 Please welcome to the stage executive director of the Linux Foundation, Jim Zenlin. Good morning everyone and welcome to our last day. It has been an amazing week here in China. I have talked to so many people about so many different open source projects. It's just amazing to see all of the activity here in China. In particular, the big increase in participation in global open source projects from Chinese developers and from Chinese industry. Our first speaker represents a company that I think everybody knows who is dramatically increasing their participation in open source, creating new innovative technology and then open sourcing it and sharing in the development globally with our global open source community. Taoma is the principal engineer of Alibaba Cloud. He also runs their Linux kernel development team. Please welcome to the stage from Alibaba Taoma. Before I start my speech, I would like to introduce a number to you. It's 1,682 billion. What is this number? Actually, if you are interested in Alibaba Cloud, you all know that this is a total of all the transactions that Alibaba Cloud has run in 2017. Now I would like to introduce to you the transactions that Alibaba Cloud has run in 2020. From 5,200 million in 2009 to 1,682 billion in 2017, our transactions have increased by nearly 3,000 times. At the same time, our transactions have increased by more than 3,000 times. For the entire Alibaba technical staff, this is a very important challenge. Let's take a look at some of the numbers in last year's Alibaba Cloud. First of all, our data team's transaction value is 4,200,000 times less than a second. Our transaction value has reached 32.5 million seconds. Our payment value is 25.6 million seconds. At the same time, our core transaction chain has been fully integrated. There are tens of millions of devices that support our customers at the same time. So we can say very confidently that Alibaba Cloud is one of the largest cloud-based applications in the world. Here I would like to mention a key word, which is cloud-based. What is cloud-based? Cloud-based actually helps our customers to build a flexible application in the public cloud, private cloud, and cloud-based environment. This technology includes容器服務, service mesh, micro-service, and so on. With these cloud-based technologies, we can observe and manage a very common change under a state of emergency management. I also mentioned some of the key words of cloud-based. For example, observable, manageable, public, and private cloud, and so on. These are some key points of cloud-based technology. Alibaba Group and Alibaba Cloud have been continuously providing services to our customers. Before I open up my speech, I would like to say something. Our Alibaba Cloud is a strong user of cloud-based ecosystem. We are CNCF's Beijing members. We also signed a strategic cooperation with Docker company. At the same time, Alibaba Group and Alibaba Cloud have more than 400 core patches in the community. At the same time, we also opened up our Pouch, our Double, and our RocketMQ. The Pouch容器 has supported millions of容器 in last year's double. And RocketMQ's telecommunication system already has more than 6 million storage seconds. And Double is a very active middle-end company. So, here I can say that Alibaba Cloud is a very strong user of cloud-based ecosystem. Next, I will talk about the relationship between Alibaba Cloud and cloud-based ecosystem. Due to the limited time, I will just give you a brief introduction of our Alibaba Cloud service and some of the work that Alibaba Cloud has done for cloud-based ecosystem. First of all, it is our ECS. I will define it as cloud-based infrastructure. We have completed the entire industry through Shenlong. Through ESID, we have reached a high-performance storage. We have completed cloud-based connectivity with the help of our performance and resources to provide users a stable QoS guarantee. In the end, we have achieved a reliable performance and stability of cloud-based ecosystem. First, I will introduce our Shenlong Cloud service. Shenlong's telecommunication service is a completely high-performance offloaded service. Alibaba Cloud has self-explaned X Dragon telecommunication chip including X Dragon's system software and we have successfully made a completely reliable system. At the same time, Shenlong service has monitored the characteristics of our cloud-based and cloud-based system. First of all, it has cloud-based, for example, it often has some kind of automatic expansion, flexibility, and so on. We have also provided a new way of calculating. Then, we have provided a stable way of calculating. Shenlong has already combined with Alibaba's other products. For example, cloud-based, for example, like the IPC network has achieved a perfect result. Let our customers be able to see the infinite flexibility of the network and storage. Another thing I think Shenlong is more outstanding is that we can support our ARM and Power CPU to provide more options for users' hardware diversity. Next, is our ESID. We also define the cloud-based storage of the cloud-based and the cloud-based storage of the cloud-based storage. In the network, we have used high-performance network framework, Luna and RMA. In the storage, we have used the latest MMSSD and reached 100,000 rps and 100ms of super-low delay. In order to support better support and cloud-based, we also have expanded the support of the GXG and the flexibility. This is the flexibility of the storage and the output performance. It is the first time that we have achieved this in the last two years. I can define it as the cost and flexibility of the cloud-based storage. First, it is the storage. It uses the A0's to achieve the cost of the storage. The other one is the output performance. The price is very low. On the other hand, in addition to the most basic CPU performance guarantee, we also provide a credit mechanism to protect the needs of the users. Through this process, we can finally achieve the cost of the cloud-based storage. Next, it is the work of the performance isolation. Because we all know how to ensure the stability of the performance under a public environment. This is a very challenging work. In the process of the double-layered storage, through continuous delays, we finally form a comprehensive solution for the cloud-based storage. For example, in the CPU, we use NoiseCoin, CPUShare, CPUS Quarta to limit the CPU of the storage. In this aspect, we mainly use memory secretive to perform the isolation and distribution. In the IOW, through the first Quarta, through IOWate, in the network, through TC, through the four-way isolation, we can finally achieve the security of the performance. After talking about the performance of ECS, let me introduce our VPC products. The core function of VPC is to allow the cloud-based data to flow smoothly. At the same time, to support large-scale cloud-based application, VPC has made great adjustments. For example, VPC has supported more than 500,000 devices at the same time. At the same time, in the high-end, we have made great improvements to enable our customers to create a low-end, high-end, high-end, reliable and flexible network. At the same time, VPC has achieved communication capabilities. Through the high-end VPC interaction, our customers can use the cloud-based or high-end to achieve their performance. From there, we have made a high-end cloud-based data flow. With the support of ECS and VPC, we will finally create a cloud-based platform. First of all, it is based on ECS and VPC, so it has very excellent performance and stability. On the other hand, VPC has made many improvements. For example, it has made a special operation system for cloud-based optimization. At the same time, at the same time, with the support of ECS and VPC, VPC can provide a more competitive selection for all cloud-based products. With VPC, our容-based services can be better used. We define it as a cloud-based application management platform. It has two major features. First, a cloud-based容-based service is the world's first cloud-based company through Kubernetes. Through Kubernetes, cloud-based services can help our customers to be more friendly to the cloud. At the same time, users can have the same experience in cloud-based and cloud-based services. The other advantage of cloud-based services is that it has all the products of cloud-based. As you can see here, our容-based services have just mentioned that the cloud-based services have developed a deep layer of cloud-based services. It can also be used according to the characteristics of the business. At the same time, with VPC, OSS, NAS, and other cloud-based services, it can be very simple in terms of configuration and management. For example, it is very easy for us to provide a service to Kubernetes and cloud-based users. After building Kubernetes API and tools, two different Kubernetes services can be provided. First, it is a classic service. It can choose its own OSS and cloud-based services. The other type is the big Kubernetes group. In this field, users don't need to care about their underlying cloud-based services, they just need to care about their business growth. After having the cloud-based services, we also need to emphasize that our cloud-based services are closely related to open-source services. The cloud-based services are the CnCM white-beam services, so we are actively promoting the cloud-based services and the cloud-based services to the cloud-based services. At present, the cloud-based services have provided a lot of cloud-based services and cloud-based services. I mentioned OSS, VPC, Bada, and the cloud-based services. Now, let me introduce our Hanshu calculation, which is the best time for cloud-based services. In this field, our customers don't need to care about their services, but they need to care about their business logic. At the same time, it is very convenient for our cloud-based services to expand their business. For example, our Hanshu calculation and our OSS, which is our corresponding owner, the customer only needs to edit and deal with one image, then the cloud-based services can expand their business. With our Hanshu calculation and our OSS, it is also very convenient to deal with a large-scale data processing. Let me give you another example. Weibo, on our cloud platform, it only needs to connect more of its services and provide external services. Weibo has the ability to expand our business and we can expand our business when the QQS changes. For example, when weibo provides external services from tens of thousands to tens of thousands, our cloud-based services can make sure that it is stable and efficient. The conclusion is that how do we supply our cloud-based services to the current cloud-based services in the current environment? This needs to be connected to our cloud-based services and cloud-based services. The feature of our cloud-based services and cloud-based services is that we can use the cloud-based services to meet our customer's needs and meet our customer's needs. The feature of our cloud-based services was mentioned just now. First of all, it is the same price as our cloud-based services. So, it has the feature of the cloud-based services and cloud-based services. It also has the support of all products for cloud-based services. The other part is the ability to connect to VPC. Our products can make a connection. In the end, we can help our customers to make safe and reasonable. Let me just introduce the above products. In fact, the entire cloud-based services is very big. In addition to computing, storage, network and cloud-based services, we also have cloud-based services and cloud-based services to help our customers to make a deep integration and order. We also hope to help our customers to make better cloud-based services. That's all for today. Thank you.