What is a multi line BGP server and how does it work? When referring to BGP server, single line BGP server and Multi line BGP The server has always been the focus of attention. Single line BGP The server We are familiar with what is multiline BGP server What about? How does it work? Today, let's take a look at Micronet. In short, Micronet believes that the emergence of multi line BGP servers is to improve the performance of BGP servers, CPU is mainly responsible for computing function. Naturally, multiple CPUs will be stronger and more outstanding in performance. How does the multi line BGP server work?
If we compare the CPU to a truck transporting materials, then the goods are the information we need to calculate, The CPU operates like a truck transporting goods. The more goods transported at the same time, the greater the load capacity of the truck, which means the stronger the computing power of the CPU.
Usually a single The CPU system is equivalent to a truck traveling in the lane. Because there are few cars, the transportation capacity is limited. past times, CPU manufacturers have been increasing the truck load, that is, the main frequency, to improve its transportation capacity.
But the BGP server with two CPUs is equivalent to two trucks running on the intersection lane. Most cars are driving on their own lanes, but occasionally they will bump into them and stop to give way. Double The CPU has the strongest transmission capacity, because there are many lines in the car.
Therefore, you can use the simple The number of CPUs is used to judge the performance of the BGP server. Generally speaking, the dual line BGP server is stronger than the single line BGP server. This is well-known, but it is not the only statement.
One way of saying might be, one more The CPU BGP server has strong performance, so we need a high-performance BGP server, just one more There are two or four CPUs, four or eight CPUs, or even hundreds of CPUs. Can this solve the problem of insufficient BGP server performance?
Of course not. The CPU will only affect some performance of the BGP server Besides CPU, it is also related to I/O speed.
As we all know, whether it is Power or Europe, the processor frequency exceeds 1 Ghz, that is, the clock cycle is far less than 1 ns. In a clock cycle, the processor can process multiple instructions, and the average processing time of each instruction is shorter.
Relatively speaking, I/O access will be very slow. The CPU must be the fastest to access its own cache, with a delay of 10 Ns, equivalent to dozens of clock cycles; The latency of accessing local memory can be controlled within 100 ns. When accessing memory across CPU nodes, the latency will reach Us level; If the device on PCI-E is accessed, the delay will pass multiple levels such as VFS and Diver. Even if the device is accessed through DMA, the delay will be at least 10 us.
I/O is the bottleneck of system performance improvement under current technical conditions. If The I/O problem cannot be solved. The increase in the number of processors does not necessarily lead to performance improvement. In extreme cases, I/O will completely consume more resources. Only increase The number of CPUs does not significantly improve BGP server performance.
Therefore, how to establish an I/O model to minimize The impact of I/O on system performance is one of the key issues to be considered in the design of multi line BGP server. Now, the I/O performance of the four line BGP server has reached the bottleneck. In the multi line product The impact of I/O is not as good as expected. This is why there are at most four versions of BGP server products from BGP server manufacturers.
The above is the understanding of Micronet on multi line BGP servers. I believe it can help users to understand the types of BGP servers more deeply. If you have more questions about BGP servers, please consult Micronet. Micronet is an IDC service provider focusing on the rental and hosting of BGP servers. With more than 10 years of industry experience, it is safe, stable, reliable and reassuring. It is a leading enterprise in the domestic IDC industry. It helps thousands of enterprises to achieve network informatization, 7 * 24 hours of manual service, after-sales care free, and has a good reputation.
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