Are threads bad? - was: Future of Pypy?

[Marcos Almeida Azevedo]

On Wed, Feb 25, 2015 at 1:46 PM, Marko Rauhamaa <marko at pacujo.net> wrote:

> Marcos Almeida Azevedo <marcos.al.azevedo at gmail.com>:
>
> > Synchronized methods in Java really makes programming life simpler.
> > But I think it is standard practice to avoid this if there is a
> > lighter alternative as synchronized methods are slow. Worse case I
> > used double checked locking.
>
> I have yet to see code whose performance suffers from too much locking.
> However, I have seen plenty of code that suffers from anomalies caused
> by incorrect locking.
>
>
>
Of course code with locking is slower than one without. The locking
mechanism itself is the overhead.  So use it only when necessary.  There is
a reason why double checked locking was invented by clever programmers.



> Marko
> --
> https://mail.python.org/mailman/listinfo/python-list
>



-- 
Marcos | I love PHP, Linux, and Java
<http://javadevnotes.com/java-integer-to-string-examples>
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