Re: [PATCH v2 01/15] KVM: MMU: fix the count of spte number

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

 



On Sun, Sep 08, 2013 at 10:24:05PM +0800, Xiao Guangrong wrote:
> 
> On Sep 8, 2013, at 10:01 PM, Gleb Natapov <gleb@xxxxxxxxxx> wrote:
> 
> > On Sun, Sep 08, 2013 at 09:55:04PM +0800, Xiao Guangrong wrote:
> >> 
> >> On Sep 8, 2013, at 8:19 PM, Gleb Natapov <gleb@xxxxxxxxxx> wrote:
> >> 
> >>> On Thu, Sep 05, 2013 at 06:29:04PM +0800, Xiao Guangrong wrote:
> >>>> If the desc is the last one and it is full, its sptes is not counted
> >>>> 
> >>> Hmm, if desc is not full but it is not the last one all sptes after the
> >>> desc are not counted too.
> >> 
> >> But the desc must be the last one if it's not full since we always add
> >> new entry or delete entry from the last desc.
> >> 
> > Why do we alway delete entries from last desc? We delete them from the
> > desc we found them in. Current code does not try to move entries between
> > descs, only inside a desc.
> 
> Oh, yes. Sorry, my memory is wrong… :(
> 
> So, currently there has some gaps in desc and it wastes memory.  Can not fix
> them with simple change and  i think it is not worthy to fix them separately since
> after my new algorithm, these should all be fixed… so how about just drop this
> fix?
> 
Yes, if we are going to change algorithm anyway no need to spend time
fixing what we have now.

--
			Gleb.
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux