[Snapshot] speed up disk reading to increase server speed

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Supercache II is the main function of this software. You can think of it as the hard disk cache. The hard disk cache currently on the market is mainly 8 Mb, with this software, you can use as much memory as possible. The default value is 128 MB. If the memory is not large, we recommend that you onlyWindowsThe installation slot is enough to cache MB ~ Simple setup of supercache: 1. Install the supercache firstStart2. In myComputerIn, right-click the disk you want to cache and select the content: 3. select performance again: 4. click supercache II... the current status will appear: 5. click Configure... to set: the cache page size generally does not need to be updated. Selecting a larger value will have a better performance, but the space usage will be a waste of cache size memory to use as the cache, the maximum value must not exceed the remaining amount after the physical memory is started. Otherwise, the reverse effect will be: T: Sort Algorithm form feed.Algorithm, MRU saves CPU resources, and mfu may have a relatively high hit rate read-ahead. Generally, five should be enough. defferred-write is the so-called write-back, which can improve the write efficiency, however, if the machine runs, data will be lost. We do not recommend that you click OK after setting.

ManyManagement Diskless website Network Management We all know that diskless websites have two major bottlenecks: Network Bottleneck. Disk Bottleneck. If the two bottlenecks Solution Then, the performance of the diskless station has been significantly improved, and it can even be close to the performance of the diskless station. Network bottleneck can be achieved through the use of gigabit Nic Or multi-nic traffic distribution, but after the network bottleneck is solved, massive data throughput makes Server The disk is hard to bear. Next we will focus on how to solve the disk bottleneck of the diskless website. ( Click to view moreSoftwareTips )

There are many ways to solve disk bottlenecks. Of course we can use SCSI.Hard DiskOr use multiple hard disks to form a RAID 0 disk array. These methods can effectively increase disk data throughput.Speed. However, the actual data throughput of the disk is still slower than that of the Gigabit Nic, and a large amount of data exchange makes the hard disk hard to handle. If we can save frequently read/write data directly to the memory, all diskless sites read information from the memory instead of from the hard disk, so that the disk bottleneck can be truly solved. Supercache is such a software that supports up to 64 GB of cache capacity.

I. supercache Installation

The installation of the software is very simple. You only need to confirm it all the way. After the installation is complete, restart the software.System. SupercacheSet:

1. Start the software, select the configure tag, and select the partition to be cached. Select "enable supercahce caching on this drive" (1. Figure 2 ). We generally choose diskless boot.FileThe partition.

Figure 1 Figure 2 2. set the cache size (size): (3) Select the Logical Disk in the "tune" label and set the cache percentage. Generally, the larger the cache capacity, the better the effect, however, you must retain at least 50% MB of memory for the system. For example, if the memory size of MB is about, the size of the cache can be larger than 1 GB.

Figure 3

2. The number of diskless sites in a real environment is 100.ServiceConfigured as P4 2.8c, 1 GB memory, and 160 gb sata hard drive. Two Gigabit NICs are used to distribute data from diskless terminals. Diskless terminal is also usedMotherboardIntegrated Gigabit Nic. When there is no supercache, 100 computers are started at the same time, the speed is very slow, and the server hard disk indicator is always on, there are several serversBlue Screen, You need to restart. When there is a supercache, 100 computers can start normally, and the speed of supercache is greatly improved. There is almost no sense of the difference with the disk terminal. The server's hard disk flashes at the beginning, and then basically does not flash.

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Hard disk read/write speed test software: Atto. disk. benchmark.2.41, hDTUNE