implement a CNTVCT_EL0 / RDSC / related interface ourselves.
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I'll wave the white flag and use the STL in here for.now
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "AuClock.hpp"
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@ -219,177 +209,161 @@ namespace Aurora::Time
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return std::chrono::duration_cast<std::chrono::nanoseconds>(NormalizeEpoch(std::chrono::nanoseconds(time))).count();
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}
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AUKN_SYM AuUInt64 ThreadClockNS()
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{
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#if defined(AURORA_IS_POSIX_DERIVED)
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::timespec spec {};
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if (::clock_gettime(CLOCK_THREAD_CPUTIME_ID, &spec) == 0)
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{
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return AuMSToNS<AuUInt64>(AuSToMS<AuUInt64>(spec.tv_sec)) + (AuUInt64)spec.tv_nsec;
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}
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#endif
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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FILETIME creation, exit, kernel, user;
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if (::GetThreadTimes(GetCurrentThread(), &creation, &exit, &kernel, &user))
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{
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// i dont want to measure kernel and driver overhead under benchmarks, i dont think
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// im going to consider kernel time = syscalls = ipc to another sandbox/process/thread until i have a reason to change this
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// primary use case: microbenchmarks that dont care for external noise
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ULARGE_INTEGER ullUser;
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ullUser.LowPart = user.dwLowDateTime;
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ullUser.HighPart = user.dwHighDateTime;
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return ullUser.QuadPart * 100ull;
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}
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#endif
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return HighResClockNS();
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#define ADD_CLOCK_FAMILY(fn, type, expr, posixId) \
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AUKN_SYM AuUInt64 fn ## ClockJiffies(); \
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\
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AUKN_SYM AuUInt64 fn ## ClockMS() \
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{ \
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return AuNSToMS<AuUInt64>(fn ## ClockNS()); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## ClockNS() \
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{ \
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FILETIME creation, exit, kernel, user; \
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if (::Get ## type ## Times(GetCurrent ## type(), &creation, &exit, &kernel, &user)) \
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{ \
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ULARGE_INTEGER ullUser; \
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{ \
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ullUser.LowPart = user.dwLowDateTime; \
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ullUser.HighPart = user.dwHighDateTime; \
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} \
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\
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ULARGE_INTEGER ullKernel; \
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{ \
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ullKernel.LowPart = kernel.dwLowDateTime; \
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ullKernel.HighPart = kernel.dwHighDateTime; \
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} \
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return (expr) * 100ull; \
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} \
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return HighResClockNS(); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## Clock() \
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{ \
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FILETIME creation, exit, kernel, user; \
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\
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if (::Get ## type ## Times(GetCurrent ## type(), &creation, &exit, &kernel, &user)) \
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{ \
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ULARGE_INTEGER ullUser; \
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{ \
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ullUser.LowPart = user.dwLowDateTime; \
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ullUser.HighPart = user.dwHighDateTime; \
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} \
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\
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ULARGE_INTEGER ullKernel; \
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{ \
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ullKernel.LowPart = kernel.dwLowDateTime; \
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ullKernel.HighPart = kernel.dwHighDateTime; \
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} \
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return expr; \
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} \
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\
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return fn ##ClockNS() / (1000000000ull / fn ## ClockJiffies()); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## ClockJiffies() \
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{ \
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return 1000000000ull / 100u; \
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}
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AUKN_SYM AuUInt64 ThreadClockMS()
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{
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return AuNSToMS<AuUInt64>(ThreadClockNS());
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#elif defined(AURORA_IS_POSIX_DERIVED)
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#define ADD_CLOCK_FAMILY(fn, type, expr, posixId) \
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AUKN_SYM AuUInt64 fn ## ClockJiffies(); \
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\
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AUKN_SYM AuUInt64 fn ## ClockMS() \
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{ \
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if (!posixId) \
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{ \
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return {}; \
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} \
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return AuNSToMS<AuUInt64>(fn ## ClockNS()); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## ClockNS() \
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{ \
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if (!posixId) \
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{ \
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return {}; \
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} \
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::timespec spec {}; \
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if (::clock_gettime(posixId, &spec) == 0) \
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{ \
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return AuMSToNS<AuUInt64>(AuSToMS<AuUInt64>(spec.tv_sec)) + (AuUInt64)spec.tv_nsec; \
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} \
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return HighResClockNS(); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## Clock() \
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{ \
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if (!posixId) \
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{ \
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return {}; \
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} \
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return fn ##ClockNS() / (1000000000ull / fn ## ClockJiffies()); \
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} \
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\
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AUKN_SYM AuUInt64 fn ## ClockJiffies() \
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{ \
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if (!posixId) \
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{ \
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return {}; \
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} \
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static AuUInt64 frequency = 0; \
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if (frequency != 0) \
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{ \
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return frequency; \
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} \
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\
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::timespec spec {}; \
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if (::clock_getres(posixId, &spec) == 0) \
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{ \
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if (spec.tv_nsec && !spec.tv_sec) \
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{ \
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return frequency = 1000000000ull / spec.tv_nsec; \
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} \
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else \
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{ \
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SysUnreachable(); \
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return 0; \
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} \
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} \
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\
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return HighResClockJiffies(); \
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}
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AUKN_SYM AuUInt64 ThreadClock()
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{
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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FILETIME creation, exit, kernel, user;
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if (::GetThreadTimes(GetCurrentThread(), &creation, &exit, &kernel, &user))
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{
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ULARGE_INTEGER ull;
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ull.LowPart = user.dwLowDateTime;
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ull.HighPart = user.dwHighDateTime;
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return ull.QuadPart;
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}
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#endif
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#else
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return ThreadClockNS() / (1000000000ull / ThreadClockJiffies());
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}
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AUKN_SYM AuUInt64 ThreadClockJiffies()
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AUKN_SYM AuUInt64 fn ## ClockMS()
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{
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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return 1000000000ull / 100u;
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#endif
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static AuUInt64 frequency = 0;
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if (frequency != 0)
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{
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return frequency;
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}
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#if defined(AURORA_IS_POSIX_DERIVED)
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::timespec spec {};
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if (::clock_getres(CLOCK_THREAD_CPUTIME_ID, &spec) == 0)
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{
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if (spec.tv_nsec && !spec.tv_sec)
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{
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return frequency = 1000000000ull / spec.tv_nsec;
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}
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else
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{
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SysUnreachable();
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return 0;
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}
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}
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#endif
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return HighResClockJiffies();
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}
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AUKN_SYM AuUInt64 ProcessClockNS()
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AUKN_SYM AuUInt64 fn ## ClockNS()
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{
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#if defined(AURORA_IS_POSIX_DERIVED)
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::timespec spec {};
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if (::clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &spec) == 0)
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{
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return AuMSToNS<AuUInt64>(AuSToMS<AuUInt64>(spec.tv_sec)) + (AuUInt64)spec.tv_nsec;
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}
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#endif
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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FILETIME creation, exit, kernel, user;
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if (::GetProcessTimes(GetCurrentProcess(), &creation, &exit, &kernel, &user))
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{
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ULARGE_INTEGER ullUser;
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{
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ullUser.LowPart = user.dwLowDateTime;
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ullUser.HighPart = user.dwHighDateTime;
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}
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ULARGE_INTEGER ullKernel;
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{
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ullKernel.LowPart = kernel.dwLowDateTime;
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ullKernel.HighPart = kernel.dwHighDateTime;
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}
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return (ullUser.QuadPart + ullKernel.QuadPart) * 100ull;
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}
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#endif
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return HighResClockNS();
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}
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AUKN_SYM AuUInt64 ProcessClockMS()
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{
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return AuNSToMS<AuUInt64>(ProcessClockNS());
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}
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AUKN_SYM AuUInt64 ProcessClock()
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{
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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FILETIME creation, exit, kernel, user;
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if (::GetProcessTimes(GetCurrentProcess(), &creation, &exit, &kernel, &user))
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{
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ULARGE_INTEGER ullUser;
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{
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ullUser.LowPart = user.dwLowDateTime;
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ullUser.HighPart = user.dwHighDateTime;
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}
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ULARGE_INTEGER ullKernel;
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{
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ullKernel.LowPart = kernel.dwLowDateTime;
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ullKernel.HighPart = kernel.dwHighDateTime;
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}
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return ullUser.QuadPart + ullKernel.QuadPart;
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}
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#endif
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return ProcessClockNS() / (1000000000ull / ProcessClockJiffies());
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}
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AUKN_SYM AuUInt64 ProcessClockJiffies()
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{
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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return 1000000000ull / 100u;
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#endif
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static AuUInt64 frequency = 0;
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if (frequency != 0)
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{
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return frequency;
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}
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#if defined(AURORA_IS_POSIX_DERIVED)
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::timespec spec {};
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if (::clock_getres(CLOCK_PROCESS_CPUTIME_ID, &spec) == 0)
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{
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if (spec.tv_nsec && !spec.tv_sec)
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{
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return frequency = 1000000000ull / spec.tv_nsec;
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}
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else
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{
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SysUnreachable();
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return 0;
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}
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AUKN_SYM AuUInt64 fn ## Clock()
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{
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return 0;
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}
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AUKN_SYM AuUInt64 fn ## ClockJiffies()
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{
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return 0;
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}
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#endif
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return HighResClockJiffies();
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}
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ADD_CLOCK_FAMILY(Process, Process, (ullUser.QuadPart + ullKernel.QuadPart), CLOCK_PROCESS_CPUTIME_ID);
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ADD_CLOCK_FAMILY(ProcessKernel, Process, (ullKernel.QuadPart), 0);
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ADD_CLOCK_FAMILY(ProcessUser, Process, (ullUser.QuadPart), CLOCK_PROCESS_CPUTIME_ID);
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ADD_CLOCK_FAMILY(Thread, Thread, (ullUser.QuadPart + ullKernel.QuadPart), CLOCK_THREAD_CPUTIME_ID);
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ADD_CLOCK_FAMILY(ThreadKernel, Thread, (ullKernel.QuadPart), 0);
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ADD_CLOCK_FAMILY(ThreadUser, Thread, (ullUser.QuadPart), CLOCK_THREAD_CPUTIME_ID);
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AUKN_SYM AuInt64 ConvertAuroraToUnixMS(AuInt64 in)
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{
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@ -46,7 +46,11 @@ namespace Aurora::Time
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ADD_CLOCK(Steady, eSteady, SteadyClockJiffies, SteadyClockNS, SteadyClockMS);
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ADD_CLOCK(Wall, eWall, FILE_AND_USR_DIR_STEP + AuUInt64, CurrentClockNS, CurrentClockMS);
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ADD_CLOCK(Process, eProcessTime, ProcessClockJiffies, ProcessClockNS, ProcessClockMS);
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ADD_CLOCK(ProcessKernel, eProcessKernelTime, ProcessKernelClockJiffies, ProcessKernelClockNS, ProcessKernelClockMS);
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ADD_CLOCK(ProcessUser, eProcessUserTime, ProcessUserClockJiffies, ProcessUserClockNS, ProcessUserClockMS);
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ADD_CLOCK(Thread, eThreadTime, ThreadClockJiffies, ThreadClockNS, ThreadClockMS);
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ADD_CLOCK(ThreadKernel, eThreadKernelTime, ThreadKernelClockJiffies, ThreadKernelClockNS, ThreadKernelClockMS);
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ADD_CLOCK(ThreadUser, eThreadUserTime, ThreadUserClockJiffies, ThreadUserClockNS, ThreadUserClockMS);
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#undef FILE_AND_USR_DIR_STEP
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#undef ADD_CLOCK
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@ -57,12 +61,20 @@ namespace Aurora::Time
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{
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case EClock::eWall:
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return GetWallClock();
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case EClock::eProcessTime:
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return GetProcessClock();
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case EClock::eThreadTime:
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return GetProcessClock();
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case EClock::eSteady:
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return GetSteadyClock();
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case EClock::eProcessTime:
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return GetProcessClock();
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case EClock::eProcessUserTime:
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return GetProcessUserClock();
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case EClock::eProcessKernelTime:
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return GetProcessKernelClock();
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case EClock::eThreadTime:
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return GetThreadClock();
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case EClock::eThreadUserTime:
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return GetThreadUserClock();
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case EClock::eThreadKernelTime:
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return GetThreadKernelClock();
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default:
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SysPushErrorArg("Invalid clock");
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return {};
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