[wmf]

Given that your EC2 Web server is limited to 20 Gbps, you're probably better off using Intel zlib and choosing the right compression level tradeoff. If you're willing to pay a fortune for 100 Gbps of zlib then the FPGA might be more appropriate.

For JPEG the GPU instances might be better.

[mozumder]

The problem is the latency associated with software Zlib, on the order of several milliseconds for a typical web response, and the CPU usage the entails, thereby limiting web request-response throughput.