What We Talk About When We Talk About PerformanceForecast 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
