[virtio-dev] [PATCH v2] content: document balloon memory statistics

[virtio-dev] [PATCH v2] content: document balloon memory statistics

[Tomáš Golembiovský]

Linux kernel provides some balloon memory statistics that were not
included in the specs. Include them to avoid any ID clashes in the
future.

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
---
 content.tex | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/content.tex b/content.tex
index c7ef7fd..7e9e026 100644
--- a/content.tex
+++ b/content.tex
@@ -5028,6 +5028,8 @@ struct virtio_balloon_stat {
 #define VIRTIO_BALLOON_S_MINFLT   3
 #define VIRTIO_BALLOON_S_MEMFREE  4
 #define VIRTIO_BALLOON_S_MEMTOT   5
+#define VIRTIO_BALLOON_S_AVAIL    6
+#define VIRTIO_BALLOON_S_CACHES   7
         le16 tag;
         le64 val;
 } __attribute__((packed));
@@ -5109,6 +5111,13 @@ first buffer.
 
 \item[VIRTIO_BALLOON_S_MEMTOT (5)] The total amount of memory available
   (in bytes).
+
+\item[VIRTIO_BALLOON_S_AVAIL (6)] An estimate of how much memory is available
+  (in bytes) for starting new applications, without pushing the system to swap.
+
+\item[VIRTIO_BALLOON_S_CACHES (7)] The amount of memory, in bytes, that can be
+  quickly reclaimed without additional I/O. Typically these pages are used for
+  caching files from disk.
 \end{description}
 
 \section{SCSI Host Device}\label{sec:Device Types / SCSI Host Device}
-- 
2.16.1


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Re: [virtio-dev] [PATCH v2] content: document balloon memory statistics

[Stefan Hajnoczi]

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On Thu, Feb 22, 2018 at 01:50:52PM +0100, Tomáš Golembiovský wrote:
> Linux kernel provides some balloon memory statistics that were not
> included in the specs. Include them to avoid any ID clashes in the
> future.
> 
> Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
> ---
>  content.tex | 9 +++++++++
>  1 file changed, 9 insertions(+)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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[virtio-dev] Re: [PATCH v2] content: document balloon memory statistics

[Michael S. Tsirkin]

On Thu, Feb 22, 2018 at 01:50:52PM +0100, Tomáš Golembiovský wrote:
> Linux kernel provides some balloon memory statistics that were not
> included in the specs. Include them to avoid any ID clashes in the
> future.
> 
> Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>

OK when you feel it's ready, pls open an issue in github,
don't forget to include link to list archives (this email).
Then send an email so I can start the voting.

> ---
>  content.tex | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/content.tex b/content.tex
> index c7ef7fd..7e9e026 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -5028,6 +5028,8 @@ struct virtio_balloon_stat {
>  #define VIRTIO_BALLOON_S_MINFLT   3
>  #define VIRTIO_BALLOON_S_MEMFREE  4
>  #define VIRTIO_BALLOON_S_MEMTOT   5
> +#define VIRTIO_BALLOON_S_AVAIL    6
> +#define VIRTIO_BALLOON_S_CACHES   7
>          le16 tag;
>          le64 val;
>  } __attribute__((packed));
> @@ -5109,6 +5111,13 @@ first buffer.
>  
>  \item[VIRTIO_BALLOON_S_MEMTOT (5)] The total amount of memory available
>    (in bytes).
> +
> +\item[VIRTIO_BALLOON_S_AVAIL (6)] An estimate of how much memory is available
> +  (in bytes) for starting new applications, without pushing the system to swap.
> +
> +\item[VIRTIO_BALLOON_S_CACHES (7)] The amount of memory, in bytes, that can be
> +  quickly reclaimed without additional I/O. Typically these pages are used for
> +  caching files from disk.
>  \end{description}
>  
>  \section{SCSI Host Device}\label{sec:Device Types / SCSI Host Device}
> -- 
> 2.16.1

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[virtio-dev] Re: [PATCH v2] content: document balloon memory statistics

[Michael S. Tsirkin]

On Thu, Feb 22, 2018 at 01:50:52PM +0100, Tomáš Golembiovský wrote:
> Linux kernel provides some balloon memory statistics that were not
> included in the specs. Include them to avoid any ID clashes in the
> future.
> 
> Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>

No comments on this so far. When you feel it's ready to vote,
please open a github issue:
https://github.com/oasis-tcs/virtio-spec/issues
Set it as ready to vote and I'll start voting.

> ---
>  content.tex | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/content.tex b/content.tex
> index c7ef7fd..7e9e026 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -5028,6 +5028,8 @@ struct virtio_balloon_stat {
>  #define VIRTIO_BALLOON_S_MINFLT   3
>  #define VIRTIO_BALLOON_S_MEMFREE  4
>  #define VIRTIO_BALLOON_S_MEMTOT   5
> +#define VIRTIO_BALLOON_S_AVAIL    6
> +#define VIRTIO_BALLOON_S_CACHES   7
>          le16 tag;
>          le64 val;
>  } __attribute__((packed));
> @@ -5109,6 +5111,13 @@ first buffer.
>  
>  \item[VIRTIO_BALLOON_S_MEMTOT (5)] The total amount of memory available
>    (in bytes).
> +
> +\item[VIRTIO_BALLOON_S_AVAIL (6)] An estimate of how much memory is available
> +  (in bytes) for starting new applications, without pushing the system to swap.
> +
> +\item[VIRTIO_BALLOON_S_CACHES (7)] The amount of memory, in bytes, that can be
> +  quickly reclaimed without additional I/O. Typically these pages are used for
> +  caching files from disk.
>  \end{description}
>  
>  \section{SCSI Host Device}\label{sec:Device Types / SCSI Host Device}
> -- 
> 2.16.1

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[virtio-dev] Re: [PATCH v2] content: document balloon memory statistics

[Tomáš Golembiovský]

On Sat, 10 Mar 2018 00:53:48 +0200
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Thu, Feb 22, 2018 at 01:50:52PM +0100, Tomáš Golembiovský wrote:
> > Linux kernel provides some balloon memory statistics that were not
> > included in the specs. Include them to avoid any ID clashes in the
> > future.
> > 
> > Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>  
> 
> No comments on this so far. When you feel it's ready to vote,
> please open a github issue:
> https://github.com/oasis-tcs/virtio-spec/issues

I have opened the issue here:

    https://github.com/oasis-tcs/virtio-spec/issues/4

Sorry for the delay.


> Set it as ready to vote and I'll start voting.

I have no idea how to do that.

    Tomas

-- 
Tomáš Golembiovský <tgolembi@redhat.com>

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