绝对.请参阅这个
article在IIS 7中前10名的性能改进.
Bandwidth Reduction from Compression
It comes as no surprise that bandwidth costs are one of the top costs of running an Internet-facing datacenter. In addition,the bandwidth required to deliver requested content is a key factor in the perceived responsiveness of your application.
One of the most effective ways to reduce the bandwidth needed to deliver the application responses is to use HTTP compression. This can reduce the size of the response by a substantial amount,often by a factor of 10 when applied to easily compressible text content such as HTML. The best part is that virtually all desktop browsers support it,and decompression costs on desktop hardware are minor compared to the latency savings from sending less data. And since compression is based on Content-Encoding negotiation defined in the HTTP 1.1 protocol,enabling it is safe for clients that do not support compression—these clients simply receive an uncompressed version of the content.
