Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc

[michael]

Hi,

Stefan Roscher wrote:
> On Wednesday 22 April 2009 04:10:18 pm michael wrote:
>   
> > Hi,
> >
> >     
>
>   
> > I don't take the point, if it is not import use the vmalloc. Why you try 
> > with a kmalloc
> > alloc first? and why do not use kzalloc?
> >     
>
> Because kmalloc() is faster than vmalloc() causing a huge performance win
> when someone allocates a large number of queue pairs. We fall back to
> vmalloc() only if kmalloc() can't deliver the memory chunk.
>   
Sorry I catch later the performace issue.
> We don't need kzalloc because we fill the list right after the alloc.
>
> regards Stefan
>   
Regards Michael
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@xxxxxxxxxx
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>
>   

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/