https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9658c6a2207bc52d5cdcab3a6a9ef3145bd6ec1b
commit 9658c6a2207bc52d5cdcab3a6a9ef3145bd6ec1b Author: Timo Kreuzer <[email protected]> AuthorDate: Sat Aug 27 16:09:41 2022 +0200 Commit: Timo Kreuzer <[email protected]> CommitDate: Thu Nov 24 21:17:58 2022 +0200 [NTOSKRNL] Print boot cycles on x64 just like on x86 --- ntoskrnl/include/internal/amd64/ke.h | 24 +++++++++++++++++++++++- ntoskrnl/ke/amd64/kiinit.c | 5 +++++ 2 files changed, 28 insertions(+), 1 deletion(-) diff --git a/ntoskrnl/include/internal/amd64/ke.h b/ntoskrnl/include/internal/amd64/ke.h index 97fa0f997b8..318b119d513 100644 --- a/ntoskrnl/include/internal/amd64/ke.h +++ b/ntoskrnl/include/internal/amd64/ke.h @@ -1,6 +1,10 @@ #ifndef __NTOSKRNL_INCLUDE_INTERNAL_AMD64_KE_H #define __NTOSKRNL_INCLUDE_INTERNAL_AMD64_KE_H +#ifdef __cplusplus +extern "C" { +#endif + #define X86_EFLAGS_TF 0x00000100 /* Trap flag */ #define X86_EFLAGS_IF 0x00000200 /* Interrupt Enable flag */ #define X86_EFLAGS_IOPL 0x00003000 /* I/O Privilege Level bits */ @@ -363,7 +367,21 @@ KiUserTrap(IN PKTRAP_FRAME TrapFrame) return !!(TrapFrame->SegCs & MODE_MASK); } -#define Ki386PerfEnd() +// +// PERF Code +// +FORCEINLINE +VOID +Ki386PerfEnd(VOID) +{ + extern ULONGLONG BootCyclesEnd, BootCycles; + BootCyclesEnd = __rdtsc(); + DbgPrint("Boot took %I64u cycles!\n", BootCyclesEnd - BootCycles); + DbgPrint("Interrupts: %u System Calls: %u Context Switches: %u\n", + KeGetCurrentPrcb()->InterruptCount, + KeGetCurrentPrcb()->KeSystemCalls, + KeGetContextSwitches(KeGetCurrentPrcb())); +} struct _KPCR; @@ -455,6 +473,10 @@ KiSetTrapContext( _In_ PCONTEXT Context, _In_ KPROCESSOR_MODE RequestorMode); +#ifdef __cplusplus +} // extern "C" +#endif + #endif /* __NTOSKRNL_INCLUDE_INTERNAL_AMD64_KE_H */ /* EOF */ diff --git a/ntoskrnl/ke/amd64/kiinit.c b/ntoskrnl/ke/amd64/kiinit.c index 310810475ea..65819290f46 100644 --- a/ntoskrnl/ke/amd64/kiinit.c +++ b/ntoskrnl/ke/amd64/kiinit.c @@ -34,6 +34,8 @@ UCHAR DECLSPEC_ALIGN(16) KiDoubleFaultStackData[KERNEL_STACK_SIZE] = {0}; ULONG_PTR P0BootStack = (ULONG_PTR)&P0BootStackData[KERNEL_STACK_SIZE]; ULONG_PTR KiDoubleFaultStack = (ULONG_PTR)&KiDoubleFaultStackData[KERNEL_STACK_SIZE]; +ULONGLONG BootCycles, BootCyclesEnd; + void KiInitializeSegments(); void KiSystemCallEntry64(); void KiSystemCallEntry32(); @@ -382,6 +384,9 @@ KiSystemStartup(IN PLOADER_PARAMETER_BLOCK LoaderBlock) ULONG64 InitialStack; PKIPCR Pcr; + /* Boot cycles timestamp */ + BootCycles = __rdtsc(); + /* HACK */ FrLdrDbgPrint = LoaderBlock->u.I386.CommonDataArea; //FrLdrDbgPrint("Hello from KiSystemStartup!!!\n");
