Christian Flickinger has written up a new blog post today showing some of the benchmarks he's worked up around the performance of various caching tools with the WinCache caching tool from Microsoft coming out as a leader.

The [WinCache] documentation makes no mention of Apache, only IIS. I decided to give it a try, and to my amazement, WinCache worked in Apache on Windows. After that I decided to compare the performance of WinCache with the other available options for Windows+Apache.

He defines his testing environment - hardware, software and the different opcode caching tools - and includes his testing technique. His results, measured in requests per second, are interesting but show that, for his configuration, the WinCache tool's performance topped the others on Windows.