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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//-----------------------------------------------------------------------------
// JitPerf.h
// Internal interface for gathering JIT perfmormance stats. These stats are
// logged (or displayed) in two ways. If PERF_COUNTERS are enabled the
// perfmon etc. would display the jit stats. If ENABLE_PERF_LOG is enabled
// and PERF_OUTPUT env var is defined then the jit stats are displayed on the
// stdout. (The jit stats are outputted in a specific format to a file for
// automated perf tests.)
//
//-----------------------------------------------------------------------------
#ifndef __JITPERF_H__
#define __JITPERF_H__
#include "mscoree.h"
#include "clrinternal.h"
// ENABLE_JIT_PERF tag used to activate JIT specific profiling.
#define ENABLE_JIT_PERF
#if defined(ENABLE_JIT_PERF)
extern __int64 g_JitCycles;
extern size_t g_NonJitCycles;
extern CRITSEC_COOKIE g_csJit;
extern __int64 g_tlsJitCycles;
extern int g_fJitPerfOn;
extern size_t g_dwTlsx86CodeSize;
extern size_t g_TotalILCodeSize;
extern size_t g_Totalx86CodeSize;
extern size_t g_TotalMethodsJitted;
// Public interface to initialize jit stats data structs
void InitJitPerf(void);
// Public interface to deallocate datastruct and output the stats.
void DoneJitPerfStats(void);
// Start/StopNonJITPerf macros are used many times. Factor out the payload
// into helper method to reduce code size.
void StartNonJITPerfWorker(LARGE_INTEGER * pCycleStart);
void StopNonJITPerfWorker(LARGE_INTEGER * pCycleStart);
// Use the callee's stack frame (so START & STOP functions can share variables)
#define START_JIT_PERF() \
if (g_fJitPerfOn) { \
ClrFlsSetValue (TlsIdx_JitPerf, (LPVOID)0); \
g_dwTlsx86CodeSize = 0; \
ClrFlsSetValue (TlsIdx_JitX86Perf, (LPVOID)g_dwTlsx86CodeSize); \
}
#define STOP_JIT_PERF() \
if (g_fJitPerfOn) { \
size_t dwTlsNonJitCycles = (size_t)ClrFlsGetValue (TlsIdx_JitPerf); \
size_t dwx86CodeSize = (size_t)ClrFlsGetValue (TlsIdx_JitX86Perf); \
CRITSEC_Holder csh (g_csJit); \
g_JitCycles += static_cast<size_t>(CycleStop.QuadPart - CycleStart.QuadPart); \
g_NonJitCycles += dwTlsNonJitCycles; \
g_TotalILCodeSize += methodInfo.ILCodeSize; \
g_Totalx86CodeSize += dwx86CodeSize; \
g_TotalMethodsJitted ++; \
}
#define START_NON_JIT_PERF() \
LARGE_INTEGER CycleStart; \
if(g_fJitPerfOn) { \
StartNonJITPerfWorker(&CycleStart); \
}
#define STOP_NON_JIT_PERF() \
if(g_fJitPerfOn) { \
StopNonJITPerfWorker(&CycleStart); \
}
#define JIT_PERF_UPDATE_X86_CODE_SIZE(size) \
if(g_fJitPerfOn) { \
size_t dwx86CodeSize = (size_t)ClrFlsGetValue (TlsIdx_JitX86Perf); \
dwx86CodeSize += (size); \
ClrFlsSetValue (TlsIdx_JitX86Perf, (LPVOID)dwx86CodeSize); \
}
#else //ENABLE_JIT_PERF
#define START_JIT_PERF()
#define STOP_JIT_PERF()
#define START_NON_JIT_PERF()
#define STOP_NON_JIT_PERF()
#define JIT_PERF_UPDATE_X86_CODE_SIZE(size)
#endif //ENABLE_JIT_PERF
#endif //__JITPERF_H__
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