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8.2.8
src/config.h
361 строка
10 KB
Yuan Wang
Improve multithreaded performance with memory prefetching (#14017)
05 июн 2025, 03:57
Не верифицирован
05 июн 2025, 03:57
70a079d
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/* * Copyright (c) 2009-Present, Redis Ltd. * All rights reserved. * * Licensed under your choice of (a) the Redis Source Available License 2.0 * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the * GNU Affero General Public License v3 (AGPLv3). */ #ifndef __CONFIG_H #define __CONFIG_H #ifdef __APPLE__ #include <fcntl.h> // for fcntl(fd, F_FULLFSYNC) #include <AvailabilityMacros.h> #endif #ifdef __linux__ #include <features.h> #include <fcntl.h> #endif #if defined(__APPLE__) && defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1060 #define MAC_OS_10_6_DETECTED #endif /* Define redis_fstat to fstat or fstat64() */ #if defined(__APPLE__) && !defined(MAC_OS_10_6_DETECTED) #define redis_fstat fstat64 #define redis_stat stat64 #else #define redis_fstat fstat #define redis_stat stat #endif #ifndef CACHE_LINE_SIZE #if defined(__aarch64__) && defined(__APPLE__) #define CACHE_LINE_SIZE 128 #else #define CACHE_LINE_SIZE 64 #endif #endif /* Test for proc filesystem */ #ifdef __linux__ #define HAVE_PROC_STAT 1 #define HAVE_PROC_MAPS 1 #define HAVE_PROC_SMAPS 1 #define HAVE_PROC_SOMAXCONN 1 #define HAVE_PROC_OOM_SCORE_ADJ 1 #define HAVE_EVENT_FD 1 #endif /* Test for task_info() */ #if defined(__APPLE__) #define HAVE_TASKINFO 1 #endif /* Test for somaxconn check */ #if defined(__APPLE__) || defined(__FreeBSD__) #define HAVE_SYSCTL_KIPC_SOMAXCONN 1 #elif defined(__OpenBSD__) #define HAVE_SYSCTL_KERN_SOMAXCONN 1 #endif /* Test for backtrace() */ #if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__)) || \ defined(__FreeBSD__) || ((defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun)) && defined(USE_BACKTRACE))\ || defined(__DragonFly__) || (defined(__UCLIBC__) && defined(__UCLIBC_HAS_BACKTRACE__)) #define HAVE_BACKTRACE 1 #endif /* MSG_NOSIGNAL. */ #ifdef __linux__ #define HAVE_MSG_NOSIGNAL 1 #if defined(SO_MARK) #define HAVE_SOCKOPTMARKID 1 #define SOCKOPTMARKID SO_MARK #endif #endif /* Test for polling API */ #ifdef __linux__ #define HAVE_EPOLL 1 #endif /* Test for accept4() */ #if defined(__linux__) || defined(OpenBSD5_7) || \ (__FreeBSD__ >= 10 || __FreeBSD_version >= 1000000) || \ (defined(NetBSD8_0) || __NetBSD_Version__ >= 800000000) #define HAVE_ACCEPT4 1 #endif #if (defined(__APPLE__) && defined(MAC_OS_10_6_DETECTED)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__) #define HAVE_KQUEUE 1 #endif #ifdef __sun #include <sys/feature_tests.h> #ifdef _DTRACE_VERSION #define HAVE_EVPORT 1 #define HAVE_PSINFO 1 #endif #endif /* Test for __builtin_prefetch() * Supported in LLVM since 2.9: https://releases.llvm.org/2.9/docs/ReleaseNotes.html * Supported in GCC since 3.1 but we use 4.8 given it's too old: https://gcc.gnu.org/gcc-3.1/changes.html. */ #if defined(__clang__) && (__clang_major__ > 2 || (__clang_major__ == 2 && __clang_minor__ >= 9)) #define HAS_BUILTIN_PREFETCH 1 #elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) #define HAS_BUILTIN_PREFETCH 1 #else #define HAS_BUILTIN_PREFETCH 0 #endif #if HAS_BUILTIN_PREFETCH #define redis_prefetch_read(addr) __builtin_prefetch(addr, 0, 3) /* Read with high locality */ #define redis_prefetch_write(addr) __builtin_prefetch(addr, 1, 3) /* Write with high locality */ #else #define redis_prefetch_read(addr) ((void)(addr)) /* No-op if unsupported */ #define redis_prefetch_write(addr) ((void)(addr)) /* No-op if unsupported */ #endif /* Define redis_fsync to fdatasync() in Linux and fsync() for all the rest */ #if defined(__linux__) #define redis_fsync(fd) fdatasync(fd) #elif defined(__APPLE__) #define redis_fsync(fd) fcntl(fd, F_FULLFSYNC) #else #define redis_fsync(fd) fsync(fd) #endif #if defined(__FreeBSD__) #if defined(SO_USER_COOKIE) #define HAVE_SOCKOPTMARKID 1 #define SOCKOPTMARKID SO_USER_COOKIE #endif #endif #if defined(__OpenBSD__) #if defined(SO_RTABLE) #define HAVE_SOCKOPTMARKID 1 #define SOCKOPTMARKID SO_RTABLE #endif #endif #if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) #define redis_unreachable __builtin_unreachable #else #define redis_unreachable abort #endif #if __GNUC__ >= 3 #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) #else #define likely(x) (x) #define unlikely(x) (x) #endif #if defined(__has_attribute) #if __has_attribute(no_sanitize) #define REDIS_NO_SANITIZE(sanitizer) __attribute__((no_sanitize(sanitizer))) #endif #endif #if !defined(REDIS_NO_SANITIZE) #define REDIS_NO_SANITIZE(sanitizer) #endif #if defined(__clang__) #define REDIS_NO_SANITIZE_MSAN(sanitizer) REDIS_NO_SANITIZE(sanitizer) #else #define REDIS_NO_SANITIZE_MSAN(sanitizer) #endif /* Define rdb_fsync_range to sync_file_range() on Linux, otherwise we use * the plain fsync() call. */ #if (defined(__linux__) && defined(SYNC_FILE_RANGE_WAIT_BEFORE)) #define HAVE_SYNC_FILE_RANGE 1 #define rdb_fsync_range(fd,off,size) sync_file_range(fd,off,size,SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE) #elif defined(__APPLE__) #define rdb_fsync_range(fd,off,size) fcntl(fd, F_FULLFSYNC) #else #define rdb_fsync_range(fd,off,size) fsync(fd) #endif /* Check if we can use setproctitle(). * BSD systems have support for it, we provide an implementation for * Linux and osx. */ #if (defined __NetBSD__ || defined __FreeBSD__ || defined __OpenBSD__) #define USE_SETPROCTITLE #endif #if defined(__HAIKU__) #define ESOCKTNOSUPPORT 0 #endif #if (defined __linux || defined __APPLE__) #define USE_SETPROCTITLE #define INIT_SETPROCTITLE_REPLACEMENT void spt_init(int argc, char *argv[]); void setproctitle(const char *fmt, ...); #endif /* Byte ordering detection */ #include <sys/types.h> /* This will likely define BYTE_ORDER */ #ifndef BYTE_ORDER #if (BSD >= 199103) # include <machine/endian.h> #else #if defined(linux) || defined(__linux__) # include <endian.h> #else #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */ #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/ #if defined(__i386__) || defined(__x86_64__) || defined(__amd64__) || \ defined(vax) || defined(ns32000) || defined(sun386) || \ defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \ defined(__alpha__) || defined(__alpha) #define BYTE_ORDER LITTLE_ENDIAN #endif #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \ defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \ defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\ defined(apollo) || defined(__convex__) || defined(_CRAY) || \ defined(__hppa) || defined(__hp9000) || \ defined(__hp9000s300) || defined(__hp9000s700) || \ defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc) #define BYTE_ORDER BIG_ENDIAN #endif #endif /* linux */ #endif /* BSD */ #endif /* BYTE_ORDER */ /* Sometimes after including an OS-specific header that defines the * endianness we end with __BYTE_ORDER but not with BYTE_ORDER that is what * the Redis code uses. In this case let's define everything without the * underscores. */ #ifndef BYTE_ORDER #ifdef __BYTE_ORDER #if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN) #ifndef LITTLE_ENDIAN #define LITTLE_ENDIAN __LITTLE_ENDIAN #endif #ifndef BIG_ENDIAN #define BIG_ENDIAN __BIG_ENDIAN #endif #if (__BYTE_ORDER == __LITTLE_ENDIAN) #define BYTE_ORDER LITTLE_ENDIAN #else #define BYTE_ORDER BIG_ENDIAN #endif #endif #endif #endif #if !defined(BYTE_ORDER) || \ (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN) /* you must determine what the correct bit order is for * your compiler - the next line is an intentional error * which will force your compiles to bomb until you fix * the above macros. */ #error "Undefined or invalid BYTE_ORDER" #endif #if (__i386 || __amd64 || __powerpc__) && __GNUC__ #define GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) #if defined(__clang__) #define HAVE_ATOMIC #endif #if (defined(__GLIBC__) && defined(__GLIBC_PREREQ)) #if (GNUC_VERSION >= 40100 && __GLIBC_PREREQ(2, 6)) #define HAVE_ATOMIC #endif #endif #endif /* Make sure we can test for ARM just checking for __arm__, since sometimes * __arm is defined but __arm__ is not. */ #if defined(__arm) && !defined(__arm__) #define __arm__ #endif #if defined (__aarch64__) && !defined(__arm64__) #define __arm64__ #endif /* Make sure we can test for SPARC just checking for __sparc__. */ #if defined(__sparc) && !defined(__sparc__) #define __sparc__ #endif #if defined(__sparc__) || defined(__arm__) #define USE_ALIGNED_ACCESS #endif /* Define for redis_set_thread_title */ #ifdef __linux__ #define redis_set_thread_title(name) pthread_setname_np(pthread_self(), name) #else #if (defined __FreeBSD__ || defined __OpenBSD__) #include <pthread_np.h> #define redis_set_thread_title(name) pthread_set_name_np(pthread_self(), name) #elif defined __NetBSD__ #include <pthread.h> #define redis_set_thread_title(name) pthread_setname_np(pthread_self(), "%s", name) #elif defined __HAIKU__ #include <kernel/OS.h> #define redis_set_thread_title(name) rename_thread(find_thread(0), name) #else #if (defined __APPLE__ && defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070) int pthread_setname_np(const char *name); #include <pthread.h> #define redis_set_thread_title(name) pthread_setname_np(name) #else #define redis_set_thread_title(name) #endif #endif #endif /* Check if we can use setcpuaffinity(). */ #if (defined __linux || defined __NetBSD__ || defined __FreeBSD__ || defined __DragonFly__) #define USE_SETCPUAFFINITY void setcpuaffinity(const char *cpulist); #endif /* Test for posix_fadvise() */ #if defined(__linux__) || __FreeBSD__ >= 10 #define HAVE_FADVISE #endif #if defined(__x86_64__) && ((defined(__GNUC__) && __GNUC__ > 5) || (defined(__clang__))) #if defined(__has_attribute) && __has_attribute(target) #define HAVE_POPCNT #define ATTRIBUTE_TARGET_POPCNT __attribute__((target("popcnt"))) #else #define ATTRIBUTE_TARGET_POPCNT #endif #else #define ATTRIBUTE_TARGET_POPCNT #endif /* Check if we can compile AVX2 code */ #if defined (__x86_64__) && ((defined(__GNUC__) && __GNUC__ >= 5) || (defined(__clang__) && __clang_major__ >= 4)) #if defined(__has_attribute) && __has_attribute(target) #define HAVE_AVX2 #endif #endif #if defined (HAVE_AVX2) #define ATTRIBUTE_TARGET_AVX2 __attribute__((target("avx2"))) #else #define ATTRIBUTE_TARGET_AVX2 #endif #endif