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. MongosniffThis tool can monitor from the bottom to what commands are sent to MongoDB for execution, from which it can be analyzed: EXECUTE as root: $./mongosniff--source NET Lo It then monitors all packet requests to local mongodb with localhost listening on the default 27017 port.2.MongostatThis tool provides a quick view of the statistics field descriptions for a set of running
Use of MongoDB stored procedures and performance tuning Solutions Although MongoDB provides us with a lot of drivers, it is not convenient to use the mongodb shell. For example, the recently needed DBRef nested data must be CRUD. If the mog driver is used, it will be very tr
not specified in MongoDB and the MD5 value of 1–100,000,000 is treated as a normal field insert;c) in MySQL with 1–100,000,000 MD5 value of primary KEY, the data is inserted;d) primary KEY is not specifiedin MySQL and the MD5 value of 1–100,000,000 is considered a normal field insert.4. Analyze the insertion performance
of data is about 1 K. Remember that the method of this test is to generate 100 million data in memory before performing the insert operation. Fortunately, the memory of the test machine is large enough to save so much data. 3. Insert data into the database in the following four modes, and when each 1000 data is inserted, the time of the moment is written to a fixed file: A
MongoDB-level data Insert, Query, and Delete performance tests (without or without indexing) Let's take a look at the testing machine performance (64bit ): Performance_^ [root @: ~] # Grep"Model name"/Proc/cpuinfo | cut-f2-d: Intel (R) Xeon (R) CPU E5606 @ 2.13 GHz Intel (R) Xeon (R) CPU E5606 @ 2.13 GHz Intel
MySql performance tuning policy and mysql tuning policy This topic provides detailed parameter descriptions for my. cnf configuration. The sample configuration is as follows: # Cat my. cnf # MySQL client library initialization. [Client] Port = 3306 Socket =/tmp/mysql. sock Character-set-server = utf8 # The MySQL server [Mysqld] Init_connect = 'set na
Introduction: 2 database servers, one instance per server, one instance has one library, 2 databases fail each other, and the maximum memory is set to 50% of physical memory, but due to the increase in load caused by the memory shortage problem: In the previous 2000, the database does not respond to the system's memory pressure, So only set 50% to ensure memory balance is used, but 4. Sun will introduce new APIs to tune MySQL performance Profile: acc
Outline: I. Overview 2. What is performance tuning? (What) 3. Why performance optimization? (Why) 4. When do I need performance optimization? (When) 5. Where do I need performance tuning? (Where) 6. Who will perform
Performance Tuning overview: I. Overview 2. what is performance tuning? (What) 3. Why performance optimization? (Why) 4. When do I need performance optimization? (When) 5. where do I need per
Linux Performance Tuning Overview -What is performance tuning? (What)-Why performance optimization? (Why)-When do I need performance optimization? (When)-Where do I need performance
Note: This article is the third of our series of PHP performance analysis, click here to read PHP performance analysis first: Xhprof Xhgui Introduction, or PHP performance analysis second: In-depth study of Xhgui.In the first chapter of this series, we introduced Xhprof. In the second chapter, we studied the Xhgui UI, and now the last one, let's use Xhprof/xhgui
page of the By field, we can use the >= expression directly in the Where statement to select, which is called seek, rather than Fetch,seek's performance is much higher than fetch. string. as I said earlier, string manipulation has a very large nightmare on performance, so the data can be used in the case of numbers, such as: time, work number, etc. Full-Text search. do not use like things to do full-te
Article Source: http://www.cnblogs.com/dingjie08/archive/2009/11/10/1599929.htmlObjectiveRecently help friends to run the platform for Performance tuning, the effect is good, so write it out together to exchange. If the article has you feel wrong, or do not understand, please add QQ Group: 4656272, Welcome to correct and discuss together. (PS: Vulgar Humanities pen is poor, crossing please more magnanimous)
change the library-level lock to a document-level lock. Performance issues caused by library-level locks should be expected to be significantly improved. Scenario Four: Micro-shardingThe definition of a differentiator is the use of MongoDB's Shard technology, but multiple or all Shard Mongod run on the same server (the server can be a physical or virtual machine). Because of the existence of library-level locks and the fact that
ObjectiveIn the field of big data computing, Spark has become one of the increasingly popular and increasingly popular computing platforms. Spark's capabilities include offline batch processing in big data, SQL class processing, streaming/real-time computing, machine learning, graph computing, and many different types of computing operations, with a wide range of applications and prospects. In the mass reviews, many students have tried to use spark in various projects. Most students, including t
Recently it has been a tangle of performance analysis and tuning how to start with hardware first, or from code or database first. From the operating system (CPU scheduling, memory management, process scheduling, disk I/O), Network, Protocol (HTTP, TCP/IP), or from application code, database tuning, middleware configuration and so on.Single middleware also sub-we
that you can dramatically improve the performance of SQL statements with a few simple SQL tuning rules. -- Adjust Oracle Sorting: Sorting has a significant impact on Oracle performance as well. -- aligning Oracle's competition: Table and index parameter settings have a significant impact on the performance of upda
insertion: Insert member statistics that meet different criteria into a different table or table partitionPre-and post-process SQL merge for 1 SQL executions 6 Optimizing SQL Using Window functions Window functions: can perform flexible analysis and processing work Use partition by to open windows, order by sort You can specify the window range with rows Rich window-opening functions Optimization and Precautions: reasonabl
Nginx Performance Tuning Address: http://nginx.com/blog/tuning-nginx/ Tuning NGINX for Performance Nginx Performance Tuning NGINX is well known as a high
Address: http://nginx.com/blog/tuning-nginx/ Tuning nginx for performance Nginx Performance Tuning Nginx is well known as a high performance Load balancer, cache and web server, powering over 40% of the busiest websites in the wor
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