Before purchasing a VPS, how to test whether the VPS is suitable for you [Basic Tutorial]

There are many reasons why we buy vps. The mainstream ones are 55 and 55 sites, and they are also used as download machines or tests. But in general, 55 and 55 sites account for the majority. This article will use 55 and 55 sites respectively. Let’s talk about how to test whether the VPS can meet your needs before purchasing it.

Generally speaking, 55s for personal use focus more on the network and do not require the performance of the machine itself, while 55s for commercial use have certain requirements for memory and CPU. Commercial 55 depends on its size. It is generally recommended to start with 512M and cooperate with a certain amount of Swap. For personal use, if you do not install acceleration tools, 64MB of memory is enough. If you install it, it is recommended to start with 256MB.

When building a website, it also depends on its traffic and scale. It is recommended to start with 512M memory and a hard disk IO of no less than 5MB per second. However, if the traffic is large, the higher the hard disk IO, the better. A few hundred MB per second is not necessarily necessary. enough. If the traffic is large enough, the database needs to be cached to ensure query speed. If your database is 1G in size and cached entirely, it will cost 1G in memory alone, not counting the memory consumed by other programs. This At this time, it is necessary to use as much memory as possible. CPU is also very important for building a website. A good CPU will have much less memory overhead. For websites with large traffic and processing a lot of data, it is recommended to choose a better or larger number of CPU hosts. If the traffic is small, this will not happen. It's necessary.

In terms of configuration, since there is no way to test it before purchasing, there is not much we can refer to. Let’s mainly talk about network convenience.

For all VPS we share, we will try our best to write down the IP address, download link, and LG address that we know. The purpose is to allow everyone to test it better. So how to test it? Let’s analyze them one by one.

Let’s start with IP

For example, take a random Phoenix IP: 173.213.69.188. Generally speaking, we look at ping and route tracing for IP.

Generally, we will first look at the local ping. If you are using a Windows operating system, you can enter: ping 173.213.69.188 -t at the command prompt to perform a long-term ping test. It is generally recommended to test for more than 10 minutes, and then terminate with Ctrl+c The test probably looks like the following

Generally speaking, the less loss, the better, the lower the ping value, the better. The closer the longest and shortest ping are, the better. Like the one above, the ping value is very good, but the packet loss is too high. Excessive packet loss will affect the opening speed of our 55 websites.

In addition to local ping, we also need to test ping across the country. These two URLs can be tested: http://ping.chinaz.com/, http://www.ipip.net/ping.php. You can clearly see the ping value of vps in various regions across the country. It is recommended to test several times at different times every day.

Then route tracing, route tracing is usually used to detect lines. We often hear that routes around the United States, Europe, and CN2 are all found through route tracing. If one day, your vps suddenly slows down, it is likely that the routing has changed. Route tracing can be tested through the following two URLs: http://www.ipip.net/traceroute.php and http://www.webkaka.com/Tracert.aspx. You can clearly see the direction of the line and the routing information it passes through. By checking the routing information, we can know what route we are taking and whether it is the same as what the host company advertises. If you are using VPS for business, you have to test the lines of various network providers across the country, so that you know which customers this VPS is suitable for. If it is a 55 for personal use, you only need to download a tool called [best trace] to test your local route tracing. Download address: http://dl.138vps.com/windows/IP%E7%BA%BF%E8%B7%AF%E6%9F%A5%E8%AF%A2.exe

Let’s talk about the download link below.

Through IP, we can't really test the network performance of vps. For example, the ping of an Alibaba Cloud vps in mainland China must be very low and there is almost no packet loss. However, if the bandwidth is only 1Mbps, the network must be very poor. Therefore, we also need to test the download speed of the network. Just download it directly, you can download it directly through the browser, or you can test the download speed through professional tools such as FDM. It is also recommended to conduct multiple tests at different points in time.

The last one is LG. Usually LG looks like this when it is opened

We can see the test IP and download link, as well as [Network tests]. So, what is this [Network tests] for? The ping and route tracing we mentioned above are all tests from our local to the VPS, while [Network tests] are tests from the vps to us. The routes taken by the two may be different. You may often hear terms such as [half-way CN2]. This may mean that the route from our local to the vps is the CN2 route, but from the VPS to In our local area, we take another route. Therefore, we must also test the route from vps to our local area. If we have not purchased the VPS, [Network tests] can help us test it.

This article only talks about how to conduct testing from the perspective of beginners, and also tells everyone the various data that need to be tested, but it does not tell you what data is good and what data is bad. This requires everyone to conduct more tests. Summarize your own experience. Because there are different regions, the data has no reference value. Therefore, there are very few test data in the articles we share, just for fear of misleading everyone. Only what we have tested ourselves can be of reference. Other people's tests are not suitable for you.

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