You should not use standard pow and log but approximations of these functions. These are usually faster than any lookup table that fills a good part of the cach

You should not use standard pow and log but approximations of these functions. These are usually faster than any lookup table that fills a good part of the cache and then you stall. But there might be some gray area, depending on the system. Or when full precision is needed. In most audio cases approximations work very well. Atleast that was what my testing showed. edit: it might be different for a single plugin, where there isn't much need for cache, but as the core loop grows bigger, you also need the cache more.