| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] [PATCH] xen: Implement domain runstates
On Tue, Nov 23, 2010 at 03:48:33PM +0000, George Dunlap wrote:
> On 23/11/10 15:00, Keir Fraser wrote:
>> Well, actually what we care about is #users-who-care. Plumbing into xentop
>> to satisfy an acceptance criteria is probably misguided. Reducing
>> patch-queue length just to make a patch-queue short is also probably
>> misguided.
>
> I wouldn't offer to put it in xentop just because I wanted to get the
> patch out of the patchqueue. I think it's a useful feature, that many
> people would use if they knew about it. If I didn't think it was
> useful, by far the simplest way to get it out of the patchqueue would be
> to simply remove the functionality from the next release of XenServer.
>
> I think the "wait for people to ask for it" won't work very well for
> this particular feature, because it's not the kind of thing I think most
> people would think to ask for. A bit like tmem -- I think it's a
> solution to a problem that people have that's very non-obvious, and must
> therefore be suggested to people rather than waiting for them to ask for
> it. I could write a blog post about it or otherwise try to promote the
> idea, but how many people are going to download a patch in order to try
> it out?
>
> (I'm aware the difference is that tmem's effectiveness can be measured
> with benchmarks while this feature cannot; I'm just saying that in both
> cases, you'd be waiting for a long time for people to demand it.)
>
> xenalyze will calculate and report domain runstate numbers based on vcpu
> runstate_change records, and I've found it useful to get a rough idea
> what's going on when I get traces in from the field.
>
> Of course there's no rush, but it's likely to be forgotten about for
> another two years. :-) (It's already been in the XS patchqueue since
> September 2008.)
>
This feature definitely sounds useful to me :)
-- Pasi
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home