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So Hi there, everyone.

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My name is Chandler Carruth.

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I work for Google

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I work on our C++ language platform

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I work on our C++ compilers

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specifically our

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This is going to be kind of an intro

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You can heckle me

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We're going to

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And the first thing

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How many folks here think that

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Everyone thinks that it's important

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I'm going to tell you why I care about performance

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Most of it comes down

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I actually really

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I think he encapsulates

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Software is getting slower more rapidly than hardware is getting faster

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The hardware will catch up

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It turns

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We're really good at

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It's hard to

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And so it's important to

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And to give you an idea of

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I have to mention, he actually wrote

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I did not actually realize thi

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We're going to come back to

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So, how many foks

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Anyone?

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It's a good book

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Okay. I actually think that the idea that software is getting

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And for a parti

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There was a pretty similar event

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how we look at computing devices

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and this event was the iPhone

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When Steve Jobs

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But he was

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Mobile was

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It took the world

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But that's what happened

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We now have to care about

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And we essentially

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You have to choose one

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We're going to choose small

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The other problem

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What do we do about the battery

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How many folks here have charged their phone today

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That's a problem.

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That's not a feature, that's a bug.

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How many

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We've entered

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Power became relevant

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Power efficient instructions

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Optimizing for power usage

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Because this is mostly total junk science.

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Here is the number one

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Finish running the program

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The faster your software runs, the lest

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If I run

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But it's not, okay?

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Here's the thing.

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We've only

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We figured out how to turn them off.

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if you have a

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the way it conserves power is by turning itself off

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The more

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So we actually want to make code faster

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There are some extreme exceptions to it

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But 99.999999% of the time

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But batteries aren't the only

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You'll note that

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The only thing it is doing is taking electricity and turning it into heat.

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That is it's job

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And unfortunately, electricity costs a lot of money

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And so power becomes very, very important

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And I find it interesting