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Re: [Qemu-devel] [virtio-dev] [PATCH 1/1] virtio-balloon: include buffer
From: |
Tomáš Golembiovský |
Subject: |
Re: [Qemu-devel] [virtio-dev] [PATCH 1/1] virtio-balloon: include buffers and chached memory statistics |
Date: |
Thu, 16 Nov 2017 15:07:33 +0100 |
On Thu, 16 Nov 2017 15:38:21 +0200
Yan Vugenfirer <address@hidden> wrote:
> Hello All,
>
> Michael asked me to comment regarding the possibility to get this statistics
> on Windows.
> By using Win32_OperatingSystem WMI class we can calculate the amount of
> cached memory
> (https://msdn.microsoft.com/en-us/library/aa394239(v=vs.85).aspx
> <https://msdn.microsoft.com/en-us/library/aa394239(v=vs.85).aspx>
> http://brandonlive.com/2010/02/21/measuring-memory-usage-in-windows-7/
> <http://brandonlive.com/2010/02/21/measuring-memory-usage-in-windows-7/>),
> but Windows doesn’t let to distinguish between “cached and buffers” as far as
> I see.
Thanks for the input, Yan. That's definitely good to know.
Tomas
>
> Best regards,
> Yan.
>
> > On 20 Sep 2017, at 19:05, Tomáš Golembiovský <address@hidden> wrote:
> >
> > Signed-off-by: Tomáš Golembiovský <address@hidden>
> > ---
> > hw/virtio/virtio-balloon.c | 2 ++
> > include/standard-headers/linux/virtio_balloon.h | 4 +++-
> > 2 files changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
> > index a705e0ec55..0434784c14 100644
> > --- a/hw/virtio/virtio-balloon.c
> > +++ b/hw/virtio/virtio-balloon.c
> > @@ -49,6 +49,8 @@ static const char *balloon_stat_names[] = {
> > [VIRTIO_BALLOON_S_MEMFREE] = "stat-free-memory",
> > [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory",
> > [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory",
> > + [VIRTIO_BALLOON_S_BUFFERS] = "stat-linux-buffers",
> > + [VIRTIO_BALLOON_S_CACHED] = "stat-linux-cached",
> > [VIRTIO_BALLOON_S_NR] = NULL
> > };
> >
> > diff --git a/include/standard-headers/linux/virtio_balloon.h
> > b/include/standard-headers/linux/virtio_balloon.h
> > index 9d06ccd066..d61efbfcee 100644
> > --- a/include/standard-headers/linux/virtio_balloon.h
> > +++ b/include/standard-headers/linux/virtio_balloon.h
> > @@ -52,7 +52,9 @@ struct virtio_balloon_config {
> > #define VIRTIO_BALLOON_S_MEMFREE 4 /* Total amount of free memory */
> > #define VIRTIO_BALLOON_S_MEMTOT 5 /* Total amount of memory */
> > #define VIRTIO_BALLOON_S_AVAIL 6 /* Available memory as in /proc */
> > -#define VIRTIO_BALLOON_S_NR 7
> > +#define VIRTIO_BALLOON_S_BUFFERS 7 /* Buffers memory as in /proc */
> > +#define VIRTIO_BALLOON_S_CACHED 8 /* Cached memory as in /proc */
> > +#define VIRTIO_BALLOON_S_NR 9
> >
> > /*
> > * Memory statistics structure.
> > --
> > 2.14.1
> >
> >
> > ---------------------------------------------------------------------
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>
--
Tomáš Golembiovský <address@hidden>