apache performance tuning linux

stress test. You need to modify the parameters in the "Console" menu for multiple tests, and finally find the best option for your Apache server. Click "Apply Change" to save the settings. Zend Performance Suite is a software package that greatly improves Apache running efficiency! It can enhance the server's data throughput, save server resource consumption, an

First of all. Request no more framed netfilter. Although it has some inherent performance loss, but please do not equate iptables and netfilter, assuming you want to catch the culprit, please say iptables, instead of saying netfilter!Iptables really is a weak explosion!Its ipt_do_table is actually one of the five main culprits, assuming that the rule exceeds 7000, then it is the first (the other culprit is the Nf_conntrack function, they are also netf

Transferred from: http://blog.csdn.net/liangxiaozhang/article/details/8363435Linux for each user, the system limits its maximum number of processes. To improve performance, the maximum number of processes per Linux user can be set according to the device resource situationYou can use Ulimit-a to display the current various user process limits.Below I set the maximum number of processes for a

First, ask for no more framing netfilter!. Although it has some inherent performance loss, but please do not equate iptables and netfilter, if you want to catch the culprit, please speak directly iptables, and not to say netfilter!Iptables really is a weak explosion! Its ipt_do_table is one of the five main culprits, if the rule exceeds 7000, then it is the first (the other culprit is the Nf_conntrack function, they are also netfilter hook). Iptables

The most popular service tools to build websites are Apache and IIS. So which performance is better between them? What is the best tool for us? I have also done some research on this issue recently. If it's based on a Linux platform, it's not necessarily Apache, because IIS can only run in Windows, and

All TCP/IP tuning parameters are in the/proc/sys/net/directory. For example, the following are some of the most important optimization parameters, which are followed by their meanings: 1./proc/sys/net/core/rmem_max-maximum TCP Data receiving buffer 2./proc/sys/net/core/wmem_max-maximum TCP data sending buffer 3, /proc/sys/net/ipv4/tcp_timestamps-timestamp in (refer to RFC 1323) add 12 bytes to the TCP Header. 4./proc/sys/net/ipv4/tcp_sack-select the r

the number of seconds accountedseconds for by this function and those listed above it.Self the number of seconds accountedseconds function alone. The major sort for thisListing.Calls the number of times this function is invoked, ifThis function is profiled, else blank.Self the average number of milliseconds spent in thisMs/call function per call, if the function is profiled,else blank.Total the average number of milliseconds spent in thisMs/call function and its descendents per call, if thisfun

See the recommendations of http://blog.phusion.nl/2013/03/12/tuning-phusion-passengers-concurrency-settings/ , It is intended to test the performance improvement of the passenger using the worker mpm.Experiment Settings:Subjects: Web service written by railsLab Tools: http://gatling.io/-based performance test code written by yourself in ScalaTwo experimental grou

server and increase support for an attribute, you need to understand what these settings parameters mean. It should be noted that, in addition to operating system performance tuning, the Apache server itself's default configuration is not optimized and most efficient, but to adapt to almost all kinds of operating systems, all kinds of hardware settings, multi-p

Brief introductionStress testing is an essential part of the performance tuning process. It is only when the server is under high pressure that it can truly reflect the problems exposed by the various settings.Performance testing tools are now most commonly found in the following categories: AB, Http_load, Webbench, siege.AB's Principle?? The AB command creates multiple concurrent access threads, simulating

Enterprises regard their websites as the key business of daily operation. To maintain optimal performance for key business functions, Linux administrators need a variety of tools to help them easily and effectively monitor Web servers. The following three open-source tools can help Linux administrators better understand their Web server features, potential securi

Brendan D. Gregg maintains a blueprint for Linux performance tuning tools, Linux performance Tools, with the appropriate analysis tools for each component of the Linux system at a glance.Linux performanceobservability:SAR, benchma

Why does Nginx have a much higher performance than Apache? This is thanks to Nginx's use of the latest epoll (Linux 2.6 kernel) and Kqueue (FreeBSD) network I/O models, while Apache uses the traditional select model.Currently, the Epoll network I/O model is used for squid and memcached that can withstand high concurren

optimization work, has been relatively stable, but recently due to the development of the website, the access volume is growing, the number of online users often appear, the load is too high, the performance drops sharply. with the consent of the webmasters of Shuangmu, it is suggested that nginx can be used to replace apache. after a long period of observation, nginx is stable and the system will not talk

Source: http://www.linuxfly.org/post/114/[Go] Understanding Linux PerformanceThe project often encounters the need to perform an efficiency analysis of the systems currently in operation, or to meet customer inquiries to optimize the efficiency of the system. More often, in the event of a system problem, you need to analyze the cause, locate the system failure or bottleneck, of course, it is best to resolve the fault together. But in fact, operating s

Why is the performance of nginx much higher than Apache? This is thanks to the Nginx's use of the latest epoll (Linux 2.6 kernel) and Kqueue (FreeBSD) network I/O models, while Apache uses the traditional select model. At present, the Epoll network I/O model is adopted in the squid and memcached which can withstand hi

Nginx is a small and efficient web server software in Linux. The developer Igor Sysoev is from Russia. nginx has been running on some large Russian websites for many years and is quite stable. Recently, it has become well-known in the United States. Another popular web server software is Lighttpd, which is well-known because it runs on the background of YouTube. Lighttpd features flash streaming and FastCGI support.ProgramIt is much faster than

often not enough, when the handle is finished, the system will frequently appear emfile error.As the saying goes: a slap does not sound, to complete C100K the goal, the server side and the client's close cooperation, the following will be the tuning of the two are introduced.Client 1: The number of file handles is limitedOn a Linux platform, whether you are writing a client program or a service-side progra

Poptest is the only training institute for developing Test and development engineers in China, aiming at the ability of the trainees to be competent in automated testing, performance testing and testing tools development. In Poptest's LoadRunner training, in order to improve the performance of students experience, add a lot of server optimization knowledge, for performa