Re: Adaptive Readahead V14 - statistics question...

Fengguang Wu
2006-06-01T05:51:20Z

On Wed, May 31, 2006 at 11:50:21PM +0200, Voluspa wrote:
> _Massive READ_
>
> [/usr had some 490000 files]
>
> "cd /usr ; time find . -type f -exec md5sum {} \;"
>
> 2.6.17-rc5 ------- 2.6.17-rc5-ar
>
> real 21m21.009s -- 21m37.663s
> user 3m20.784s -- 3m20.701s
> sys 6m34.261s -- 6m41.735s
>
> I had planned to run this at least three times, but didn't realize I had
> 12 compiled kernel trees and 3 uncompiled there... So, a one-shot had to
> do. But it's still significant.

Sorry, it is a known regression. I'd like to fix it in the next
release.

Thanks,
Wu