Re: lmbench lat_mmap slowdown with CONFIG_PARAVIRT

[Jeremy Fitzhardinge]

Ingo Molnar wrote:
> This is a very serious paravirt_ops slowdown affecting the native kernel's 
> performance to the tune of 5-10% in certain workloads.
>
> It's been about 2 years ago that paravirt_ops went upstream, when you told 
> us that something like this would never happen, that paravirt_ops is 
> designed so flexibly that it will never hinder the native kernel - and if 
> it does it will be easy to fix it. Now is the time to fulfill that 
> promise.
>   

Yep, working on it.

   J
--
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/