I suppose that depends on how many more years you're willing not to contribute somehow to getting a good multi-threading model in Perl.
The first step in achieving a good threading model is understanding the limitations of the existing one.
And the first few steps in doing that is realising that:
- the pthreads api has its own set of limitations and is far too low-level to use as the basis for threading in a HLL.
- fork is a piss poor model for threading.
- Copy On Write (COW) has little or no benefit when the C-level data structures representing Perl-level read-only variables are themselves routinely, internally mutated.
- for threading to be fully effective in a high level language, you need both kernel-space (pre-emptive) threading and user-space (cooperative) threading.
- Software Transaction Memory (STM) only works for undoable (re-startable) operations.
If STM is the only state-sharing mechanism, then a very high proportion of the situations and algorithms that most benefit from threading can no longer be coded!
STM promises an efficient solution to shared-state memory operations which can benefit some classes of algorithm (the kinds of things PDL does for instance), but it holds little promise for a huge range of other threading scenarios.
Did you ever visit one of those Echo Canyons, yell, and wonder if anyone is listening?
Did you ever stick your head into a lion's cage to try and pursuade it to become a vegetarian?
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||