#replicate- do -db = xxx #不需要同步的表 replicate-wild-ignore-table=mydb.sp_counter #不需要同步的库 replicate-ignore-db = mysql,information_schema,performance_schema binlog_cache_size = 4M max_binlog_cache_size = 8M max_binlog_size = 1024M log_slave_updates =1 #binlog_format = row...
After the insert operation completes, convert the table to logged so that the insert is durable. Some customer workloads have experienced approximately a 15 percent to 20 percent performance improvement when unlogged tables were used. Next steps Review your workload for uses of transient data and ...
这些可以配置起来使用,详细请参考 postgresql-9.2-A4.pdf 中的 Chapter 14. Performance Tips。 One might need to insert a large amount of data when first populating a database. This section contains some suggestions on how to make this process as efficient as possible. 14.4.1. Disable Autocommit ...
sysbench是一款开源的多线程性能压测工具,可以对CPU、内存、线程、IO、数据库等进行性能压力测试。 2.2 安装 源码安装 [root]# git clone https://github.com/akopytov/sysbench.git[root]# cd sysbench[root]# sh autogen.sh[root]# ./configure --with-pgsql --with-pgsql-includes=/usr/local/pgsql/in...
Disabling Triggers –Show you how to turn off triggers of a table to avoid performance overhead when performing bulk data loading. Event Triggers –Learn how to use event triggers to monitor and control database structure changes. BEFORE INSERT Trigger –Use a before-insert trigger to automati...
Keeping it below 64 bytes (the most common CPU * cache line size) is fairly important for performance. */ typedef struct BufferDesc { BufferTag tag; /* ID of page contained in buffer */ int buf_id; /* buffer's index number (from 0) */ /* state of the tag, containing flags, ...
Improved the performance of bulk load, parsing of T-SQL and prepared statements. Added a new system stored procedure sp_babelfish_volatility that you can use to set the volatility of user-defined functions to improve index use when the functions are used as part of query predicates. Fixed an...
Hello, I tried out BulkInsertOrUpdate extensions to improve performance of one of my projects. Unfortunately I failed with my first small example and now I wanted to ask, if I'm doing something wrong?! My Versions <PackageReference Inclu...
direct_io,Currently this feature reduces performance, and is intended for developer testing only.,PostgreSQL 目前 double buffer 的机制,会导致性能不稳定,尤其是当操作系统在做 direct memory reclaim 的时候,虽然目前 direct_io 还没有直接向用户开放,但是你可以使用 debug_io_direct 参数进行测试, The further...
INSERTINTOProduct(Name,Description)VALUES('Entity Framework Extensions','Use Entity Framework Extensions to extend your DbContext with high-performance bulk operations.'); 9 INSERTINTOProduct(Name,Description)VALUES('Dapper Plus','Use Dapper Plus ...