# Re: progress on l2cr

- From: Giuliano Pochini \<hidden\>
- Date: 2000-08-06 03:25:10 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2000/08/9371706
- Thread: https://ratatoskr.run/linuxppc-dev/2000/07/9371015/t.md

```text

> >> >Is there any reason to keep the L2 cache data-only ?
> >>
> >> There are some rare cases where it can be useful, yes. Like when flushing
> >> it, to avoid the flush code to pollute it.
> >
> >A few bytes inside a 1MB cache are't a problem IMHO. Anyway I enabled it and
> >performance compiling programs is 15% lower.
>
> You have no reason to enable "data only" in normal use. It's used during
> the flush cycle of the cache to avoid polluting it while the flush code
> runs, but it's set and unset automatically, so you don't need to care.

Ok, but /proc/.../l2cr tells it's data-only at boot.

Bye.

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```