Changed -O6 to -O3 (bc7731c0) · Commits · Software / OSDI20 Artifacts / mariadb

BUILD/SETUP.sh

+2 −2

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		@@ -43,8 +43,8 @@ alpha_cflags="-mcpu=ev6 -Wa,-mev6" # Not used yet
		pentium_cflags="-mpentiumpro"
		sparc_cflags=""

		fast_cflags="-O6 -fno-omit-frame-pointer"
		reckless_cflags="-O6 -fomit-frame-pointer -ffixed-ebp"
		fast_cflags="-O3 -fno-omit-frame-pointer"
		reckless_cflags="-O3 -fomit-frame-pointer -ffixed-ebp"
		debug_cflags="-DEXTRA_DEBUG -DFORCE_INIT_OF_VARS -DSAFEMALLOC -DSAFE_MUTEX -O2"

		base_cxxflags="-felide-constructors -fno-exceptions -fno-rtti"

BUILD/compile-pentium-max

100644 → 100755

+0 −0

File mode changed from 100644 to 100755.

View file

Docs/manual.texi

+19 −19

Original line number	Diff line number	Diff line
		@@ -6152,13 +6152,13 @@ the compiler you are using:
		@tindex environment variable, CXXFLAGS
		@multitable @columnfractions .20 .80
		@item gcc 2.7.2.1 @tab
		CC=gcc CXX=gcc CXXFLAGS="-O6 -felide-constructors"
		CC=gcc CXX=gcc CXXFLAGS="-O3 -felide-constructors"
		@item egcs 1.0.3a @tab
		CC=gcc CXX=gcc CXXFLAGS="-O6 -felide-constructors -fno-exceptions -fno-rtti"
		CC=gcc CXX=gcc CXXFLAGS="-O3 -felide-constructors -fno-exceptions -fno-rtti"
		@item gcc 2.95.2 @tab
		CFLAGS="-O6 -mpentiumpro" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -felide-constructors -fno-exceptions -fno-rtti"
		CFLAGS="-O3 -mpentiumpro" CXX=gcc CXXFLAGS="-O3 -mpentiumpro -felide-constructors -fno-exceptions -fno-rtti"
		@item pgcc 2.90.29 or newer @tab
		CFLAGS="-O6 -mpentiumpro -mstack-align-double" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -mstack-align-double -felide-constructors -fno-exceptions -fno-rtti"
		CFLAGS="-O3 -mpentiumpro -mstack-align-double" CXX=gcc CXXFLAGS="-O3 -mpentiumpro -mstack-align-double -felide-constructors -fno-exceptions -fno-rtti"
		@end multitable

		In most cases you can get a reasonably optimal @strong{MySQL} binary by
		@@ -6173,7 +6173,7 @@ The full configure line would in other words be something like the
		following for all recent gcc versions:

		@example
		CFLAGS="-O6 -mpentiumpro" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static
		CFLAGS="-O3 -mpentiumpro" CXX=gcc CXXFLAGS="-O3 -mpentiumpro -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static
		@end example

		The binaries we provide on the @strong{MySQL} Web site at
		@@ -6498,9 +6498,9 @@ and @code{CXX}. For example:

		@example
		shell> CC=gcc
		shell> CFLAGS=-O6
		shell> CFLAGS=-O3
		shell> CXX=gcc
		shell> CXXFLAGS=-O6
		shell> CXXFLAGS=-O3
		shell> export CC CFLAGS CXX CXXFLAGS
		@end example

		@@ -7017,8 +7017,8 @@ SPARC!
		The recommended @code{configure} line when using @code{gcc} 2.95.2 is:

		@example
		CC=gcc CFLAGS="-O6" \
		CXX=gcc CXXFLAGS="-O6 -felide-constructors -fno-exceptions -fno-rtti" \
		CC=gcc CFLAGS="-O3" \
		CXX=gcc CXXFLAGS="-O3 -felide-constructors -fno-exceptions -fno-rtti" \
		./configure --prefix=/usr/local/mysql --with-low-memory --enable-assembler
		@end example

		@@ -7231,9 +7231,9 @@ experience problems with core dumps under load, you should use the
		following @code{configure} command:

		@example
		CC=gcc CFLAGS="-O6 -fomit-frame-pointer -DHAVE_CURSES_H" \
		CC=gcc CFLAGS="-O3 -fomit-frame-pointer -DHAVE_CURSES_H" \
		CXX=gcc \
		CXXFLAGS="-O6 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti -DHAVE_CURSES_H" \
		CXXFLAGS="-O3 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti -DHAVE_CURSES_H" \
		./configure --prefix=/usr/local/mysql
		@end example

		@@ -7668,7 +7668,7 @@ CC=ccc CFLAGS="-fast" CXX=cxx CXXFLAGS="-fast -noexceptions -nortti" ./configure
		If you want to use egcs the following configure line worked for us:

		@example
		CFLAGS="-O6 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --disable-shared
		CFLAGS="-O3 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --disable-shared
		@end example

		Some known problems when running @strong{MySQL} on Linux-Alpha:
		@@ -8484,7 +8484,7 @@ the definition in @file{pthread.h}. Here's the diff:
		After this, the following configure line should work:

		@example
		CFLAGS="-fomit-frame-pointer -O6 -fpic" CXX=gcc CXXFLAGS="-felide-constructors -fno-exceptions -fno-rtti -O6" ./configure --prefix=/usr/local/mysql --disable-shared
		CFLAGS="-fomit-frame-pointer -O3 -fpic" CXX=gcc CXXFLAGS="-felide-constructors -fno-exceptions -fno-rtti -O3" ./configure --prefix=/usr/local/mysql --disable-shared
		@end example

		Here is some information that a HPUX Version 11.x user sent us about compiling
		@@ -9217,19 +9217,19 @@ and are configured with the following compilers and options:
		@code{CC=gcc CXX=gcc CXXFLAGS="-O3 -felide-constructors" ./configure --prefix=/usr/local/mysql --disable-shared --with-extra-charsets=complex --enable-assembler}

		@item SunOS 5.5.1 sun4u with @code{egcs} 1.0.3a
		@code{CC=gcc CFLAGS="-O6 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-low-memory --with-extra-charsets=complex}
		@code{CC=gcc CFLAGS="-O3 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-low-memory --with-extra-charsets=complex}

		@item SunOS 5.6 sun4u with @code{egcs} 2.90.27
		@code{CC=gcc CFLAGS="-O6 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-low-memory --with-extra-charsets=complex}
		@code{CC=gcc CFLAGS="-O3 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-low-memory --with-extra-charsets=complex}

		@item SunOS 5.6 i86pc with @code{gcc} 2.8.1
		@code{CC=gcc CXX=gcc CXXFLAGS=-O3 ./configure --prefix=/usr/local/mysql --with-low-memory --with-extra-charsets=complex}

		@item Linux 2.0.33 i386 with @code{pgcc} 2.90.29 (@code{egcs} 1.0.3a)
		@code{CFLAGS="-O6 -mpentium -mstack-align-double -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -mpentium -mstack-align-double -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static --with-extra-charsets=complex}
		@code{CFLAGS="-O3 -mpentium -mstack-align-double -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -mpentium -mstack-align-double -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static --with-extra-charsets=complex}

		@item Linux 2.2.x with x686 with @code{gcc} 2.95.2
		@code{CFLAGS="-O6 -mpentiumpro -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -mpentiumpro -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static --disable-shared --with-extra-charset=complex}
		@code{CFLAGS="-O3 -mpentiumpro -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O3 -mpentiumpro -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --enable-assembler --with-mysqld-ldflags=-all-static --disable-shared --with-extra-charset=complex}

		@item SCO 3.2v5.0.4 i386 with @code{gcc} 2.7-95q4
		@code{CC=gcc CXX=gcc CXXFLAGS=-O3 ./configure --prefix=/usr/local/mysql --with-extra-charsets=complex}
		@@ -28250,7 +28250,7 @@ other operating systems and workloads.
		You get the fastest executable when you link with @code{-static}.

		On Linux, you will get the fastest code when compiling with @code{pgcc}
		and @code{-O6}. To compile @file{sql_yacc.cc} with these options, you
		and @code{-O3}. To compile @file{sql_yacc.cc} with these options, you
		need about 200M memory because @code{gcc/pgcc} needs a lot of memory to
		make all functions inline. You should also set @code{CXX=gcc} when
		configuring @strong{MySQL} to avoid inclusion of the @code{libstdc++}
		@@ -48577,7 +48577,7 @@ lists the @code{mysqld} version as @code{mysql ... -debug} in this case.
		If you are using gcc or egcs, the recommended configure line is:

		@example
		CC=gcc CFLAGS="-O6" CXX=gcc CXXFLAGS="-O6 -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-debug --with-extra-charsets=complex
		CC=gcc CFLAGS="-O2" CXX=gcc CXXFLAGS="-O2 -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-debug --with-extra-charsets=complex
		@end example

		This will avoid problems with the @code{libstdc++} library and with C++

configure.in

+2 −2

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		@@ -691,7 +691,7 @@ int main()
		# Some system specific hacks
		#

		MAX_C_OPTIMIZE="-O6"
		MAX_C_OPTIMIZE="-O3"

		case $SYSTEM_TYPE in
		solaris2.7)
		@@ -1333,7 +1333,7 @@ AC_CHECK_FUNCS(alarm bmove \
		sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \
		pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \
		pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \
		pthread_condattr_create rwlock_init pthread_rwlock_rdlock \
		pthread_condattr_create rwlock_init pthread_rwlock_rdlock pthread_yield\
		dlopen dlerror fchmod getpass getpassphrase initgroups mlockall)

		# Sanity check: We chould not have any fseeko symbol unless

innobase/os/os0thread.c

+4 −2

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		@@ -135,10 +135,12 @@ void
		os_thread_yield(void)
		/=================/
		{
		#ifdef __WIN__
		#if defined(__WIN__)
		Sleep(0);
		#else
		#elif defined(HAVE_PTHREAD_YIELD)
		pthread_yield();
		#else
		os_thread_sleep(0);
		#endif
		}