# Re: \[RFC PATCH v8 1/9\] Restartable sequences system call

- From: Andi Kleen \<hidden\>
- Date: 2016-08-19 20:56:17 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/08/4818638
- Thread: https://ratatoskr.run/linux-api/2016/08/4818611/t.md

```text
> Nobody gets a cpu number just to get a cpu number - it's not a useful
> thing to benchmark. What does getcpu() so much that we care?

malloc is the primary target I believe. Saves lots of memory to keep
caches per CPU rather than per thread.

-Andi
```