Re: More latency regressions with 2.6.11-rc4-RT-V0.7.39-02

Hugh Dickins
2005-02-23T21:04:50Z

On Wed, 23 Feb 2005, Lee Revell wrote:
> > >
> > > Thanks, your patch fixes the copy_pte_range latency.
>
> clear_page_range is also problematic.

Yes, I saw that from your other traces too. I know there are plans
to improve clear_page_range during 2.6.12, but I didn't realize that
it had become very much worse than its antecedent clear_page_tables,
and I don't see missing latency fixes for that. Nick's the expert.

Hugh