Fixed some reported bugs (b31d0768) · Commits · Software / OSDI20 Artifacts / mariadb

BUILD/compile-alpha-cxx

+2 −1

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		@@ -4,7 +4,8 @@ make -k clean
		/bin/rm -f config.cache mysql-*.tar.gz
		aclocal; autoheader; aclocal; automake; autoconf

		CC=ccc CFLAGS="-fast" CXX=cxx CXXFLAGS="-fast -noexceptions -nortti" ./configure --prefix=/usr/local/mysql --disable-shared --with-extra-charsets=complex --enable-thread-safe-client --with-mysqld-ldflags=-all-static
		CC=ccc CFLAGS="-fast" CXX=cxx CXXFLAGS="-fast -noexceptions -nortti" ./configure --prefix=/usr/local/mysql --disable-shared --with-extra-charsets=complex --enable-thread-safe-client --with-mysqld-ldflags=-non_shared --with-client-ldflags=-non_shared

		make
		rm /.deps/
		make

Docs/manual.texi

+72 −46

Original line number	Diff line number	Diff line
		@@ -1972,6 +1972,9 @@ Apart from the following links, you can find and download a lot of
		@c @item @uref{http://www.devshed.com/resource/advanced/mysql/index.html, A
		@c beginner's tutorial of how to start using @strong{MySQL}}

		@item @uref{http://www.4t2.com/mysql. German MySQL maling list}
		Information about the German MySQL mailing list.

		@item @uref{http://www.analysisandsolutions.com/code/mybasic.htm}@*
		Beginners @strong{MySQL} Tutorial on how to install and set up
		@strong{MySQL} on a Windows machine.
		@@ -2069,7 +2072,6 @@ organization.
		@item @uref{http://www.xnot.com/kmysql}@*
		KDE @strong{MySQL} client.


		@c EMAIL: bilhaut_f@mail.cpod.fr (Frédérik Bilhaut)
		@item @uref{http://www.penguinpowered.com/~kmysql}@*
		KMySQL is a database client for KDE that primarily supports @strong{MySQL}.
		@@ -2090,6 +2092,14 @@ A free report writer in Java
		@item @uref{http://www.javaframework.de}@*
		MySQLExport - Export of @strong{MySQL} create statements and data in a lot of
		different formats (SQL, HTML, CVS, text, ZIP, GZIP...)

		@item @uref{http://dlabs.4t2.com, M2D}
		A MySQL-ADmin-client for windows. It supports administration of
		MySQL-Databases, creating of new DBs and tables, editing etc.

		@item @uref{http://www.scibit.com/Products/Software/Utils/Mascon.asp,
		Mascon home page}.
		Mascon is a powerful Win32 GUI for the administering MySQL server databases.
		@end itemize

		@subheading Distributions that Include MySQL
		@@ -2629,6 +2639,9 @@ unsubscribe from the @code{myodbc} list, send a message to
		@email{myodbc-subscribe@@lists.mysql.com} or
		@email{myodbc-unsubscribe@@lists.mysql.com}.

		There is also a german mailing list. You can find information about this
		at: @uref{http://www.4t2.com/mysql}.

		@cindex net etiquette
		@cindex mailing lists, archive location
		@cindex searching, MySQL webpages
		@@ -6896,59 +6909,40 @@ We have tested @strong{MySQL} on Alpha with our benchmarks + test suite and
		it appears to work nicely. The main thing we haven't yet had time to test
		is how things works with many concurrent users.

		When we compiled @strong{MySQL} we where using SuSE 6.3, kernel 2.2.13-SMP,
		egcs 1.1.2, and libc-2.1.2-28.
		When we compiled the standard @strong{MySQL} binary we are using SuSE 6.4,
		kernel 2.2.13-SMP, Compaq C compiler (V6.2-504) and Compaq C++ compiler
		(V6.3-005) on a Comaq DS20 machine with an Alpha EV6 processor

		We used the following configure line:
		You can find the above compilers at
		@uref{http://www.support.compaq.com/alpha-tools}). By using these compilers,
		instead of gcc, we get about 9-14 % better performance with @strong{MySQL}.

		Note that the configure line optimized the binary for the current CPU; This
		means you can only use our binary if you have an Alpha EV6 processor.
		We also compile staticly to avoid library problems.

		@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
		CC=ccc CFLAGS="-fast" CXX=cxx CXXFLAGS="-fast -noexceptions -nortti" ./configure --prefix=/usr/local/mysql --disable-shared --with-extra-charsets=complex --enable-thread-safe-client --with-mysqld-ldflags=-non_shared --with-client-ldflags=-non_shared
		@end example

		If you have access to Compaq's C compiler, the following configure line
		will give you about 9 % more performance:
		If you want to use egcs the following configure line worked for us:

		@example
		CC=ccc CFLAGS="-fast -O3 -fomit-frame-pointer" CXX=gcc CXXFLAGS="-O6 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti -mcpu=ev6 -Wa,-mev6" CXXLDFLAGS='/usr/lib/compaq/libots-2.2.7/libots.so /usr/lib/compaq/cpml-5.0.0/libcpml_ev6.a' ./configure --prefix=/usr/local/mysql --disable-shared
		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
		@end example

		Note that the last example assumes your are using an Alpha EV6 processor.

		Some known problems when running @strong{MySQL} on Linux-Alpha:

		@itemize @bullet
		@item
		If you create many files ( > 10000) in one directory (as done by the
		@code{test-create} in the @strong{MySQL} benchmarks, mysqld may report
		the error @code{Can't create/write to file '...' (Errcode: 12)}. This
		is probably a bug in the Linux-Alpha kernel.
		@item
		Debugging threaded applications like @strong{MySQL} will not work with
		@code{gdb 4.18}. You should download and use gdb 5.0 instead!
		@item
		If you try linking mysqld staticly, the resulting image will core dump
		at start. In other words, @strong{DON'T} use
		@code{--with-mysqld-ldflags=-all-static}
		If you try linking mysqld staticly when using gcc, the resulting image
		will core dump at start. In other words, @strong{DON'T} use
		@code{--with-mysqld-ldflags=-all-static} with gcc
		@end itemize

		We don't yet know if the following old information is still relevant, so we
		leave this here until we have had time to test Linux-Alpha properly.

		If you have problems with signals (@strong{MySQL} dies unexpectedly
		under high load) you may have found an OS bug with threads and
		signals. In this case you can tell @strong{MySQL} not to use signals by
		configuring with:

		@example
		shell> CFLAGS=-DDONT_USE_THR_ALARM \
		CXXFLAGS=-DDONT_USE_THR_ALARM \
		./configure ...
		@end example

		This doesn't affect the performance of @strong{MySQL}, but has the side
		effect that you can't kill clients that are ``sleeping'' on a connection with
		@code{mysqladmin kill} or @code{mysqladmin shutdown}. Instead, the client
		will die when it issues its next command.

		@node MKLinux, Qube2, Linux-Alpha, Linux
		@subsubsection MkLinux Notes

		@@ -30808,13 +30802,32 @@ problems if you have values > 127 in the column!

		@cindex ADO program
		@item ADO
		When you access @strong{MyODBC} through ADO, @strong{MyODBC} doesn't
		return a result for @code{SQLRowCount} for a query. We have tried to
		track this down and according to ODBC logs, @strong{MyODBC} returns the
		correct answer but the ADO client only gets -1 back from the ODBC
		manager. Because of this we can only assume this is a bug in ADO.
		When you are coding with the ADO API and @strong{MyODBC} you need to put
		attention in some default properties that aren't supported by the
		@strong{MySQL} server. For example using the @code{CursorLocation
		Property} as @code{adUseServer} will return for the @code{RecordCount
		Property} a result of -1. To have the right value, you need to set this
		property to @code{adUseClient}, like is showing in the VB code below:

		The only known workaround is to use a @code{SELECT COUNT(*)} statement
		@example
		Dim myconn As New ADODB.Connection
		Dim myrs As New Recordset
		Dim mySQL As String
		Dim myrows As Long

		myconn.Open "DSN=MyODBCsample"
		mySQL = "SELECT * from user"
		myrs.Source = mySQL
		Set myrs.ActiveConnection = myconn
		myrs.CursorLocation = adUseClient
		myrs.Open
		myrows = myrs.RecordCount

		myrs.Close
		myconn.Close
		@end example

		Another workaround is to use a @code{SELECT COUNT(*)} statement
		for a similar query to get the correct row count.

		@cindex Borland Buidler 4 program
		@@ -37705,7 +37718,7 @@ Fernandez Herrero.
		@itemize @bullet
		@item Graphical clients
		@itemize @bullet
		@item @uref{http://www.ideit.com/products/dbvis: DbVisualizer}
		@item @uref{http://www.ideit.com/products/dbvis, DbVisualizer}
		Freeware JDBC client to graphically visualize the data and structure
		of several databases simultaneously. By Innovative-IT Development AB.

		@@ -38531,6 +38544,17 @@ though, so Version 3.23 is not released as a stable version yet.
		@appendixsubsec Changes in release 3.23.28
		@itemize @bullet
		@item
		Fixed bug when using a multi-part keys where the first part was of type
		@code{TEXT} or @code{BLOB}.
		@item
		@code{DROP} of temporary tables wasn't stored in the update/binary log.
		@item
		Fixed bug where @code{SELECT DISTINCT * ... LIMIT #} only returned 1 row.
		@item
		Fixed a bug in the assembler code in strstr for sparc and cleaned up
		the global.h header file to avoid a problem with bad aliasing with
		the compiler submitted with RedHat 7.0. (Reported by Trond Eivind Glomsrød)
		@item
		Fixed the @code{--skip-networking} works properly on NT.
		@item
		Fixed long outstanding bug in the @code{ISAM} tables when a row with a length
		@@ -43045,6 +43069,9 @@ Allow users to change startup options without taking down the server.
		Help for all commands from the client.
		@item
		Secure connections (with SSL).
		@item
		Extend the optimizer to be able to optimize some
		@code{ORDER BY key_name DESC} queries.
		@end itemize

		@node TODO future, TODO sometime, TODO MySQL 4.0, TODO
		@@ -43185,8 +43212,7 @@ Function @code{CASE}.
		Many more variables for @code{show status}. Counts for:
		@code{INSERT}/@code{DELETE}/@code{UPDATE} statements. Records reads and
		updated. Selects on 1 table and selects with joins. Mean number of
		tables in select. Key buffer read/write hits (logical and real).
		@code{ORDER BY}, @code{GROUP BY}, temporary tables created.
		tables in select. Number of @code{ORDER BY} and @code{GROUP BY} queries.
		@item
		If you abort @code{mysql} in the middle of a query, you should open
		another connection and kill the old running query.

myisam/mi_key.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -181,10 +181,14 @@ uint _mi_pack_key(register MI_INFO info, uint keynr, uchar key, uchar *old,
		}
		else if (keyseg->flag & (HA_VAR_LENGTH \| HA_BLOB_PART))
		{
		uint tmp_length=uint2korr(pos); pos+=2;
		/* Length of key-part used with mi_rkey() always 2 */
		uint tmp_length=uint2korr(pos);
		k_length-= 2+length;
		set_if_smaller(length,tmp_length);
		store_key_length_inc(key,length);
		k_length-=2;
		memcpy((byte*) key, pos+2,(size_t) length);
		key+= length;
		continue;
		}
		else if (keyseg->flag & HA_SWAP_KEY)
		{ /* Numerical column */

mysys/Makefile.am

+17 −6

Original line number	Diff line number	Diff line
		@@ -61,7 +61,7 @@ DEFS = -DDEFAULT_BASEDIR=\"$(prefix)\" \
		-DSHAREDIR="\"$(MYSQLSHAREdir)\"" \
		@DEFS@

		#getopt1.o: @THREAD_LOBJECTS@
		libmysys_a_DEPENDENCIES= @THREAD_LOBJECTS@

		OMIT_DEPENDENCIES = pthread.h stdio.h __stdio.h stdlib.h __stdlib.h math.h\
		__math.h time.h __time.h unistd.h __unistd.h types.h \
		@@ -75,11 +75,25 @@ OMIT_DEPENDENCIES = pthread.h stdio.h __stdio.h stdlib.h __stdlib.h math.h\
		# I hope this always does the right thing. Otherwise this is only test programs
		FLAGS=$(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)

		#
		# The CP .. RM stuff is to avoid problems with some compilers (like alpha ccc)
		# which automaticly removes the object files you use to compile a final program
		#

		test_thr_alarm: thr_alarm.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/thr_alarm.c $(LDADD) $(LIBS)
		$(CP) $(srcdir)/thr_alarm.c ./test_thr_alarm.c
		$(LINK) $(FLAGS) -DMAIN ./test_thr_alarm.c $(LDADD) $(LIBS)
		$(RM) ./test_thr_alarm.*

		test_thr_lock: thr_lock.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/thr_lock.c $(LDADD) $(LIBS)
		$(CP) $(srcdir)/thr_lock.c test_thr_lock.c
		$(LINK) $(FLAGS) -DMAIN ./test_thr_lock.c $(LDADD) $(LIBS)
		$(RM) ./test_thr_lock.*

		test_vsnprintf: my_vsnprintf.c $(LIBRARIES)
		$(CP) $(srcdir)/my_vsnprintf.c test_vsnprintf.c
		$(LINK) $(FLAGS) -DMAIN ./test_vsnprintf.c $(LDADD) $(LIBS)
		$(RM) test_vsnprintf.*

		test_dir: test_dir.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/test_dir.c $(LDADD) $(LIBS)
		@@ -87,9 +101,6 @@ test_dir: test_dir.c $(LIBRARIES)
		test_charset: test_charset.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/test_charset.c $(LDADD) $(LIBS)

		test_vsnprintf: my_vsnprintf.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/my_vsnprintf.c $(LDADD) $(LIBS)

		test_hash: test_hash.c $(LIBRARIES)
		$(LINK) $(FLAGS) -DMAIN $(srcdir)/test_dir.c $(LDADD) $(LIBS)

sql-bench/Results/ATIS-mysql-Linux_2.2.13_SMP_alpha

+7 −7

Original line number	Diff line number	Diff line
		Testing server 'MySQL 3.23.25 beta' at 2000-10-13 0:30:52
		Testing server 'MySQL 3.23.28 gamma' at 2000-11-18 15:05:04

		ATIS table test

		@@ -6,14 +6,14 @@ Creating tables
		Time for create_table (28): 0 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU)

		Inserting data
		Time to insert (9768): 4 wallclock secs ( 0.66 usr 0.60 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time to insert (9768): 3 wallclock secs ( 0.68 usr 0.60 sys + 0.00 cusr 0.00 csys = 0.00 CPU)

		Retrieving data
		Time for select_simple_join (500): 2 wallclock secs ( 0.64 usr 0.38 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_join (200): 13 wallclock secs ( 4.22 usr 3.17 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_distinct (800): 11 wallclock secs ( 1.68 usr 1.02 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_group (2800): 10 wallclock secs ( 1.54 usr 0.65 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_simple_join (500): 2 wallclock secs ( 0.62 usr 0.39 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_join (200): 12 wallclock secs ( 4.31 usr 3.11 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_distinct (800): 11 wallclock secs ( 1.72 usr 0.95 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Time for select_group (2800): 10 wallclock secs ( 1.58 usr 0.66 sys + 0.00 cusr 0.00 csys = 0.00 CPU)

		Removing tables
		Time to drop_table (28): 0 wallclock secs ( 0.00 usr 0.00 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Total time: 40 wallclock secs ( 8.74 usr 5.83 sys + 0.00 cusr 0.00 csys = 0.00 CPU)
		Total time: 38 wallclock secs ( 8.93 usr 5.72 sys + 0.00 cusr 0.00 csys = 0.00 CPU)