Re: multi-queue scheduler update

[Jesse Pollard]

Mark Hahn <[e-mail]>:
> 
> > >                            microseconds/yield
> > > # threads      2.2.16-22           2.4        2.4-multi-queue
> > > ------------   ---------         --------     ---------------
> > > 16               18.740            4.603         1.455
> > 
> > I remeber the O(1) scheduler from Davide Libenzi was beating the mainline O(N)
> 
> isn't the normal case (as in "The Right Case to optimize") 
> where there are close to zero runnable tasks?  what realistic/sane
> scenarios have very large numbers of spinning threads?  all server
> situations I can think of do not.  not volanomark -loopback, surely!

How about massively parallel compute jobs when synchronizing.

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Jesse I Pollard, II
Email: [e-mail]

Any opinions expressed are solely my own.