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use spin lock in auto growth allocator (#34910)
* use spin lock in auto growth allocator, test=develop * use pthread spin lock, test=develop * use lock guard, test=develop * use malloc spin lock, test=develop * use lock_guard, test=develop
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// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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#pragma once | ||
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#include "paddle/fluid/memory/allocation/spin_lock_c.h" | ||
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namespace paddle { | ||
namespace memory { | ||
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class SpinLock { | ||
public: | ||
SpinLock() { INITIAL_LOCK(&mlock_); } | ||
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void lock() { ACQUIRE_LOCK(&mlock_); } | ||
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void unlock() { RELEASE_LOCK(&mlock_); } | ||
DISABLE_COPY_AND_ASSIGN(SpinLock); | ||
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private: | ||
MLOCK_T mlock_; | ||
}; | ||
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} // namespace memory | ||
} // namespace paddle |
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// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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/* | ||
the spinlock implementation is borrowed from Doug Lea's malloc, released to the | ||
public domain, as explained at | ||
http://creativecommons.org/licenses/publicdomain. Send questions, | ||
comments, complaints, performance data, etc to dl@cs.oswego.edu | ||
*/ | ||
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#pragma once | ||
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#ifndef WIN32 | ||
#include <pthread.h> | ||
#if defined(__SVR4) && defined(__sun) /* solaris */ | ||
#include <thread.h> | ||
#endif /* solaris */ | ||
#else | ||
#ifndef _M_AMD64 | ||
/* These are already defined on AMD64 builds */ | ||
#ifdef __cplusplus | ||
extern "C" { | ||
#endif /* __cplusplus */ | ||
LONG __cdecl _InterlockedCompareExchange(LONG volatile* Dest, LONG Exchange, | ||
LONG Comp); | ||
LONG __cdecl _InterlockedExchange(LONG volatile* Target, LONG Value); | ||
#ifdef __cplusplus | ||
} | ||
#endif /* __cplusplus */ | ||
#endif /* _M_AMD64 */ | ||
#pragma intrinsic(_InterlockedCompareExchange) | ||
#pragma intrinsic(_InterlockedExchange) | ||
#define interlockedcompareexchange _InterlockedCompareExchange | ||
#define interlockedexchange _InterlockedExchange | ||
#endif /* Win32 */ | ||
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#ifndef FORCEINLINE | ||
#if defined(__GNUC__) | ||
#define FORCEINLINE __inline __attribute__((always_inline)) | ||
#elif defined(_MSC_VER) | ||
#define FORCEINLINE __forceinline | ||
#endif | ||
#endif | ||
#ifndef NOINLINE | ||
#if defined(__GNUC__) | ||
#define NOINLINE __attribute__((noinline)) | ||
#elif defined(_MSC_VER) | ||
#define NOINLINE __declspec(noinline) | ||
#else | ||
#define NOINLINE | ||
#endif | ||
#endif | ||
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#ifdef __cplusplus | ||
extern "C" { | ||
#ifndef FORCEINLINE | ||
#define FORCEINLINE inline | ||
#endif | ||
#endif /* __cplusplus */ | ||
#ifndef FORCEINLINE | ||
#define FORCEINLINE | ||
#endif | ||
#ifdef __cplusplus | ||
}; /* end of extern "C" */ | ||
#endif /* __cplusplus */ | ||
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#ifndef WIN32 | ||
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/* Custom pthread-style spin locks on x86 and x64 for gcc */ | ||
struct pthread_mlock_t { | ||
volatile unsigned int l; | ||
unsigned int c; | ||
pthread_t threadid; | ||
}; | ||
#define MLOCK_T struct pthread_mlock_t | ||
#define CURRENT_THREAD pthread_self() | ||
#define INITIAL_LOCK(sl) ((sl)->threadid = 0, (sl)->l = (sl)->c = 0, 0) | ||
#define ACQUIRE_LOCK(sl) pthread_acquire_lock(sl) | ||
#define RELEASE_LOCK(sl) pthread_release_lock(sl) | ||
#define TRY_LOCK(sl) pthread_try_lock(sl) | ||
#define SPINS_PER_YIELD 63 | ||
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// static MLOCK_T malloc_global_mutex = { 0, 0, 0}; | ||
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static FORCEINLINE int pthread_acquire_lock(MLOCK_T* sl) { | ||
int spins = 0; | ||
volatile unsigned int* lp = &sl->l; | ||
for (;;) { | ||
if (*lp != 0) { | ||
if (sl->threadid == CURRENT_THREAD) { | ||
++sl->c; | ||
return 0; | ||
} | ||
} else { | ||
/* place args to cmpxchgl in locals to evade oddities in some gccs */ | ||
int cmp = 0; | ||
int val = 1; | ||
int ret; | ||
__asm__ __volatile__("lock; cmpxchgl %1, %2" | ||
: "=a"(ret) | ||
: "r"(val), "m"(*(lp)), "0"(cmp) | ||
: "memory", "cc"); | ||
if (!ret) { | ||
assert(!sl->threadid); | ||
sl->threadid = CURRENT_THREAD; | ||
sl->c = 1; | ||
return 0; | ||
} | ||
} | ||
if ((++spins & SPINS_PER_YIELD) == 0) { | ||
#if defined(__SVR4) && defined(__sun) /* solaris */ | ||
thr_yield(); | ||
#else | ||
#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) | ||
sched_yield(); | ||
#else /* no-op yield on unknown systems */ | ||
; // NOLINT | ||
#endif /* __linux__ || __FreeBSD__ || __APPLE__ */ | ||
#endif /* solaris */ | ||
} | ||
} | ||
} | ||
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static FORCEINLINE void pthread_release_lock(MLOCK_T* sl) { | ||
volatile unsigned int* lp = &sl->l; | ||
assert(*lp != 0); | ||
assert(sl->threadid == CURRENT_THREAD); | ||
if (--sl->c == 0) { | ||
sl->threadid = 0; | ||
int prev = 0; | ||
int ret; | ||
__asm__ __volatile__("lock; xchgl %0, %1" | ||
: "=r"(ret) | ||
: "m"(*(lp)), "0"(prev) | ||
: "memory"); | ||
} | ||
} | ||
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static FORCEINLINE int pthread_try_lock(MLOCK_T* sl) { | ||
volatile unsigned int* lp = &sl->l; | ||
if (*lp != 0) { | ||
if (sl->threadid == CURRENT_THREAD) { | ||
++sl->c; | ||
return 1; | ||
} | ||
} else { | ||
int cmp = 0; | ||
int val = 1; | ||
int ret; | ||
__asm__ __volatile__("lock; cmpxchgl %1, %2" | ||
: "=a"(ret) | ||
: "r"(val), "m"(*(lp)), "0"(cmp) | ||
: "memory", "cc"); | ||
if (!ret) { | ||
assert(!sl->threadid); | ||
sl->threadid = CURRENT_THREAD; | ||
sl->c = 1; | ||
return 1; | ||
} | ||
} | ||
return 0; | ||
} | ||
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#else /* WIN32 */ | ||
/* Custom win32-style spin locks on x86 and x64 for MSC */ | ||
struct win32_mlock_t { | ||
volatile long l; // NOLINT | ||
unsigned int c; | ||
long threadid; // NOLINT | ||
}; | ||
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#define MLOCK_T struct win32_mlock_t | ||
#define CURRENT_THREAD GetCurrentThreadId() | ||
#define INITIAL_LOCK(sl) ((sl)->threadid = 0, (sl)->l = (sl)->c = 0, 0) | ||
#define ACQUIRE_LOCK(sl) win32_acquire_lock(sl) | ||
#define RELEASE_LOCK(sl) win32_release_lock(sl) | ||
#define TRY_LOCK(sl) win32_try_lock(sl) | ||
#define SPINS_PER_YIELD 63 | ||
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// static MLOCK_T malloc_global_mutex = { 0, 0, 0}; | ||
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static FORCEINLINE int win32_acquire_lock(MLOCK_T *sl) { | ||
int spins = 0; | ||
for (;;) { | ||
if (sl->l != 0) { | ||
if (sl->threadid == CURRENT_THREAD) { | ||
++sl->c; | ||
return 0; | ||
} | ||
} else { | ||
if (!interlockedexchange(&sl->l, 1)) { | ||
assert(!sl->threadid); | ||
sl->threadid = CURRENT_THREAD; | ||
sl->c = 1; | ||
return 0; | ||
} | ||
} | ||
if ((++spins & SPINS_PER_YIELD) == 0) SleepEx(0, FALSE); | ||
} | ||
} | ||
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static FORCEINLINE void win32_release_lock(MLOCK_T *sl) { | ||
assert(sl->threadid == CURRENT_THREAD); | ||
assert(sl->l != 0); | ||
if (--sl->c == 0) { | ||
sl->threadid = 0; | ||
interlockedexchange(&sl->l, 0); | ||
} | ||
} | ||
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static FORCEINLINE int win32_try_lock(MLOCK_T *sl) { | ||
if (sl->l != 0) { | ||
if (sl->threadid == CURRENT_THREAD) { | ||
++sl->c; | ||
return 1; | ||
} | ||
} else { | ||
if (!interlockedexchange(&sl->l, 1)) { | ||
assert(!sl->threadid); | ||
sl->threadid = CURRENT_THREAD; | ||
sl->c = 1; | ||
return 1; | ||
} | ||
} | ||
return 0; | ||
} | ||
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#endif /* WIN32 */ |