f2f4c8072f
Summary: The pupose of this diff is to expose per user-call level precise timing of block read, so that we can answer questions like: a Get() costs me 100ms, is that somehow related to loading blocks from file system, or sth else? We will answer that with EXACTLY how many blocks have been read, how much time was spent on transfering the bytes from os, how much time was spent on checksum verification and how much time was spent on block decompression, just for that one Get. A nano second stopwatch was introduced to track time with higher precision. The cost/precision of the stopwatch is also measured in unit-test. On my dev box, retrieving one time instance costs about 30ns, on average. The deviation of timing results is good enough to track 100ns-1us level events. And the overhead could be safely ignored for 100us level events (10000 instances/s), for example, a viewstate thrift call. Test Plan: perf_context_test, also testing with viewstate shadow traffic. Reviewers: dhruba Reviewed By: dhruba CC: leveldb, xjin Differential Revision: https://reviews.facebook.net/D12351
259 lines
8.9 KiB
Bash
Executable File
259 lines
8.9 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Detects OS we're compiling on and outputs a file specified by the first
|
|
# argument, which in turn gets read while processing Makefile.
|
|
#
|
|
# The output will set the following variables:
|
|
# CC C Compiler path
|
|
# CXX C++ Compiler path
|
|
# PLATFORM_LDFLAGS Linker flags
|
|
# PLATFORM_SHARED_EXT Extension for shared libraries
|
|
# PLATFORM_SHARED_LDFLAGS Flags for building shared library
|
|
# PLATFORM_SHARED_CFLAGS Flags for compiling objects for shared library
|
|
# PLATFORM_CCFLAGS C compiler flags
|
|
# PLATFORM_CXXFLAGS C++ compiler flags. Will contain:
|
|
# PLATFORM_SHARED_VERSIONED Set to 'true' if platform supports versioned
|
|
# shared libraries, empty otherwise.
|
|
#
|
|
# The PLATFORM_CCFLAGS and PLATFORM_CXXFLAGS might include the following:
|
|
#
|
|
# -DLEVELDB_PLATFORM_POSIX if cstdatomic is present
|
|
# -DLEVELDB_PLATFORM_NOATOMIC if it is not
|
|
# -DSNAPPY if the Snappy library is present
|
|
#
|
|
|
|
OUTPUT=$1
|
|
if test -z "$OUTPUT"; then
|
|
echo "usage: $0 <output-filename>" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# Default to fbcode gcc on internal fb machines
|
|
if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
|
|
if [ -z "$USE_CLANG" ]; then
|
|
source $PWD/build_tools/fbcode.gcc471.sh
|
|
else
|
|
source $PWD/build_tools/fbcode.clang31.sh
|
|
fi
|
|
fi
|
|
|
|
# Delete existing output, if it exists
|
|
rm -f $OUTPUT
|
|
touch $OUTPUT
|
|
|
|
if test -z "$CC"; then
|
|
CC=cc
|
|
fi
|
|
|
|
if test -z "$CXX"; then
|
|
CXX=g++
|
|
fi
|
|
|
|
# Detect OS
|
|
if test -z "$TARGET_OS"; then
|
|
TARGET_OS=`uname -s`
|
|
fi
|
|
|
|
COMMON_FLAGS="${CFLAGS}"
|
|
CROSS_COMPILE=
|
|
PLATFORM_CCFLAGS=
|
|
PLATFORM_CXXFLAGS="${CXXFLAGS}"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS"
|
|
PLATFORM_SHARED_EXT="so"
|
|
PLATFORM_SHARED_LDFLAGS="${EXEC_LDFLAGS_SHARED} -shared -Wl,-soname -Wl,"
|
|
PLATFORM_SHARED_CFLAGS="-fPIC"
|
|
PLATFORM_SHARED_VERSIONED=true
|
|
|
|
# generic port files (working on all platform by #ifdef) go directly in /port
|
|
GENERIC_PORT_FILES=`find $ROCKSDB_ROOT/port -name '*.cc' | tr "\n" " "`
|
|
|
|
# On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp
|
|
case "$TARGET_OS" in
|
|
Darwin)
|
|
PLATFORM=OS_MACOSX
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -DOS_MACOSX"
|
|
PLATFORM_SHARED_EXT=dylib
|
|
PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
|
|
# PORT_FILES=port/darwin/darwin_specific.cc
|
|
;;
|
|
Linux)
|
|
PLATFORM=OS_LINUX
|
|
COMMON_FLAGS="$COMMON_FLAGS -DOS_LINUX"
|
|
if [ -z "$USE_CLANG" ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
|
|
fi
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
|
|
# PORT_FILES=port/linux/linux_specific.cc
|
|
;;
|
|
SunOS)
|
|
PLATFORM=OS_SOLARIS
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
|
|
# PORT_FILES=port/sunos/sunos_specific.cc
|
|
;;
|
|
FreeBSD)
|
|
PLATFORM=OS_FREEBSD
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
|
|
# PORT_FILES=port/freebsd/freebsd_specific.cc
|
|
;;
|
|
NetBSD)
|
|
PLATFORM=OS_NETBSD
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lgcc_s"
|
|
# PORT_FILES=port/netbsd/netbsd_specific.cc
|
|
;;
|
|
OpenBSD)
|
|
PLATFORM=OS_OPENBSD
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -pthread"
|
|
# PORT_FILES=port/openbsd/openbsd_specific.cc
|
|
;;
|
|
DragonFly)
|
|
PLATFORM=OS_DRAGONFLYBSD
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
|
|
# PORT_FILES=port/dragonfly/dragonfly_specific.cc
|
|
;;
|
|
OS_ANDROID_CROSSCOMPILE)
|
|
PLATFORM=OS_ANDROID
|
|
COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS " # All pthread features are in the Android C library
|
|
# PORT_FILES=port/android/android.cc
|
|
CROSS_COMPILE=true
|
|
;;
|
|
*)
|
|
echo "Unknown platform!" >&2
|
|
exit 1
|
|
esac
|
|
|
|
$PWD/build_tools/build_detect_version
|
|
|
|
# We want to make a list of all cc files within util, db, table, and helpers
|
|
# except for the test and benchmark files. By default, find will output a list
|
|
# of all files matching either rule, so we need to append -print to make the
|
|
# prune take effect.
|
|
DIRS="util db table utilities"
|
|
if test "$USE_THRIFT"; then
|
|
DIRS="$DIRS thrift/server_utils.cpp thrift/gen-cpp "
|
|
THRIFTSERVER=leveldb_server
|
|
fi
|
|
|
|
if test "$USE_SCRIBE"; then
|
|
DIRS="$DIRS scribe "
|
|
fi
|
|
|
|
set -f # temporarily disable globbing so that our patterns arent expanded
|
|
PRUNE_TEST="-name *test*.cc -prune"
|
|
PRUNE_BENCH="-name *_bench.cc -prune"
|
|
PORTABLE_FILES=`cd $ROCKSDB_ROOT; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cc' -print | sort | tr "\n" " "`
|
|
PORTABLE_CPP=`cd $ROCKSDB_ROOT; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cpp' -print | sort | tr "\n" " "`
|
|
set +f # re-enable globbing
|
|
|
|
# The sources consist of the portable files, plus the platform-specific port
|
|
# file.
|
|
echo "SOURCES=$PORTABLE_FILES $GENERIC_PORT_FILES $PORT_FILES" >> $OUTPUT
|
|
echo "SOURCESCPP=$PORTABLE_CPP" >> $OUTPUT
|
|
echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> $OUTPUT
|
|
|
|
if [ "$CROSS_COMPILE" = "true" ]; then
|
|
# Cross-compiling; do not try any compilation tests.
|
|
true
|
|
else
|
|
# If -std=c++0x works, use <cstdatomic>. Otherwise use port_posix.h.
|
|
$CXX $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <cstdatomic>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT"
|
|
PLATFORM_CXXFLAGS="-std=c++0x"
|
|
else
|
|
COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX"
|
|
fi
|
|
|
|
# Test whether Snappy library is installed
|
|
# http://code.google.com/p/snappy/
|
|
$CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <snappy.h>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -DSNAPPY"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS ${SNAPPY_LDFLAGS:-./snappy/libs/libsnappy.a}"
|
|
fi
|
|
|
|
# Test whether zlib library is installed
|
|
$CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <zlib.h>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -DZLIB"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lz"
|
|
fi
|
|
|
|
# Test whether bzip library is installed
|
|
$CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <bzlib.h>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
COMMON_FLAGS="$COMMON_FLAGS -DBZIP2"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lbz2"
|
|
fi
|
|
|
|
# Test whether tcmalloc is available
|
|
$CXX $CFLAGS -x c++ - -o /dev/null -ltcmalloc 2>/dev/null <<EOF
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
|
|
fi
|
|
fi
|
|
|
|
# shall we use HDFS?
|
|
|
|
if test "$USE_HDFS"; then
|
|
if test -z "$JAVA_HOME"; then
|
|
echo "JAVA_HOME has to be set for HDFS usage."
|
|
exit 1
|
|
fi
|
|
HDFS_CCFLAGS="$HDFS_CCFLAGS -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -DUSE_HDFS"
|
|
HDFS_LDFLAGS="$HDFS_LDFLAGS -Wl,--no-whole-archive hdfs/libhdfs.a -L$JAVA_HOME/jre/lib/amd64"
|
|
HDFS_LDFLAGS="$HDFS_LDFLAGS -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib"
|
|
HDFS_LDFLAGS="$HDFS_LDFLAGS -ldl -lverify -ljava -ljvm"
|
|
COMMON_FLAGS="$COMMON_FLAGS $HDFS_CCFLAGS"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $HDFS_LDFLAGS"
|
|
fi
|
|
|
|
# shall we build thrift server or scribe logger
|
|
if test "$USE_THRIFT" || test "$USE_SCRIBE" ; then
|
|
THRIFT_CCFLAGS=" -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -I/usr/include -std=gnu++0x"
|
|
THRIFT_LDFLAGS=" -lexample -lserver -lthrift_base -ltransport -lthrift_exception -lutil -L./thrift/libs "
|
|
COMMON_FLAGS="$COMMON_FLAGS $THRIFT_CCFLAGS"
|
|
PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $THRIFT_LDFLAGS"
|
|
fi
|
|
|
|
# if Intel SSE instruction set is supported, set USE_SSE=" -msse -msse4.2 "
|
|
COMMON_FLAGS="$COMMON_FLAGS $USE_SSE"
|
|
|
|
PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
|
|
PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"
|
|
|
|
VALGRIND_VER="$VALGRIND_VER"
|
|
|
|
echo "CC=$CC" >> $OUTPUT
|
|
echo "CXX=$CXX" >> $OUTPUT
|
|
echo "PLATFORM=$PLATFORM" >> $OUTPUT
|
|
echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> $OUTPUT
|
|
echo "VALGRIND_VER=$VALGRIND_VER" >> $OUTPUT
|
|
echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> $OUTPUT
|
|
echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> $OUTPUT
|
|
echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> $OUTPUT
|
|
echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> $OUTPUT
|
|
echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> $OUTPUT
|
|
echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> $OUTPUT
|
|
echo "THRIFTSERVER=$THRIFTSERVER" >> $OUTPUT
|
|
echo "EXEC_LDFLAGS=$EXEC_LDFLAGS" >> $OUTPUT
|