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Centos/RHEL7 have the MAP_HUGE_SHIFT constant
defined in linux/mman.h which needed to get included.
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Add CRC32C code to mysys. The x86-64 implementation uses PCMULQDQ in addition to CRC32 instruction
after Intel whitepaper, and is ported from rocksdb code.
Optimized ARM and POWER CRC32 were already present in mysys.
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When MDEV-22669 introduced CRC-32C acceleration to IA-32,
it worked around a compiler bug by disabling the acceleration
on GCC 4 for IA-32 altogether, even though the compiler bug
only affects -fPIC builds that are targeting IA-32.
Let us extend the solution fe5dbfe723427a3606c41409626dc853f997e679
and define HAVE_CPUID_INSTRUCTION that allows us to implement
a necessary and sufficient work-around of the compiler bug.
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MDEV-22641 in commit dec3f8ca69e5eb19a4be7a175d3834874c4d880b
refactored a SIMD implementation of CRC-32 for the ISO 3309 polynomial
that uses the IA-32/AMD64 carry-less multiplication (pclmul)
instructions. The code was previously only available in Mariabackup;
it was changed to be a general replacement of the zlib crc32().
There exist AMD64 systems where CMAKE_SYSTEM_PROCESSOR matches
the pattern i[36]86 but not x86_64 or amd64. This would cause a
link failure, because mysys/checksum.c would basically assume that
the compiler support for instruction is always available on GCC-compatible
compilers on AMD64.
Furthermore, we were unnecessarily disabling the SIMD acceleration
for 32-bit executables.
Note: Until MDEV-22749 has been implemented, the PCLMUL instruction
will not be used on Microsoft Windows.
Closes: #1660
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Largely based on MySQL commit
https://github.com/mysql/mysql-server/commit/75271e51d60bce8683423b208cbb43b11ca6060e
MySQL Ref:
BUG#24566529: BACKPORT BUG#23575445 TO 5.6
(cut)
Also, the PTR_SANE macro which tries to check if a pointer
is invalid (used when printing pointer values in stack traces)
gave false negatives on OSX/FreeBSD. On these platforms we
now simply check if the pointer is non-null. This also removes
a sbrk() deprecation warning when building on OS X. (It was
before only disabled with building using XCode).
Removed execinfo path of MySQL patch that was already included.
sbrk doesn't exist on FreeBSD aarch64.
Removed HAVE_BSS_START based detection and replaced with __linux__
as it doesn't exist on OSX, Solaris or Windows. __bss_start
exists on mutiple Linux architectures.
Tested on FreeBSD and Linux x86_64. Being in FreeBSD ports for 2
years implies a good testing there on all FreeBSD architectures there
too. MySQL-8.0.21 code is functionally identical to original commit.
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HAVE_AIOWAIT had not been disabled and unused for at least 10 years.
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It isn't an "option" anymore.
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grooverdan/10.4-MDEV-18851-multiple-sized-large-page-support
MDEV-18851: multiple sized large page support (linux)
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- Delete variable HAVE_PTHREAD_CONDATTR_SETCLOCK and check
- Delete second HAVE_PTHREAD_KEY_DELETE
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Detecting the cpus based on sysconf of the online CPUs can significantly
over estimate the number of cpus available.
Wheither via numactl, cgroups, taskset, systemd constraints, docker
containers and probably other mechanisms, the number of threads mysqld
can be run on can be quite less.
As such we use the pthread_getaffinity_np function on Linux and FreeBSD
(identical API) to get the number of CPUs.
The number of CPUs is the default for the thread_pool_size and a too
high default will resulting in large memory usage and high context
switching overhead.
Closes PR #922
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The fix consists of three commits backported from 10.3:
1) Cleanup isnan() portability checks
(cherry picked from commit 7ffd7fe9627d1f750a3712aebb4503e5ae8aea8e)
2) Cleanup isinf() portability checks
Original problem reported by Wlad: re-compilation of 10.3 on top of 10.2
build would cache undefined HAVE_ISINF from 10.2, whereas it is expected
to be 1 in 10.3.
std::isinf() seem to be available on all supported platforms.
(cherry picked from commit bc469a0bdf85400f7a63834f5b7af1a513dcdec9)
3) Use std::isfinite in C++ code
This is addition to parent revision fixing build failures.
(cherry picked from commit 54999f4e75f42baca484ae436b382ca8817df1dd)
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This patch removes support for LinuxThreads.
It was superseded by NPTL in Linux 2.6 (2003).
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Related changes in the server code.
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Since 10.4 requires C++11 capable compiler, gcc sync builtins became
dead code. Remove relevant cmake checks and cleanup include files.
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On clang, use __builtin_readcyclecounter() when available.
Hinted by Sergey Vojtovich. (This may lead to runtime failure
on ARM systems. The hardware should be available on ARMv8 (AArch64),
but access to it may require special privileges.)
We remove support for the proprietary Sun Microsystems compiler,
and rely on clang or the __GNUC__ assembler syntax instead.
For now, we retain support for IA-64 (Itanium) and 32-bit SPARC,
even though those platforms are likely no longer widely used.
We remove support for clock_gettime(CLOCK_SGI_CYCLE),
because Silicon Graphics ceased supporting IRIX in December 2013.
This was the only cycle timer interface available for MIPS.
On PowerPC, we rely on the GCC 4.8 __builtin_ppc_get_timebase()
(or clang __builtin_readcyclecounter()), which should be equivalent
to the old assembler code on both 64-bit and 32-bit targets.
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We omit the work-around commit 0b7fa5a05deecaf52207f00bb02b5c6b460abb11
because it appears to be needed for CentOS 6 only,
which we no longer support.
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Starting with the Intel Skylake microarchitecture, the PAUSE
instruction latency is about 140 clock cycles instead of earlier 10.
On AMD processors, the latency could be 10 or 50 clock cycles,
depending on microarchitecture.
Because of this big range of latency, let us scale the loops around
the PAUSE instruction based on timing results at server startup.
my_cpu_relax_multiplier: New variable: How many times to invoke PAUSE
in a loop. Only defined for IA-32 and AMD64.
my_cpu_init(): Determine with RDTSC the time to run 16 PAUSE instructions
in two unrolled loops according, and based on the quicker of the two
runs, initialize my_cpu_relax_multiplier. This form of calibration was
suggested by Mikhail Sinyavin from Intel.
LF_BACKOFF(), ut_delay(): Use my_cpu_relax_multiplier when available.
ut_delay(): Define inline in my_cpu.h.
UT_COMPILER_BARRIER(): Remove. This does not seem to have any effect,
because in our ut_delay() implementation, no computations are being
performed inside the loop. The purpose of UT_COMPILER_BARRIER() was to
prohibit the compiler from reordering computations. It was not
emitting any code.
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- Add new submodule for WolfSSL
- Build and use wolfssl and wolfcrypt instead of yassl/taocrypt
- Use HAVE_WOLFSSL instead of HAVE_YASSL
- Increase MY_AES_CTX_SIZE, to avoid compile time asserts in my_crypt.cc
(sizeof(EVP_CIPHER_CTX) is larger on WolfSSL)
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ARMv8 (AArch64) CPUs implement the CRC32 extension which is implemented by inline assembly ,
so they can also benefit from hardware acceleration in IO-intensive workloads.
The patch optimizes crc32c calculate with the armv8 crypto instruction(Intrinsics) when available
rather than original linear crc instructions.
Change-Id: I05d36a64c726d910c47befad93390108f4e6567f
Signed-off-by: Yuqi Gu <yuqi.gu@arm.com>
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* Update wrong zip-code
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For tablespaces that do not reside on spinning storage, it does
not make sense to attempt to write nearby pages when writing out
dirty pages from the InnoDB buffer pool. It is actually detrimental
to performance and to the life span of flash ROM storage.
With this change, MariaDB will detect whether an InnoDB file resides
on solid-state storage. The detection has been implemented for Linux
and Microsoft Windows. For other systems, we will err on the safe side
and assume that files reside on SSD.
As part of this change, we will reduce the number of fstat() calls
when opening data files on POSIX systems and slightly clean up some
file I/O code.
FIXME: os_is_sparse_file_supported() on POSIX works in a destructive
manner. Thus, we can only invoke it when creating files, not when
opening them.
For diagnostics, we introduce the column ON_SSD to the table
INFORMATION_SCHEMA.INNODB_TABLESPACES_SCRUBBING. The table
INNODB_SYS_TABLESPACES might seem more appropriate, but its purpose
is to reflect the contents of the InnoDB system table SYS_TABLESPACES,
which we would like to remove at some point.
On Microsoft Windows, querying StorageDeviceSeekPenaltyProperty
sometimes returns ERROR_GEN_FAILURE instead of ERROR_INVALID_FUNCTION
or ERROR_NOT_SUPPORTED. We will silently ignore also this error,
and assume that the file does not reside on SSD.
On Linux, the detection will be based on the files
/sys/block/*/queue/rotational and /sys/block/*/dev.
Especially for USB storage, it is possible that
/sys/block/*/queue/rotational will wrongly report 1 instead of 0.
fil_node_t::on_ssd: Whether the InnoDB data file resides on
solid-state storage.
fil_system_t::ssd: Collection of Linux block devices that reside on
non-rotational storage.
fil_system_t::create(): Detect ssd on Linux based on the contents
of /sys/block/*/queue/rotational and /sys/block/*/dev.
fil_system_t::is_ssd(dev_t): Determine if a Linux block device is
non-rotational. Partitions will be identified with the containing
block device by assuming that the least significant 4 bits of the
minor number identify a partition, and that the "partition number"
of the entire device is 0.
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Temporarily disable a test for
commit 2175bfce3e9da8332f10ab0e0286dc93915533a2
because fixing it in 10.2 requires updating libmariadb.
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This is joint work with Oleksandr Byelkin.
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Disable LOAD DATA LOCAL INFILE suport by default and
auto-enable it for the duration of one query, if the query
string starts with the word "load". In all other cases the application
should enable LOAD DATA LOCAL INFILE support explicitly.
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SIGHUP causes debug info in the error log and reload of
logs/privileges/tables/etc. The server should only do it when
a user intentionally sends SUGHUP, not when a parent terminal gets
disconnected or something.
In particular, not ignoring kernel SIGHUP causes FLUSH PRIVILEGES
at some random point during non-systemd Debian upgrades (Debian
restarts mysqld, debian-start script runs mysql_upgrade in the background,
postinit script ends and kernel sends SIGHUP to all background processes
it has started). And during mysql_upgrade privilege tables aren't
necessarily ready to be reloaded.
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extra/mariabackup/fil_cur.cc:361:42: warning: format specifies type 'unsigned long' but the argument has type 'ib_int64_t' (aka 'long long') [-Wformat]
extra/mariabackup/fil_cur.cc:376:9: warning: format specifies type 'unsigned long' but the argument has type 'ib_int64_t' (aka 'long long') [-Wformat]
sql/handler.cc:6196:45: warning: format specifies type 'unsigned long' but the argument has type 'wsrep_trx_id_t' (aka 'unsigned long long') [-Wformat]
sql/log.cc:1681:16: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
sql/log.cc:1687:16: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
sql/wsrep_sst.cc:1388:86: warning: format specifies type 'long' but the argument has type 'wsrep_seqno_t' (aka 'long long') [-Wformat]
sql/wsrep_sst.cc:232:86: warning: format specifies type 'long' but the argument has type 'wsrep_seqno_t' (aka 'long long') [-Wformat]
storage/connect/filamdbf.cpp:450:47: warning: format specifies type 'short' but the argument has type 'int' [-Wformat]
storage/connect/filamdbf.cpp:970:47: warning: format specifies type 'short' but the argument has type 'int' [-Wformat]
storage/connect/inihandl.cpp:197:16: warning: address of array 'key->name' will always evaluate to 'true' [-Wpointer-bool-conversion]
storage/innobase/btr/btr0scrub.cc:151:17: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/innobase/buf/buf0buf.cc:5085:8: warning: nonnull parameter 'bpage' will evaluate to 'true' on first encounter [-Wpointer-bool-conversion]
storage/innobase/fil/fil0crypt.cc:2454:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/innobase/handler/ha_innodb.cc:18685:7: warning: format specifies type 'unsigned long' but the argument has type 'wsrep_trx_id_t' (aka 'unsigned long long') [-Wformat]
storage/innobase/row/row0mysql.cc:3319:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/innobase/row/row0mysql.cc:3327:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/maria/ma_norec.c:35:10: warning: implicit conversion from 'int' to 'my_bool' (aka 'char') changes value from 131 to -125 [-Wconstant-conversion]
storage/maria/ma_norec.c:42:10: warning: implicit conversion from 'int' to 'my_bool' (aka 'char') changes value from 131 to -125 [-Wconstant-conversion]
storage/maria/ma_test2.c:1009:12: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
storage/maria/ma_test2.c:1010:12: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
storage/mroonga/ha_mroonga.cpp:9189:44: warning: use of logical '&&' with constant operand [-Wconstant-logical-operand]
storage/mroonga/vendor/groonga/lib/expr.c:4987:22: warning: comparison of constant -1 with expression of type 'grn_operator' is always false [-Wtautological-constant-out-of-range-compare]
storage/xtradb/btr/btr0scrub.cc:151:17: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/xtradb/buf/buf0buf.cc:5047:8: warning: nonnull parameter 'bpage' will evaluate to 'true' on first encounter [-Wpointer-bool-conversion]
storage/xtradb/fil/fil0crypt.cc:2454:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/xtradb/row/row0mysql.cc:3324:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
storage/xtradb/row/row0mysql.cc:3332:5: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
unittest/sql/mf_iocache-t.cc:120:35: warning: format specifies type 'unsigned long' but the argument has type 'int' [-Wformat]
unittest/sql/mf_iocache-t.cc:96:35: note: expanded from macro 'INFO_TAIL'
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