Tag:throughput

  • Pgboxer best practices: Series 2

    Time:2021-5-13

    Author: Wang Zhibin, a former PGCE of China, is an official certified lecturer of PostgreSQL and a specially invited gold medal lecturer of Pangu cloud classroom. The selection of connection pool must be supported by test data in order to better decide how to choose. Through the following test results, we can more intuitively see […]

  • How can spring boot applications improve service throughput?

    Time:2021-4-14

    I don’t know which comes first, accident or tomorrow. No crisis is the biggest crisis, to meet the status quo is the biggest trap. background Occasionally, there will be some slow requests in the production environment, which will lead to system performance degradation and throughput degradation. Here are several optimization suggestions. programme 1. Undertow replaces […]

  • Apache AB pressure measurement system

    Time:2021-2-18

    Note: this time you use PHP, try golang next time AB commandIs a tool to test your Apache HTTP server. You can use this tool to specify the number of requests sent to Apache in a unit time to see how your Apache and the machine work together. Installation command: yum -y install httpd-tools View […]

  • How to estimate capacity

    Time:2020-11-2

    With the growth of business, the daily traffic increases from 10W level to 100W level. At this time, capacity estimation is required. What kind of scenario needs capacity estimation? Qualitative growth of capacity Temporary operation activities New system launched Scene 1: When PM was going to do the double 11 event, the technical boss came […]

  • FPGA configuration using high speed SPI NOR Flash

    Time:2020-10-30

    NOR flash memory is widely used as FPGA configuration device. The application of FPGA in industrial, communication and automotive ADAS applications depends on the low latency and high data throughput characteristics of NOR flash. A good example of fast start-up time requirements is the camera system in the automotive environment. The speed shown on the […]

  • Apache AB pressure testing Linux

    Time:2020-10-16

    Note: PHP is used this time. Try golang next time AB commandIs a tool to test your Apache HTTP server. You can use this tool to specify the number of requests sent to Apache in a unit time to see how well your Apache and the machine work together. Installation command: yum -y install httpd-tools […]

  • How to select message middleware?

    Time:2020-8-3

    Here we choose some popular message middleware in the industry, such as ActiveMQ, rabbitmq, rocketmq, Kafka and other well-known middleware, and some relatively biased MQ are not within the scope of today’s discussion. The following is a summary and comparison of the above MQ from several different dimensions. I hope that after reading, we can […]

  • Hard core dry goods! Relationship among QPS, TPS, concurrent users and throughput

    Time:2020-7-29

    1、QPS QPS Queries Per SecondIs the query rate per second, yesOne serverThe corresponding number of queries per second is for a specific query serverWithin the specified timeA measure of how much traffic is processed, that is, the number of response requests per second, which is the maximum throughput capacity. 2、TPS TPS Transactions Per SecondThis is the number […]

  • Kafka real environment deployment plan (Reprinted)

    Time:2020-7-29

    Kafka real environment deployment planning 1. Selection of operating system Because Kafka server-side code is developed by Scala language, it belongs to the big data framework of the JVM system. At present, Linux, OS X and windows are the three most widely deployed operating systems. However, Linux has the largest number of deployed operating systems. […]

  • Don’t mistake people again – Performance Comparison of tomcat, undertow and jetty

    Time:2020-7-28

    In search and query on the Internet, we find that undertow is superior to Tomcat in terms of high concurrency performance, and various experimental evidences are provided to prove it. However, my private test results are inconsistent with most of the results on the Internet. Simple interface test    @GetMapping(“/test”)    publicStringtest() {     […]

  • JVM Performance Optimization — JVM parameter configuration, using JMeter simple test to explain parameter tuning

    Time:2020-7-15

    1、 JVM parameter configuration 1. Common parameter configuration -20: + printgc prints the relevant log every time the GC is triggered -20: + useserialgc serial recycle -20: + printgcdetails more detailed GC logs -Initial value of XMS heap -Xmx heap maximum available value -Maximum available value of XMN Cenozoic reactor -20: Survivorratio is used to […]

  • Benchmark the performance of Evoy, haproxy and nginx on kubernetes

    Time:2020-7-1

    In a typical kubernetes deployment, all traffic to the kubernetes service goes through an inress. Ingress proxies traffic from the Internet to back-end services, so the portal is on a critical path to performance. There are a variety of benchmarking methods and measuring results. The most common way to measure agent performance is probably raw […]