From the initial SATA SSD, to PCI-Express SSD and now to M.2 SSD, the performance of storage speed has undergone a subversive change, which can be described by flying. At the same time, TLC flash has been widely used in recent years, and the cost is reduced. Less SSD products have reached the end of the battle with HDD.
The rapid growth of mobile phone processors in recent years has greatly overwhelmed the trend of desktop PC processors. It is natural to think that this is due to the current over-performance of desktops. Since Sandy Bridge, in addition to the processor process from 32nm to 14nm, Power consumption has been reduced, and people's power to upgrade CPUs has gradually declined. The main reason is fatigue performance growth. Therefore, over-performance is not only a means for manufacturers to paralyze users, but users will slowly accept such a performance bottleneck. A performance stepped into a state of medium to low speed growth.
From the initial SATA SSD, to PCI-Express SSD and now to M.2 SSD, the performance of storage speed has undergone a subversive change, which can be described by flying. At the same time, TLC flash has been widely used in recent years, and the cost is reduced. Less SSD products have reached the end of the battle with HDD. Compared with the traditional HDD hard disk, SSD does have the characteristics of extremely fast reading and writing performance, ultra-low power consumption, power saving, anti-shock and anti-fall. These extremely important features poke the user's vitality, and now have the prosperous market, of course, SSD wants to be comprehensive. To replace the traditional hard drive, you also need to give users enough price on the price.
Why is SSD fast? 4KB read and write speed is very important
High-speed aura above the head, SSD is naturally the first choice for new installation users, because a "fast" word, in the traditional sense, the user's understanding of the storage speed "fast" is nothing more than continuous read and write speed, which is in the transmission of large files such as video and pictures. Significant time savings can be achieved. But if you think about how you use SSDs to read and write these large files every day? Actually, it is the Windows system startup time, game loading speed, application content loading time, etc. In fact, these projects are largely read and written of 4KB small files.
Computer storage with 4KB as the block size
We know that in the early HDD era, 4KB-based module storage has been established. SSD now also uses 4KB of modular storage. In short, the storage device internally stores data in blocks of 4KB. The data stream is then split into a number of 4KB modules, while less than 4KB of data is occupied by a single 4KB memory module. After knowing the 4KB module, we can easily understand that the fast storage speed is the filling progress of the 4KB storage module. From this point of view, 4KB continuous and random read and write is basically the most important indicator for measuring the storage module. . Whether the system is running or the application is running, the computer is busy carrying data. The 4KB continuous and random read and write speed directly leads to the user's deviation in these experiences.
Single/double/quad core full simulation test platform method introduction
We know that SSD data read and write storage needs to call the CPU thread to complete, especially a large number of 4KB file addressing, read and write will consume a lot of CPU resources, so the storage performance of SSD and the CPU's execution capabilities constitute a corresponding relationship This is easily overlooked by us because we are confused by the illusion of excessive CPU performance, or why the data server is down because it is overwhelmed. Of course, the speed of the storage device is not only related to the storage device (SSD, HDD), but also has a certain relationship with the CPU, of course, there are factors such as memory.
SSD Performance Flagship Samsung 950 PRO
30L Agriculture Drone,Fertilizer Drone,Gfrp Agricultural Sprayer,Fold Sprayer Drone
Xuzhou Jitian Intelligent Equipment Co. Ltd , https://www.jitianintelligent.com