Hardware performance “obviously” affects software performance and affects how software is optimized. For example, the fact that caches are multiple orders of magnitude faster than RAM means that blocked array accesses give better performance than repeatedly striding through an array. Something that's occasionally overlooked is that hardware performance also has profound implications for system des
![Infinite disk](https://cdn-ak-scissors.b.st-hatena.com/image/square/70ccd2c10b068a566899fcd7f53c697904e158ed/height=288;version=1;width=512/http%3A%2F%2Fdanluu.com%2Fimages%2Finfinite-disk%2Frdma_vs_tcp.png)