Re: [PATCH] mm, swap: Make VMA based swap readahead configurable

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2 Oct 2017 08:45:40 -0700 Dave Hansen <dave.hansen@xxxxxxxxx> wrote:

> On 09/27/2017 06:02 PM, Huang, Ying wrote:
> > I still think there may be a performance regression for some users
> > because of the change of the algorithm and the knobs, and the
> > performance regression can be resolved via setting the new knob.  But I
> > don't think there will be a functionality regression.  Do you agree?
> 
> A performance regression is a regression.  I don't understand why we are
> splitting hairs as to what kind of regression it is.
> 

Yes.

Ying, please find us a way of avoiding any disruption to existing
system setups.  One which doesn't require that the operator perform a
configuration change to restore prior behaviour/performance.  And
please let's get this done well in advance of the 4.14 release.

Thanks.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>



[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]
  Powered by Linux