Re: WAPBL on multicore, 1 (ONE!) process...

["Martin S. Weber" <Ephaeton%gmx.net@localhost>]

On Wed, Oct 29, 2008 at 12:22:31AM +0100, Havard Eidnes wrote:
> Quoting from the PR addition I wrote:
> 
>   I've repeated this experiment on a non-wapbl file system on the same
>   system, but there the difference was in the "sync loop" disfavour:
> 
>   5799.240u 2232.222s 24:57.93 536.1%     0+0k 494+710112io 32612pf+0w
>   vs.
>   5881.837u 2435.640s 27:14.19 508.9%     0+0k 0+720501io 32646pf+0w
> 
>   and the number of IOs is comparable.
> 
> So... not 15 minutes, but also not over 2 hours, which was the
> state with WAPBL before adding that unpublished (?) patch of
> Simon and turning off disk cache flushing.

Overread that.

Oh ok. So it's just a mere 15% worse. Hey, why are you complaining:)
I'm talking about > 3000% worse, for a single process. The last time
a copy of roughly 5 gb of data took hours for me is when I used
10mbit ethernet... 

Regards,

-Martin