ssd optimization tool

can be followed by parameters: All or cpu,block io,page faults and so on.You can also query directly in the Information_schema.profiling database table:Select State,sum (Duration) as Total_r,round (100*sum (Duration)/(select SUM (duration) from Information_ schema.profiling where [email protected]_id), 2) as Pct_r,count (*) as Calls,sum (duration)/count (*) as "R/call" from inform ation_schema.profiling where [email protected]_id GROUP BY state ORDER by Total_r desc;Finally, turn off set profi

Tags: blog ar sp div art C on logThe Awrdd is used for a comparison of two awr snapshots to achieve performance at different times of the year.Run the following statement for example to get AWRDD:@?/rdbms/admin/awrddrpt.sql2025 23 February 07:12 12026 23 February 12027 23 February All 12028 23 February 10:00am 12029 23 February 11:24 12030 23 February 12031 23 February 2014 11:26 12032 23 February 11:31 12033 23 February 11:31 12034 23 February 11:41

When JQuery 1.5 was released, John Resig said that the code optimizer used to switch from Google closure to Uglifyjs, the new tool has a very satisfying compression effect. UGLIFYJS is a server-side node.js compression program. I tested the compression rate is really high. So it is worth writing an article to recommend under. You can also try the online version of uglifyjs:http://sweet.fengyin.name/ If you are interested in UGLIFYJS can be installed

The previous paragraph took over an optimization project, the requirement is to the company's existing 1W multiple tables indexed optimization, perfect existing, eliminate invalid index. In view of the serious shortage of manpower (at that time, the resources of two and a half people), the idea of manually changing libraries was discouraged. The current program structure is not allowed to engage in revoluti

Tags: file http img Local image HTTPS student engine MSSThe recent project to do thousands of students to face recognition record (currently about 630000 lines) query the last record, it is conceivable that the performance of this piece is a problem. As a shen, get to SQL Server Profiler and Database Engine Tuning Advisor These two jobs are QI.Start to install force ...First, a SQL statement that performs less efficientlySave trace files from SQL Server Profiler to LocalOpen the Database

Performance optimization uses the instruments leaks tool to detect memory leaks. Memory leaks, that is, after the memory is allocated and used, even if the memory is no longer in use, has not been released, resulting in the use of other objects can not be used. In Arc memory management mode, the resulting memory leaks are as follows: (1) animation effect generated by the infinite loop (2) Strong referen

Tags: blog http io os ar for SP CTI onPlaceholderHttps://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=2082062510193540id=1366133.1_ afrwindowmode=0_adf.ctrl-state=rru77dj7v_139Note:1417774.1-faq:sql Health Check (SQLHC) Frequently asked QuestionsNOTE:224270.1-TRCANLZR (TRCA): sql_trace/event 10046 TRACE File analyzer-tool for interpreting Raw SQL tracesNote:1627387.1-how to determine the sql_id for a SQL StatementNote:1455583.1-sql Tuning H

Tags: sqladvisor1. Cloning code#cd/usr/local/src/#git Clone Https://github.com/Meituan-Dianping/SQLAdvisor.git2. Installing dependent Packages#yum install-y make CMake libaio-devel libffi-devel glib2 glib2-devel Bison gcc gcc-c++3. When compiling the Sqladvisor, the perconaserverclient_r is dependent, so the percona-server-shared-56 needs to be installed. There may be a need to configure soft links such as:#cd/usr/lib64/#ln-S libperconaserverclient_r.so.18 libperconaserverclient_r.so4. Install t

Tags: DBName libaio arc lib64 Complete official conf install HTTPSNative installation package path: D:\share\src\linux-mysql\sqlAdvisor\1. Cloning codegit clone https://github.com/Meituan-Dianping/SQLAdvisor.git2. Installation dependenciesYum install-y cmake libaio-devel libffi-devel glib2 glib2-devel Bison3. Installing Percona56Yum Install Http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm-yYum Install Percona-server-shared-56-y4. When compiling the S