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A comment on I Do Not Know C: Short quiz on undefined behavior (2015). Parent comment

Re:I Do Not Know C: Short quiz on undefined behavior (2015) by adrianN on Tuesday February 14, 2017 @04:39AM (#13642386)
You can try an experiment and build an application like Firefox from source with disabled optimizations. I bet you'll notice a massive difference.

Even more important are things that run in datacenters on thousands and thousands of machines. Even if you suppose that optimizations make only a minuscule difference on the scale of today's infrastructure 5% fewer machines can save huge amounts of electricity.

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Re:I Do Not Know C: Short quiz on undefined behavior (2015) by ArkyBeagle on Wednesday February 15, 2017 @02:28AM (#13650358)
Why would I want to build Firefox from source? I don't build things that run on thousands of machines. Last thing I ran any code on had a 2500 HP diesel; the electronics were in the noise.
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