Hey Jeff,
  Nice writeup.

  Out of curiosity, have you noticed decreased capacity on your multi
threaded front-ends since they reduced the CPU (now 600mhz) and memory (now
128mb) / front-ends?

Robert


On Sep 9, 2011 9:54 PM, "Jeff Schnitzer" <[email protected]> wrote:
>
> My point is that no adjustment to the scheduler will ever really solve
> the problem.  To the extent that it limits your bill, it does so by
> sacrificing user experience.  Sure you might prevent a second instance
> from starting but that just means some poor sod is sitting around
> waiting for his browser to load.
>
> The solution to this is multithreading.  Hard stop.
>
> Jeff
> PS Fixed the colors... still getting used to tumblr.
>
> On Fri, Sep 9, 2011 at 6:29 PM, Steve <[email protected]>
wrote:
> > Thanks for the good FAQ.  I have to strenuously disagree though with
calling
> > all the scheduler complaints a red herring.
> > It's legitimate complaint and mindbogglingly simple to fix by giving
users a
> > control called Max-Instances instead of Max-Idle-Instances.  Right now
we
> > have to play all these stupid tuning games to keep the scheduler from
> > fanning things out in unsustainable ways.  If we could just set a hard
limit
> > we could make sure it never fanned out past a certain level of instance
> > parallelism.  It's such a freaking easy thing to fix but Google doesn't
want
> > to do that for whatever internal reason.
> > Sigh...
> >
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