How much performance improvement does php7.1 have over php7.0?

How much performance improvement does php7.1 have over php7.0? Are there any relevant benchmark tests?

PHP中文网 2017-06-05 11:07:26 0  2  793

Suggestions for the next version of laravel

Who can write to the boss of laravel and ask him to pay attention to improving performance when upgrading the software. Now laravel's ab -c100 -n100 runs hello world on 1g linux, and can only run request per second: 30-50. Even if I change to php7 It's also lower. And php7 is now focusing on improvi...

高洛峰 2017-05-16 16:54:59 0  4  496

javascript - Does immutable work with react to improve performance?

Wouldn’t it be enough to simply compare it with PureComponent? I think it’s rare that the state reference changes but the actual value does not change.

学习ing 2017-07-05 10:38:52 0  3  898

objective-c - 聊天类app UITableView 一秒接受到1000条信息 reloadData怎么提高性能

聊天类app UITableView 比如一秒接受到1000条信息 ，reloadData怎么提高性能？

给我你的怀抱 2017-04-24 16:00:53 0  1  863

php - How to understand the memory fragmentation mentioned in C language programming? Why should you avoid him as much as possible?

The memory is not completely random read and write, it is a different physical medium than the mechanical hard disk, so why does the presence of memory fragments in the memory affect the performance? What exactly does this memory fragmentation refer to?

滿天的星座 2017-06-24 09:42:23 0  3  942

How to defragment the mongodb database without downtime?

After I deleted a large amount of redundant data in mongo, I found that the memory and files did not shrink. They still occupied a lot of memory and hard disk, and the performance did not change much. How to defragment mongodb?

習慣沉默 2017-05-02 09:22:51 0  1  766

Mongodb optimization?

The current scenario is: the performance of the machine is that the CPU is very nb. I forgot the model number of i7. nb means that there are very few CPU operations during querying. View it through htop. But the memory is not good, it is only 8g, and the memory will definitely be increased in the fu...

黄舟 2017-05-17 10:02:32 0  2  847

Which equality operator (== vs. ===) should be used in JavaScript comparisons?

I'm using JSLint to browse JavaScript and it returns many suggestions to replace == (two equal signs) with === (three equal signs) when doing things like comparing idSele_UNVEHtype.value.length==0 inside an if statement etc. during operation. Is there a performance advantage to replacing == with ===...

P粉023650014 2023-08-23 12:29:52 0  2  598

How to create an index for the database in PHPstudy

In order to improve SQL performance, indexes can be created on the server; but how to create indexes for the database using the PHPSTUDY tool? Ask for specific details of the process.

owen 2017-09-27 10:03:00 0  3  1396

缓存 - 关于redis持久化？

有提过一个问题/q/1010000004340655?_ea=575030，回答的少没太能明白。我重新描述下，有的朋友说内存满了，旧数据会删除，硬盘上的也自动没了，如果这样的逻辑来说，他并不是持久化啊？比...

滿天的星座 2017-04-24 16:00:20 0  1  794

mongodb - [Initiative] Suggestions on problem description

In order to facilitate communication and improve efficiency, it is recommended that the problem description include the following content: 1. Problem background description 1) What are you doing using mongodb: self-study/trial/project description 2) Mongodb version information, whether replica set i...

PHP中文网 2017-05-02 09:23:50 0  1  576

javascript - How to replace scrollview with flatlist?

Using scrollview means that each block on the page is different in length. I want to improve performance and use flatlist instead. Currently, all views are added to an array. How can I make flatlist load in order? After writing the code for a long time, I still couldn’t figure out how to implement i...

阿神 2017-05-31 10:37:17 0  1  651

javascript - As a beginner in programming, should I use an editor to copy the source code of jQuery or thinkphp?

Beginners in programming, do you want to use an editor to copy the source code of the jQuery library or thinkphp framework? To improve your programming abilities and ideas? I remember seeing a person on Zhihu who did the same thing. Now look for that answer. Not here. Can the experts tell me how eff...

高洛峰 2017-06-05 11:07:36 0  3  607

mongodb covering index not working?

I wanted to try using mongodb covering index to improve query performance, but it didn't work. The code is as follows. The following figure shows the query statement index as follows. Query analysis From the query analysis, we can see that mongodb still queries specific document information, and doe...

阿神 2017-05-02 09:26:38 0  1  769

windows上使用docker来构建php mysql环境性能上和使用vagrant管理虚拟机的环境有提高吗？

主要的问题如题。 我现在的电脑是部署了vagrant来管理的一个php开发环境的box。最近想使用docker来进行部署php开发环境。原因是docker消耗的资源更少，性能更好。但是了解了一下windows(win10家庭版)下部署docker...

PHP中文网 2017-04-27 09:01:56 0  0  851

Developed a framework QueryPHP, released in December this year

QueryPHP v1.0.0-beta.5, this version mainly improves ORM and optimizes a lot of details. About QueryPHPQueryPHP is a modern, high-performance PHP progressive coroutine framework. We are still mainly oriented to traditional PHP-FPM scenarios, with the historical mission of engineering user experience...

小牛仔 2019-09-10 11:48:35 0  0  1107

How should I choose a GPU server?

Currently, GPU servers are mainly used in different scenarios such as scientific computing and video encoding and decoding. It can provide applications with extraordinary accelerated computing capabilities and can offload application computing-intensive workloads to the GPU. From a user perspective,...

七秒 2021-10-25 12:24:31 0  3  1206

Some pitfalls encountered when using PHPStudy

I have been using the phpStudy integrated environment for some time, and I have been upgrading it from the 2016 version to the 2018 version. First of all, I would like to thank the software author for providing such a convenient and fast tool. The reason why we record some problems encountered durin...

LoAcer 2018-10-01 08:33:14 1  0  3806

How can I allow only one element to be selected in my click function? (Pure JS)

I'm creating a quiz app that pulls data from an API, builds a series of questions, and then loads a different number of "answer elements" on the quiz page each time, depending on which question is randomly selected from the array. Below is the creation Features a series of clickable "...

P粉345302753 2024-01-29 14:08:19 0  1  479