Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I didn't want to turn this into a language thread, but since you ask... it's Scheme.

Now, Perl5 and threading... that's not a good combination. Perl programmers habitually use a lot of side effects. Any time someone writes code like $x =~ s/a/o/ the parallelism goes away (maybe). To write a parallel program, every part of it has to be written with parallelism in mind. That sounds fine, except that most CPAN modules aren't written like that, so each one has to be inspected by hand.

And as someone noted above: even reading a perl variable can change it, and that's not counting what happens if someone hands you a list of Tie:: variables or objects or something like that...

In Scheme, all I have to do is signal that a part of my code has no side effects and then my macros can do things like parallelise all the arguments to each function call*. I don't have to think about it any further.

*I'm not saying that's a good idea, I'm just saying I can do it...

I didn't believe in evil until I dated it.

In reply to Re^3: Parrot, threads & fears for the future. by jepri
in thread Parrot, threads & fears for the future. by BrowserUk

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (3)
As of 2023-05-29 05:56 GMT
Find Nodes?
    Voting Booth?

    No recent polls found