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Caching is an abstraction, not an optimization

(buttondown.com)
134 points samuel246 | 1 comments | 01 Jul 25 10:42 UTC | HN request time: 0.207s | source
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ckdot2 ◴[03 Jul 25 19:03 UTC] No.44458190[source]▶
"I think now caching is probably best understood as a tool for making software simpler" - that's cute. Caching might be beneficial for many cases, but if it doesn't do one thing then this is simplifying software. There's that famous quote "There are only two hard things in Computer Science: cache invalidation and naming things.", and, sure, it's a bit ironical, but there's some truth in there.
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AdieuToLogic ◴[03 Jul 25 23:43 UTC] No.44460039[source]▶
> There's that famous quote "There are only two hard things in Computer Science: cache invalidation and naming things.", and, sure, it's a bit ironical, but there's some truth in there.

The joke form of this quote goes along the lines of:

  There are only two hard things in Computer Science: cache 
  invalidation, naming things, and off-by-one errors.
:-D
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AndrewOMartin ◴[04 Jul 25 09:01 UTC] No.44462642[source]▶
Which leads to

> I don't see what's so hard about DNS, it's just cache invalidation and naming things.

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1. manyaoman ◴[04 Jul 25 09:30 UTC] No.44462857[source]▶
... and avoiding off-by-one errors.