Tag：performance
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Time：2020-2-16
Original address: Liang Guizhao’s blog Blog address: http://blog.720ui.com Today, we will discuss an interesting topic: how much data of a single MySQL table needs to be divided into databases and tables? Some say 20 million lines, others say 5 million lines. So, what do you think is the appropriate value? Once in China’s Internet technology […]
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Time：2020-2-16
Author: Wang Shaoxing (Dasha) This article is from Flink China meetup on August 11, 2018.Wang Shaozhen, Hua Ming “Dasha”, Ph.D. in Computer Engineering, University of California, San Diego, Apache Flink committer. Currently, I am in charge of Flink platform and ecological work in Ali. The content of this paper is as follows: Core technology of […]
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Time：2020-2-11
Introduction In the comprehensive query of test questions, it is used as usualPredicateWhen splicing the predicates, we met with a difficult problem. The requirement is to query the test questions. In addition to other general conditions such as professional courses and models, it is also necessary to query the test questions that have not been […]
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Time：2020-2-9
brief introduction DBMS? Resource? Manager.calibrate? IO PL / SQL procedure is provided in the Oracle 11g database to test the I / O performance of the current database instance.The parameters of DBMS? Resource? Manager.calibrate? IO are as follows: DBMS_RESOURCE_MANAGER.CALIBRATE_IO ( num_physical_disks IN PLS_INTEGER DEFAULT 1, max_latency IN PLS_INTEGER DEFAULT 20, max_iops OUT PLS_INTEGER, max_mbps OUT […]
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Time：2020-2-7
On the first day of the 2016 qcon conference, Zhuang Zhuoren, senior director of Alibaba, head of Taobao mobile platform and Alibaba Baichuan, announced that weex, a high-performance dynamic solution for mobile terminals, will be open-source in June. As soon as the news came out, the crowd was furious. The program apes and siege lions […]
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Time：2020-2-6
At qcon in April 2016, Zhuang zhuoran (Hua mingnantian), senior director of Alibaba, head of Taobao mobile platform and new business business business division, and Alibaba Baichuan, announced that weex, the cross platform development framework of Alibaba mobile, began internal testing and will be open-source in June. On the second day of qcon, Ali technical […]
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Time：2020-2-6
(Note: original link https://mp.weixin.qq.com/s/b8…) Author: sun Mengyao Overview: compare the performance of Flink, a distributed real-time computing framework, with storm to provide data reference for real-time computing platform and business. 1. background Apache Flink and Apache storm are two widely used distributed real-time computing frameworks in the industry. Among them, Apache storm (hereinafter referred to […]
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Time：2020-2-5
A subversive mobile development mode, an ingenious cross platform mobile development tool, and a productivity liberator weex in the post app era. Aiming at the pain points of frequent release and multi-terminal R & D of APP native development, the page stability and performance experience of H5 development, a set of lightweight cross platform development […]
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Time：2020-2-5
At present, quite a number of companies will use oracle. When doing performance tests, it is very important to monitor the database. Here, I will introduce how to generate the AWR monitoring report that comes with Oracle, and the content analysis of the specific report will be placed in the subsequent blog. In the introductory […]
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Time：2020-2-1
Alibaba cloud is the No. 1 in the domestic industry in the competition for the cloud computing market. It has a great reputation. However, I’m a little glad that I didn’t choose Alibaba cloud after the recent it house incident. Tencent cloud computing is the second largest in the industry, and it has Tencent as […]
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Time：2020-1-30
In our normal development work, the development time is very tight when the requirements are set, so we will seize the time to develop and complete the requirements. In the process of rapid development, there will be some performance problems more or less. After the development task is completed, we will carry outperformance optimization。 Now […]
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Time：2020-1-30
What is sofajraft? Sofajraft is a production level high-performance Java implementation based on raft consistency algorithm, which supports multi-raft-group and is suitable for scenarios with high load and low latency. With sofajraft, you can focus on your business area, and sofajraft is responsible for all the technical challenges related to raft. And sofajraft is very […]
