Re: [Xen-devel] [PATCH] libxl: remove freemem_slack

[Mike Latimer <mlatimer@xxxxxxxx>]

On Wednesday, February 25, 2015 03:07:25 PM Stefano Stabellini wrote:
> freemem_slack accounts for the amount of memory to be left free in the
> system because empirical experiments seem to demonstrate that is needed
> for "stability reasons".
> 
> As we don't have any actual data on these stability issues, remove it.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

I just finished tested this patch in conjunction with the LIBXL_MAXMEM_CONSTANT 
removal patch. The freemem_slack zone is no longer reserved, and that aspect 
of the ballooning issue appears fixed.

There is still a problem with xl's freemem loop, but we can investigate that 
further with slack out of the picture.

From my side:

  Acked-by: Mike Latimer <mlatimer@xxxxxxxx>

Thanks,
Mike


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