结合client & server 和 peer to peer 技术优点,给于一种概念上的突破,或者该说是颠覆,它推翻传统观念,把"愈多人从Server下载档案速度就愈慢"这事实改写成"愈多人从Server下 载档案速度就愈快",堪称分享理论的一大创新。事情是这样子的;通常我们从伺服器下载档案时会建立起一个联系,那联系就像一条特定的通道,充许一定数量的 资料经过。如果同时间有一千个人下载,伺服器就需要一千个通道。如果伺服器无法容纳这么多通道,它可以缩小通道,让比较少的资料通过。或者是限制通道的数 量,超额时其他人就无法连接。第一种折衷方案导致下载速度太慢,第二种则连下载的机会都奉欠。当然,这些问题的前提是很多人要从伺服器下载档案。
BT 借用P2P的分享理念:伺服器把档案分割成较小的部分,用户下载了那些部分后让其他用户下载,从而减少了伺服器的负担。如果伺服器充许十个通道全速下载, 那么这十个用户就成了另外的伺服器,每一个又充许十个通道,那就成了一百个,以此类推,几何速度的增长,所以也就没有了伺服器页担过重的瓶颈,大家全速下 载。用户在下载的同时也上传给其他用户,充份发挥共享理念。
一些我常去的BT网站
http://bt.acnow.net/
http://www.bitower.com/
See how much you can save on reliable, affordable car insurance. Get your free quote online or over the phone and compare auto insurance rates in minutes.
Thứ Tư, 23 tháng 2, 2005
Đăng ký:
Đăng Nhận xét (Atom)
Bài đăng phổ biến
-
我们是去吃早餐时经过的道路上,认识从远方望去是一间庄严佛寺的万佛殿,不太雄伟,像一个朴实衣装的老伯喁在一角阅读早报。后来我们吃过了早餐回到同一道公路,友人把驾驶盘一扭,我们来到了万佛殿。 “关丹最大的佛寺,有一个很漂亮的园景和湖,后面的山有很美丽的石壁。”,这是友人口中说起的万佛...
-
A standard car insurance policy covers your car for so-called social, domestic and personal use, which includes everyday driving such as v...
-
By Tim Gorman As I'm sure you can expect classic car insurance is provided to consumers that own classic cars, vehicles and sometimes ev...
-
Auto insurance as we all know is the insurance consumers purchase for their vehicle be it a car, truck or any other automobile. The purpose ...
-
By David Maillie With car sales prices continuously increasing, recent hikes in gas prices, and ever present sales and state taxes on our ca...
-
Like our life needs to be protected against the unwarned dangers, our assets too should be shielded from all kinds of damages that can happe...
-
There are a host of specialist classic car insurance companies which cater specifically for this sector of the market. However, you may als...
-
早上好。今早我出门的时候天才亮不久,一贯的清晨气息,空气中有种潮湿的味道,马路旁的人行道有人走路(他们都和我怀着同样的目的地),候车亭里有年轻的男女,拉曼大学的巴士开到他们徐徐上车。我数着脚步在人行道上自在的行走,不过活跃的脑子却静不下来,胡思乱想以至我一直忘了数到哪里。经过住宅...
Không có nhận xét nào:
Đăng nhận xét