Shulou(Shulou.com)06/03 Report--

This article mainly introduces "how to speed up the crawling speed of the reptile IP". In the daily operation, I believe that many people have doubts about how to speed up the crawling speed of the reptile IP. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to speed up the crawling speed of the reptile IP". Next, please follow the editor to study!

1. reduce visits as much as possible.

Most crawler tasks need to wait for a response in the network request in order to minimize the network request, which can not only reduce the pressure on the target site and proxy server, but also improve efficiency.

2. Streamline the process and reduce duplication.

In the strict sense, most websites do not use a tree structure, but multi-cross networks. So from multiple entrances into the depth of the page will have a lot of repetition, generally based on the URL or ID to judge, turning the page does not need to turn the page. If you can get some data as one or more pages, select only one page.

3. Multithreading, the task blocked by IO is a large number of crawls, and multithreading concurrency effectively improves the overall speed.

It can improve the resource utilization of the program, make the program design more stringent and respond faster.

4. Disperse the work.

Although the above points have reached the limit, the number of crawlers per unit time is still not enough, and can not be completed on time within the specified time, so it can only be completed by more than one machine at a time, that is, distributed crawlers.

At this point, the study on "how to speed up the crawling speed of the crawler IP" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.