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

- From: Paul E. McKenney \<hidden\>
- Date: 2016-08-19 21:19:45 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/08/4818648
- Thread: https://ratatoskr.run/linux-api/2016/08/4818611/t.md

```text
On Fri, Aug 19, 2016 at 01:56:11PM -0700, Andi Kleen wrote:
> > 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.

Agreed, a competent default malloc() in glibc would be a very nice change
from the current state.

							Thanx, Paul
```