elasticsearch performance test

Concurrency Performance test 1 Purpose of testing According to the test results of Apache and Nginx concurrency performance, the advantages and disadvantages of concurrency model are analyzed. Performance evaluation items include: RPS (number of processing requests per secon

1. test whether the server can accept the simultaneous online operations of 0.1 million users If you use the IIS service as an application server, the maximum number of concurrent jobs per server cannot reach 0.1 million. You need to use a cluster and use Server Load balancer to achieve this. If an application server such as Websphere is used, the maximum number of concurrent jobs that a single server can afford can reach 0.1 million, but the clus

Iperf is a network performance testing tool. Iperf can test TCP and UDP bandwidth quality. The Iperf can measure the maximum TCP bandwidth with multiple parameters and UDP characteristics. Iperf can report bandwidth, delay jitter, and packet loss. Using Iperf, this feature can be used to test the performance of some ne

difficulty?Personal feel difficult in the scene design. I do not practice much, here is a simple talk about design ideas.Prerequisites: Ensure a clean test environmentFirst type: Test a relatively independent feature in the appThis is generally to ensure that other conditions are unchanged, repeat the operation of this single function, and then analyze the data.Example 1:app correlation energy state for fi

In zookeeper, the number of nodes is theoretically limited by memory, but the number of subnodes under a node is limited by the size of data (number of znodes) The watch mechanism of zookeeper is used for active notifications of zookeeper when data is changed. Watch can be appended to each node. If an application has 10 million nodes, there may be 10 million watches (or even more) in zookeeper ). Every time the zookeeper completes the rewrite node operation, it checks whether there is a correspo

Performance ASP dynamically generated content in what way to output the most efficient? What is the best way to extract a database recordset? This article tests common problems with nearly 20 such ASP developments, and the time the test tools show tells us that the questions that are often taken for granted are not only noteworthy, but also unexpected secrets hidden. Original source: http://www.asptoday.

This article mainly introduces how to use XHGui to test the PHP performance. The example demonstrates the Ubuntu-based operating system. if you need it, refer to Profiling as a technology used to observe the program performance, it is very suitable for discovering program bottlenecks or resources that are insufficient. Profiling can go deep into the program to sh

Tutorial on using XHGui to test PHP performance Profiling is a technique used to observe program performance and is very suitable for discovering program bottlenecks or tight resources. Profiling can go deep into the program to show the performance of each part of the code in the request processing process. It

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 MySQL and MongoDB based on the generated time file records.5. Further, on the basis of the above four kinds of databases,

Webbench is a well-known test tool for website stress, developed by Lionbridge. Official homepage: http://home.tiscali.cz /~ In the O M work of cz210552/webbench.html, website stress and performance testing are very important tasks. For example, before a website goes online, the quality of data indicators will directly affect the user experience. However, it is stored in stress and

The performance test model is discussed as follows:As the traffic per unit time increases, the pressure on the tested system increases, server resources are constantly consumed, and TPS values change due to these factors, and comply with the general rules. The following is a diagram of the performance test pressure cha

NPTL becomes the GLIBC line threading, how its performance is subject to a lot of people's attention. In this paper, the performance of NPTL and linuxthreads is compared, and the effects of hyper-threading and kernel-preemption on threading performance are comprehensively evaluated. First, the preface In the Linux 2.6.x kernel, the improvement of scheduling

balancing9.NDB (3NODE, 3 redundancy), 100 threads, 100 connection pools, using MySQL proxy10.NDB (3NODE, 3 redundancy), 1000 threads, 1000 connection pools, using MySQL proxy Test Results Summary: • The horizontal axis is the data quantity, the ordinate is the time, the unit millisecond. The performance of the machine used to bubble test cases is more than o

1. To elaborate In the Java map Traversal way, many articles are recommended to use EntrySet, think it is more efficient than keyset. The reason: The EntrySet method gets all the keys and value sets at a time, and keyset gets only a set of keys, which, for each key, goes to the map to find an extra value, which reduces overall efficiency. What about the actual situation? To understand the real difference in traversal performance, including the diffe

When selecting a vswitch, we are most concerned about its performance and whether it can meet our needs. Here we will teach you how to test the performance of a Gigabit Switch and hope to help you. As the core connection device of an enterprise network, a Gigabit Switch provides the primary performance standard to spee

Performance Tests on layer-2 and layer-3 vswitches with 24 ports and all-gigabit vswitches have encountered many problems recently. Experts have said that QoS ensures port congestion, high-priority data is processed first. It makes sense to improve the utilization of 24 fully-gigabit switches with insufficient bandwidth. Three-tier competition Layer 3 24-port full Gigabit Switch testing includes OmniSwitch 6800-24, annett's AT-9924T/4SP, D-Link DGS-33