redis lua performance

precompiled compiler can save all local variables in registers. The benefit of this is that accessing local variables can be very fast. For example, if A and B are local variables, the statement Copy Code code as follows: A = a + b Only one instruction will be generated: Copy Code code as follows: ADD 0 0 1 (Suppose A and B correspond to 0 and 1 respectively in registers). In contrast, if both A and B are global variables, then this code will become

Luajit optimizes Lua in many aspects and optimizes many library functions provided by Lua. Optimization details: http://wiki.luajit.org/NYI Wiki: http://wiki.luajit.org/Home Lua optimization details: 1. Frequently used library functions are called using the local method. Note that only one call does not work. --thisisthelowestmethodstring.rep()--thisisabetterwa

single node to be used. You can also do the finest granularity, and then use Redis to lock, which reduces the likelihood of thread blocking. Summarize: Either use blocking to schedule the thread, You can either implement a reactor pattern that is similar to NIO in a distributed environment to dispatch. Ensure first-in, first-out, even if some slow state, not first come to the contrary, causing poor user experience. In-depth understanding of the us

Redis Performance Tuning: Save the effect of SNAPSHOT on performance, redissnapshot Some time ago, the Development Environment reported that access to the Redis server was very slow, and each request took several seconds. 2 ~ This will happen again in three days. I checked the Linux

Always want to do the development of language performance comparison, just have time to do a reference to everyone,Compiled classes: C + + and Java are doing fineScript class: TCC scripts run C language dynamically, performance is much faster than other scripts ...Want to play TCC classmate Download test package, TCC Directory modified script.c, run TccTest1.exe can see the effect of modification, no need t

Redis Foundation, advanced features and performance tuning Kelgon attention 2017.02.28 16:22 words 12597 read 16333 comments 5 like 154 appreciate 2 This paper will start from the basic characteristics of redis, through the description of the REDIS data structure and the main command of the

Some time ago, the Development Environment reported that access to the redis server was very slow, and each request took several seconds. 2 ~ This will happen again in three days. I checked the Linux performance and there is no problem. Pass # Redis-cli -- latency It is found that accessing redis is really slow. It tak

interfaceRegisterfun_getinstance (EXT)Return Ext,ext.supperEnd---Inheriting object instances[Email protected] #table Ext instance of current object[email protected] An instance #table base base classfunction Inheritance (ext,base)--Assert (False, "call this function can only be accessed through supper, if how much inheritance, only the last inheritance will take effect")return Inheritancea (ext or {},base, "__supper")End---inherit from model file[Email protected] #table Ext instance of current

First of all, I use the situation: The first used memcache, a server-side cache of key-value pairs, used to store some commonly used data that is not very large, but that requires rapid response Then, in another place, Redis is used, and then the next Redis is studied. A look, shows that they installed the PHP extension, because there is a server on the Redis s

Tags: Zabbix monitoringZabbix Monitoring Redishttp://www.21yunwei.com/archives/4195Zabbix monitoring MySQL Performancehttp://www.ttlsa.com/zabbix/zabbix-monitor-mysql/Zabbix monitoring MySQL loading stateHttp://www.linuxidc.com/Linux/2016-04/130436.htmZabbix Monitoring PHP-FPM Performance statushttp://www.ttlsa.com/zabbix/zabbix-monitor-php-fpm-status/This article is from "YHT's operations Notes" blog, please make sure to keep this source http://yht19

Redis's performance fantasies and brutal realities2011, the choice of Redis as the primary memory data storage, the main attraction to me is that it provides a variety of basic data structure can be very convenient to achieve business needs. On the other hand, it is more concerned about whether its performance is sufficient to support, after all,

2011, the choice of Redis as the primary memory data storage, the main attraction to me is that it provides a variety of basic data structure can be very convenient to achieve business needs. On the other hand, it is more concerned about whether its performance is sufficient to support, after all, Redis is a relatively new open source products. But the

Cluster technology is an important means of building high-performance Web site architecture, Imagine that the site under high concurrency access pressure, but also need to query from the massive data to meet the conditions of the data, and rapid response, we must think of the data is sliced, the data according to some rules into a number of different server nodes, To reduce the pressure on a single-node server.In the previous article we talked about R

Redis performance test Redis performance testing is achieved by executing multiple commands at the same time. Redis performance testing is mainly implemented through redis-benchmark in

In the previous article we introduced the differences between Redis and Couchbase and show their respective strengths (please poke the blue bold font: Couchbase vs Redis, which one is better. ）。 This article will provide developers with the most real and powerful data support, so that technology selection more objective, so that the cluster expansion is no longer blind, in the predictable business scale, so

as follows: 1) create a redisContext 2) run the command through redisContext 3) obtain the required data from the returned redisReply. The Code is as follows: redisContext * c = redisConnect((char *)"192.168.150.135",6379); const char * pData = "this is a test"; redisReply *reply1 = (redisReply *)redisCommand(c,"SET 100 %s",pData); freeReplyObject(reply1); redisReply *reply2 = (redisReply *)redisCommand(c,"GET 100");Printf ("% s \ n", reply2-> str ); FreeReplyObject (reply2 ); Is it very simp

127.0.0.1:9001:ok Connecting to Node 127.0.0.1:9002:ok Connecting to Node 127.0.0.1:9003:ok >>> sending CLUSTER forget messages to the CLUSTER ... >>> SHUTDOWN the node. Zhaoguihuadediannao:src zhaogh$./redis-cli-p 9003 Could not connect to Redis at 127.0.0.1:9003:connection refused Not connected> Very good, it ' s very good. The previous article said that the C # client is not yet well supported for