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Re: A question about synchronized threads

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On 4월30일, 오전12시53분, Lew <no...@lewscanon.com> wrote:
> On 04/29/2011 11:35 AM, byhesed wrote:
>
>
>
>
>
>
>
>
>
> > public class A {
> >      synchronized void m1() { ... }
> >      synchronized void m2() { ... }
> >      void m3() { ... }
> > }
>
> > The book explains above code:
>
> >      Given an instance a of class A, when one thread is executing
> > a.m1(),
> >      another thread will be prohibited from executing a.m1() or a.m2().
>
> > I have a question.
>
> > The explanation means than when one thread is executing m1() method,
> > No other threads can execute m1() or m2() thread.
>
> For that particular instance, yes.
>
> > Is it correct? If it is correct, how can I handle it better?
> > I think it is too ineffectual. Does anybody know?
>
> What do you mean by "better"?  What precisely is not the way you want it?
> What is your standard of effectuality?
>
> --
> Lew
> Honi soit qui mal y pense.http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

If too much spaces are marked as critical regions,
then the program will not be optimized.
It wastes too much time in waiting for obtaining a right to access
critical regions.

So, in my question, better means optimization when using threads.

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Thread

A question about synchronized threads byhesed <byhesed@gmail.com> - 2011-04-29 08:35 -0700
  Re: A question about synchronized threads Lew <noone@lewscanon.com> - 2011-04-29 11:53 -0400
    Re: A question about synchronized threads byhesed <byhesed@gmail.com> - 2011-04-29 09:12 -0700
      Re: A question about synchronized threads Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-29 21:01 -0400
        Re: A question about synchronized threads byhesed <byhesed@gmail.com> - 2011-04-29 18:43 -0700
  Re: A question about synchronized threads Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-04-29 17:58 +0200
    Re: A question about synchronized threads byhesed <byhesed@gmail.com> - 2011-04-29 09:09 -0700
      Re: A question about synchronized threads markspace <-@.> - 2011-04-29 11:11 -0700
        Re: A question about synchronized threads Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-04-29 20:19 +0200
          Re: A question about synchronized threads markspace <-@.> - 2011-04-29 15:21 -0700
          Re: A question about synchronized threads Patricia Shanahan <pats@acm.org> - 2011-04-29 21:10 -0700
  Re: A question about synchronized threads dagon@dagon.net (Dagon) - 2011-04-29 15:55 -0700
    Re: A question about synchronized threads Alice <quaxx1108@example.com> - 2011-04-29 20:08 -0400
    Re: A question about synchronized threads markspace <-@.> - 2011-04-29 19:07 -0700
    Re: A question about synchronized threads byhesed <byhesed@gmail.com> - 2011-04-29 18:49 -0700
      Re: A question about synchronized threads Lew <noone@lewscanon.com> - 2011-05-03 18:57 -0400
        Re: A question about synchronized threads Deeyana <d.awlberg@hotmail.invalid> - 2011-05-04 00:17 +0000
          Re: A question about synchronized threads Lew <noone@lewscanon.com> - 2011-05-04 12:45 -0400
            Re: A question about synchronized threads Deeyana <d.awlberg@hotmail.invalid> - 2011-05-04 19:59 +0000

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