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Re^4: Design advice: Classic boss/worker program memory consumption (context switching is cheap)

by Laurent_R (Abbot)
on May 21, 2014 at 06:30 UTC ( #1086910=note: print w/replies, xml ) Need Help??


in reply to Re^3: Design advice: Classic boss/worker program memory consumption (context switching is cheap)
in thread Design advice: Classic boss/worker program memory consumption

Having to swap pages out and back in surely can make things run much, much longer. 56 processes talking to databases isn't really going to add enough overhead from context switching to cause the total run-time to be "much longer", IME.

Well I guess it depends on our definitions of what "much longer" mean. In our case, it can be up to twice longer, say four hours instead of 2. For us it is sometimes the difference between usable and not usable program.

  • Comment on Re^4: Design advice: Classic boss/worker program memory consumption (context switching is cheap)

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[Corion]: marto: You mean "Sane Dots Dramatic Reading of ITIL" ? ;)
[marto]: Sane Dots, chapter 13: ITIL never work :P
[marto]: sorry, bad pun of it'll :P
[Corion]: :-D
[Corion]: I think that ITIL is mostly to prevent people from doing harm to a system that basically runs unattended :)
[Corion]: Maybe you could reduce ITIL to a computer network, a man and a dog. The network runs the computations. The man is there to feed the dog. The dog is there to prevent the man from accessing the computers.
[marto]: from experience of this side of the fence, it's all about proving to people that you are ITIL compliant, then the client ignores logical processes anyway :P

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