Hi Kash, seems to me were allowed to use as much memory as our apps
can acquire but no more (not helpful I know) and since normal app
requests are shooting for below 1 second response theres probably not
a lot of pressure to beef that up above the current amount which from
what Ive gathered seems to be at least 180 MB - doing a search for
'appengine soft memory limit MB' gives some ballparks.
I expect running multiple apps per server box would be painful if it
got to the point where all the servers ram had to be paged to disk
when swapping between apps to handle incoming requests.
I haven't used the task queue yet so don't know what the soft limit is
there (all though I expect to run up against it when I do) - hopefully
if it is low though there would be enough interest from developers for
that to be raised in the future.
[I would be curious to know what the results are if you happen to do
some stress testing using tasks]
sorry I can't be more help, Shane
On Dec 21, 10:55 pm, kash <[email protected]> wrote:
> Hi Norlesh,
>
> I sent a request for GAE team through a CPU quota increase request
> form. i asked them about the memory issue. i got the below reply,
> which i still find a bot vague. can you have a look at it and tell me
> what you think
>
> Google support reply: "Hi. Thank you for choosing App Engine to host
> your application. Apps with
> billing enabled are no longer limited to 500 requests per second. If
> you
> keep your average latency under 1000 ms, your app should be able to
> scale
> as high as necessary to handle the load.
>
> The best way to ensure your application scales is to keep all or most
> user-facing requests as short as possible, generally under 1 second,
> and
> move any long-running processes to the background using the task queue
> API. For more information, please consult the documentation and
> community
> forums.
>
> http://code.google.com/appengine/docs/java/taskqueue/http://code.google.com/appengine/community.html
>
> As far as RAM usage goes, it's pretty much whatever VM you have access
> to.
> You will get memory errors if you exceed the maximum amount, but we
> don't
> charge for memory usage otherwise.
>
> Thank you.
> -wesley, App Engine support team
>
> Original Message Follows:
> ------------------------
> From: [email protected]
> Subject: App Engine CPU quota increase
> Date: Mon, 20 Dec 2010 14:23:16 +0000
>
>
>
>
>
>
>
>
>
>
>
>
>
> > social network
>
> > ApplicationIdentifier: not decided yet
> > AutoDetectedBrowser: Google Chrome 8
> > AutoDetectedOS: Intel Macintosh OS X
> > IssueType: appengine
> > Language: en
> > bug: cpu
> > cause: I am trying to build a social network that is expected to reach
> > around 1 million users in 2 years. I want t make sure before i start
> > developing this app on google app engine that i can expand freely. I
> also
> > find one information missing, which is the additional RAM usage cost. i
> > appreciate if you can provide me more detailed information. I went
> through
> > the whole app engine guide including the quotas and billing but still
> did
> > not find this info.
>
> > thanks,
> > first_name: Mohamed
> > last_name: Kash
> > qps: 10000
>
> On Dec 21, 2:34 am, Norlesh <[email protected]> wrote:
>
>
>
>
>
>
>
> > Hi Kash,
> > I have no idea about what the charge would be - only thing I found to
> > suggest that it could be possible in the future was something eluded
> > to in the last post
> > ofhttp://code.google.com/p/googleappengine/issues/detail?id=1646
> > on 13 Dec where a googler mentioned checking out the 'background
> > servers feature' when its released in response to someone asking about
> > a memory intensive use case (you know as much as I do about when that
> > release is but its on the road map).
> > -r Shane
>
> > On Dec 20, 11:51 pm, Mohamed kash <[email protected]> wrote:
>
> > > Hi All .. I wonder if anyone knows how google plans to charge for
> > > additional RAM usage. they never mentioned that
>
> > > /Kash
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