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Monty 0b7b5cc1b3 MDEV-24 Segmented key cache for Aria 
Added option 'aria-pagecache-segments', default 1.

For values > 1, this split the aria-pagecache-buffer into the given
number of segments, each independent from each other.  Having multiple
pagecaches improve performance when multiple connections runs queries
concurrently using different tables.

Each pagecache will use aria-pageache-buffer/segments amount of
memory, however at least 128K.

Each opened table has its index and data file use the segments in a
a round-robin fashion.

Internal changes:
- All programs allocating the maria pagecache themselves should now
  call multi_init_pagecache() instead of init_pagecache().
- pagecache statistics is now stored in 'pagecache_stats' instead of
  maria_pagecache. One must call multi_update_pagecache_stats() to
  update the statistics.
- Added into PAGECACHE_FILE a pointer to files pagecache. This was
  done to ensure that index and data file are using the same
  pagecache and simplified the checkpoint code.
  I kept pagecache in TABLE_SHARE to minimize the changes.
- really_execute_checkpoint() was update to handle a dynamic number of
  pagecaches.
- pagecache_collect_changed_blocks_with_lsn() was slight changed to
  allow it to be called for each pagecache.
- undefined not used functions maria_assign_pagecache() and
  maria_change_pagecache()
- ma_pagecaches.c is totally rewritten. It now contains all
  multi_pagecache functions.

Errors found be QA that are fixed:
MDEV-36872 UBSAN errors in ma_checkpoint.c
MDEV-36874 Behavior upon too small aria_pagecache_buffer_size in case of
           multiple segments is not very user-friendly
MDEV-36914 ma_checkpoint.c(285,9): conversion from '__int64' to 'uint'
           treated as an error
MDEV-36912 sys_vars.sysvars_server_embedded and
           sys_vars.sysvars_server_notembedded fail on x86
2025-06-25 17:59:45 +03:00
..
atomic MDEV-25870 followup - some Windows ARM64 improvements 2023-09-24 11:20:38 +02:00
mysql MDEV-12182 post-merge 2025-05-02 13:56:25 +02:00
providers support lzma < 5.1.3alpha 2022-02-09 19:13:52 +01:00
aligned.h Revert aligned_alloc() addition from MDEV-28836 2022-08-22 09:10:40 +03:00
aria_backup.h S3 is pluggable now 2020-06-19 19:43:07 +02:00
assume_aligned.h Remove a misleading copyright message 2020-03-21 10:25:54 +02:00
big_endian.h MDEV-34970 Vector search fails to compile on s390x 2024-11-05 14:00:50 -08:00
byte_order_generic.h Fix all warnings given by UBSAN 2021-04-20 12:30:09 +03:00
byte_order_generic_x86.h Fix all warnings given by UBSAN 2021-04-20 12:30:09 +03:00
byte_order_generic_x86_64.h typo fixed. HAVE_mi_uint8korr 2023-11-02 19:42:39 +11:00
CMakeLists.txt MDEV-34348: Consolidate cmp function declarations 2024-11-23 08:14:22 -07:00
decimal.h Added typedef decimal_digits_t (uint16) for number of digits in most 2021-05-19 22:27:27 +02:00
dur_prop.h Merge InnoDB 5.7 from mysql-5.7.9. 2016-09-02 13:22:28 +03:00
errmsg.h test cases for MySQL bugs 2022-01-21 16:02:34 +01:00
ft_global.h MDEV-31340 Remove MY_COLLATION_HANDLER::strcasecmp() 2024-04-18 15:22:10 +04:00
handler_ername.h MDEV-9101 forgotten symbolic error representation 2025-03-06 10:00:03 +01:00
handler_state.h Fix for MDEV-533: Confusing error code when doing auto-increment insert for out-of-range values 2012-09-18 15:14:19 +03:00
hash.h Merge 11.4 into 11.7 2024-12-02 17:51:17 +02:00
heap.h MDEV-35469 Heap tables are calling mallocs to often 2025-01-05 16:40:11 +02:00
ilist.h Merge 10.6 into 10.8 2023-02-10 13:43:53 +02:00
json_lib.h Merge branch '11.8' into 12.0 2025-05-22 09:22:55 +02:00
keycache.h Merge branch '5.5' into 10.1 2019-05-11 22:19:05 +03:00
lf.h Fix typos in C comments in miscellaneous files 2025-03-24 13:36:28 +11:00
little_endian.h Update FSF address 2019-05-11 19:25:02 +03:00
m_ctype.h Merge branch '11.8' into 12.0 2025-05-22 09:22:55 +02:00
m_string.h MDEV-31340 fixup: clang++-20 -Wdeprecated-literal-operator 2024-12-02 10:44:06 +02:00
ma_dyncol.h Merge 10.4 into 10.5 2023-01-03 17:08:42 +02:00
maria.h MDEV-24 Segmented key cache for Aria 2025-06-25 17:59:45 +03:00
mariadb_capi_rename.h more C API methods in the service_sql 2025-01-28 19:31:29 +01:00
my_alloc.h memroot improvement: fix savepoint support 2024-11-05 14:00:47 -08:00
my_alloca.h Merge branch '10.4' into 10.5 2023-04-24 12:43:47 +02:00
my_atomic.h MDEV-17441 fixup: Remove unused my_atomic long macros 2022-03-24 09:53:52 +02:00
my_atomic_wrapper.h Merge 10.5 into 10.6 2023-02-10 13:03:01 +02:00
my_attribute.h Get debug version to compile with gcc 7.5.0 2025-06-02 14:02:53 +03:00
my_base.h Merge branch '11.8' into 12.0 2025-05-22 09:22:55 +02:00
my_bit.h cleanup: spaces, casts, comments 2024-11-05 14:00:47 -08:00
my_bitmap.h Merge 10.6 into 10.11 2024-03-28 09:16:57 +02:00
my_byteorder.h Fix typos in C comments in miscellaneous files 2025-03-24 13:36:28 +11:00
my_check_opt.h Merge branch '5.5' into 10.1 2019-05-11 22:19:05 +03:00
my_cmp.h MDEV-34348: Consolidate cmp function declarations 2024-11-23 08:14:22 -07:00
my_compare.h Fix typos in C comments in miscellaneous files 2025-03-24 13:36:28 +11:00
my_compiler.h MDEV-33748 get rid of pthread_(get_/set_)specific, use thread_local 2024-06-21 13:46:41 +02:00
my_counter.h Apply clang-tidy to remove empty constructors / destructors 2023-02-09 16:09:08 +02:00
my_cpu.h Fix building with Clang and GCC on RISC-V 2025-03-21 18:28:36 +01:00
my_crypt.h Merge branch '5.5' into 10.1 2019-05-11 22:19:05 +03:00
my_dbug.h Reënable ATTRIBUTE_FORMAT on DBUG_PRINT & t/eprint 2025-02-12 10:17:44 +01:00
my_decimal_limits.h header typos 2022-12-20 08:55:48 +11:00
my_default.h MDEV-22214 mariadbd.exe calls function mysqld.exe, and crashes 2020-04-10 19:05:26 +02:00
my_dir.h Merge 10.6 into 10.7 2023-01-04 14:52:25 +02:00
my_getopt.h Fix typos in C comments in miscellaneous files 2025-03-24 13:36:28 +11:00
my_global.h MDEV-24 Segmented key cache for Aria 2025-06-25 17:59:45 +03:00
my_handler_errors.h Merge 11.4 into 11.7 2025-01-09 09:41:38 +02:00
my_libwrap.h Update FSF Address 2019-05-11 21:29:06 +03:00
my_list.h Update FSF Address 2019-05-11 21:29:06 +03:00
my_md5.h Merge branch '5.5' into 10.1 2019-05-11 22:19:05 +03:00
my_minidump.h MDEV-11499 mysqltest, Windows : improve diagnostics if server fails to shutdown 2021-09-24 11:49:28 +02:00
my_net.h MDEV-25602 get rid of __WIN__ in favor of standard _WIN32 2021-06-06 13:21:03 +02:00
my_nosys.h Update FSF Address 2019-05-11 21:29:06 +03:00
my_pthread.h Merge branch '11.4' into 11.8 2025-06-18 07:43:24 +02:00
my_rdtsc.h MDEV-34815 SIGILL error when executing mariadbd compiled for RISC-V with Clang 2024-12-05 02:36:25 +11:00
my_rnd.h remove dead code 2022-07-31 14:54:37 +02:00
my_service_manager.h MDEV-32567 Remove thr_alarm from server codebase - socket activation fix 2023-11-23 11:52:38 +11:00
my_stack_alloc.h MDEV-36412 Concerns compilation issue on community edition for x86_64 with X32 ABI 2025-04-19 11:03:43 +03:00
my_stacktrace.h MDEV-25602 get rid of __WIN__ in favor of standard _WIN32 2021-06-06 13:21:03 +02:00
my_sys.h Merge branch '11.8' into 12.0 2025-05-22 09:22:55 +02:00
my_time.h Merge branch '11.4' into 11.8 2025-06-18 07:43:24 +02:00
my_tracker.h Changing all cost calculation to be given in milliseconds 2023-02-02 23:54:45 +03:00
my_tree.h Merge 10.2 into 10.3 2019-05-14 17:18:46 +03:00
my_uctype.h Update FSF Address 2019-05-11 21:29:06 +03:00
my_user.h Merge 10.2 into 10.3 2019-05-14 17:18:46 +03:00
my_valgrind.h Added VALGRIND_YIELD to be able to abort from busy loops 2025-04-28 12:59:39 +03:00
my_virtual_mem.h MDEV-36780: InnoDB buffer pool reserves all assigned memory 2025-05-13 12:27:42 +03:00
my_xml.h Fix typos in C comments in miscellaneous files 2025-03-24 13:36:28 +11:00
myisam.h Merge 11.4 into 11.7 2024-12-02 17:51:17 +02:00
myisamchk.h MDEV-33751 Assertion `thd' failed in int temp_file_size_cb_func(tmp_file_tracking*, int) 2024-05-27 12:39:04 +02:00
myisammrg.h MDEV-31083 ASAN use-after-poison in myrg_attach_children 2023-05-23 09:16:36 +03:00
myisampack.h cleanup: remove unconditional #ifdef's 2024-11-05 14:00:47 -08:00
mysql.h fix error messages 2025-05-02 13:56:25 +02:00
mysql_com.h MDEV-33145 support for old-mode=OLD_FLUSH_STATUS 2024-05-27 12:39:03 +02:00
mysql_com_server.h Merge branch '5.5' into 10.1 2019-05-11 22:19:05 +03:00
mysql_embed.h Merge branch '10.3' into 10.4 2019-05-19 20:55:37 +02:00
mysql_time.h Extends 64 bit windows to support timestamps up to year 2106. 2024-05-27 12:39:02 +02:00
mysql_version.h.in Merge 10.3 into 10.4 2020-10-29 13:38:38 +02:00
mysqld_default_groups.h Fixed that mariadb-# binaries reads their corresponding entry from my.cnf 2019-07-18 15:32:22 +03:00
mysys_err.h MDEV-9101 Limit size of created disk temporary files and tables 2024-05-27 12:39:04 +02:00
no_valgrind_without_big.inc MDEV-31893 Valgrind reports issues in main.join_cache_notasan 2023-08-10 20:57:42 +02:00
pack.h Merge branch '10.2' into bb-10.2-connector-c-integ-subm 2016-09-21 12:54:56 +02:00
password.h Merge 10.2 into 10.3 2019-05-14 17:18:46 +03:00
pfs_file_provider.h perfschema compilation, test and misc fixes 2020-03-10 19:24:23 +01:00
pfs_idle_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_memory_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_metadata_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_socket_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_stage_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_statement_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_table_provider.h P_S 5.7.28 2020-03-10 19:24:22 +01:00
pfs_thread_provider.h MDEV-32537 Name threads to improve debugging experience and diagnostics. 2024-07-09 13:17:20 +02:00
pfs_transaction_provider.h cleanup: pass trxid by value 2020-03-10 19:24:23 +01:00
probes_mysql.d.base Update FSF Address 2019-05-11 21:29:06 +03:00
probes_mysql.h Update FSF Address 2019-05-11 21:29:06 +03:00
probes_mysql_nodtrace.h.in Merge branch '5.5' into 10.0 2016-02-15 22:50:59 +01:00
queues.h Merge 11.4 into 11.7 2024-12-02 17:51:17 +02:00
rijndael.h Update FSF Address 2019-05-11 21:29:06 +03:00
scope.h Merge branch '11.4' into 11.7 2025-02-06 16:46:36 +01:00
service_versions.h MDEV-34712 Add support to sha2 and pbkdf2 key derivation in file_key_management 2025-04-28 13:43:32 +10:00
source_revision.h.in SOURCE_REVISION should always be defined in source_revision.h 2017-11-01 13:20:32 +00:00
span.h Apply clang-tidy to remove empty constructors / destructors 2023-02-09 16:09:08 +02:00
sql_common.h Tag rest of my_vsnprintf users w/ ATTRIBUTE_FORMAT 2025-02-12 10:17:44 +01:00
ssl_compat.h Merge branch '10.6' into 10.9 2023-08-04 08:01:06 +02:00
sslopt-case.h client support for --ssl-fp and --ssl--fplist 2024-02-04 22:19:00 +01:00
sslopt-longopts.h MDEV-28908 Confusing documentation and help output for --ssl-verify-server-cert 2025-03-31 17:57:40 +02:00
sslopt-vars.h MDEV-32473 --disable-ssl doesn't disable it 2024-02-04 22:19:19 +01:00
t_ctype.h Update FSF Address 2019-05-11 21:29:06 +03:00
thr_lock.h MDEV-36425 Extend read_only to also block share locks and super user 2025-04-28 12:59:39 +03:00
thr_timer.h MDEV-16264 - prerequisite patch, periodic thr_timer 2019-11-15 16:50:22 +01:00
typelib.h cleanup: CREATE_TYPELIB_FOR() helper 2024-11-05 14:00:47 -08:00
violite.h MDEV-14091 Support password protected SSL key in server. 2025-04-19 14:04:10 +03:00
waiting_threads.h header typos 2022-12-20 08:55:48 +11:00
welcome_copyright_notice.h MDEV-30153 ad hoc client versions are confusing 2023-01-19 12:39:37 +01:00
wqueue.h Merge 10.2 into 10.3 2019-05-14 17:18:46 +03:00
wsrep.h Reduce compilation dependencies on wsrep_mysqld.h 2022-08-31 11:05:23 +03:00