Forecast for randomascii: programming, tech topics, with a chance of unicycling TL;DR – the phrase “90% faster” is interpreted by people in two different ways: 90% less time The speed (ops/sec or km/h) is 90% greater I strongly prefer #2 but due to the ambiguity this phrase should never be used. The preferred unambiguous phrase should be “1.9 times as fast” (or “ten times as fast”, if that is what
![What We Talk About When We Talk About Performance](https://cdn-ak-scissors.b.st-hatena.com/image/square/6af0cae84fa163ac74b6668d25a69536756a3d08/height=288;version=1;width=512/https%3A%2F%2Frandomascii.wordpress.com%2Fwp-content%2Fuploads%2F2018%2F02%2Fimage_thumb.png)