Not at all my experience. I’ve often tried things like telling Claude this SIMD code I wrote performed poorly and I needed some ideas to make it go faster. Claude usually does a good job rewriting the SIMD to use different and faster operations.
Performance optimization isn’t structured at all. I find it amazing that without access to profilers or anything Claude is able to respond to “anything I can do to improve the speed” with acceptable results.
I'm not a C++ programmer, but wouldn't your example be a fairly structured problem? You wanted to improve performance of a specific part of your code base.
