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在计算机技术日益发展的今天,过不了几天就会有产品的更新换代,当然也只有计算机各部件的发展才能推动整个计算机行业的进步。但是,当子系统及其它周边设备性能不断提高之时,主机板南北桥之间的传输渐渐成为瓶颈。由于共享性的 PCI 总线,导致各子系统的数据在 PCI 总线上产生瓶颈效应。常用的 PCI 总线是33.3MHz 工作频率,32bit 传输位宽,理论最高数据传输率为133MB/s,由于外围设备的数据传输速度不断提高,从而对 PCI 总线提出了更为严峻的考验,比如当多个 Ultra SCSI-160硬盘连接在一起工作时,其总线传输率将能达到峰值的160MB/s,但从设备到达内存之间必
Today, computer technology is growing day by day, there will be product replacement in a few days, of course, only the development of computer components to promote the progress of the computer industry. However, as subsystems and other peripherals continue to improve in performance, the transmission between motherboard North and South bridges gradually becomes a bottleneck. Due to the shared PCI bus, the data of each subsystem has a bottleneck effect on the PCI bus. Commonly used PCI bus is 33.3MHz operating frequency, 32bit transmission bit width, the theoretical maximum data transfer rate of 133MB / s, due to continuous improvement of the peripheral device data transfer speed, and thus put forward a more severe test of the PCI bus, such as when more Ultra SCSI-160 hard drives connected to work together, the bus transfer rate will be able to peak 160MB / s, but the device will reach between the memory