# "The time spent in V8 during page load of meta.discourse.org seems to drop by like 13% with these changes"

**URL:** https://meta.discourse.org/t/the-time-spent-in-v8-during-page-load-of-meta-discourse-org-seems-to-drop-by-like-13-with-these-changes/69572
**Category:** Development
**Created:** [2017 年 9 月 7 日午後 6:17 UTC](https://meta.discourse.org/t/the-time-spent-in-v8-during-page-load-of-meta-discourse-org-seems-to-drop-by-like-13-with-these-changes/69572 "2017-09-07T18:17:26Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Sujan](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sujan/32/70979_2.png) [@Sujan](https://meta.discourse.org/u/Sujan)
#### Post date: [2017 年 9 月 7 日午後 6:17 UTC](https://meta.discourse.org/t/the-time-spent-in-v8-during-page-load-of-meta-discourse-org-seems-to-drop-by-like-13-with-these-changes/69572/1 "2017-09-07T18:17:26Z")

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> **[Restoring for..in peak performance · Benedikt Meurer](https://benediktmeurer.de/2017/09/07/restoring-for-in-peak-performance/)**
>
> Personal website of Benedikt Meurer, JavaScript Engine Hacker and Programming Language Enthusiast.

> Besides just micro-benchmarks, it’s obviously also interesting to see direct real-world impact of such changes. Not a lot of websites are dominated by for..in peak performance in a way that it makes a real difference, but there’s one interesting example that seems to stand out: The time spent in V8 during page load of [meta.discourse.org](http://meta.discourse.org) seems to drop by like 13% with these changes:
> 
> ![](https://global.discourse-cdn.com/meta/original/3X/3/3/337f96cff32a0f3ca3ae73eab085fd4ce520eb86.png)

That will be neat…

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### Author: ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [2017 年 9 月 8 日午前 12:37 UTC](https://meta.discourse.org/t/the-time-spent-in-v8-during-page-load-of-meta-discourse-org-seems-to-drop-by-like-13-with-these-changes/69572/2 "2017-09-08T00:37:28Z")

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Obviously we are huge fans of Benedikt. 😉

Do read his other blog entry it is quite essential

> **[The truth about traditional JavaScript benchmarks · Benedikt Meurer](https://benediktmeurer.de/2016/12/16/the-truth-about-traditional-javascript-benchmarks/)**
>
> Personal website of Benedikt Meurer, JavaScript Engine Hacker and Programming Language Enthusiast.

and the followup

> **[Following up on JavaScript benchmarks · Benedikt Meurer](https://benediktmeurer.de/2016/12/19/following-up-on-javascript-benchmarks/)**
>
> Personal website of Benedikt Meurer, JavaScript Engine Hacker and Programming Language Enthusiast.

TL;DR they spent too much time optimizing for benchmarks that didn’t actually represent real web performance! That’s why Google Octane is deprecated..