On Fri, 14 Apr 2017 14:58:14 -0600
Alex Williamson wrote:
> On Sat, 15 Apr 2017 00:51:28 +0530
> Kirti Wankhede wrote:
>
> > On 4/12/2017 12:58 AM, Alex Williamson wrote:
> > > If the mmap_sem is contented then the vfio type1 IOMMU backend will
> > > defer locked page accounting updates to a
On Sat, 15 Apr 2017 00:51:28 +0530
Kirti Wankhede wrote:
> On 4/12/2017 12:58 AM, Alex Williamson wrote:
> > If the mmap_sem is contented then the vfio type1 IOMMU backend will
> > defer locked page accounting updates to a workqueue task. This has a
> > few problems and depending on which side t
On 4/12/2017 12:58 AM, Alex Williamson wrote:
> If the mmap_sem is contented then the vfio type1 IOMMU backend will
> defer locked page accounting updates to a workqueue task. This has a
> few problems and depending on which side the user tries to play, they
> might be over-penalized for unmaps
Hi Alex,
On 11/04/2017 21:28, Alex Williamson wrote:
> If the mmap_sem is contented then the vfio type1 IOMMU backend will
> defer locked page accounting updates to a workqueue task. This has a
> few problems and depending on which side the user tries to play, they
> might be over-penalized for u
On Tue, Apr 11, 2017 at 01:28:06PM -0600, Alex Williamson wrote:
> If the mmap_sem is contented then the vfio type1 IOMMU backend will
> defer locked page accounting updates to a workqueue task. This has a
> few problems and depending on which side the user tries to play, they
> might be over-pena
If the mmap_sem is contented then the vfio type1 IOMMU backend will
defer locked page accounting updates to a workqueue task. This has a
few problems and depending on which side the user tries to play, they
might be over-penalized for unmaps that haven't yet been accounted or
race the workqueue to
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