Commit graph

74 commits

Author SHA1 Message Date
Magne Mahre
ebd24626ca Remove configuration preprocessor symbols 'THREAD'
and 'THREAD_SAFE_CLIENT'.
  
As of MySQL 5.5, we no longer support non-threaded
builds.   This patch removes all references to the
obsolete THREAD and THREAD_SAFE_CLIENT preprocessor
symbols.  These were used to distinguish between
threaded and non-threaded builds.
2011-01-11 10:07:37 +01:00
Davi Arnaut
e81506971f WL#5498: Remove dead and unused source code
Remove workarounds for ancient systems.
2010-07-23 17:17:55 -03:00
Davi Arnaut
f54a118249 WL#5486: Remove code for unsupported platforms
Remove Netware specific code.
2010-07-15 08:13:30 -03:00
Davi Arnaut
570c6cc87a Backport: Remove unused and ancient files, functions, and facilities. 2010-05-28 19:13:31 -03:00
Marc Alff
e33a8b2a1a WL#2360 Performance schema
Part III: mysys instrumentation
2009-12-09 20:19:51 -07:00
Konstantin Osipov
4cff617c25 Backport of:
----------------------------------------------------------------------
ChangeSet@1.2571, 2008-04-08 12:30:06+02:00, vvaintroub@wva. +122 -0
  Bug#32082 : definition of VOID in my_global.h conflicts with Windows
  SDK headers
  
  VOID macro is now removed. Its usage is replaced with void cast.
  In some cases, where cast does not make much sense (pthread_*, printf, 
  hash_delete, my_seek), cast is ommited.
2009-11-24 16:54:59 +03:00
Konstantin Osipov
7edfae4e86 Backport of:
-------------------------------------------------------------
revno: 2877
committer: Davi Arnaut <Davi.Arnaut@Sun.COM>
branch nick: 35164-6.0
timestamp: Wed 2008-10-15 19:53:18 -0300
message:
Bug#35164: Large number of invalid pthread_attr_setschedparam calls
Bug#37536: Thread scheduling causes performance degradation at low thread count
Bug#12702: Long queries take 100% of CPU and freeze other applications under Windows

The problem is that although having threads with different priorities
yields marginal improvements [1] in some platforms [2], relying on some
statically defined priorities (QUERY_PRIOR and WAIT_PRIOR) to play well
(or to work at all) with different scheduling practices and disciplines
is, at best, a shot in the dark as the meaning of priority values may
change depending on the scheduling policy set for the process.

Another problem is that increasing priorities can hurt other concurrent
(running on the same hardware) applications (such as AMP) by causing
starvation problems as MySQL threads will successively preempt lower
priority processes. This can be evidenced by Bug#12702.

The solution is to not change the threads priorities and rely on the
system scheduler to perform its job. This also enables a system admin
to increase or decrease the scheduling priority of the MySQL process,
if intended.

Furthermore, the internal wrappers and code for changing the priority
of threads is being removed as they are now unused and ancient.

1. Due to unintentional side effects. On Solaris this could artificially
help benchmarks as calling the priority changing syscall millions of
times is more beneficial than the actual setting of the priority.

2. Where it actually works. It has never worked on Linux as the default
scheduling policy SCHED_OTHER only accepts the static priority 0.
2009-11-23 19:57:31 +03:00
tsmith@quadxeon.mysql.com
a95aa68008 Portability fix to work around OS X -x86 toolchain bug with common (uninitialized data) symbols 2007-04-04 11:41:43 +02:00
istruewing@chilla.local
facba6ba3a Post merge fix 2007-03-30 09:14:11 +02:00
istruewing@chilla.local
85dce4b8f8 restored run-time thread lib detection 2007-03-28 16:23:44 +02:00
igor@olga.mysql.com
fb9e0ad3be Merge olga.mysql.com:/home/igor/mysql-5.0-opt
into  olga.mysql.com:/home/igor/mysql-5.1-opt
2007-02-13 01:34:36 -08:00
gkodinov/kgeorge@macbook.gmz
35a84c0aa6 Fixed MacOSX/Intel linking problem
Common symbols with and without initialization
 cause the apple linker to exclude then from the
 list of global symbols.
2007-02-12 16:02:53 +02:00
svoj@mysql.com/april.(none)
db8a7b513c Excluded wrongly merged changeset. 2007-02-07 01:37:21 +04:00
istruewing@chilla.local
80ca34c3a8 Merge chilla.local:/home/mydev/mysql-5.0-axmrg
into  chilla.local:/home/mydev/mysql-5.1-axmrg
2007-02-02 11:34:22 +01:00
istruewing@chilla.local
1616e201d8 Merge chilla.local:/home/mydev/mysql-4.1-axmrg
into  chilla.local:/home/mydev/mysql-5.0-axmrg
2007-02-02 10:03:22 +01:00
istruewing@chilla.local
3a664472de After merge fix 2007-02-02 10:01:44 +01:00
istruewing@chilla.local
ed09987083 Merge chilla.local:/home/mydev/mysql-5.0-axmrg
into  chilla.local:/home/mydev/mysql-5.1-axmrg
2007-02-01 19:41:04 +01:00
istruewing@chilla.local
1c34270464 Merge chilla.local:/home/mydev/mysql-4.1-axmrg
into  chilla.local:/home/mydev/mysql-5.0-axmrg
2007-02-01 10:19:22 +01:00
istruewing@chilla.local
73e61944f7 Merge chilla.local:/home/mydev/mysql-4.0-axmrg
into  chilla.local:/home/mydev/mysql-4.1-axmrg
2007-02-01 08:09:36 +01:00
jani@ua141d10.elisa.omakaista.fi
b3523e398c Cleanup of thread-type (linuxthread or NTPL) detection code
Move get_thread_lib to mysys/my_pthread.c
Set 'thr_client_alarm' to signal number used by thr_alarm to give alarms
2007-01-30 18:52:26 +02:00
istruewing@chilla.local
42bd03e254 Merge chilla.local:/home/mydev/mysql-4.1-axmrg
into  chilla.local:/home/mydev/mysql-5.0-axmrg
2007-01-29 18:47:46 +01:00
jani@a88-113-38-195.elisa-laajakaista.fi
f6e70c1453 Merge a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-4.0
into  a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-4.1
2007-01-22 03:33:59 +02:00
jani@a88-113-38-195.elisa-laajakaista.fi
ff58749b29 Fix for configure to detect library correctly.
Fix to check library in use during runtime.
Fix for Bug#16995, "idle connections not being killed due to timeout when NPTL is used".
2007-01-22 02:32:07 +02:00
kent@kent-amd64.(none)
be15e3bc15 Merge mysql.com:/home/kent/bk/main/mysql-5.0
into  mysql.com:/home/kent/bk/main/mysql-5.1
2006-12-23 20:20:40 +01:00
kent@mysql.com/kent-amd64.(none)
226a5c833f Many files:
Changed header to GPL version 2 only
2006-12-23 20:17:15 +01:00
brian@zim.(none)
6f986a344b UNIXWARE removal 2006-04-17 15:56:59 -07:00
brian@zim.(none)
f6f03576c6 This completes the work done in 5.0 to remove mit_pthread support (most was pulled in 5.0, but there were some pieces left in the tree) 2006-04-16 01:50:25 -07:00
brian@zim.(none)
ba2502b9c3 Another long patch to remove the rest of the OS2 support. 2006-04-15 08:49:00 -07:00
jimw@mysql.com
c8a6c2c614 Fix wait_timeout (and kill) handling on Mac OS X by cleaning up how
signal handlers are set up, the blocking flags for sockets are set,
and which thread-related functions are used. (Bug #8731)
2005-10-11 09:12:12 -07:00
konstantin@mysql.com
f08bbd1f12 assert.h needed for my_dbug.h now is included in my_dbug.h, where it for
some reason wasn't included before.
A lot of files cleaned up from #include <assert.h>
2004-06-10 23:58:39 +04:00
monty@mysql.com
7d8f8bc77b Changed prototype of killed_ptr() to make it more portable
Applied patches for Netware
2004-05-26 19:12:49 +03:00
monty@mysql.com
390d9898f9 merge with 4.0 to get Netware patches and fixes for libmysqld.dll 2004-05-25 22:54:00 +03:00
monty@mysql.com
f2e1e3ce4c Added patches from Novell 2004-05-25 22:00:14 +03:00
monty@narttu.mysql.fi
77a70a0a24 merge with 4.0.15 2003-08-29 13:44:35 +03:00
monty@narttu.mysql.fi
8a77f97079 Add detection of in_addr_t
Add pack_bits to pack_reclength for dynamic rows.  This solves buffer a possible buffer overflow on update.
(This will probably solve bug #563)
Fix test for available file descriptors in mysqltest
Fixed core dump bug in replication tests when running without transactional table support
2003-08-28 06:08:17 +03:00
dlenev@dlenev.mshome
921ac8af8b Implemented UTC_TIME, UTC_DATE and UTC_TIMESTAMP functions (WL#345) 2003-08-11 23:43:01 +04:00
greg@mysql.com
1d2507e875 Change to NetWare platform mods, per Monty 2003-04-27 21:15:52 -04:00
greg@mysql.com
24968f1ee3 Changes from Novell for NetWare platform 2003-04-24 20:48:54 -04:00
greg@mysql.com
67985efed5 Post-4.0.12 changes from Novell: mostly NetWare-related code changes to utilize new LibC 2003-03-21 16:45:39 -05:00
monty@narttu.mysql.fi
b4fbb06ad8 Portability fix for HPUX10.20 2003-02-25 21:43:24 +02:00
monty@mashka.mysql.fi
689578a099 Fixes for Netware
Call pthread_mutex_destroy() on not used mutex.
Changed comments in .h and .c files from // -> /* */
Added detection of mutex on which one didn't call pthread_mutex_destroy()
Fixed bug in create_tmp_field() which causes a memory overrun in queries that uses "ORDER BY constant_expression"
Added optimisation for ORDER BY NULL
2003-01-28 08:38:28 +02:00
lenz@mysql.com
9b769dbd22 - replaced all occurences of HPUX with HPUX10 (to be prepared for eventual
differences in HPUX11)
2002-10-24 14:30:25 +02:00
monty@hundin.mysql.fi
f7c8bd0e47 Portability fixes for 4.0.3 build.
Don't update MyISAM index file on UPDATE if index is not changed
2002-08-17 18:02:56 +03:00
monty@hundin.mysql.fi
5773b6504a Fixed bug in blocking handling when compiling with OPENSSL (caused hangup in client code)
Fixed bug in SELECT DISTINCT ... ORDER BY not-used-column.
Fixed bug in pthread_mutex_trylock with HPUX 11.0
2002-08-17 00:35:51 +03:00
monty@hundin.mysql.fi
5ff30464a6 merge with 3.23.53
New fix for pthread_mutex_trylock for HPUX 10.20
2002-08-16 14:41:22 +03:00
monty@work.mysql.com
f0a33cd947 Added missing undef that caused infinite recursion on HPUX 2002-08-13 23:46:10 +02:00
heikki@hundin.mysql.fi
dea34642bd my_pthread.c:
In HP-UX-10.20 my_pthread_mutex_trylock erroneously returned 0 also in the case where the mutex was not acquired
2002-08-14 00:41:33 +03:00
monty@work.mysql.com
b495971044 Removed not needed comment (to keep aligned with the rest of the code) 2002-08-13 23:41:32 +02:00
heikki@hundin.mysql.fi
b546212a16 my_pthread.c:
Fix an infinite recursion in my_pthread_mutex_trylock in HP-UX-10.20; the same bug is in the 4.0 tree
2002-08-13 23:33:51 +03:00
monty@hundin.mysql.fi
a31406e34e Fix for Intel compiler (ecc)
Minor cleanups to other patches.
Make --temp-pool default
2002-08-08 03:14:44 +03:00