mirror of
https://github.com/facebook/rocksdb.git
synced 2024-12-03 05:54:17 +00:00
0a019d74a0
Summary: Currently, when we insert something into block cache, we say that the block cache capacity decreased by the size of the block. However, size of the block might be less than the actual memory used by this object. For example, 4.5KB block will actually use 8KB of memory. So even if we configure block cache to 10GB, our actually memory usage of block cache will be 20GB! This problem showed up a lot in testing and just recently also showed up in MongoRocks production where we were using 30GB more memory than expected. This diff will fix the problem. Instead of counting the block size, we will count memory used by the block. That way, a block cache configured to be 10GB will actually use only 10GB of memory. I'm using non-portable function and I couldn't find info on portability on Google. However, it seems to work on Linux, which will cover majority of our use-cases. Test Plan: 1. fill up mongo instance with 80GB of data 2. restart mongo with block cache size configured to 10GB 3. do a table scan in mongo 4. memory usage before the diff: 12GB. memory usage after the diff: 10.5GB Reviewers: sdong, MarkCallaghan, rven, yhchiang Reviewed By: yhchiang Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D40635
380 lines
13 KiB
Bash
Executable file
380 lines
13 KiB
Bash
Executable file
#!/bin/sh
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#
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# Detects OS we're compiling on and outputs a file specified by the first
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# argument, which in turn gets read while processing Makefile.
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#
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# The output will set the following variables:
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# CC C Compiler path
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# CXX C++ Compiler path
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# PLATFORM_LDFLAGS Linker flags
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# JAVA_LDFLAGS Linker flags for RocksDBJava
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# PLATFORM_SHARED_EXT Extension for shared libraries
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# PLATFORM_SHARED_LDFLAGS Flags for building shared library
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# PLATFORM_SHARED_CFLAGS Flags for compiling objects for shared library
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# PLATFORM_CCFLAGS C compiler flags
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# PLATFORM_CXXFLAGS C++ compiler flags. Will contain:
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# PLATFORM_SHARED_VERSIONED Set to 'true' if platform supports versioned
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# shared libraries, empty otherwise.
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#
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# The PLATFORM_CCFLAGS and PLATFORM_CXXFLAGS might include the following:
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#
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# -DLEVELDB_PLATFORM_POSIX if cstdatomic is present
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# -DLEVELDB_PLATFORM_NOATOMIC if it is not
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# -DSNAPPY if the Snappy library is present
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# -DLZ4 if the LZ4 library is present
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# -DNUMA if the NUMA library is present
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#
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# Using gflags in rocksdb:
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# Our project depends on gflags, which requires users to take some extra steps
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# before they can compile the whole repository:
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# 1. Install gflags. You may download it from here:
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# https://code.google.com/p/gflags/
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# 2. Once install, add the include path/lib path for gflags to CPATH and
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# LIBRARY_PATH respectively. If installed with default mode, the
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# lib and include path will be /usr/local/lib and /usr/local/include
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# Mac user can do this by having brew installed and running brew install gflags
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OUTPUT=$1
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if test -z "$OUTPUT"; then
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echo "usage: $0 <output-filename>" >&2
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exit 1
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fi
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# we depend on C++11
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PLATFORM_CXXFLAGS="-std=c++11"
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# we currently depend on POSIX platform
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COMMON_FLAGS="-DROCKSDB_PLATFORM_POSIX"
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# Default to fbcode gcc on internal fb machines
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if [ -z "$ROCKSDB_NO_FBCODE" -a -d /mnt/gvfs/third-party ]; then
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FBCODE_BUILD="true"
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# If we're compiling with TSAN we need pic build
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PIC_BUILD=$COMPILE_WITH_TSAN
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if [ -z "$ROCKSDB_FBCODE_BUILD_WITH_481" ]; then
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source "$PWD/build_tools/fbcode_config.sh"
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else
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# we need this to build with MySQL. Don't use for other purposes.
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source "$PWD/build_tools/fbcode_config4.8.1.sh"
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fi
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fi
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# Delete existing output, if it exists
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rm -f "$OUTPUT"
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touch "$OUTPUT"
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if test -z "$CC"; then
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CC=cc
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fi
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if test -z "$CXX"; then
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CXX=g++
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fi
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# Detect OS
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if test -z "$TARGET_OS"; then
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TARGET_OS=`uname -s`
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fi
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if test -z "$TARGET_ARCHITECTURE"; then
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TARGET_ARCHITECTURE=`uname -m`
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fi
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if test -z "$CLANG_SCAN_BUILD"; then
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CLANG_SCAN_BUILD=scan-build
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fi
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if test -z "$CLANG_ANALYZER"; then
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CLANG_ANALYZER=$(which clang++ 2> /dev/null)
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fi
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COMMON_FLAGS="$COMMON_FLAGS ${CFLAGS}"
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CROSS_COMPILE=
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PLATFORM_CCFLAGS=
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS"
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PLATFORM_SHARED_EXT="so"
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PLATFORM_SHARED_LDFLAGS="-Wl,--no-as-needed -shared -Wl,-soname -Wl,"
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PLATFORM_SHARED_CFLAGS="-fPIC"
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PLATFORM_SHARED_VERSIONED=true
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# generic port files (working on all platform by #ifdef) go directly in /port
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GENERIC_PORT_FILES=`cd "$ROCKSDB_ROOT"; find port -name '*.cc' | tr "\n" " "`
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# On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp
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case "$TARGET_OS" in
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Darwin)
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PLATFORM=OS_MACOSX
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COMMON_FLAGS="$COMMON_FLAGS -DOS_MACOSX"
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PLATFORM_SHARED_EXT=dylib
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PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
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# PORT_FILES=port/darwin/darwin_specific.cc
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;;
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IOS)
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PLATFORM=IOS
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COMMON_FLAGS="$COMMON_FLAGS -DOS_MACOSX -DIOS_CROSS_COMPILE -DROCKSDB_LITE"
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PLATFORM_SHARED_EXT=dylib
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PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
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CROSS_COMPILE=true
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PLATFORM_SHARED_VERSIONED=
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;;
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Linux)
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PLATFORM=OS_LINUX
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COMMON_FLAGS="$COMMON_FLAGS -DOS_LINUX"
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if [ -z "$USE_CLANG" ]; then
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
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fi
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
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# PORT_FILES=port/linux/linux_specific.cc
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;;
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SunOS)
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PLATFORM=OS_SOLARIS
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
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# PORT_FILES=port/sunos/sunos_specific.cc
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;;
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FreeBSD)
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PLATFORM=OS_FREEBSD
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
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# PORT_FILES=port/freebsd/freebsd_specific.cc
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;;
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NetBSD)
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PLATFORM=OS_NETBSD
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lgcc_s"
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# PORT_FILES=port/netbsd/netbsd_specific.cc
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;;
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OpenBSD)
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PLATFORM=OS_OPENBSD
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -pthread"
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# PORT_FILES=port/openbsd/openbsd_specific.cc
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;;
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DragonFly)
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PLATFORM=OS_DRAGONFLYBSD
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
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# PORT_FILES=port/dragonfly/dragonfly_specific.cc
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;;
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Cygwin)
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PLATFORM=CYGWIN
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PLATFORM_SHARED_CFLAGS=""
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PLATFORM_CXXFLAGS="-std=gnu++11"
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COMMON_FLAGS="$COMMON_FLAGS -DCYGWIN"
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if [ -z "$USE_CLANG" ]; then
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
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fi
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
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# PORT_FILES=port/linux/linux_specific.cc
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;;
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OS_ANDROID_CROSSCOMPILE)
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PLATFORM=OS_ANDROID
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COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS " # All pthread features are in the Android C library
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# PORT_FILES=port/android/android.cc
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CROSS_COMPILE=true
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;;
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*)
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echo "Unknown platform!" >&2
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exit 1
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esac
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PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS ${CXXFLAGS}"
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JAVA_LDFLAGS="$PLATFORM_LDFLAGS"
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if [ "$CROSS_COMPILE" = "true" -o "$FBCODE_BUILD" = "true" ]; then
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# Cross-compiling; do not try any compilation tests.
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# Also don't need any compilation tests if compiling on fbcode
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true
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else
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# Test whether fallocate is available
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$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <fcntl.h>
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#include <linux/falloc.h>
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int main() {
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int fd = open("/dev/null", 0);
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fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, 0, 1024);
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}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_FALLOCATE_PRESENT"
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fi
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# Test whether Snappy library is installed
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# http://code.google.com/p/snappy/
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$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <snappy.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DSNAPPY"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lsnappy"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -lsnappy"
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fi
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# Test whether gflags library is installed
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# http://code.google.com/p/gflags/
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# check if the namespace is gflags
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$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
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#include <gflags/gflags.h>
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using namespace gflags;
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=gflags"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
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else
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# check if namespace is google
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$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
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#include <gflags/gflags.h>
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using namespace google;
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=google"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
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fi
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fi
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# Test whether zlib library is installed
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$CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <zlib.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DZLIB"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lz"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -lz"
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fi
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# Test whether bzip library is installed
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$CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <bzlib.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DBZIP2"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lbz2"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -lbz2"
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fi
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# Test whether lz4 library is installed
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$CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <lz4.h>
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#include <lz4hc.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DLZ4"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -llz4"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -llz4"
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fi
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# Test whether numa is available
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$CXX $CFLAGS -x c++ - -o /dev/null -lnuma 2>/dev/null <<EOF
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#include <numa.h>
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#inlcude <numaif.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DNUMA"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lnuma"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -lnuma"
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fi
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# Test whether jemalloc is available
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if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null -ljemalloc \
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2>/dev/null; then
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ljemalloc"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -ljemalloc"
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else
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# jemalloc is not available. Let's try tcmalloc
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if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null \
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-ltcmalloc 2>/dev/null; then
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
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JAVA_LDFLAGS="$JAVA_LDFLAGS -ltcmalloc"
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fi
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fi
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# Test whether malloc_usable_size is available
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$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <malloc.h>
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int main() {
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size_t res = malloc_usable_size(0);
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return 0;
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}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_MALLOC_USABLE_SIZE"
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fi
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fi
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# TODO(tec): Fix -Wshorten-64-to-32 errors on FreeBSD and enable the warning.
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# -Wshorten-64-to-32 breaks compilation on FreeBSD i386
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if ! [ "$TARGET_OS" = FreeBSD -a "$TARGET_ARCHITECTURE" = i386 ]; then
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# Test whether -Wshorten-64-to-32 is available
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$CXX $CFLAGS -x c++ - -o /dev/null -Wshorten-64-to-32 2>/dev/null <<EOF
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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COMMON_FLAGS="$COMMON_FLAGS -Wshorten-64-to-32"
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fi
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fi
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# shall we use HDFS?
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if test "$USE_HDFS"; then
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if test -z "$JAVA_HOME"; then
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echo "JAVA_HOME has to be set for HDFS usage."
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exit 1
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fi
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HDFS_CCFLAGS="$HDFS_CCFLAGS -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -DUSE_HDFS"
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HDFS_LDFLAGS="$HDFS_LDFLAGS -lhdfs -L$JAVA_HOME/jre/lib/amd64"
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HDFS_LDFLAGS="$HDFS_LDFLAGS -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib"
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HDFS_LDFLAGS="$HDFS_LDFLAGS -ldl -lverify -ljava -ljvm"
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COMMON_FLAGS="$COMMON_FLAGS $HDFS_CCFLAGS"
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PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $HDFS_LDFLAGS"
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JAVA_LDFLAGS="$JAVA_LDFLAGS $HDFS_LDFLAGS"
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fi
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if [ "$TARGET_OS" = FreeBSD -a "$TARGET_ARCHITECTURE" = i386 ]; then
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# Intel SSE instructions breaks compilation on FreeBSD i386
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unset USE_SSE
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fi
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if test "$USE_SSE"; then
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# if Intel SSE instruction set is supported, set USE_SSE=1
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COMMON_FLAGS="$COMMON_FLAGS -msse -msse4.2 "
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elif test -z "$PORTABLE"; then
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COMMON_FLAGS="$COMMON_FLAGS -march=native "
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fi
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PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
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PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"
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VALGRIND_VER="$VALGRIND_VER"
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ROCKSDB_MAJOR=`build_tools/version.sh major`
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ROCKSDB_MINOR=`build_tools/version.sh minor`
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ROCKSDB_PATCH=`build_tools/version.sh patch`
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echo "CC=$CC" >> "$OUTPUT"
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echo "CXX=$CXX" >> "$OUTPUT"
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echo "PLATFORM=$PLATFORM" >> "$OUTPUT"
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echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> "$OUTPUT"
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echo "JAVA_LDFLAGS=$JAVA_LDFLAGS" >> "$OUTPUT"
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echo "VALGRIND_VER=$VALGRIND_VER" >> "$OUTPUT"
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echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> "$OUTPUT"
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echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> "$OUTPUT"
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echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> "$OUTPUT"
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echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> "$OUTPUT"
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echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> "$OUTPUT"
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echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> "$OUTPUT"
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echo "EXEC_LDFLAGS=$EXEC_LDFLAGS" >> "$OUTPUT"
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echo "JEMALLOC_INCLUDE=$JEMALLOC_INCLUDE" >> "$OUTPUT"
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echo "JEMALLOC_LIB=$JEMALLOC_LIB" >> "$OUTPUT"
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echo "ROCKSDB_MAJOR=$ROCKSDB_MAJOR" >> "$OUTPUT"
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echo "ROCKSDB_MINOR=$ROCKSDB_MINOR" >> "$OUTPUT"
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echo "ROCKSDB_PATCH=$ROCKSDB_PATCH" >> "$OUTPUT"
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echo "CLANG_SCAN_BUILD=$CLANG_SCAN_BUILD" >> "$OUTPUT"
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echo "CLANG_ANALYZER=$CLANG_ANALYZER" >> "$OUTPUT"
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