Il 10/06/2014 13:48, Michael S. Tsirkin ha scritto:
Even measurable speedups in most scenarios would not matter. I don't care
if a kernel compile takes 2 minutes vs. 110 seconds (for a 10% speedup),
even though it's great that THP can speed up such a common task.
True. But I am not sure why wo
On Tue, Jun 10, 2014 at 01:43:27PM +0200, Paolo Bonzini wrote:
> Il 10/06/2014 13:35, Michael S. Tsirkin ha scritto:
> Why? For example it would be useful for testing on machines that you
> don't
> have root for, and that do not have a hugetlbfs mount point. For example
> you cou
Il 10/06/2014 13:35, Michael S. Tsirkin ha scritto:
Why? For example it would be useful for testing on machines that you don't
have root for, and that do not have a hugetlbfs mount point. For example
you could run the test case from the vhost-user's patches.
Sounds useful, I guess we could al
On Tue, Jun 10, 2014 at 01:29:06PM +0200, Paolo Bonzini wrote:
> Il 10/06/2014 13:23, Michael S. Tsirkin ha scritto:
> >On Tue, Jun 10, 2014 at 01:12:04PM +0200, Paolo Bonzini wrote:
> >>Il 10/06/2014 11:59, Michael S. Tsirkin ha scritto:
> >What's the point compared to memory-backend-ram?
> >>
Il 10/06/2014 13:23, Michael S. Tsirkin ha scritto:
On Tue, Jun 10, 2014 at 01:12:04PM +0200, Paolo Bonzini wrote:
Il 10/06/2014 11:59, Michael S. Tsirkin ha scritto:
What's the point compared to memory-backend-ram?
That you can use shared memory, for example together with vhost-user.
I don
On Tue, Jun 10, 2014 at 01:12:04PM +0200, Paolo Bonzini wrote:
> Il 10/06/2014 11:59, Michael S. Tsirkin ha scritto:
> >> >What's the point compared to memory-backend-ram?
> >>
> >> That you can use shared memory, for example together with vhost-user.
> >
> >I don't think it's a good idea until THP
Il 10/06/2014 11:59, Michael S. Tsirkin ha scritto:
> >What's the point compared to memory-backend-ram?
>
> That you can use shared memory, for example together with vhost-user.
I don't think it's a good idea until THP supports shared memory.
Why? For example it would be useful for testing on
On Tue, Jun 10, 2014 at 10:56:42AM +0200, Paolo Bonzini wrote:
> Il 10/06/2014 10:30, Hu Tao ha scritto:
> >On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
> >>
> >+#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> how about naming it after what it really is? "memory-b
On Tue, Jun 10, 2014 at 11:07:35AM +0200, Igor Mammedov wrote:
> On Tue, 10 Jun 2014 16:30:06 +0800
> Hu Tao wrote:
>
> > On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
> > >
> > > > > > +#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> > > > > how about naming it after w
On Tue, Jun 10, 2014 at 10:56:42AM +0200, Paolo Bonzini wrote:
> Il 10/06/2014 10:30, Hu Tao ha scritto:
> >On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
> >>
> >+#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> how about naming it after what it really is? "memory-b
On Tue, 10 Jun 2014 16:30:06 +0800
Hu Tao wrote:
> On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
> >
> > > > > +#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> > > > how about naming it after what it really is? "memory-backend-hugepage"
> > > > Later we could split it i
Il 10/06/2014 10:30, Hu Tao ha scritto:
On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
+#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
how about naming it after what it really is? "memory-backend-hugepage"
Later we could split it into generic superclass mmap-ed
"memory
On Tue, Jun 10, 2014 at 01:09:32AM -0400, Paolo Bonzini wrote:
>
> > > > +#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> > > how about naming it after what it really is? "memory-backend-hugepage"
> > > Later we could split it into generic superclass mmap-ed
> > > "memory-backend-file" an
> > > +#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
> > how about naming it after what it really is? "memory-backend-hugepage"
> > Later we could split it into generic superclass mmap-ed
> > "memory-backend-file" and have TPH specific code moved into this backend.
>
> OK.
Actually I do
On Mon, Jun 09, 2014 at 01:32:46PM +0200, Igor Mammedov wrote:
> On Mon, 9 Jun 2014 18:25:23 +0800
> Hu Tao wrote:
>
> > From: Paolo Bonzini
> >
> > Signed-off-by: Paolo Bonzini
> > Signed-off-by: Hu Tao
> > ---
> > backends/Makefile.objs | 1 +
> > backends/hostmem-file.c | 107
> >
On Mon, 9 Jun 2014 14:35:53 +0300
"Michael S. Tsirkin" wrote:
> On Mon, Jun 09, 2014 at 01:32:46PM +0200, Igor Mammedov wrote:
> > On Mon, 9 Jun 2014 18:25:23 +0800
> > Hu Tao wrote:
> >
> > > From: Paolo Bonzini
> > >
> > > Signed-off-by: Paolo Bonzini
> > > Signed-off-by: Hu Tao
> > > ---
On Mon, Jun 09, 2014 at 01:32:46PM +0200, Igor Mammedov wrote:
> On Mon, 9 Jun 2014 18:25:23 +0800
> Hu Tao wrote:
>
> > From: Paolo Bonzini
> >
> > Signed-off-by: Paolo Bonzini
> > Signed-off-by: Hu Tao
> > ---
> > backends/Makefile.objs | 1 +
> > backends/hostmem-file.c | 107
> >
On Mon, 9 Jun 2014 18:25:23 +0800
Hu Tao wrote:
> From: Paolo Bonzini
>
> Signed-off-by: Paolo Bonzini
> Signed-off-by: Hu Tao
> ---
> backends/Makefile.objs | 1 +
> backends/hostmem-file.c | 107
>
> 2 files changed, 108 insertions(+)
>
From: Paolo Bonzini
Signed-off-by: Paolo Bonzini
Signed-off-by: Hu Tao
---
backends/Makefile.objs | 1 +
backends/hostmem-file.c | 107
2 files changed, 108 insertions(+)
create mode 100644 backends/hostmem-file.c
diff --git a/backends/Make
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